From 4185392da4b4b494e51934c51b999b4df424afba Mon Sep 17 00:00:00 2001 From: Jesse Gross Date: Mon, 6 Aug 2012 15:49:47 -0700 Subject: openvswitch: Relax set header validation. When installing a flow with an action to set a particular field we need to validate that the packets that are part of the flow actually contain that header. With IP we use zeroed addresses and with TCP/UDP the check is for zeroed ports. This check is overly broad and can catch packets like DHCP requests that have a zero source address in a legitimate header. This changes the check to look for a zeroed protocol number for IP or for both ports be zero for TCP/UDP before considering the header to not exist. Reported-by: Ethan Jackson Signed-off-by: Jesse Gross --- net/openvswitch/datapath.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c index d8277d29e710..cf58cedad083 100644 --- a/net/openvswitch/datapath.c +++ b/net/openvswitch/datapath.c @@ -425,10 +425,10 @@ static int validate_sample(const struct nlattr *attr, static int validate_tp_port(const struct sw_flow_key *flow_key) { if (flow_key->eth.type == htons(ETH_P_IP)) { - if (flow_key->ipv4.tp.src && flow_key->ipv4.tp.dst) + if (flow_key->ipv4.tp.src || flow_key->ipv4.tp.dst) return 0; } else if (flow_key->eth.type == htons(ETH_P_IPV6)) { - if (flow_key->ipv6.tp.src && flow_key->ipv6.tp.dst) + if (flow_key->ipv6.tp.src || flow_key->ipv6.tp.dst) return 0; } @@ -460,7 +460,7 @@ static int validate_set(const struct nlattr *a, if (flow_key->eth.type != htons(ETH_P_IP)) return -EINVAL; - if (!flow_key->ipv4.addr.src || !flow_key->ipv4.addr.dst) + if (!flow_key->ip.proto) return -EINVAL; ipv4_key = nla_data(ovs_key); -- cgit v1.2.1 From 61a0cfb008f57ecf7eb28ee762952fb42dc15d15 Mon Sep 17 00:00:00 2001 From: Andre Guedes Date: Wed, 1 Aug 2012 20:34:15 -0300 Subject: Bluetooth: Fix use-after-free bug in SMP If SMP fails, we should always cancel security_timer delayed work. Otherwise, security_timer function may run after l2cap_conn object has been freed. This patch fixes the following warning reported by ODEBUG: WARNING: at lib/debugobjects.c:261 debug_print_object+0x7c/0x8d() Hardware name: Bochs ODEBUG: free active (active state 0) object type: timer_list hint: delayed_work_timer_fn+0x0/0x27 Modules linked in: btusb bluetooth Pid: 440, comm: kworker/u:2 Not tainted 3.5.0-rc1+ #4 Call Trace: [] ? free_obj_work+0x4a/0x7f [] warn_slowpath_common+0x7e/0x97 [] warn_slowpath_fmt+0x41/0x43 [] debug_print_object+0x7c/0x8d [] ? __queue_work+0x241/0x241 [] debug_check_no_obj_freed+0x92/0x159 [] slab_free_hook+0x6f/0x77 [] ? l2cap_conn_del+0x148/0x157 [bluetooth] [] kfree+0x59/0xac [] l2cap_conn_del+0x148/0x157 [bluetooth] [] l2cap_recv_frame+0xa77/0xfa4 [bluetooth] [] ? trace_hardirqs_on_caller+0x112/0x1ad [] l2cap_recv_acldata+0xe2/0x264 [bluetooth] [] hci_rx_work+0x235/0x33c [bluetooth] [] ? process_one_work+0x126/0x2fe [] process_one_work+0x185/0x2fe [] ? process_one_work+0x126/0x2fe [] ? lock_acquired+0x1b5/0x1cf [] ? le_scan_work+0x11d/0x11d [bluetooth] [] ? spin_lock_irq+0x9/0xb [] worker_thread+0xcf/0x175 [] ? rescuer_thread+0x175/0x175 [] kthread+0x95/0x9d [] kernel_threadi_helper+0x4/0x10 [] ? retint_restore_args+0x13/0x13 [] ? flush_kthread_worker+0xdb/0xdb [] ? gs_change+0x13/0x13 This bug can be reproduced using hctool lecc or l2test tools and bluetoothd not running. Signed-off-by: Andre Guedes Signed-off-by: Gustavo Padovan --- net/bluetooth/smp.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c index 901a616c8083..98ffc1b6a6fa 100644 --- a/net/bluetooth/smp.c +++ b/net/bluetooth/smp.c @@ -267,10 +267,10 @@ static void smp_failure(struct l2cap_conn *conn, u8 reason, u8 send) mgmt_auth_failed(conn->hcon->hdev, conn->dst, hcon->type, hcon->dst_type, reason); - if (test_and_clear_bit(HCI_CONN_LE_SMP_PEND, &conn->hcon->flags)) { - cancel_delayed_work_sync(&conn->security_timer); + cancel_delayed_work_sync(&conn->security_timer); + + if (test_and_clear_bit(HCI_CONN_LE_SMP_PEND, &conn->hcon->flags)) smp_chan_destroy(conn); - } } #define JUST_WORKS 0x00 -- cgit v1.2.1 From bc21fde2d549d1cb1ebef04016eb7affa43bb5c1 Mon Sep 17 00:00:00 2001 From: Yevgeniy Melnichuk Date: Tue, 7 Aug 2012 19:48:10 +0530 Subject: Bluetooth: Add support for Sony Vaio T-Series Add Sony Vaio T-Series Bluetooth Module( 0x489:0xE036) to the blacklist of btusb module and add it to the ath3k module. output of cat /sys/kernel/debug/usb/devices T: Bus=01 Lev=02 Prnt=02 Port=01 Cnt=01 Dev#= 5 Spd=12 MxCh= 0 D: Ver= 1.10 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=0489 ProdID=e036 Rev= 0.02 S: Manufacturer=Atheros Communications S: Product=Bluetooth USB Host Controller S: SerialNumber=Alaska Day 2006 C:* #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=100mA I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=81(I) Atr=03(Int.) MxPS= 16 Ivl=1ms E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 0 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 0 Ivl=1ms I: If#= 1 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 9 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 9 Ivl=1ms I: If#= 1 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 17 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 17 Ivl=1ms I: If#= 1 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 25 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 25 Ivl=1ms I: If#= 1 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 33 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 33 Ivl=1ms I: If#= 1 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 49 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 49 Ivl=1ms Signed-off-by: Yevgeniy Melnichuk Signed-off-by: Mohammed Shafi Shajakhan Acked-by: Marcel Holtmann Signed-off-by: Gustavo Padovan --- drivers/bluetooth/ath3k.c | 2 ++ drivers/bluetooth/btusb.c | 1 + 2 files changed, 3 insertions(+) diff --git a/drivers/bluetooth/ath3k.c b/drivers/bluetooth/ath3k.c index 11f36e502136..fc2de5528dcc 100644 --- a/drivers/bluetooth/ath3k.c +++ b/drivers/bluetooth/ath3k.c @@ -86,6 +86,7 @@ static struct usb_device_id ath3k_table[] = { /* Atheros AR5BBU22 with sflash firmware */ { USB_DEVICE(0x0489, 0xE03C) }, + { USB_DEVICE(0x0489, 0xE036) }, { } /* Terminating entry */ }; @@ -109,6 +110,7 @@ static struct usb_device_id ath3k_blist_tbl[] = { /* Atheros AR5BBU22 with sflash firmware */ { USB_DEVICE(0x0489, 0xE03C), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x0489, 0xE036), .driver_info = BTUSB_ATH3012 }, { } /* Terminating entry */ }; diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index cef3bac1a543..2fe7776dc49c 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -141,6 +141,7 @@ static struct usb_device_id blacklist_table[] = { /* Atheros AR5BBU12 with sflash firmware */ { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 }, /* Broadcom BCM2035 */ { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU }, -- cgit v1.2.1 From db8b624d55e65ad5d8211a9fef66fa7f16bd13a0 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Sun, 19 Aug 2012 09:02:52 +0200 Subject: ASoC: imx-sgtl5000: fix error return code Initialize ret on the second call to imx_audmux_v2_configure_port so that the subsequent test checks that result and not the previous one. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // ( if@p1 (\(ret < 0\|ret != 0\)) { ... return ret; } | ret@p1 = 0 ) ... when != ret = e1 when != &ret *if(...) { ... when != ret = e2 when forall return ret; } // Signed-off-by: Julia Lawall Signed-off-by: Mark Brown --- sound/soc/fsl/imx-sgtl5000.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/fsl/imx-sgtl5000.c b/sound/soc/fsl/imx-sgtl5000.c index fb21b17f17f5..199408ec4261 100644 --- a/sound/soc/fsl/imx-sgtl5000.c +++ b/sound/soc/fsl/imx-sgtl5000.c @@ -94,7 +94,7 @@ static int __devinit imx_sgtl5000_probe(struct platform_device *pdev) dev_err(&pdev->dev, "audmux internal port setup failed\n"); return ret; } - imx_audmux_v2_configure_port(ext_port, + ret = imx_audmux_v2_configure_port(ext_port, IMX_AUDMUX_V2_PTCR_SYN, IMX_AUDMUX_V2_PDCR_RXDSEL(int_port)); if (ret) { -- cgit v1.2.1 From b18e93a493626c1446f9788ebd5844d008bbf71c Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Sun, 19 Aug 2012 09:02:53 +0200 Subject: ASoC: ux500_msp_i2s: better use devm functions and fix error return code Remove unnecessary calls to devm_kfree and replace iounmap by devm_iounmap (and use resource_size for the third argument). These changes make it possible to remove the error-handling code at the end of ux500_msp_i2s_init_msp, and all of the gotos become direct returns. In the case of the second call to devm_kzalloc, the return variable ret was not initialized. Here it is changed to a direct return of -ENOMEM. A simplified version of the semantic match that finds the second problem is as follows: (http://coccinelle.lip6.fr/) // ( if@p1 (\(ret < 0\|ret != 0\)) { ... return ret; } | ret@p1 = 0 ) ... when != ret = e1 when != &ret *if(...) { ... when != ret = e2 when forall return ret; } // Signed-off-by: Julia Lawall Signed-off-by: Mark Brown --- sound/soc/ux500/ux500_msp_i2s.c | 25 +++++-------------------- 1 file changed, 5 insertions(+), 20 deletions(-) diff --git a/sound/soc/ux500/ux500_msp_i2s.c b/sound/soc/ux500/ux500_msp_i2s.c index 5c472f335a64..eb85113d472a 100644 --- a/sound/soc/ux500/ux500_msp_i2s.c +++ b/sound/soc/ux500/ux500_msp_i2s.c @@ -663,7 +663,6 @@ int ux500_msp_i2s_init_msp(struct platform_device *pdev, struct ux500_msp **msp_p, struct msp_i2s_platform_data *platform_data) { - int ret = 0; struct resource *res = NULL; struct i2s_controller *i2s_cont; struct ux500_msp *msp; @@ -685,15 +684,14 @@ int ux500_msp_i2s_init_msp(struct platform_device *pdev, if (res == NULL) { dev_err(&pdev->dev, "%s: ERROR: Unable to get resource!\n", __func__); - ret = -ENOMEM; - goto err_res; + return -ENOMEM; } - msp->registers = ioremap(res->start, (res->end - res->start + 1)); + msp->registers = devm_ioremap(&pdev->dev, res->start, + resource_size(res)); if (msp->registers == NULL) { dev_err(&pdev->dev, "%s: ERROR: ioremap failed!\n", __func__); - ret = -ENOMEM; - goto err_res; + return -ENOMEM; } msp->msp_state = MSP_STATE_IDLE; @@ -705,7 +703,7 @@ int ux500_msp_i2s_init_msp(struct platform_device *pdev, dev_err(&pdev->dev, "%s: ERROR: Failed to allocate I2S-controller!\n", __func__); - goto err_i2s_cont; + return -ENOMEM; } i2s_cont->dev.parent = &pdev->dev; i2s_cont->data = (void *)msp; @@ -716,14 +714,6 @@ int ux500_msp_i2s_init_msp(struct platform_device *pdev, msp->i2s_cont = i2s_cont; return 0; - -err_i2s_cont: - iounmap(msp->registers); - -err_res: - devm_kfree(&pdev->dev, msp); - - return ret; } void ux500_msp_i2s_cleanup_msp(struct platform_device *pdev, @@ -732,11 +722,6 @@ void ux500_msp_i2s_cleanup_msp(struct platform_device *pdev, dev_dbg(msp->dev, "%s: Enter (id = %d).\n", __func__, msp->id); device_unregister(&msp->i2s_cont->dev); - devm_kfree(&pdev->dev, msp->i2s_cont); - - iounmap(msp->registers); - - devm_kfree(&pdev->dev, msp); } MODULE_LICENSE("GPL v2"); -- cgit v1.2.1 From bc72d26bdb23c908ad52ec2d321a137d27762f08 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Sun, 19 Aug 2012 09:03:00 +0200 Subject: ASoC: am3517evm: fix error return code It was forgotten to initialize ret to the result of calling snd_soc_dai_set_sysclk, unlike at the other calls in the same function. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // ( if@p1 (\(ret < 0\|ret != 0\)) { ... return ret; } | ret@p1 = 0 ) ... when != ret = e1 when != &ret *if(...) { ... when != ret = e2 when forall return ret; } // Signed-off-by: Julia Lawall Acked-by: Jarkko Nikula Signed-off-by: Mark Brown --- sound/soc/omap/am3517evm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/omap/am3517evm.c b/sound/soc/omap/am3517evm.c index 009533ab8d18..df65f98211ec 100644 --- a/sound/soc/omap/am3517evm.c +++ b/sound/soc/omap/am3517evm.c @@ -59,7 +59,7 @@ static int am3517evm_hw_params(struct snd_pcm_substream *substream, return ret; } - snd_soc_dai_set_sysclk(cpu_dai, OMAP_MCBSP_FSR_SRC_FSX, 0, + ret = snd_soc_dai_set_sysclk(cpu_dai, OMAP_MCBSP_FSR_SRC_FSX, 0, SND_SOC_CLOCK_IN); if (ret < 0) { printk(KERN_ERR "can't set CPU system clock OMAP_MCBSP_FSR_SRC_FSX\n"); -- cgit v1.2.1 From 92c385f46b30f4954e9dd2d2005c12d233b479ea Mon Sep 17 00:00:00 2001 From: Gustavo Padovan Date: Mon, 6 Aug 2012 15:36:49 -0300 Subject: Bluetooth: Use USB_VENDOR_AND_INTERFACE() for Broadcom devices Many Broadcom devices has a vendor specific devices class, with this rule we match all existent and future controllers with this behavior. We also remove old rules to that matches product id for Broadcom devices. Tested-by: John Hommel Signed-off-by: Gustavo Padovan --- drivers/bluetooth/btusb.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index 2fe7776dc49c..e791b20beaf5 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -94,16 +94,14 @@ static struct usb_device_id btusb_table[] = { /* Broadcom BCM20702A0 */ { USB_DEVICE(0x0489, 0xe042) }, - { USB_DEVICE(0x0a5c, 0x21e3) }, - { USB_DEVICE(0x0a5c, 0x21e6) }, - { USB_DEVICE(0x0a5c, 0x21e8) }, - { USB_DEVICE(0x0a5c, 0x21f3) }, - { USB_DEVICE(0x0a5c, 0x21f4) }, { USB_DEVICE(0x413c, 0x8197) }, /* Foxconn - Hon Hai */ { USB_DEVICE(0x0489, 0xe033) }, + /*Broadcom devices with vendor specific id */ + { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01) }, + { } /* Terminating entry */ }; -- cgit v1.2.1 From 338b131a3269881c7431234855c93c219b0979b6 Mon Sep 17 00:00:00 2001 From: "sreekanth.reddy@lsi.com" Date: Tue, 17 Jul 2012 15:57:05 +0530 Subject: [SCSI] mpt2sas: Fix for Driver oops, when loading driver with max_queue_depth command line option to a very small value If the specified max_queue_depth setting is less than the expected number of internal commands, then driver will calculate the queue depth size to a negitive number. This negitive number is actually a very large number because variable is unsigned 16bit integer. So, the driver will ask for a very large amount of memory for message frames and resulting into oops as memory allocation routines will not able to handle such a large request. So, in order to limit this kind of oops, The driver need to set the max_queue_depth to a scsi mid layer's can_queue value. Then the overall message frames required for IO is minimum of either (max_queue_depth plus internal commands) or the IOC global credits. Signed-off-by: Sreekanth Reddy Cc: Signed-off-by: James Bottomley --- drivers/scsi/mpt2sas/mpt2sas_base.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) diff --git a/drivers/scsi/mpt2sas/mpt2sas_base.c b/drivers/scsi/mpt2sas/mpt2sas_base.c index 9d46fcbe7755..b25757d1e91b 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_base.c +++ b/drivers/scsi/mpt2sas/mpt2sas_base.c @@ -2424,10 +2424,13 @@ _base_allocate_memory_pools(struct MPT2SAS_ADAPTER *ioc, int sleep_flag) } /* command line tunables for max controller queue depth */ - if (max_queue_depth != -1) - max_request_credit = (max_queue_depth < facts->RequestCredit) - ? max_queue_depth : facts->RequestCredit; - else + if (max_queue_depth != -1 && max_queue_depth != 0) { + max_request_credit = min_t(u16, max_queue_depth + + ioc->hi_priority_depth + ioc->internal_depth, + facts->RequestCredit); + if (max_request_credit > MAX_HBA_QUEUE_DEPTH) + max_request_credit = MAX_HBA_QUEUE_DEPTH; + } else max_request_credit = min_t(u16, facts->RequestCredit, MAX_HBA_QUEUE_DEPTH); @@ -2502,7 +2505,7 @@ _base_allocate_memory_pools(struct MPT2SAS_ADAPTER *ioc, int sleep_flag) /* set the scsi host can_queue depth * with some internal commands that could be outstanding */ - ioc->shost->can_queue = ioc->scsiio_depth - (2); + ioc->shost->can_queue = ioc->scsiio_depth; dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "scsi host: " "can_queue depth (%d)\n", ioc->name, ioc->shost->can_queue)); -- cgit v1.2.1 From bd8d6dd43a77bfd2b8fef5b094b9d6095e169dee Mon Sep 17 00:00:00 2001 From: Kashyap Desai Date: Tue, 17 Jul 2012 18:20:44 -0700 Subject: [SCSI] megaraid_sas: Move poll_aen_lock initializer The following patch moves the poll_aen_lock initializer from megasas_probe_one() to megasas_init(). This prevents a crash when a user loads the driver and tries to issue a poll() system call on the ioctl interface with no adapters present. Signed-off-by: Kashyap Desai Signed-off-by: Adam Radford Cc: Signed-off-by: James Bottomley --- drivers/scsi/megaraid/megaraid_sas_base.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c index dc27598785e5..ed38454228c6 100644 --- a/drivers/scsi/megaraid/megaraid_sas_base.c +++ b/drivers/scsi/megaraid/megaraid_sas_base.c @@ -4066,7 +4066,6 @@ megasas_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) spin_lock_init(&instance->cmd_pool_lock); spin_lock_init(&instance->hba_lock); spin_lock_init(&instance->completion_lock); - spin_lock_init(&poll_aen_lock); mutex_init(&instance->aen_mutex); mutex_init(&instance->reset_mutex); @@ -5392,6 +5391,8 @@ static int __init megasas_init(void) printk(KERN_INFO "megasas: %s %s\n", MEGASAS_VERSION, MEGASAS_EXT_VERSION); + spin_lock_init(&poll_aen_lock); + support_poll_for_event = 2; support_device_change = 1; -- cgit v1.2.1 From 27c419739b67decced4650440829b8d51bef954b Mon Sep 17 00:00:00 2001 From: Mike Snitzer Date: Thu, 31 May 2012 15:05:33 -0400 Subject: [SCSI] scsi_lib: fix scsi_io_completion's SG_IO error propagation The following v3.4-rc1 commit unmasked an existing bug in scsi_io_completion's SG_IO error handling: 47ac56d [SCSI] scsi_error: classify some ILLEGAL_REQUEST sense as a permanent TARGET_ERROR Given that certain ILLEGAL_REQUEST are now properly categorized as TARGET_ERROR the host_byte is being set (before host_byte wasn't ever set for these ILLEGAL_REQUEST). In scsi_io_completion, initialize req->errors with cmd->result _after_ the SG_IO block that calls __scsi_error_from_host_byte (which may modify the host_byte). Before this fix: cdb to send: 12 01 01 00 00 00 ioctl(3, SG_IO, {'S', SG_DXFER_NONE, cmd[6]=[12, 01, 01, 00, 00, 00], mx_sb_len=32, iovec_count=0, dxfer_len=0, timeout=20000, flags=0, status=02, masked_status=01, sb[19]=[70, 00, 05, 00, 00, 00, 00, 0b, 00, 00, 00, 00, 24, 00, 00, 00, 00, 00, 00], host_status=0x10, driver_status=0x8, resid=0, duration=0, info=0x1}) = 0 SCSI Status: Check Condition Sense Information: sense buffer empty After: cdb to send: 12 01 01 00 00 00 ioctl(3, SG_IO, {'S', SG_DXFER_NONE, cmd[6]=[12, 01, 01, 00, 00, 00], mx_sb_len=32, iovec_count=0, dxfer_len=0, timeout=20000, flags=0, status=02, masked_status=01, sb[19]=[70, 00, 05, 00, 00, 00, 00, 0b, 00, 00, 00, 00, 24, 00, 00, 00, 00, 00, 00], host_status=0, driver_status=0x8, resid=0, duration=0, info=0x1}) = 0 SCSI Status: Check Condition Sense Information: Fixed format, current; Sense key: Illegal Request Additional sense: Invalid field in cdb Raw sense data (in hex): 70 00 05 00 00 00 00 0b 00 00 00 00 24 00 00 00 00 00 00 Reported-by: Paolo Bonzini Tested-by: Paolo Bonzini Signed-off-by: Mike Snitzer Reviewed-by: Babu Moger Cc: stable@vger.kernel.org # 3.4 Signed-off-by: James Bottomley --- drivers/scsi/scsi_lib.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index ffd77739ae3e..faa790fba134 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -776,7 +776,6 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes) } if (req->cmd_type == REQ_TYPE_BLOCK_PC) { /* SG_IO ioctl from block level */ - req->errors = result; if (result) { if (sense_valid && req->sense) { /* @@ -792,6 +791,10 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes) if (!sense_deferred) error = __scsi_error_from_host_byte(cmd, result); } + /* + * __scsi_error_from_host_byte may have reset the host_byte + */ + req->errors = cmd->result; req->resid_len = scsi_get_resid(cmd); -- cgit v1.2.1 From 14216561e164671ce147458653b1fea06a4ada1e Mon Sep 17 00:00:00 2001 From: James Bottomley Date: Wed, 25 Jul 2012 23:55:55 +0400 Subject: [SCSI] Fix 'Device not ready' issue on mpt2sas This is a particularly nasty SCSI ATA Translation Layer (SATL) problem. SAT-2 says (section 8.12.2) if the device is in the stopped state as the result of processing a START STOP UNIT command (see 9.11), then the SATL shall terminate the TEST UNIT READY command with CHECK CONDITION status with the sense key set to NOT READY and the additional sense code of LOGICAL UNIT NOT READY, INITIALIZING COMMAND REQUIRED; mpt2sas internal SATL seems to implement this. The result is very confusing standby behaviour (using hdparm -y). If you suspend a drive and then send another command, usually it wakes up. However, if the next command is a TEST UNIT READY, the SATL sees that the drive is suspended and proceeds to follow the SATL rules for this, returning NOT READY to all subsequent commands. This means that the ordering of TEST UNIT READY is crucial: if you send TUR and then a command, you get a NOT READY to both back. If you send a command and then a TUR, you get GOOD status because the preceeding command woke the drive. This bit us badly because commit 85ef06d1d252f6a2e73b678591ab71caad4667bb Author: Tejun Heo Date: Fri Jul 1 16:17:47 2011 +0200 block: flush MEDIA_CHANGE from drivers on close(2) Changed our ordering on TEST UNIT READY commands meaning that SATA drives connected to an mpt2sas now suspend and refuse to wake (because the mpt2sas SATL sees the suspend *before* the drives get awoken by the next ATA command) resulting in lots of failed commands. The standard is completely nuts forcing this inconsistent behaviour, but we have to work around it. The fix for this is twofold: 1. Set the allow_restart flag so we wake the drive when we see it has been suspended 2. Return all TEST UNIT READY status directly to the mid layer without any further error handling which prevents us causing error handling which may offline the device just because of a media check TUR. Reported-by: Matthias Prager Cc: stable@vger.kernel.org Signed-off-by: James Bottomley --- drivers/scsi/scsi_error.c | 10 ++++++++++ drivers/scsi/scsi_scan.c | 10 ++++++++++ 2 files changed, 20 insertions(+) diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index 4a6381c87253..de2337f255a7 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -42,6 +42,8 @@ #include +static void scsi_eh_done(struct scsi_cmnd *scmd); + #define SENSE_TIMEOUT (10*HZ) /* @@ -241,6 +243,14 @@ static int scsi_check_sense(struct scsi_cmnd *scmd) if (! scsi_command_normalize_sense(scmd, &sshdr)) return FAILED; /* no valid sense data */ + if (scmd->cmnd[0] == TEST_UNIT_READY && scmd->scsi_done != scsi_eh_done) + /* + * nasty: for mid-layer issued TURs, we need to return the + * actual sense data without any recovery attempt. For eh + * issued ones, we need to try to recover and interpret + */ + return SUCCESS; + if (scsi_sense_is_deferred(&sshdr)) return NEEDS_RETRY; diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c index 56a93794c470..d947ffc20ceb 100644 --- a/drivers/scsi/scsi_scan.c +++ b/drivers/scsi/scsi_scan.c @@ -764,6 +764,16 @@ static int scsi_add_lun(struct scsi_device *sdev, unsigned char *inq_result, sdev->model = (char *) (sdev->inquiry + 16); sdev->rev = (char *) (sdev->inquiry + 32); + if (strncmp(sdev->vendor, "ATA ", 8) == 0) { + /* + * sata emulation layer device. This is a hack to work around + * the SATL power management specifications which state that + * when the SATL detects the device has gone into standby + * mode, it shall respond with NOT READY. + */ + sdev->allow_restart = 1; + } + if (*bflags & BLIST_ISROM) { sdev->type = TYPE_ROM; sdev->removable = 1; -- cgit v1.2.1 From 1922b0f2758badc0b971d1ebbd300bc6635a6aef Mon Sep 17 00:00:00 2001 From: AnilKumar Ch Date: Mon, 13 Aug 2012 20:36:05 +0530 Subject: mfd: Move tps65217 regulator plat data handling to regulator Regulator platform data handling was mistakenly added to MFD driver. So we will see build errors if we compile MFD drivers without CONFIG_REGULATOR. This patch moves regulator platform data handling from TPS65217 MFD driver to regulator driver. This makes MFD driver independent of REGULATOR framework so build error is fixed if CONFIG_REGULATOR is not set. drivers/built-in.o: In function `tps65217_probe': tps65217.c:(.devinit.text+0x13e37): undefined reference to `of_regulator_match' This patch also fix allocation size of tps65217 platform data. Current implementation allocates a struct tps65217_board for each regulator specified in the device tree. But the structure itself provides array of regulators so one instance of it is sufficient. Signed-off-by: AnilKumar Ch --- drivers/mfd/tps65217.c | 130 +++++++++++---------------------- drivers/regulator/tps65217-regulator.c | 124 +++++++++++++++++++++++++++---- include/linux/mfd/tps65217.h | 12 ++- 3 files changed, 161 insertions(+), 105 deletions(-) diff --git a/drivers/mfd/tps65217.c b/drivers/mfd/tps65217.c index 61c097a98f5d..3bc274409b58 100644 --- a/drivers/mfd/tps65217.c +++ b/drivers/mfd/tps65217.c @@ -24,11 +24,18 @@ #include #include #include -#include +#include +#include #include #include +static struct mfd_cell tps65217s[] = { + { + .name = "tps65217-pmic", + }, +}; + /** * tps65217_reg_read: Read a single tps65217 register. * @@ -133,83 +140,48 @@ int tps65217_clear_bits(struct tps65217 *tps, unsigned int reg, } EXPORT_SYMBOL_GPL(tps65217_clear_bits); -#ifdef CONFIG_OF -static struct of_regulator_match reg_matches[] = { - { .name = "dcdc1", .driver_data = (void *)TPS65217_DCDC_1 }, - { .name = "dcdc2", .driver_data = (void *)TPS65217_DCDC_2 }, - { .name = "dcdc3", .driver_data = (void *)TPS65217_DCDC_3 }, - { .name = "ldo1", .driver_data = (void *)TPS65217_LDO_1 }, - { .name = "ldo2", .driver_data = (void *)TPS65217_LDO_2 }, - { .name = "ldo3", .driver_data = (void *)TPS65217_LDO_3 }, - { .name = "ldo4", .driver_data = (void *)TPS65217_LDO_4 }, -}; - -static struct tps65217_board *tps65217_parse_dt(struct i2c_client *client) -{ - struct device_node *node = client->dev.of_node; - struct tps65217_board *pdata; - struct device_node *regs; - int count = ARRAY_SIZE(reg_matches); - int ret, i; - - regs = of_find_node_by_name(node, "regulators"); - if (!regs) - return NULL; - - ret = of_regulator_match(&client->dev, regs, reg_matches, count); - of_node_put(regs); - if ((ret < 0) || (ret > count)) - return NULL; - - count = ret; - pdata = devm_kzalloc(&client->dev, count * sizeof(*pdata), GFP_KERNEL); - if (!pdata) - return NULL; - - for (i = 0; i < count; i++) { - if (!reg_matches[i].init_data || !reg_matches[i].of_node) - continue; - - pdata->tps65217_init_data[i] = reg_matches[i].init_data; - pdata->of_node[i] = reg_matches[i].of_node; - } - - return pdata; -} - -static struct of_device_id tps65217_of_match[] = { - { .compatible = "ti,tps65217", }, - { }, -}; -#else -static struct tps65217_board *tps65217_parse_dt(struct i2c_client *client) -{ - return NULL; -} -#endif - static struct regmap_config tps65217_regmap_config = { .reg_bits = 8, .val_bits = 8, }; +static const struct of_device_id tps65217_of_match[] = { + { .compatible = "ti,tps65217", .data = (void *)TPS65217 }, + { /* sentinel */ }, +}; + static int __devinit tps65217_probe(struct i2c_client *client, const struct i2c_device_id *ids) { struct tps65217 *tps; - struct regulator_init_data *reg_data; - struct tps65217_board *pdata = client->dev.platform_data; - int i, ret; unsigned int version; + unsigned int chip_id = ids->driver_data; + const struct of_device_id *match; + int ret; - if (!pdata && client->dev.of_node) - pdata = tps65217_parse_dt(client); + if (client->dev.of_node) { + match = of_match_device(tps65217_of_match, &client->dev); + if (!match) { + dev_err(&client->dev, + "Failed to find matching dt id\n"); + return -EINVAL; + } + chip_id = (unsigned int)match->data; + } + + if (!chip_id) { + dev_err(&client->dev, "id is null.\n"); + return -ENODEV; + } tps = devm_kzalloc(&client->dev, sizeof(*tps), GFP_KERNEL); if (!tps) return -ENOMEM; - tps->pdata = pdata; + i2c_set_clientdata(client, tps); + tps->dev = &client->dev; + tps->id = chip_id; + tps->regmap = devm_regmap_init_i2c(client, &tps65217_regmap_config); if (IS_ERR(tps->regmap)) { ret = PTR_ERR(tps->regmap); @@ -218,8 +190,12 @@ static int __devinit tps65217_probe(struct i2c_client *client, return ret; } - i2c_set_clientdata(client, tps); - tps->dev = &client->dev; + ret = mfd_add_devices(tps->dev, -1, tps65217s, + ARRAY_SIZE(tps65217s), NULL, 0); + if (ret < 0) { + dev_err(tps->dev, "mfd_add_devices failed: %d\n", ret); + return ret; + } ret = tps65217_reg_read(tps, TPS65217_REG_CHIPID, &version); if (ret < 0) { @@ -232,41 +208,21 @@ static int __devinit tps65217_probe(struct i2c_client *client, (version & TPS65217_CHIPID_CHIP_MASK) >> 4, version & TPS65217_CHIPID_REV_MASK); - for (i = 0; i < TPS65217_NUM_REGULATOR; i++) { - struct platform_device *pdev; - - pdev = platform_device_alloc("tps65217-pmic", i); - if (!pdev) { - dev_err(tps->dev, "Cannot create regulator %d\n", i); - continue; - } - - pdev->dev.parent = tps->dev; - pdev->dev.of_node = pdata->of_node[i]; - reg_data = pdata->tps65217_init_data[i]; - platform_device_add_data(pdev, reg_data, sizeof(*reg_data)); - tps->regulator_pdev[i] = pdev; - - platform_device_add(pdev); - } - return 0; } static int __devexit tps65217_remove(struct i2c_client *client) { struct tps65217 *tps = i2c_get_clientdata(client); - int i; - for (i = 0; i < TPS65217_NUM_REGULATOR; i++) - platform_device_unregister(tps->regulator_pdev[i]); + mfd_remove_devices(tps->dev); return 0; } static const struct i2c_device_id tps65217_id_table[] = { - {"tps65217", 0xF0}, - {/* end of list */} + {"tps65217", TPS65217}, + { /* sentinel */ } }; MODULE_DEVICE_TABLE(i2c, tps65217_id_table); diff --git a/drivers/regulator/tps65217-regulator.c b/drivers/regulator/tps65217-regulator.c index 6caa222af77a..ab00cab905b7 100644 --- a/drivers/regulator/tps65217-regulator.c +++ b/drivers/regulator/tps65217-regulator.c @@ -22,6 +22,7 @@ #include #include +#include #include #include #include @@ -281,37 +282,130 @@ static const struct regulator_desc regulators[] = { NULL), }; +#ifdef CONFIG_OF +static struct of_regulator_match reg_matches[] = { + { .name = "dcdc1", .driver_data = (void *)TPS65217_DCDC_1 }, + { .name = "dcdc2", .driver_data = (void *)TPS65217_DCDC_2 }, + { .name = "dcdc3", .driver_data = (void *)TPS65217_DCDC_3 }, + { .name = "ldo1", .driver_data = (void *)TPS65217_LDO_1 }, + { .name = "ldo2", .driver_data = (void *)TPS65217_LDO_2 }, + { .name = "ldo3", .driver_data = (void *)TPS65217_LDO_3 }, + { .name = "ldo4", .driver_data = (void *)TPS65217_LDO_4 }, +}; + +static struct tps65217_board *tps65217_parse_dt(struct platform_device *pdev) +{ + struct tps65217 *tps = dev_get_drvdata(pdev->dev.parent); + struct device_node *node = tps->dev->of_node; + struct tps65217_board *pdata; + struct device_node *regs; + int i, count; + + regs = of_find_node_by_name(node, "regulators"); + if (!regs) + return NULL; + + count = of_regulator_match(pdev->dev.parent, regs, + reg_matches, TPS65217_NUM_REGULATOR); + of_node_put(regs); + if ((count < 0) || (count > TPS65217_NUM_REGULATOR)) + return NULL; + + pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) + return NULL; + + for (i = 0; i < count; i++) { + if (!reg_matches[i].init_data || !reg_matches[i].of_node) + continue; + + pdata->tps65217_init_data[i] = reg_matches[i].init_data; + pdata->of_node[i] = reg_matches[i].of_node; + } + + return pdata; +} +#else +static struct tps65217_board *tps65217_parse_dt(struct platform_device *pdev) +{ + return NULL; +} +#endif + static int __devinit tps65217_regulator_probe(struct platform_device *pdev) { + struct tps65217 *tps = dev_get_drvdata(pdev->dev.parent); + struct tps65217_board *pdata = dev_get_platdata(tps->dev); + struct regulator_init_data *reg_data; struct regulator_dev *rdev; - struct tps65217 *tps; - struct tps_info *info = &tps65217_pmic_regs[pdev->id]; struct regulator_config config = { }; + int i, ret; - /* Already set by core driver */ - tps = dev_to_tps65217(pdev->dev.parent); - tps->info[pdev->id] = info; + if (tps->dev->of_node) + pdata = tps65217_parse_dt(pdev); - config.dev = &pdev->dev; - config.of_node = pdev->dev.of_node; - config.init_data = pdev->dev.platform_data; - config.driver_data = tps; + if (!pdata) { + dev_err(&pdev->dev, "Platform data not found\n"); + return -EINVAL; + } - rdev = regulator_register(®ulators[pdev->id], &config); - if (IS_ERR(rdev)) - return PTR_ERR(rdev); + if (tps65217_chip_id(tps) != TPS65217) { + dev_err(&pdev->dev, "Invalid tps chip version\n"); + return -ENODEV; + } - platform_set_drvdata(pdev, rdev); + platform_set_drvdata(pdev, tps); + for (i = 0; i < TPS65217_NUM_REGULATOR; i++) { + + reg_data = pdata->tps65217_init_data[i]; + + /* + * Regulator API handles empty constraints but not NULL + * constraints + */ + if (!reg_data) + continue; + + /* Register the regulators */ + tps->info[i] = &tps65217_pmic_regs[i]; + + config.dev = tps->dev; + config.init_data = reg_data; + config.driver_data = tps; + config.regmap = tps->regmap; + if (tps->dev->of_node) + config.of_node = pdata->of_node[i]; + + rdev = regulator_register(®ulators[i], &config); + if (IS_ERR(rdev)) { + dev_err(tps->dev, "failed to register %s regulator\n", + pdev->name); + ret = PTR_ERR(rdev); + goto err_unregister_regulator; + } + + /* Save regulator for cleanup */ + tps->rdev[i] = rdev; + } return 0; + +err_unregister_regulator: + while (--i >= 0) + regulator_unregister(tps->rdev[i]); + + return ret; } static int __devexit tps65217_regulator_remove(struct platform_device *pdev) { - struct regulator_dev *rdev = platform_get_drvdata(pdev); + struct tps65217 *tps = platform_get_drvdata(pdev); + unsigned int i; + + for (i = 0; i < TPS65217_NUM_REGULATOR; i++) + regulator_unregister(tps->rdev[i]); platform_set_drvdata(pdev, NULL); - regulator_unregister(rdev); return 0; } diff --git a/include/linux/mfd/tps65217.h b/include/linux/mfd/tps65217.h index 12c06870829a..7cd83d826ed8 100644 --- a/include/linux/mfd/tps65217.h +++ b/include/linux/mfd/tps65217.h @@ -22,6 +22,9 @@ #include #include +/* TPS chip id list */ +#define TPS65217 0xF0 + /* I2C ID for TPS65217 part */ #define TPS65217_I2C_ID 0x24 @@ -248,13 +251,11 @@ struct tps_info { struct tps65217 { struct device *dev; struct tps65217_board *pdata; + unsigned int id; struct regulator_desc desc[TPS65217_NUM_REGULATOR]; struct regulator_dev *rdev[TPS65217_NUM_REGULATOR]; struct tps_info *info[TPS65217_NUM_REGULATOR]; struct regmap *regmap; - - /* Client devices */ - struct platform_device *regulator_pdev[TPS65217_NUM_REGULATOR]; }; static inline struct tps65217 *dev_to_tps65217(struct device *dev) @@ -262,6 +263,11 @@ static inline struct tps65217 *dev_to_tps65217(struct device *dev) return dev_get_drvdata(dev); } +static inline int tps65217_chip_id(struct tps65217 *tps65217) +{ + return tps65217->id; +} + int tps65217_reg_read(struct tps65217 *tps, unsigned int reg, unsigned int *val); int tps65217_reg_write(struct tps65217 *tps, unsigned int reg, -- cgit v1.2.1 From a0e35322910555e20e9eced3f050a76c7b3a1f92 Mon Sep 17 00:00:00 2001 From: Feng Tang Date: Thu, 16 Aug 2012 15:50:10 +0800 Subject: mfd: lpc_ich: Fix a 3.5 kernel regression for iTCO_wdt driver There are many reports (including 2 of my machines) that iTCO_wdt watchdog driver fails to be initialized in 3.5 kernel with error message like: [ 5.265175] ACPI Warning: 0x00001060-0x0000107f SystemIO conflicts with Region \_SB_.PCI0.LPCB.TCOI 1 (20120320/utaddress-251) [ 5.265192] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver [ 5.265206] lpc_ich: Resource conflict(s) found affecting iTCO_wdt The root cause the iTCO_wdt driver in 3.4 probes the HW IO resource from LPC's PCI config space, while in 3.5 kernel it relies on lpc_ich driver for the probe, which adds a new acpi_check_resource_conflict() check, and give up the probe if there is any conflict with ACPI. Fix it by removing all the checks for iTCO_wdt to keep the same behavior as 3.4 kernel. https://bugzilla.kernel.org/show_bug.cgi?id=44991 Actually the same check could be removed for the gpio-ich in lpc_ich.c, but I'm not sure if it will cause problems. Signed-off-by: Feng Tang Cc: Aaron Sierra Cc: Wim Van Sebroeck Cc: Len Brown Cc: Bob Moore Signed-off-by: Samuel Ortiz --- drivers/mfd/lpc_ich.c | 20 +------------------- 1 file changed, 1 insertion(+), 19 deletions(-) diff --git a/drivers/mfd/lpc_ich.c b/drivers/mfd/lpc_ich.c index 027cc8f86132..a05fdfc2ebcf 100644 --- a/drivers/mfd/lpc_ich.c +++ b/drivers/mfd/lpc_ich.c @@ -765,7 +765,6 @@ static int __devinit lpc_ich_init_wdt(struct pci_dev *dev, u32 base_addr_cfg; u32 base_addr; int ret; - bool acpi_conflict = false; struct resource *res; /* Setup power management base register */ @@ -780,20 +779,11 @@ static int __devinit lpc_ich_init_wdt(struct pci_dev *dev, res = wdt_io_res(ICH_RES_IO_TCO); res->start = base_addr + ACPIBASE_TCO_OFF; res->end = base_addr + ACPIBASE_TCO_END; - ret = acpi_check_resource_conflict(res); - if (ret) { - acpi_conflict = true; - goto wdt_done; - } res = wdt_io_res(ICH_RES_IO_SMI); res->start = base_addr + ACPIBASE_SMI_OFF; res->end = base_addr + ACPIBASE_SMI_END; - ret = acpi_check_resource_conflict(res); - if (ret) { - acpi_conflict = true; - goto wdt_done; - } + lpc_ich_enable_acpi_space(dev); /* @@ -813,11 +803,6 @@ static int __devinit lpc_ich_init_wdt(struct pci_dev *dev, res = wdt_mem_res(ICH_RES_MEM_GCS); res->start = base_addr + ACPIBASE_GCS_OFF; res->end = base_addr + ACPIBASE_GCS_END; - ret = acpi_check_resource_conflict(res); - if (ret) { - acpi_conflict = true; - goto wdt_done; - } } lpc_ich_finalize_cell(&lpc_ich_cells[LPC_WDT], id); @@ -825,9 +810,6 @@ static int __devinit lpc_ich_init_wdt(struct pci_dev *dev, 1, NULL, 0); wdt_done: - if (acpi_conflict) - pr_warn("Resource conflict(s) found affecting %s\n", - lpc_ich_cells[LPC_WDT].name); return ret; } -- cgit v1.2.1 From 4c054ba63ad47ef244cfcfa1cea38134620a5bae Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger Date: Thu, 16 Aug 2012 15:33:10 -0700 Subject: target: Fix ->data_length re-assignment bug with SCSI overflow This patch fixes a long-standing bug with SCSI overflow handling where se_cmd->data_length was incorrectly being re-assigned to the larger CDB extracted allocation length, resulting in a number of fabric level errors that would end up causing a session reset in most cases. So instead now: - Only re-assign se_cmd->data_length durining UNDERFLOW (to use the smaller value) - Use existing se_cmd->data_length for OVERFLOW (to use the smaller value) This fix has been tested with the following CDB to generate an SCSI overflow: sg_raw -r512 /dev/sdc 28 0 0 0 0 0 0 0 9 0 Tested using iscsi-target, tcm_qla2xxx, loopback and tcm_vhost fabric ports. Here is a bit more detail on each case: - iscsi-target: Bug with open-iscsi with overflow, sg_raw returns -3584 bytes of data. - tcm_qla2xxx: Working as expected, returnins 512 bytes of data - loopback: sg_raw returns CHECK_CONDITION, from overflow rejection in transport_generic_map_mem_to_cmd() - tcm_vhost: Same as loopback Reported-by: Roland Dreier Cc: Roland Dreier Cc: Christoph Hellwig Cc: Boaz Harrosh Cc: Signed-off-by: Nicholas Bellinger --- drivers/target/target_core_transport.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index 4de3186dc44e..3425098ef728 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -1181,15 +1181,20 @@ int target_cmd_size_check(struct se_cmd *cmd, unsigned int size) /* Returns CHECK_CONDITION + INVALID_CDB_FIELD */ goto out_invalid_cdb_field; } - + /* + * For the overflow case keep the existing fabric provided + * ->data_length. Otherwise for the underflow case, reset + * ->data_length to the smaller SCSI expected data transfer + * length. + */ if (size > cmd->data_length) { cmd->se_cmd_flags |= SCF_OVERFLOW_BIT; cmd->residual_count = (size - cmd->data_length); } else { cmd->se_cmd_flags |= SCF_UNDERFLOW_BIT; cmd->residual_count = (cmd->data_length - size); + cmd->data_length = size; } - cmd->data_length = size; } return 0; -- cgit v1.2.1 From bf8801145c01ab600f8df66e8c879ac642fa5846 Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Thu, 16 Aug 2012 18:55:44 +0100 Subject: ARM: 7496/1: hw_breakpoint: don't rely on dfsr to show watchpoint access type From ARM debug architecture v7.1 onwards, a watchpoint exception causes the DFAR to be updated with the faulting data address. However, DFSR.WnR takes an UNKNOWN value and therefore cannot be used in general to determine the access type that triggered the watchpoint. This patch forbids watchpoints without an overflow handler from specifying a specific access type (load/store). Those with overflow handlers must be able to handle false positives potentially triggered by a watchpoint of a different access type on the same address. For SIGTRAP-based handlers (i.e. ptrace), this should have no impact. Cc: Signed-off-by: Will Deacon Signed-off-by: Russell King --- arch/arm/kernel/hw_breakpoint.c | 55 ++++++++++++++++++++++++++++++----------- 1 file changed, 40 insertions(+), 15 deletions(-) diff --git a/arch/arm/kernel/hw_breakpoint.c b/arch/arm/kernel/hw_breakpoint.c index ba386bd94107..18d39ea4c02f 100644 --- a/arch/arm/kernel/hw_breakpoint.c +++ b/arch/arm/kernel/hw_breakpoint.c @@ -159,6 +159,12 @@ static int debug_arch_supported(void) arch >= ARM_DEBUG_ARCH_V7_1; } +/* Can we determine the watchpoint access type from the fsr? */ +static int debug_exception_updates_fsr(void) +{ + return 0; +} + /* Determine number of WRP registers available. */ static int get_num_wrp_resources(void) { @@ -619,18 +625,35 @@ int arch_validate_hwbkpt_settings(struct perf_event *bp) info->address &= ~alignment_mask; info->ctrl.len <<= offset; - /* - * Currently we rely on an overflow handler to take - * care of single-stepping the breakpoint when it fires. - * In the case of userspace breakpoints on a core with V7 debug, - * we can use the mismatch feature as a poor-man's hardware - * single-step, but this only works for per-task breakpoints. - */ - if (!bp->overflow_handler && (arch_check_bp_in_kernelspace(bp) || - !core_has_mismatch_brps() || !bp->hw.bp_target)) { - pr_warning("overflow handler required but none found\n"); - ret = -EINVAL; + if (!bp->overflow_handler) { + /* + * Mismatch breakpoints are required for single-stepping + * breakpoints. + */ + if (!core_has_mismatch_brps()) + return -EINVAL; + + /* We don't allow mismatch breakpoints in kernel space. */ + if (arch_check_bp_in_kernelspace(bp)) + return -EPERM; + + /* + * Per-cpu breakpoints are not supported by our stepping + * mechanism. + */ + if (!bp->hw.bp_target) + return -EINVAL; + + /* + * We only support specific access types if the fsr + * reports them. + */ + if (!debug_exception_updates_fsr() && + (info->ctrl.type == ARM_BREAKPOINT_LOAD || + info->ctrl.type == ARM_BREAKPOINT_STORE)) + return -EINVAL; } + out: return ret; } @@ -706,10 +729,12 @@ static void watchpoint_handler(unsigned long addr, unsigned int fsr, goto unlock; /* Check that the access type matches. */ - access = (fsr & ARM_FSR_ACCESS_MASK) ? HW_BREAKPOINT_W : - HW_BREAKPOINT_R; - if (!(access & hw_breakpoint_type(wp))) - goto unlock; + if (debug_exception_updates_fsr()) { + access = (fsr & ARM_FSR_ACCESS_MASK) ? + HW_BREAKPOINT_W : HW_BREAKPOINT_R; + if (!(access & hw_breakpoint_type(wp))) + goto unlock; + } /* We have a winner. */ info->trigger = addr; -- cgit v1.2.1 From d968d2b801d877601d54e35e6dd0f52d9c797c99 Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Thu, 16 Aug 2012 19:02:12 +0100 Subject: ARM: 7497/1: hw_breakpoint: allow single-byte watchpoints on all addresses Breakpoint validation currently fails for single-byte watchpoints on addresses ending in 11b. There is no reason to forbid such a watchpoint, so extend the validation code to allow it. Cc: Ulrich Weigand Signed-off-by: Will Deacon Signed-off-by: Russell King --- arch/arm/kernel/hw_breakpoint.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/arch/arm/kernel/hw_breakpoint.c b/arch/arm/kernel/hw_breakpoint.c index 18d39ea4c02f..281bf3301241 100644 --- a/arch/arm/kernel/hw_breakpoint.c +++ b/arch/arm/kernel/hw_breakpoint.c @@ -610,13 +610,14 @@ int arch_validate_hwbkpt_settings(struct perf_event *bp) /* Aligned */ break; case 1: - /* Allow single byte watchpoint. */ - if (info->ctrl.len == ARM_BREAKPOINT_LEN_1) - break; case 2: /* Allow halfword watchpoints and breakpoints. */ if (info->ctrl.len == ARM_BREAKPOINT_LEN_2) break; + case 3: + /* Allow single byte watchpoint. */ + if (info->ctrl.len == ARM_BREAKPOINT_LEN_1) + break; default: ret = -EINVAL; goto out; -- cgit v1.2.1 From dbece45894d3ab1baac15a96dc4e1e8e23f64a93 Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Fri, 24 Aug 2012 15:20:59 +0100 Subject: ARM: 7501/1: decompressor: reset ttbcr for VMSA ARMv7 cores When enabling the MMU for ARMv7 CPUs, the decompressor does not touch the ttbcr register, assuming that it will be zeroed (N == 0, EAE == 0). Given that only EAE is defined as 0 for non-secure copies of the register (and a bootloader such as kexec may leave it set to 1 anyway), we should ensure that we reset the register ourselves before turning on the MMU. This patch zeroes TTBCR.EAE and TTBCR.N prior to enabling the MMU for ARMv7 cores in the decompressor, configuring us exclusively for 32-bit translation tables via TTBR0. Cc: Acked-by: Nicolas Pitre Signed-off-by: Matthew Leach Signed-off-by: Will Deacon Signed-off-by: Russell King --- arch/arm/boot/compressed/head.S | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arm/boot/compressed/head.S b/arch/arm/boot/compressed/head.S index b8c64b80bafc..81769c1341fa 100644 --- a/arch/arm/boot/compressed/head.S +++ b/arch/arm/boot/compressed/head.S @@ -659,10 +659,14 @@ __armv7_mmu_cache_on: #ifdef CONFIG_CPU_ENDIAN_BE8 orr r0, r0, #1 << 25 @ big-endian page tables #endif + mrcne p15, 0, r6, c2, c0, 2 @ read ttb control reg orrne r0, r0, #1 @ MMU enabled movne r1, #0xfffffffd @ domain 0 = client + bic r6, r6, #1 << 31 @ 32-bit translation system + bic r6, r6, #3 << 0 @ use only ttbr0 mcrne p15, 0, r3, c2, c0, 0 @ load page table pointer mcrne p15, 0, r1, c3, c0, 0 @ load domain access control + mcrne p15, 0, r6, c2, c0, 2 @ load ttb control #endif mcr p15, 0, r0, c7, c5, 4 @ ISB mcr p15, 0, r0, c1, c0, 0 @ load control register -- cgit v1.2.1 From ae3790b8a916429be5fa61da95992929e6b34d64 Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Fri, 24 Aug 2012 15:21:52 +0100 Subject: ARM: 7502/1: contextidr: avoid using bfi instruction during notifier The bfi instruction is not available on ARMv6, so instead use an and/orr sequence in the contextidr_notifier. This gets rid of the assembler error: Assembler messages: Error: selected processor does not support ARM mode `bfi r3,r2,#0,#8' Reported-by: Arnd Bergmann Signed-off-by: Will Deacon Signed-off-by: Russell King --- arch/arm/mm/context.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/arch/arm/mm/context.c b/arch/arm/mm/context.c index 119bc52ab93e..4e07eec1270d 100644 --- a/arch/arm/mm/context.c +++ b/arch/arm/mm/context.c @@ -63,10 +63,11 @@ static int contextidr_notifier(struct notifier_block *unused, unsigned long cmd, pid = task_pid_nr(thread->task) << ASID_BITS; asm volatile( " mrc p15, 0, %0, c13, c0, 1\n" - " bfi %1, %0, #0, %2\n" - " mcr p15, 0, %1, c13, c0, 1\n" + " and %0, %0, %2\n" + " orr %0, %0, %1\n" + " mcr p15, 0, %0, c13, c0, 1\n" : "=r" (contextidr), "+r" (pid) - : "I" (ASID_BITS)); + : "I" (~ASID_MASK)); isb(); return NOTIFY_OK; -- cgit v1.2.1 From df547e08e800275a431e560a7f0a6b6f24ab2904 Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Fri, 24 Aug 2012 15:23:06 +0100 Subject: ARM: 7503/1: mm: only flush both pmd entries for classic MMU LPAE does not use two pmd entries for a pte, so the additional tlb flushing is not required. Signed-off-by: Will Deacon Signed-off-by: Russell King --- arch/arm/include/asm/tlb.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arm/include/asm/tlb.h b/arch/arm/include/asm/tlb.h index 314d4664eae7..99a19512ee26 100644 --- a/arch/arm/include/asm/tlb.h +++ b/arch/arm/include/asm/tlb.h @@ -199,6 +199,9 @@ static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t pte, { pgtable_page_dtor(pte); +#ifdef CONFIG_ARM_LPAE + tlb_add_flush(tlb, addr); +#else /* * With the classic ARM MMU, a pte page has two corresponding pmd * entries, each covering 1MB. @@ -206,6 +209,7 @@ static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t pte, addr &= PMD_MASK; tlb_add_flush(tlb, addr + SZ_1M - PAGE_SIZE); tlb_add_flush(tlb, addr + SZ_1M); +#endif tlb_remove_page(tlb, pte); } -- cgit v1.2.1 From 36418c516b31bff4ff949c7c618430a1a514debe Mon Sep 17 00:00:00 2001 From: Jonathan Austin Date: Thu, 23 Aug 2012 14:02:59 +0100 Subject: ARM: 7499/1: mm: Fix vmalloc overlap check for !HIGHMEM With !HIGHMEM, sanity_check_meminfo checks for banks that completely or partially overlap the vmalloc region. The test for partial overlap checks __va(bank->start + bank->size) > vmalloc_min. This is not appropriate if there is a non-linear translation between virtual and physical addresses, as bank->start + bank->size is actually in the bank following the one being interrogated. In most cases, even when using SPARSEMEM, this is not problematic as the subsequent bank will start at a higher va than the one in question. However if the physical to virtual address conversion is not monotonic increasing, the incorrect test could result in a bank not being truncated when it should be. This patch ensures we perform the va-pa conversion on memory from the bank we are interested in, not the following one. Reported-by: ??? (Steve) Signed-off-by: Jonathan Austin Acked-by: Nicolas Pitre Signed-off-by: Russell King --- arch/arm/mm/mmu.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c index eab94bc6f805..c2fa21d0103e 100644 --- a/arch/arm/mm/mmu.c +++ b/arch/arm/mm/mmu.c @@ -961,8 +961,8 @@ void __init sanity_check_meminfo(void) * Check whether this memory bank would partially overlap * the vmalloc area. */ - if (__va(bank->start + bank->size) > vmalloc_min || - __va(bank->start + bank->size) < __va(bank->start)) { + if (__va(bank->start + bank->size - 1) >= vmalloc_min || + __va(bank->start + bank->size - 1) <= __va(bank->start)) { unsigned long newsize = vmalloc_min - __va(bank->start); printk(KERN_NOTICE "Truncating RAM at %.8llx-%.8llx " "to -%.8llx (vmalloc region overlap).\n", -- cgit v1.2.1 From d8c3bb911f5afc32f7276c2e2e89eb58af4306ae Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Thu, 23 Aug 2012 18:10:42 +0100 Subject: ASoC: dapm: Make sure we update the bias level for CODECs with no op Commit 412312 (ASoC: dapm: Make sure all dapm contexts are updated) ensures that we update non-CODEC DAPM contexts but means that if a CODEC has no set_bias_level() operation it'll not be updated. Fix that. Signed-off-by: Mark Brown --- sound/soc/soc-dapm.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index dd7c49fafd75..145ec4b56ca9 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -291,6 +291,8 @@ static int snd_soc_dapm_set_bias_level(struct snd_soc_dapm_context *dapm, if (dapm->codec->driver->set_bias_level) ret = dapm->codec->driver->set_bias_level(dapm->codec, level); + else + dapm->bias_level = level; } else dapm->bias_level = level; -- cgit v1.2.1 From 4e872a46823c64e655d997e1e04a4b32e326aa1b Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Thu, 23 Aug 2012 18:20:49 +0100 Subject: ASoC: dapm: Don't force card bias level to be updated Commit 412312 (ASoC: dapm: Make sure all dapm contexts are updated) means that any DAPM context being updated will have the bias level automatically set, including the card. We can't safely do this as the card callbacks are called for each device context and so the management of the card bias is more complex. Several multi-component cards rely on this behaviour. Skip updates during the asynchronous run entirely. We should really do them in the synchronous section but it's not 100% clear which values to pick as the different DAPM contexts may have different bias levels. Signed-off-by: Mark Brown --- sound/soc/soc-dapm.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index 145ec4b56ca9..f90139b5f50d 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -293,8 +293,9 @@ static int snd_soc_dapm_set_bias_level(struct snd_soc_dapm_context *dapm, level); else dapm->bias_level = level; - } else + } else if (!card || dapm != &card->dapm) { dapm->bias_level = level; + } if (ret != 0) goto out; -- cgit v1.2.1 From 13b5533a38b1eec9d61a07711dc075f03ae47a36 Mon Sep 17 00:00:00 2001 From: Benjamin Wang Date: Sun, 26 Aug 2012 18:04:10 +0800 Subject: target: Check idr_get_new return value in iscsi_login_zero_tsih_s1 This patch updates iscsi_login_zero_tsih_s1() usage for generating iscsi_session->session_index to properly check the return value from idr_get_new(), and reject the iSCSI login attempt with exception status ISCSI_LOGIN_STATUS_NO_RESOURCES in the event of a failure. Signed-off-by: Benjamin Wang Signed-off-by: Nicholas Bellinger --- drivers/target/iscsi/iscsi_target_login.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/drivers/target/iscsi/iscsi_target_login.c b/drivers/target/iscsi/iscsi_target_login.c index 0694d9b1bce6..6aba4395e8d8 100644 --- a/drivers/target/iscsi/iscsi_target_login.c +++ b/drivers/target/iscsi/iscsi_target_login.c @@ -221,6 +221,7 @@ static int iscsi_login_zero_tsih_s1( { struct iscsi_session *sess = NULL; struct iscsi_login_req *pdu = (struct iscsi_login_req *)buf; + int ret; sess = kzalloc(sizeof(struct iscsi_session), GFP_KERNEL); if (!sess) { @@ -257,9 +258,17 @@ static int iscsi_login_zero_tsih_s1( return -ENOMEM; } spin_lock(&sess_idr_lock); - idr_get_new(&sess_idr, NULL, &sess->session_index); + ret = idr_get_new(&sess_idr, NULL, &sess->session_index); spin_unlock(&sess_idr_lock); + if (ret < 0) { + pr_err("idr_get_new() for sess_idr failed\n"); + iscsit_tx_login_rsp(conn, ISCSI_STATUS_CLS_TARGET_ERR, + ISCSI_LOGIN_STATUS_NO_RESOURCES); + kfree(sess); + return -ENOMEM; + } + sess->creation_time = get_jiffies_64(); spin_lock_init(&sess->session_stats_lock); /* -- cgit v1.2.1 From e3e45c01ae690e65f2650e5288b9af802e95a136 Mon Sep 17 00:00:00 2001 From: Stephane Eranian Date: Fri, 24 Aug 2012 15:34:34 +0200 Subject: perf/x86: Fix microcode revision check for SNB-PEBS The following patch makes the microcode update code path actually invoke the perf_check_microcode() function and thus potentially renabling SNB PEBS. By default, CONFIG_MICROCODE_OLD_INTERFACE is forced to Y in arch/x86/Kconfig. There is no way to disable this. That means that the code path used in arch/x86/kernel/microcode_core.c did not include the call to perf_check_microcode(). Thus, even though the microcode was updated to a version that fixes the SNB PEBS problem, perf_event would still return EOPNOTSUPP when enabling precise sampling. This patch simply adds a call to perf_check_microcode() in the call path used when OLD_INTERFACE=y. Signed-off-by: Stephane Eranian Acked-by: Borislav Petkov Cc: peterz@infradead.org Cc: andi@firstfloor.org Link: http://lkml.kernel.org/r/20120824133434.GA8014@quad Signed-off-by: Ingo Molnar --- arch/x86/kernel/microcode_core.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/x86/kernel/microcode_core.c b/arch/x86/kernel/microcode_core.c index 4873e62db6a1..9e5bcf1e2376 100644 --- a/arch/x86/kernel/microcode_core.c +++ b/arch/x86/kernel/microcode_core.c @@ -225,6 +225,9 @@ static ssize_t microcode_write(struct file *file, const char __user *buf, if (do_microcode_update(buf, len) == 0) ret = (ssize_t)len; + if (ret > 0) + perf_check_microcode(); + mutex_unlock(µcode_mutex); put_online_cpus(); -- cgit v1.2.1 From 81ff3478d9ba7f0b48b0abef740e542fd83adf79 Mon Sep 17 00:00:00 2001 From: Robert Richter Date: Thu, 19 Jul 2012 18:28:26 +0200 Subject: oprofile, s390: Fix uninitialized memory access when writing to oprofilefs If oprofilefs_ulong_from_user() is called with count equals zero, *val remains unchanged. Depending on the implementation it might be uninitialized. Fixing users of oprofilefs_ulong_ from_user(). We missed these s390 changes with: 913050b oprofile: Fix uninitialized memory access when writing to writing to oprofilefs Cc: stable@vger.kernel.org # 3.3+ Signed-off-by: Robert Richter --- arch/s390/oprofile/init.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/arch/s390/oprofile/init.c b/arch/s390/oprofile/init.c index a1e9d69a9c90..584b93674ea4 100644 --- a/arch/s390/oprofile/init.c +++ b/arch/s390/oprofile/init.c @@ -169,7 +169,7 @@ static ssize_t hw_interval_write(struct file *file, char const __user *buf, if (*offset) return -EINVAL; retval = oprofilefs_ulong_from_user(&val, buf, count); - if (retval) + if (retval <= 0) return retval; if (val < oprofile_min_interval) oprofile_hw_interval = oprofile_min_interval; @@ -212,7 +212,7 @@ static ssize_t hwsampler_zero_write(struct file *file, char const __user *buf, return -EINVAL; retval = oprofilefs_ulong_from_user(&val, buf, count); - if (retval) + if (retval <= 0) return retval; if (val != 0) return -EINVAL; @@ -243,7 +243,7 @@ static ssize_t hwsampler_kernel_write(struct file *file, char const __user *buf, return -EINVAL; retval = oprofilefs_ulong_from_user(&val, buf, count); - if (retval) + if (retval <= 0) return retval; if (val != 0 && val != 1) @@ -278,7 +278,7 @@ static ssize_t hwsampler_user_write(struct file *file, char const __user *buf, return -EINVAL; retval = oprofilefs_ulong_from_user(&val, buf, count); - if (retval) + if (retval <= 0) return retval; if (val != 0 && val != 1) @@ -317,7 +317,7 @@ static ssize_t timer_enabled_write(struct file *file, char const __user *buf, return -EINVAL; retval = oprofilefs_ulong_from_user(&val, buf, count); - if (retval) + if (retval <= 0) return retval; if (val != 0 && val != 1) -- cgit v1.2.1 From 1fa6535faf055cd71311ab887e94fc234f04ee18 Mon Sep 17 00:00:00 2001 From: Henrik Rydberg Date: Sat, 25 Aug 2012 19:28:06 +0200 Subject: Bluetooth: Add support for Apple vendor-specific devices As pointed out by Gustavo and Marcel, all Apple-specific Broadcom devices seen so far have the same interface class, subclass and protocol numbers. This patch adds an entry which matches all of them, using the new USB_VENDOR_AND_INTERFACE_INFO() macro. In particular, this patch adds support for the MacBook Pro Retina (05ac:8286), which is not in the present list. Signed-off-by: Henrik Rydberg Tested-by: Shea Levy Acked-by: Marcel Holtmann Signed-off-by: Gustavo Padovan --- drivers/bluetooth/btusb.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index e791b20beaf5..654e248763ef 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -52,6 +52,9 @@ static struct usb_device_id btusb_table[] = { /* Generic Bluetooth USB device */ { USB_DEVICE_INFO(0xe0, 0x01, 0x01) }, + /* Apple-specific (Broadcom) devices */ + { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01) }, + /* Broadcom SoftSailing reporting vendor specific */ { USB_DEVICE(0x0a5c, 0x21e1) }, -- cgit v1.2.1 From cc110922da7e902b62d18641a370fec01a9fa794 Mon Sep 17 00:00:00 2001 From: Vinicius Costa Gomes Date: Thu, 23 Aug 2012 21:32:43 -0300 Subject: Bluetooth: Change signature of smp_conn_security() To make it clear that it may be called from contexts that may not have any knowledge of L2CAP, we change the connection parameter, to receive a hci_conn. This also makes it clear that it is checking the security of the link. Signed-off-by: Vinicius Costa Gomes Signed-off-by: Gustavo Padovan --- include/net/bluetooth/smp.h | 2 +- net/bluetooth/l2cap_core.c | 11 ++++++----- net/bluetooth/l2cap_sock.c | 2 +- net/bluetooth/smp.c | 4 ++-- 4 files changed, 10 insertions(+), 9 deletions(-) diff --git a/include/net/bluetooth/smp.h b/include/net/bluetooth/smp.h index ca356a734920..8b27927b2a55 100644 --- a/include/net/bluetooth/smp.h +++ b/include/net/bluetooth/smp.h @@ -136,7 +136,7 @@ struct smp_chan { }; /* SMP Commands */ -int smp_conn_security(struct l2cap_conn *conn, __u8 sec_level); +int smp_conn_security(struct hci_conn *hcon, __u8 sec_level); int smp_sig_channel(struct l2cap_conn *conn, struct sk_buff *skb); int smp_distribute_keys(struct l2cap_conn *conn, __u8 force); int smp_user_confirm_reply(struct hci_conn *conn, u16 mgmt_op, __le32 passkey); diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c index daa149b7003c..4ea1710a4783 100644 --- a/net/bluetooth/l2cap_core.c +++ b/net/bluetooth/l2cap_core.c @@ -1199,14 +1199,15 @@ clean: static void l2cap_conn_ready(struct l2cap_conn *conn) { struct l2cap_chan *chan; + struct hci_conn *hcon = conn->hcon; BT_DBG("conn %p", conn); - if (!conn->hcon->out && conn->hcon->type == LE_LINK) + if (!hcon->out && hcon->type == LE_LINK) l2cap_le_conn_ready(conn); - if (conn->hcon->out && conn->hcon->type == LE_LINK) - smp_conn_security(conn, conn->hcon->pending_sec_level); + if (hcon->out && hcon->type == LE_LINK) + smp_conn_security(hcon, hcon->pending_sec_level); mutex_lock(&conn->chan_lock); @@ -1219,8 +1220,8 @@ static void l2cap_conn_ready(struct l2cap_conn *conn) continue; } - if (conn->hcon->type == LE_LINK) { - if (smp_conn_security(conn, chan->sec_level)) + if (hcon->type == LE_LINK) { + if (smp_conn_security(hcon, chan->sec_level)) l2cap_chan_ready(chan); } else if (chan->chan_type != L2CAP_CHAN_CONN_ORIENTED) { diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c index b94abd30e6f9..45cb0b0dd2c7 100644 --- a/net/bluetooth/l2cap_sock.c +++ b/net/bluetooth/l2cap_sock.c @@ -615,7 +615,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, ch break; } - if (smp_conn_security(conn, sec.level)) + if (smp_conn_security(conn->hcon, sec.level)) break; sk->sk_state = BT_CONFIG; chan->state = BT_CONFIG; diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c index 98ffc1b6a6fa..8c225ef349cd 100644 --- a/net/bluetooth/smp.c +++ b/net/bluetooth/smp.c @@ -760,9 +760,9 @@ static u8 smp_cmd_security_req(struct l2cap_conn *conn, struct sk_buff *skb) return 0; } -int smp_conn_security(struct l2cap_conn *conn, __u8 sec_level) +int smp_conn_security(struct hci_conn *hcon, __u8 sec_level) { - struct hci_conn *hcon = conn->hcon; + struct l2cap_conn *conn = hcon->l2cap_data; struct smp_chan *smp = conn->smp_chan; __u8 authreq; -- cgit v1.2.1 From d8343f125710fb596f7a88cd756679f14f4e77b9 Mon Sep 17 00:00:00 2001 From: Vinicius Costa Gomes Date: Thu, 23 Aug 2012 21:32:44 -0300 Subject: Bluetooth: Fix sending a HCI Authorization Request over LE links MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit In the case that the link is already in the connected state and a Pairing request arrives from the mgmt interface, hci_conn_security() would be called but it was not considering LE links. Reported-by: João Paulo Rechi Vita Signed-off-by: Vinicius Costa Gomes Signed-off-by: Gustavo Padovan --- net/bluetooth/hci_conn.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c index 5ad7da217474..3c094e78dde9 100644 --- a/net/bluetooth/hci_conn.c +++ b/net/bluetooth/hci_conn.c @@ -29,6 +29,7 @@ #include #include #include +#include static void hci_le_connect(struct hci_conn *conn) { @@ -619,6 +620,9 @@ int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type) { BT_DBG("hcon %p", conn); + if (conn->type == LE_LINK) + return smp_conn_security(conn, sec_level); + /* For sdp we don't need the link key. */ if (sec_level == BT_SECURITY_SDP) return 1; -- cgit v1.2.1 From 50d4b3062d6d4f165c76854a7644b1502836f9b9 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Sat, 18 Aug 2012 09:48:00 +0100 Subject: staging:iio: prevent divide by zero bugs "val" is used as a divisor later, so we should check for zero here to avoid a division by zero. Signed-off-by: Dan Carpenter Acked-by: Lars-Peter Clausen Signed-off-by: Jonathan Cameron --- drivers/staging/iio/adc/ad7192.c | 2 ++ drivers/staging/iio/gyro/adis16260_core.c | 2 ++ drivers/staging/iio/imu/adis16400_core.c | 2 ++ drivers/staging/iio/meter/ade7753.c | 2 ++ drivers/staging/iio/meter/ade7754.c | 2 ++ drivers/staging/iio/meter/ade7759.c | 2 ++ 6 files changed, 12 insertions(+) diff --git a/drivers/staging/iio/adc/ad7192.c b/drivers/staging/iio/adc/ad7192.c index 095837285f4f..19a064d649e3 100644 --- a/drivers/staging/iio/adc/ad7192.c +++ b/drivers/staging/iio/adc/ad7192.c @@ -647,6 +647,8 @@ static ssize_t ad7192_write_frequency(struct device *dev, ret = strict_strtoul(buf, 10, &lval); if (ret) return ret; + if (lval == 0) + return -EINVAL; mutex_lock(&indio_dev->mlock); if (iio_buffer_enabled(indio_dev)) { diff --git a/drivers/staging/iio/gyro/adis16260_core.c b/drivers/staging/iio/gyro/adis16260_core.c index 93aa431287ac..eb8e9d69efd3 100644 --- a/drivers/staging/iio/gyro/adis16260_core.c +++ b/drivers/staging/iio/gyro/adis16260_core.c @@ -195,6 +195,8 @@ static ssize_t adis16260_write_frequency(struct device *dev, ret = strict_strtol(buf, 10, &val); if (ret) return ret; + if (val == 0) + return -EINVAL; mutex_lock(&indio_dev->mlock); if (spi_get_device_id(st->us)) { diff --git a/drivers/staging/iio/imu/adis16400_core.c b/drivers/staging/iio/imu/adis16400_core.c index 1f4c17779b5a..a618327e06ed 100644 --- a/drivers/staging/iio/imu/adis16400_core.c +++ b/drivers/staging/iio/imu/adis16400_core.c @@ -234,6 +234,8 @@ static ssize_t adis16400_write_frequency(struct device *dev, ret = strict_strtol(buf, 10, &val); if (ret) return ret; + if (val == 0) + return -EINVAL; mutex_lock(&indio_dev->mlock); diff --git a/drivers/staging/iio/meter/ade7753.c b/drivers/staging/iio/meter/ade7753.c index f04ece7fbc2f..3ccff189f258 100644 --- a/drivers/staging/iio/meter/ade7753.c +++ b/drivers/staging/iio/meter/ade7753.c @@ -425,6 +425,8 @@ static ssize_t ade7753_write_frequency(struct device *dev, ret = strict_strtol(buf, 10, &val); if (ret) return ret; + if (val == 0) + return -EINVAL; mutex_lock(&indio_dev->mlock); diff --git a/drivers/staging/iio/meter/ade7754.c b/drivers/staging/iio/meter/ade7754.c index 6cee28a5e877..abb1e9c8d094 100644 --- a/drivers/staging/iio/meter/ade7754.c +++ b/drivers/staging/iio/meter/ade7754.c @@ -445,6 +445,8 @@ static ssize_t ade7754_write_frequency(struct device *dev, ret = strict_strtol(buf, 10, &val); if (ret) return ret; + if (val == 0) + return -EINVAL; mutex_lock(&indio_dev->mlock); diff --git a/drivers/staging/iio/meter/ade7759.c b/drivers/staging/iio/meter/ade7759.c index b3f7e0fa9612..eb0a2a98f388 100644 --- a/drivers/staging/iio/meter/ade7759.c +++ b/drivers/staging/iio/meter/ade7759.c @@ -385,6 +385,8 @@ static ssize_t ade7759_write_frequency(struct device *dev, ret = strict_strtol(buf, 10, &val); if (ret) return ret; + if (val == 0) + return -EINVAL; mutex_lock(&indio_dev->mlock); -- cgit v1.2.1 From d1dc9c1276a4d988b29372fe67796430d5cbc756 Mon Sep 17 00:00:00 2001 From: Peter Meerwald Date: Wed, 22 Aug 2012 20:37:00 +0100 Subject: staging iio: fix potential memory leak in lis3l02dq_ring.c Signed-off-by: Peter Meerwald Signed-off-by: Jonathan Cameron --- drivers/staging/iio/accel/lis3l02dq_ring.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/staging/iio/accel/lis3l02dq_ring.c b/drivers/staging/iio/accel/lis3l02dq_ring.c index 18d108fd967a..f3da59063ed2 100644 --- a/drivers/staging/iio/accel/lis3l02dq_ring.c +++ b/drivers/staging/iio/accel/lis3l02dq_ring.c @@ -121,8 +121,10 @@ static int lis3l02dq_get_buffer_element(struct iio_dev *indio_dev, if (rx_array == NULL) return -ENOMEM; ret = lis3l02dq_read_all(indio_dev, rx_array); - if (ret < 0) + if (ret < 0) { + kfree(rx_array); return ret; + } for (i = 0; i < scan_count; i++) data[i] = combine_8_to_16(rx_array[i*4+1], rx_array[i*4+3]); -- cgit v1.2.1 From f755bbbf1f9f180aa61eb730d638b62e225bfc10 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Sat, 25 Aug 2012 21:57:09 +0200 Subject: drivers/iio/adc/at91_adc.c: adjust inconsistent IS_ERR and PTR_ERR Change the call to PTR_ERR to access the value just tested by IS_ERR. The semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // @@ expression e,e1; @@ ( if (IS_ERR(e)) { ... PTR_ERR(e) ... } | if (IS_ERR(e=e1)) { ... PTR_ERR(e) ... } | *if (IS_ERR(e)) { ... * PTR_ERR(e1) ... } ) // Signed-off-by: Julia Lawall Signed-off-by: Jonathan Cameron --- drivers/iio/adc/at91_adc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c index f61780a02374..3bd5540238a7 100644 --- a/drivers/iio/adc/at91_adc.c +++ b/drivers/iio/adc/at91_adc.c @@ -617,7 +617,7 @@ static int __devinit at91_adc_probe(struct platform_device *pdev) st->adc_clk = clk_get(&pdev->dev, "adc_op_clk"); if (IS_ERR(st->adc_clk)) { dev_err(&pdev->dev, "Failed to get the ADC clock.\n"); - ret = PTR_ERR(st->clk); + ret = PTR_ERR(st->adc_clk); goto error_disable_clk; } -- cgit v1.2.1 From b969afc8b719bbe3f0842a694e6bf5e87f08868f Mon Sep 17 00:00:00 2001 From: Joachim Eastwood Date: Thu, 23 Aug 2012 18:14:54 +0200 Subject: ASoC: atmel-ssc: include linux/io.h for raw io Include linux/io.h for raw io operations in atmel-scc header. This fixes the following build error: CC [M] sound/soc/atmel/atmel_ssc_dai.o sound/soc/atmel/atmel_ssc_dai.c: In function 'atmel_ssc_interrupt': sound/soc/atmel/atmel_ssc_dai.c:171: error: implicit declaration of function '__raw_readl' sound/soc/atmel/atmel_ssc_dai.c: In function 'atmel_ssc_shutdown': sound/soc/atmel/atmel_ssc_dai.c:249: error: implicit declaration of function '__raw_writel' Signed-off-by: Joachim Eastwood Signed-off-by: Nicolas Ferre Acked-by: Jean-Christophe PLAGNIOL-VILLARD Signed-off-by: Mark Brown --- include/linux/atmel-ssc.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/linux/atmel-ssc.h b/include/linux/atmel-ssc.h index 06023393fba9..4eb31752e2b7 100644 --- a/include/linux/atmel-ssc.h +++ b/include/linux/atmel-ssc.h @@ -3,6 +3,7 @@ #include #include +#include struct ssc_device { struct list_head list; -- cgit v1.2.1 From c921928661eda599d73a6a86e58bdd5aecfa18cb Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Fri, 24 Aug 2012 21:20:15 -0600 Subject: sound: tegra_alc5632: remove HP detect GPIO inversion Both the schematics and practical testing show that the HP detect GPIO is high when the headphones are plugged in. Hence, the snd_soc_jack_gpio should not specify to invert the signal. Signed-off-by: Stephen Warren Acked-by: Andrey Danin Signed-off-by: Mark Brown Cc: # v3.4 v3.5 --- sound/soc/tegra/tegra_alc5632.c | 1 - 1 file changed, 1 deletion(-) diff --git a/sound/soc/tegra/tegra_alc5632.c b/sound/soc/tegra/tegra_alc5632.c index e463529b38bb..76cb1b363b71 100644 --- a/sound/soc/tegra/tegra_alc5632.c +++ b/sound/soc/tegra/tegra_alc5632.c @@ -89,7 +89,6 @@ static struct snd_soc_jack_gpio tegra_alc5632_hp_jack_gpio = { .name = "Headset detection", .report = SND_JACK_HEADSET, .debounce_time = 150, - .invert = 1, }; static const struct snd_soc_dapm_widget tegra_alc5632_dapm_widgets[] = { -- cgit v1.2.1 From bbd99797973f2cebd905bf6469ce08b531ab258f Mon Sep 17 00:00:00 2001 From: Miklos Szeredi Date: Thu, 30 Aug 2012 19:24:34 +0200 Subject: cuse: fix fuse_conn_kill() fuse_conn_kill() removed fc->entry, called fuse_ctl_remove_conn() and fuse_bdi_destroy(). None of which is appropriate for cuse cleanup. The fuse_ctl_remove_conn() decrements the nlink on the control filesystem, which is totally bogus. The others are harmless but unnecessary. So move these out from fuse_conn_kill() to fuse_put_super() where they belong. Signed-off-by: Miklos Szeredi --- fs/fuse/inode.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c index ce0a2838ccd0..fca222dabe3c 100644 --- a/fs/fuse/inode.c +++ b/fs/fuse/inode.c @@ -367,11 +367,6 @@ void fuse_conn_kill(struct fuse_conn *fc) wake_up_all(&fc->waitq); wake_up_all(&fc->blocked_waitq); wake_up_all(&fc->reserved_req_waitq); - mutex_lock(&fuse_mutex); - list_del(&fc->entry); - fuse_ctl_remove_conn(fc); - mutex_unlock(&fuse_mutex); - fuse_bdi_destroy(fc); } EXPORT_SYMBOL_GPL(fuse_conn_kill); @@ -380,7 +375,14 @@ static void fuse_put_super(struct super_block *sb) struct fuse_conn *fc = get_fuse_conn_super(sb); fuse_send_destroy(fc); + fuse_conn_kill(fc); + mutex_lock(&fuse_mutex); + list_del(&fc->entry); + fuse_ctl_remove_conn(fc); + mutex_unlock(&fuse_mutex); + fuse_bdi_destroy(fc); + fuse_conn_put(fc); } -- cgit v1.2.1 From 8d39d801d64658d7d69e4754f287a71e9f9bbcb8 Mon Sep 17 00:00:00 2001 From: Miklos Szeredi Date: Thu, 30 Aug 2012 19:24:35 +0200 Subject: cuse: kill connection on initialization error Luca Risolia reported that a CUSE daemon will continue to run even if initialization of the emulated device failes for some reason (e.g. the device number is already registered by another driver). This patch disconnects the fuse device on error, which will make the userspace CUSE daemon exit, albeit without indication about what the problem was. Reported-by: Luca Risolia Signed-off-by: Miklos Szeredi --- fs/fuse/cuse.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/fs/fuse/cuse.c b/fs/fuse/cuse.c index 3426521f3205..ee8d55042298 100644 --- a/fs/fuse/cuse.c +++ b/fs/fuse/cuse.c @@ -396,7 +396,7 @@ err_device: err_region: unregister_chrdev_region(devt, 1); err: - fc->conn_error = 1; + fuse_conn_kill(fc); goto out; } @@ -532,8 +532,6 @@ static int cuse_channel_release(struct inode *inode, struct file *file) cdev_del(cc->cdev); } - /* kill connection and shutdown channel */ - fuse_conn_kill(&cc->fc); rc = fuse_dev_release(inode, file); /* puts the base reference */ return rc; -- cgit v1.2.1 From 45caae74d238ef6583e9402cb8c550cc0b0f7dbd Mon Sep 17 00:00:00 2001 From: Igor Grinberg Date: Tue, 28 Aug 2012 01:26:14 +0300 Subject: ARM: OMAP: timer: obey the !CONFIG_OMAP_32K_TIMER Currently, omap2_sync32k_clocksource_init() function initializes the 32K timer as the system clock source regardless of the CONFIG_OMAP_32K_TIMER setting. Fix this by providing a default implementation for !CONFIG_OMAP_32K_TIMER case. Signed-off-by: Igor Grinberg Reviewed-by: Paul Walmsley Acked-by: Santosh Shilimkar Cc: stable@vger.kernel.org Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/timer.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/arch/arm/mach-omap2/timer.c b/arch/arm/mach-omap2/timer.c index 2ff6d41ec6c6..2ba4f57dda86 100644 --- a/arch/arm/mach-omap2/timer.c +++ b/arch/arm/mach-omap2/timer.c @@ -260,6 +260,7 @@ static u32 notrace dmtimer_read_sched_clock(void) return 0; } +#ifdef CONFIG_OMAP_32K_TIMER /* Setup free-running counter for clocksource */ static int __init omap2_sync32k_clocksource_init(void) { @@ -299,6 +300,12 @@ static int __init omap2_sync32k_clocksource_init(void) return ret; } +#else +static inline int omap2_sync32k_clocksource_init(void) +{ + return -ENODEV; +} +#endif static void __init omap2_gptimer_clocksource_init(int gptimer_id, const char *fck_source) -- cgit v1.2.1 From 528c28f5c1cd435c45515b323919205c95342331 Mon Sep 17 00:00:00 2001 From: Aaro Koskinen Date: Wed, 29 Aug 2012 18:24:30 +0300 Subject: ARM: OMAP: sram: fix OMAP4 errata handling OMAP4-specific code should be executed only if we are running on OMAP4. Otherwise it may break multi-OMAP kernels. Found by reading the code. Signed-off-by: Aaro Koskinen Acked-by: Santosh Shilimkar Signed-off-by: Tony Lindgren --- arch/arm/plat-omap/sram.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/plat-omap/sram.c b/arch/arm/plat-omap/sram.c index 766181cb5c95..85c23db25034 100644 --- a/arch/arm/plat-omap/sram.c +++ b/arch/arm/plat-omap/sram.c @@ -175,8 +175,10 @@ static void __init omap_map_sram(void) return; #ifdef CONFIG_OMAP4_ERRATA_I688 + if (cpu_is_omap44xx()) { omap_sram_start += PAGE_SIZE; omap_sram_size -= SZ_16K; + } #endif if (cpu_is_omap34xx()) { /* -- cgit v1.2.1 From b285673489e39252a2c3f0c7a7d77fd28a6cda38 Mon Sep 17 00:00:00 2001 From: Aaro Koskinen Date: Wed, 29 Aug 2012 18:24:31 +0300 Subject: ARM: OMAP: sram: skip the first 16K on OMAP3 HS In some OMAP3 HS devices (at least Nokia N9 and N950), the public SRAM seems to conflict with secure portition of SRAM. When booting the 3.6-rc3 kernel (and also earlier) on these devices, the kernel gets tainted with tons of the following warnings: [ 6.894348] In-band Error seen by MPU at address 0 [...] [ 6.894378] WARNING: at arch/arm/mach-omap2/omap_l3_smx.c:162 Fix this by skipping the first 16K of the public SRAM. (Note that the mapping could not be changed, as it resulted in secure monitor call failure in save_secure_sram().) This will leave 12K SRAM available that should be still sufficient. The patch has been boot tested with vanilla 3.6-rc3 on N900, N950 and N9. Signed-off-by: Aaro Koskinen Acked-by: Santosh Shilimkar Signed-off-by: Tony Lindgren --- arch/arm/plat-omap/sram.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/arch/arm/plat-omap/sram.c b/arch/arm/plat-omap/sram.c index 85c23db25034..024f3b08db29 100644 --- a/arch/arm/plat-omap/sram.c +++ b/arch/arm/plat-omap/sram.c @@ -68,6 +68,7 @@ static unsigned long omap_sram_start; static void __iomem *omap_sram_base; +static unsigned long omap_sram_skip; static unsigned long omap_sram_size; static void __iomem *omap_sram_ceil; @@ -106,6 +107,7 @@ static int is_sram_locked(void) */ static void __init omap_detect_sram(void) { + omap_sram_skip = SRAM_BOOTLOADER_SZ; if (cpu_class_is_omap2()) { if (is_sram_locked()) { if (cpu_is_omap34xx()) { @@ -113,6 +115,7 @@ static void __init omap_detect_sram(void) if ((omap_type() == OMAP2_DEVICE_TYPE_EMU) || (omap_type() == OMAP2_DEVICE_TYPE_SEC)) { omap_sram_size = 0x7000; /* 28K */ + omap_sram_skip += SZ_16K; } else { omap_sram_size = 0x8000; /* 32K */ } @@ -205,8 +208,8 @@ static void __init omap_map_sram(void) * Looks like we need to preserve some bootloader code at the * beginning of SRAM for jumping to flash for reboot to work... */ - memset_io(omap_sram_base + SRAM_BOOTLOADER_SZ, 0, - omap_sram_size - SRAM_BOOTLOADER_SZ); + memset_io(omap_sram_base + omap_sram_skip, 0, + omap_sram_size - omap_sram_skip); } /* @@ -220,7 +223,7 @@ void *omap_sram_push_address(unsigned long size) { unsigned long available, new_ceil = (unsigned long)omap_sram_ceil; - available = omap_sram_ceil - (omap_sram_base + SRAM_BOOTLOADER_SZ); + available = omap_sram_ceil - (omap_sram_base + omap_sram_skip); if (size > available) { pr_err("Not enough space in SRAM\n"); -- cgit v1.2.1 From a17fb8f520c3c662686aa54a86773f354002c7d3 Mon Sep 17 00:00:00 2001 From: Radek Pilar Date: Fri, 17 Aug 2012 18:03:43 +0200 Subject: ARM: OMAP: Config fix for omap3-touchbook board Fix inconsistency between mach-types and CONFIG_ name that prevents touchbook board from booting. Signed-off-by: Radek Pilar Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/Kconfig | 3 ++- arch/arm/mach-omap2/Makefile | 2 +- 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig index dd2db025f778..0a3e1b9f1fbc 100644 --- a/arch/arm/mach-omap2/Kconfig +++ b/arch/arm/mach-omap2/Kconfig @@ -231,10 +231,11 @@ config MACH_OMAP3_PANDORA select OMAP_PACKAGE_CBB select REGULATOR_FIXED_VOLTAGE if REGULATOR -config MACH_OMAP3_TOUCHBOOK +config MACH_TOUCHBOOK bool "OMAP3 Touch Book" depends on ARCH_OMAP3 default y + select OMAP_PACKAGE_CBB config MACH_OMAP_3430SDP bool "OMAP 3430 SDP board" diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile index f6a24b3f9c4f..34c2c7f59f0a 100644 --- a/arch/arm/mach-omap2/Makefile +++ b/arch/arm/mach-omap2/Makefile @@ -255,7 +255,7 @@ obj-$(CONFIG_MACH_OMAP_3630SDP) += board-zoom-display.o obj-$(CONFIG_MACH_CM_T35) += board-cm-t35.o obj-$(CONFIG_MACH_CM_T3517) += board-cm-t3517.o obj-$(CONFIG_MACH_IGEP0020) += board-igep0020.o -obj-$(CONFIG_MACH_OMAP3_TOUCHBOOK) += board-omap3touchbook.o +obj-$(CONFIG_MACH_TOUCHBOOK) += board-omap3touchbook.o obj-$(CONFIG_MACH_OMAP_4430SDP) += board-4430sdp.o obj-$(CONFIG_MACH_OMAP4_PANDA) += board-omap4panda.o -- cgit v1.2.1 From a348cd5fd85dbca7260ef865c5def85929932861 Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Fri, 31 Aug 2012 09:56:25 +1000 Subject: drm/nvd0/disp: hopefully fix selection of 6/8bpc mode on DP outputs I have a very limited number of traces available for DP on NVD9+, but, these values produce the same as the binary driver on a confirmed 18-bit eDP panel and a confirmed 24-bit eDP panel (Retina MBP). It's interesting that the bitfield values also match the MODE_CTRL values that control the same thing on nv50:nvd9. Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/nvd0_display.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nvd0_display.c b/drivers/gpu/drm/nouveau/nvd0_display.c index dac525b2994e..8a2fc89b7763 100644 --- a/drivers/gpu/drm/nouveau/nvd0_display.c +++ b/drivers/gpu/drm/nouveau/nvd0_display.c @@ -1510,10 +1510,10 @@ nvd0_sor_mode_set(struct drm_encoder *encoder, struct drm_display_mode *umode, case OUTPUT_DP: if (nv_connector->base.display_info.bpc == 6) { nv_encoder->dp.datarate = mode->clock * 18 / 8; - syncs |= 0x00000140; + syncs |= 0x00000002 << 6; } else { nv_encoder->dp.datarate = mode->clock * 24 / 8; - syncs |= 0x00000180; + syncs |= 0x00000005 << 6; } if (nv_encoder->dcb->sorconf.link & 1) -- cgit v1.2.1 From 991083ba60f89e717e3a4175be96d48a810e9eae Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Fri, 31 Aug 2012 10:51:20 +1000 Subject: drm/nv50-/gpio: initialise to vbios defaults during init This is required to fix an issue on the Retina MBP where the eDP panel's AUX channel isn't wired up to the HPD pin for the panel, causing our aux code to bail out early. From looking at various traces of the binary driver, it appears NVIDIA do something very similar on at least all nv50+ chipsets during their initialisation sequence. So, hopefully this is safe. Issue and fix initially tracked down by Ryan Bourgeois on fdo#51971. Backported fix from reworked nouveau kernel module. Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/nv50_gpio.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/nouveau/nv50_gpio.c b/drivers/gpu/drm/nouveau/nv50_gpio.c index f429e6a8ca7a..f03490534893 100644 --- a/drivers/gpu/drm/nouveau/nv50_gpio.c +++ b/drivers/gpu/drm/nouveau/nv50_gpio.c @@ -115,6 +115,9 @@ nv50_gpio_init(struct drm_device *dev) { struct drm_nouveau_private *dev_priv = dev->dev_private; + /* initialise gpios and routing to vbios defaults */ + nouveau_gpio_reset(dev); + /* disable, and ack any pending gpio interrupts */ nv_wr32(dev, 0xe050, 0x00000000); nv_wr32(dev, 0xe054, 0xffffffff); -- cgit v1.2.1 From fd4fb262b31ecb06bf93defb036e72b33ddf0200 Mon Sep 17 00:00:00 2001 From: Prasad Joshi Date: Fri, 31 Aug 2012 08:55:21 +0530 Subject: ASoC: spear: correct the check for NULL dma_buffer pointer The if condition if (!buf && !buf->area) checks if the buf pointer is NULL and then dereferences it again to check if the buffer area is NULL, resulting in possible NULL dereference. Signed-off-by: Prasad Joshi Signed-off-by: Mark Brown --- sound/soc/spear/spear_pcm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/spear/spear_pcm.c b/sound/soc/spear/spear_pcm.c index 97c2cac8e92c..8c7f23729446 100644 --- a/sound/soc/spear/spear_pcm.c +++ b/sound/soc/spear/spear_pcm.c @@ -138,7 +138,7 @@ static void spear_pcm_free(struct snd_pcm *pcm) continue; buf = &substream->dma_buffer; - if (!buf && !buf->area) + if (!buf || !buf->area) continue; dma_free_writecombine(pcm->card->dev, buf->bytes, -- cgit v1.2.1 From 39855b5ba9a72a80de96009011b7f8b2fb01612b Mon Sep 17 00:00:00 2001 From: Joe Stringer Date: Fri, 31 Aug 2012 15:28:28 -0700 Subject: openvswitch: Fix typo Signed-off-by: Joe Stringer Signed-off-by: Jesse Gross --- net/openvswitch/actions.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/openvswitch/actions.c b/net/openvswitch/actions.c index f3f96badf5aa..954405ceae9e 100644 --- a/net/openvswitch/actions.c +++ b/net/openvswitch/actions.c @@ -45,7 +45,7 @@ static int make_writable(struct sk_buff *skb, int write_len) return pskb_expand_head(skb, 0, 0, GFP_ATOMIC); } -/* remove VLAN header from packet and update csum accrodingly. */ +/* remove VLAN header from packet and update csum accordingly. */ static int __pop_vlan_tci(struct sk_buff *skb, __be16 *current_tci) { struct vlan_hdr *vhdr; -- cgit v1.2.1 From 0273de08c455031335dbea2630208f66106b0c14 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Mon, 3 Sep 2012 07:22:16 +1000 Subject: drm/ast: drop debug level on error printk This was never an error, drop to a debug print. Reported-by: Keven Lachance Signed-off-by: Dave Airlie --- drivers/gpu/drm/ast/ast_mode.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/ast/ast_mode.c b/drivers/gpu/drm/ast/ast_mode.c index 7282c081fb53..a712cafcfa1d 100644 --- a/drivers/gpu/drm/ast/ast_mode.c +++ b/drivers/gpu/drm/ast/ast_mode.c @@ -841,7 +841,7 @@ int ast_cursor_init(struct drm_device *dev) ast->cursor_cache = obj; ast->cursor_cache_gpu_addr = gpu_addr; - DRM_ERROR("pinned cursor cache at %llx\n", ast->cursor_cache_gpu_addr); + DRM_DEBUG_KMS("pinned cursor cache at %llx\n", ast->cursor_cache_gpu_addr); return 0; fail: return ret; -- cgit v1.2.1 From c1f05264d834e9fb9a4ebfd36dbd86172ac7107a Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Thu, 30 Aug 2012 11:06:18 +1000 Subject: drm/i915/edp: get the panel delay before powering up In order to setup the i2c channel, we power up the panel via ironlake_edp_panel_vdd_on, however it requires intel_dp->panel_power_up_delay to be initialised, which hasn't been setup yet. So move things around so we set the panel power up values first then init the i2c stuff. This is one step to fixing the eDP panel in the MBP from uninitialised state. Signed-off-by: Dave Airlie Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_dp.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index a6c426afaa7a..ace757af9133 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -2533,14 +2533,10 @@ intel_dp_init(struct drm_device *dev, int output_reg) break; } - intel_dp_i2c_init(intel_dp, intel_connector, name); - /* Cache some DPCD data in the eDP case */ if (is_edp(intel_dp)) { - bool ret; struct edp_power_seq cur, vbt; u32 pp_on, pp_off, pp_div; - struct edid *edid; pp_on = I915_READ(PCH_PP_ON_DELAYS); pp_off = I915_READ(PCH_PP_OFF_DELAYS); @@ -2591,6 +2587,13 @@ intel_dp_init(struct drm_device *dev, int output_reg) DRM_DEBUG_KMS("backlight on delay %d, off delay %d\n", intel_dp->backlight_on_delay, intel_dp->backlight_off_delay); + } + + intel_dp_i2c_init(intel_dp, intel_connector, name); + + if (is_edp(intel_dp)) { + bool ret; + struct edid *edid; ironlake_edp_panel_vdd_on(intel_dp); ret = intel_dp_get_dpcd(intel_dp); -- cgit v1.2.1 From fcbc50da7753b210b4442ca9abc4efbd4e481f6e Mon Sep 17 00:00:00 2001 From: Jani Nikula Date: Wed, 29 Aug 2012 14:08:42 +0300 Subject: drm/i915: only enable sdvo hotplug irq if needed MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Avoid constant wakeups caused by noisy irq lines when we don't even care about the irq. This should be particularly useful for i945g/gm where the hotplug has been disabled: commit 768b107e4b3be0acf6f58e914afe4f337c00932b Author: Daniel Vetter Date: Fri May 4 11:29:56 2012 +0200 drm/i915: disable sdvo hotplug on i945g/gm v2: While at it, remove the bogus hotplug_active read, and do not mask hotplug_active[0] before checking whether the irq is needed, per discussion with Daniel on IRC. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=38442 Tested-by: Dominik Köppl Signed-off-by: Jani Nikula Cc: stable@vger.kernel.org Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_sdvo.c | 15 ++++++--------- 1 file changed, 6 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c index d81bb0bf2885..123afd357611 100644 --- a/drivers/gpu/drm/i915/intel_sdvo.c +++ b/drivers/gpu/drm/i915/intel_sdvo.c @@ -2573,7 +2573,6 @@ bool intel_sdvo_init(struct drm_device *dev, uint32_t sdvo_reg, bool is_sdvob) hotplug_mask = intel_sdvo->is_sdvob ? SDVOB_HOTPLUG_INT_STATUS_I915 : SDVOC_HOTPLUG_INT_STATUS_I915; } - dev_priv->hotplug_supported_mask |= hotplug_mask; drm_encoder_helper_add(&intel_encoder->base, &intel_sdvo_helper_funcs); @@ -2581,14 +2580,6 @@ bool intel_sdvo_init(struct drm_device *dev, uint32_t sdvo_reg, bool is_sdvob) if (!intel_sdvo_get_capabilities(intel_sdvo, &intel_sdvo->caps)) goto err; - /* Set up hotplug command - note paranoia about contents of reply. - * We assume that the hardware is in a sane state, and only touch - * the bits we think we understand. - */ - intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_ACTIVE_HOT_PLUG, - &intel_sdvo->hotplug_active, 2); - intel_sdvo->hotplug_active[0] &= ~0x3; - if (intel_sdvo_output_setup(intel_sdvo, intel_sdvo->caps.output_flags) != true) { DRM_DEBUG_KMS("SDVO output failed to setup on %s\n", @@ -2596,6 +2587,12 @@ bool intel_sdvo_init(struct drm_device *dev, uint32_t sdvo_reg, bool is_sdvob) goto err; } + /* Only enable the hotplug irq if we need it, to work around noisy + * hotplug lines. + */ + if (intel_sdvo->hotplug_active[0]) + dev_priv->hotplug_supported_mask |= hotplug_mask; + intel_sdvo_select_ddc_bus(dev_priv, intel_sdvo, sdvo_reg); /* Set the input timing to the screen. Assume always input 0. */ -- cgit v1.2.1 From 381bf7cad9dbce701c618f8942fd35954952ef39 Mon Sep 17 00:00:00 2001 From: Daniel Mack Date: Tue, 28 Aug 2012 10:38:03 +0200 Subject: fuse: mark variables uninitialized gcc 4.6.3 complains about uninitialized variables in fs/fuse/control.c: CC fs/fuse/control.o fs/fuse/control.c: In function 'fuse_conn_congestion_threshold_write': fs/fuse/control.c:165:29: warning: 'val' may be used uninitialized in this function [-Wuninitialized] fs/fuse/control.c: In function 'fuse_conn_max_background_write': fs/fuse/control.c:128:23: warning: 'val' may be used uninitialized in this function [-Wuninitialized] fuse_conn_limit_write() will always return non-zero unless the &val is modified, so the warning is misleading. Let the compiler know about it by marking 'val' with 'uninitialized_var'. Signed-off-by: Daniel Mack Cc: Brian Foster Signed-off-by: Miklos Szeredi --- fs/fuse/control.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/fuse/control.c b/fs/fuse/control.c index 03ff5b1eba93..75a20c092dd4 100644 --- a/fs/fuse/control.c +++ b/fs/fuse/control.c @@ -117,7 +117,7 @@ static ssize_t fuse_conn_max_background_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos) { - unsigned val; + unsigned uninitialized_var(val); ssize_t ret; ret = fuse_conn_limit_write(file, buf, count, ppos, &val, @@ -154,7 +154,7 @@ static ssize_t fuse_conn_congestion_threshold_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos) { - unsigned val; + unsigned uninitialized_var(val); ssize_t ret; ret = fuse_conn_limit_write(file, buf, count, ppos, &val, -- cgit v1.2.1 From e812347ccf9e8ce073b0ba0c49d03b124707b2b4 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Sun, 2 Sep 2012 23:57:18 +0000 Subject: net: sock_edemux() should take care of timewait sockets sock_edemux() can handle either a regular socket or a timewait socket Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- net/core/sock.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/net/core/sock.c b/net/core/sock.c index 8f67ced8d6a8..7f64467535d1 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -1523,7 +1523,12 @@ EXPORT_SYMBOL(sock_rfree); void sock_edemux(struct sk_buff *skb) { - sock_put(skb->sk); + struct sock *sk = skb->sk; + + if (sk->sk_state == TCP_TIME_WAIT) + inet_twsk_put(inet_twsk(sk)); + else + sock_put(sk); } EXPORT_SYMBOL(sock_edemux); -- cgit v1.2.1 From 4c3a5bdae293f75cdf729c6c00124e8489af2276 Mon Sep 17 00:00:00 2001 From: Thomas Graf Date: Mon, 3 Sep 2012 04:27:42 +0000 Subject: sctp: Don't charge for data in sndbuf again when transmitting packet SCTP charges wmem_alloc via sctp_set_owner_w() in sctp_sendmsg() and via skb_set_owner_w() in sctp_packet_transmit(). If a sender runs out of sndbuf it will sleep in sctp_wait_for_sndbuf() and expects to be waken up by __sctp_write_space(). Buffer space charged via sctp_set_owner_w() is released in sctp_wfree() which calls __sctp_write_space() directly. Buffer space charged via skb_set_owner_w() is released via sock_wfree() which calls sk->sk_write_space() _if_ SOCK_USE_WRITE_QUEUE is not set. sctp_endpoint_init() sets SOCK_USE_WRITE_QUEUE on all sockets. Therefore if sctp_packet_transmit() manages to queue up more than sndbuf bytes, sctp_wait_for_sndbuf() will never be woken up again unless it is interrupted by a signal. This could be fixed by clearing the SOCK_USE_WRITE_QUEUE flag but ... Charging for the data twice does not make sense in the first place, it leads to overcharging sndbuf by a factor 2. Therefore this patch only charges a single byte in wmem_alloc when transmitting an SCTP packet to ensure that the socket stays alive until the packet has been released. This means that control chunks are no longer accounted for in wmem_alloc which I believe is not a problem as skb->truesize will typically lead to overcharging anyway and thus compensates for any control overhead. Signed-off-by: Thomas Graf CC: Vlad Yasevich CC: Neil Horman CC: David Miller Acked-by: Vlad Yasevich Signed-off-by: David S. Miller --- net/sctp/output.c | 21 ++++++++++++++++++++- 1 file changed, 20 insertions(+), 1 deletion(-) diff --git a/net/sctp/output.c b/net/sctp/output.c index 838e18b4d7ea..be50aa234dcd 100644 --- a/net/sctp/output.c +++ b/net/sctp/output.c @@ -364,6 +364,25 @@ finish: return retval; } +static void sctp_packet_release_owner(struct sk_buff *skb) +{ + sk_free(skb->sk); +} + +static void sctp_packet_set_owner_w(struct sk_buff *skb, struct sock *sk) +{ + skb_orphan(skb); + skb->sk = sk; + skb->destructor = sctp_packet_release_owner; + + /* + * The data chunks have already been accounted for in sctp_sendmsg(), + * therefore only reserve a single byte to keep socket around until + * the packet has been transmitted. + */ + atomic_inc(&sk->sk_wmem_alloc); +} + /* All packets are sent to the network through this function from * sctp_outq_tail(). * @@ -405,7 +424,7 @@ int sctp_packet_transmit(struct sctp_packet *packet) /* Set the owning socket so that we know where to get the * destination IP address. */ - skb_set_owner_w(nskb, sk); + sctp_packet_set_owner_w(nskb, sk); if (!sctp_transport_dst_check(tp)) { sctp_transport_route(tp, NULL, sctp_sk(sk)); -- cgit v1.2.1 From 85e87870fa18ec9f5df98e2d3b48f3699560a570 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B8rn=20Mork?= Date: Sun, 2 Sep 2012 22:26:18 +0000 Subject: net: usbnet: fix softirq storm on suspend MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Suspending an open usbnet device results in constant rescheduling of usbnet_bh. commit 65841fd5 "usbnet: handle remote wakeup asap" refactored the usbnet_bh code to allow sharing the urb allocate and submit code with usbnet_resume. In this process, a test for, and immediate return on, ENOLINK from rx_submit was unintentionally dropped. The rx queue will not grow if rx_submit fails, making usbnet_bh reschedule itself. This results in a softirq storm if the error is persistent. rx_submit translates the usb_submit_urb error EHOSTUNREACH into ENOLINK, so this is an expected and persistent error for a suspended device. The old code tested for this condition and avoided rescheduling. Putting this test back. Cc: # v3.5 Cc: Ming Lei Cc: Oliver Neukum Signed-off-by: Bjørn Mork Signed-off-by: David S. Miller --- drivers/net/usb/usbnet.c | 16 ++++++++++++---- 1 file changed, 12 insertions(+), 4 deletions(-) diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c index fd4b26d46fd5..fc9f578a1e25 100644 --- a/drivers/net/usb/usbnet.c +++ b/drivers/net/usb/usbnet.c @@ -1201,19 +1201,26 @@ deferred: } EXPORT_SYMBOL_GPL(usbnet_start_xmit); -static void rx_alloc_submit(struct usbnet *dev, gfp_t flags) +static int rx_alloc_submit(struct usbnet *dev, gfp_t flags) { struct urb *urb; int i; + int ret = 0; /* don't refill the queue all at once */ for (i = 0; i < 10 && dev->rxq.qlen < RX_QLEN(dev); i++) { urb = usb_alloc_urb(0, flags); if (urb != NULL) { - if (rx_submit(dev, urb, flags) == -ENOLINK) - return; + ret = rx_submit(dev, urb, flags); + if (ret) + goto err; + } else { + ret = -ENOMEM; + goto err; } } +err: + return ret; } /*-------------------------------------------------------------------------*/ @@ -1257,7 +1264,8 @@ static void usbnet_bh (unsigned long param) int temp = dev->rxq.qlen; if (temp < RX_QLEN(dev)) { - rx_alloc_submit(dev, GFP_ATOMIC); + if (rx_alloc_submit(dev, GFP_ATOMIC) == -ENOLINK) + return; if (temp != dev->rxq.qlen) netif_dbg(dev, link, dev->net, "rxqlen %d --> %d\n", -- cgit v1.2.1 From 577650139062dcc20246da3f61e0bdafc65edf8f Mon Sep 17 00:00:00 2001 From: Vaibhav Hiremath Date: Mon, 3 Sep 2012 11:50:36 -0600 Subject: ARM: OMAP2+: am33xx: Fix the timer fck clock naming convention With commit ae6df418a21f3a361c5f9b878e32a8aba4e17692 Sub: ARM: OMAP2+: dmtimer: cleanup fclk usage) The Timer functional clock naming convention has changed from gptX_fck => timerXfck, and so as the timer init function in mach-omap2/timer.c. OMAP4 clocktree also has changed accordingly. AM33xx Clock Tree has been merged during rc3-4 timeframe, before above commit got merged, so similar change is required for AM33xx as well (Change the gptX_fck => timerX_fck). Signed-off-by: Vaibhav Hiremath Signed-off-by: Paul Walmsley --- arch/arm/mach-omap2/clock33xx_data.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/arch/arm/mach-omap2/clock33xx_data.c b/arch/arm/mach-omap2/clock33xx_data.c index 25bbcc7ca4dc..ae27de8899a6 100644 --- a/arch/arm/mach-omap2/clock33xx_data.c +++ b/arch/arm/mach-omap2/clock33xx_data.c @@ -1036,13 +1036,13 @@ static struct omap_clk am33xx_clks[] = { CLK(NULL, "mmu_fck", &mmu_fck, CK_AM33XX), CLK(NULL, "smartreflex0_fck", &smartreflex0_fck, CK_AM33XX), CLK(NULL, "smartreflex1_fck", &smartreflex1_fck, CK_AM33XX), - CLK(NULL, "gpt1_fck", &timer1_fck, CK_AM33XX), - CLK(NULL, "gpt2_fck", &timer2_fck, CK_AM33XX), - CLK(NULL, "gpt3_fck", &timer3_fck, CK_AM33XX), - CLK(NULL, "gpt4_fck", &timer4_fck, CK_AM33XX), - CLK(NULL, "gpt5_fck", &timer5_fck, CK_AM33XX), - CLK(NULL, "gpt6_fck", &timer6_fck, CK_AM33XX), - CLK(NULL, "gpt7_fck", &timer7_fck, CK_AM33XX), + CLK(NULL, "timer1_fck", &timer1_fck, CK_AM33XX), + CLK(NULL, "timer2_fck", &timer2_fck, CK_AM33XX), + CLK(NULL, "timer3_fck", &timer3_fck, CK_AM33XX), + CLK(NULL, "timer4_fck", &timer4_fck, CK_AM33XX), + CLK(NULL, "timer5_fck", &timer5_fck, CK_AM33XX), + CLK(NULL, "timer6_fck", &timer6_fck, CK_AM33XX), + CLK(NULL, "timer7_fck", &timer7_fck, CK_AM33XX), CLK(NULL, "usbotg_fck", &usbotg_fck, CK_AM33XX), CLK(NULL, "ieee5000_fck", &ieee5000_fck, CK_AM33XX), CLK(NULL, "wdt1_fck", &wdt1_fck, CK_AM33XX), -- cgit v1.2.1 From bfb7dd25fcde96d08591258bc7e97500337a57ee Mon Sep 17 00:00:00 2001 From: Paul Walmsley Date: Mon, 3 Sep 2012 11:50:43 -0600 Subject: ARM: OMAP3xxx: clockdomain: fix software supervised wakeup/sleep Commit 4da71ae6 ("OMAP: clockdomain: Arch specific funcs for clkdm_clk_enable/disable") called the OMAP2xxx-specific functions for clockdomain wakeup and sleep. This would probably have broken software-supervised clockdomain wakeup and sleep on OMAP3. Signed-off-by: Paul Walmsley Cc: Rajendra Nayak Cc: Jon Hunter Acked-by: Rajendra Nayak --- arch/arm/mach-omap2/clockdomain2xxx_3xxx.c | 50 ++++++++++++++++++++++++++++-- 1 file changed, 48 insertions(+), 2 deletions(-) diff --git a/arch/arm/mach-omap2/clockdomain2xxx_3xxx.c b/arch/arm/mach-omap2/clockdomain2xxx_3xxx.c index a0d68dbecfa3..f99e65cfb862 100644 --- a/arch/arm/mach-omap2/clockdomain2xxx_3xxx.c +++ b/arch/arm/mach-omap2/clockdomain2xxx_3xxx.c @@ -241,6 +241,52 @@ static void omap3_clkdm_deny_idle(struct clockdomain *clkdm) _clkdm_del_autodeps(clkdm); } +static int omap3xxx_clkdm_clk_enable(struct clockdomain *clkdm) +{ + bool hwsup = false; + + if (!clkdm->clktrctrl_mask) + return 0; + + hwsup = omap2_cm_is_clkdm_in_hwsup(clkdm->pwrdm.ptr->prcm_offs, + clkdm->clktrctrl_mask); + + if (hwsup) { + /* Disable HW transitions when we are changing deps */ + _disable_hwsup(clkdm); + _clkdm_add_autodeps(clkdm); + _enable_hwsup(clkdm); + } else { + if (clkdm->flags & CLKDM_CAN_FORCE_WAKEUP) + omap3_clkdm_wakeup(clkdm); + } + + return 0; +} + +static int omap3xxx_clkdm_clk_disable(struct clockdomain *clkdm) +{ + bool hwsup = false; + + if (!clkdm->clktrctrl_mask) + return 0; + + hwsup = omap2_cm_is_clkdm_in_hwsup(clkdm->pwrdm.ptr->prcm_offs, + clkdm->clktrctrl_mask); + + if (hwsup) { + /* Disable HW transitions when we are changing deps */ + _disable_hwsup(clkdm); + _clkdm_del_autodeps(clkdm); + _enable_hwsup(clkdm); + } else { + if (clkdm->flags & CLKDM_CAN_FORCE_SLEEP) + omap3_clkdm_sleep(clkdm); + } + + return 0; +} + struct clkdm_ops omap2_clkdm_operations = { .clkdm_add_wkdep = omap2_clkdm_add_wkdep, .clkdm_del_wkdep = omap2_clkdm_del_wkdep, @@ -267,6 +313,6 @@ struct clkdm_ops omap3_clkdm_operations = { .clkdm_wakeup = omap3_clkdm_wakeup, .clkdm_allow_idle = omap3_clkdm_allow_idle, .clkdm_deny_idle = omap3_clkdm_deny_idle, - .clkdm_clk_enable = omap2_clkdm_clk_enable, - .clkdm_clk_disable = omap2_clkdm_clk_disable, + .clkdm_clk_enable = omap3xxx_clkdm_clk_enable, + .clkdm_clk_disable = omap3xxx_clkdm_clk_disable, }; -- cgit v1.2.1 From ed733619d85262439f625cc9d8b00cdaae761070 Mon Sep 17 00:00:00 2001 From: Tero Kristo Date: Mon, 3 Sep 2012 11:50:52 -0600 Subject: ARM: OMAP3: hwmod data: fix iva2 reset info IVA2 hwmod resets were missing the status bit offsets. Also, as the hwmod itself didn't have prcm info at all, resetting iva hwmod was accessing some bogus memory addresses. Added both infos to fix this. Signed-off-by: Tero Kristo Signed-off-by: Paul Walmsley --- arch/arm/mach-omap2/cm-regbits-34xx.h | 1 + arch/arm/mach-omap2/omap_hwmod_3xxx_data.c | 15 ++++++++++++--- 2 files changed, 13 insertions(+), 3 deletions(-) diff --git a/arch/arm/mach-omap2/cm-regbits-34xx.h b/arch/arm/mach-omap2/cm-regbits-34xx.h index 766338fe4d34..975f6bda0e0b 100644 --- a/arch/arm/mach-omap2/cm-regbits-34xx.h +++ b/arch/arm/mach-omap2/cm-regbits-34xx.h @@ -67,6 +67,7 @@ #define OMAP3430_EN_IVA2_DPLL_MASK (0x7 << 0) /* CM_IDLEST_IVA2 */ +#define OMAP3430_ST_IVA2_SHIFT 0 #define OMAP3430_ST_IVA2_MASK (1 << 0) /* CM_IDLEST_PLL_IVA2 */ diff --git a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c index c9e38200216b..ce7e6068768f 100644 --- a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c @@ -100,9 +100,9 @@ static struct omap_hwmod omap3xxx_mpu_hwmod = { /* IVA2 (IVA2) */ static struct omap_hwmod_rst_info omap3xxx_iva_resets[] = { - { .name = "logic", .rst_shift = 0 }, - { .name = "seq0", .rst_shift = 1 }, - { .name = "seq1", .rst_shift = 2 }, + { .name = "logic", .rst_shift = 0, .st_shift = 8 }, + { .name = "seq0", .rst_shift = 1, .st_shift = 9 }, + { .name = "seq1", .rst_shift = 2, .st_shift = 10 }, }; static struct omap_hwmod omap3xxx_iva_hwmod = { @@ -112,6 +112,15 @@ static struct omap_hwmod omap3xxx_iva_hwmod = { .rst_lines = omap3xxx_iva_resets, .rst_lines_cnt = ARRAY_SIZE(omap3xxx_iva_resets), .main_clk = "iva2_ck", + .prcm = { + .omap2 = { + .module_offs = OMAP3430_IVA2_MOD, + .prcm_reg_id = 1, + .module_bit = OMAP3430_CM_FCLKEN_IVA2_EN_IVA2_SHIFT, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430_ST_IVA2_SHIFT, + } + }, }; /* timer class */ -- cgit v1.2.1 From 471a009b6db7670299a8674cd7fb2557c8c2797f Mon Sep 17 00:00:00 2001 From: Misael Lopez Cruz Date: Mon, 3 Sep 2012 11:50:52 -0600 Subject: ARM: OMAP: hwmod code: Disable module when hwmod enable fails Clock and module mode are explictly enable when hwmod is enabled. But if the hwmod doesn't get ready on time, clocks are disabled but module is left enabled. Signed-off-by: Misael Lopez Cruz Signed-off-by: Rajendra Nayak Cc: Paul Walmsley Cc: Benoit Cousson Signed-off-by: Paul Walmsley --- arch/arm/mach-omap2/omap_hwmod.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c index 6ca8e519968d..37afbd173c2c 100644 --- a/arch/arm/mach-omap2/omap_hwmod.c +++ b/arch/arm/mach-omap2/omap_hwmod.c @@ -1889,6 +1889,7 @@ static int _enable(struct omap_hwmod *oh) _enable_sysc(oh); } } else { + _omap4_disable_module(oh); _disable_clocks(oh); pr_debug("omap_hwmod: %s: _wait_target_ready: %d\n", oh->name, r); -- cgit v1.2.1 From b360124ea008fcccf440840bde2c7f317bc31509 Mon Sep 17 00:00:00 2001 From: Tero Kristo Date: Mon, 3 Sep 2012 11:50:53 -0600 Subject: ARM: OMAP4: hwmod data: temporarily comment out data for the sl2if IP block MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The OMAP4 sl2if IP block requires some special programming for it to enter idle. Without this programming, it will prevent the rest of the chip from entering full chip idle. This patch comments out the IP block data. Later, once the appropriate support is available, this patch can be reverted. Cc: Paul Walmsley Cc: Benoît Cousson Signed-off-by: Tero Kristo Signed-off-by: Paul Walmsley --- arch/arm/mach-omap2/omap_hwmod_44xx_data.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c index 242aee498ceb..afb60917a948 100644 --- a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c @@ -4210,7 +4210,7 @@ static struct omap_hwmod_ocp_if omap44xx_dsp__iva = { }; /* dsp -> sl2if */ -static struct omap_hwmod_ocp_if omap44xx_dsp__sl2if = { +static struct omap_hwmod_ocp_if __maybe_unused omap44xx_dsp__sl2if = { .master = &omap44xx_dsp_hwmod, .slave = &omap44xx_sl2if_hwmod, .clk = "dpll_iva_m5x2_ck", @@ -4828,7 +4828,7 @@ static struct omap_hwmod_ocp_if omap44xx_l3_main_2__iss = { }; /* iva -> sl2if */ -static struct omap_hwmod_ocp_if omap44xx_iva__sl2if = { +static struct omap_hwmod_ocp_if __maybe_unused omap44xx_iva__sl2if = { .master = &omap44xx_iva_hwmod, .slave = &omap44xx_sl2if_hwmod, .clk = "dpll_iva_m5x2_ck", @@ -5362,7 +5362,7 @@ static struct omap_hwmod_ocp_if omap44xx_l4_wkup__scrm = { }; /* l3_main_2 -> sl2if */ -static struct omap_hwmod_ocp_if omap44xx_l3_main_2__sl2if = { +static struct omap_hwmod_ocp_if __maybe_unused omap44xx_l3_main_2__sl2if = { .master = &omap44xx_l3_main_2_hwmod, .slave = &omap44xx_sl2if_hwmod, .clk = "l3_div_ck", @@ -6032,7 +6032,7 @@ static struct omap_hwmod_ocp_if *omap44xx_hwmod_ocp_ifs[] __initdata = { &omap44xx_l4_abe__dmic, &omap44xx_l4_abe__dmic_dma, &omap44xx_dsp__iva, - &omap44xx_dsp__sl2if, + /* &omap44xx_dsp__sl2if, */ &omap44xx_l4_cfg__dsp, &omap44xx_l3_main_2__dss, &omap44xx_l4_per__dss, @@ -6068,7 +6068,7 @@ static struct omap_hwmod_ocp_if *omap44xx_hwmod_ocp_ifs[] __initdata = { &omap44xx_l4_per__i2c4, &omap44xx_l3_main_2__ipu, &omap44xx_l3_main_2__iss, - &omap44xx_iva__sl2if, + /* &omap44xx_iva__sl2if, */ &omap44xx_l3_main_2__iva, &omap44xx_l4_wkup__kbd, &omap44xx_l4_cfg__mailbox, @@ -6099,7 +6099,7 @@ static struct omap_hwmod_ocp_if *omap44xx_hwmod_ocp_ifs[] __initdata = { &omap44xx_l4_cfg__cm_core, &omap44xx_l4_wkup__prm, &omap44xx_l4_wkup__scrm, - &omap44xx_l3_main_2__sl2if, + /* &omap44xx_l3_main_2__sl2if, */ &omap44xx_l4_abe__slimbus1, &omap44xx_l4_abe__slimbus1_dma, &omap44xx_l4_per__slimbus2, -- cgit v1.2.1 From cab32f39dcc5b35db96497dc0a026b5dea76e4e7 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Beno=C3=AEt=20Locher?= Date: Mon, 27 Aug 2012 15:02:45 +0200 Subject: can: mcp251x: avoid repeated frame bug MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The MCP2515 has a silicon bug causing repeated frame transmission, see section 5 of MCP2515 Rev. B Silicon Errata Revision G (March 2007). Basically, setting TXBnCTRL.TXREQ in either SPI mode (00 or 11) will eventually cause the bug. The workaround proposed by Microchip is to use mode 00 and send a RTS command on the SPI bus to initiate the transmission. Cc: Signed-off-by: Benoît Locher Signed-off-by: Marc Kleine-Budde --- drivers/net/can/mcp251x.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/drivers/net/can/mcp251x.c b/drivers/net/can/mcp251x.c index a580db29e503..26e7129332ab 100644 --- a/drivers/net/can/mcp251x.c +++ b/drivers/net/can/mcp251x.c @@ -83,6 +83,11 @@ #define INSTRUCTION_LOAD_TXB(n) (0x40 + 2 * (n)) #define INSTRUCTION_READ_RXB(n) (((n) == 0) ? 0x90 : 0x94) #define INSTRUCTION_RESET 0xC0 +#define RTS_TXB0 0x01 +#define RTS_TXB1 0x02 +#define RTS_TXB2 0x04 +#define INSTRUCTION_RTS(n) (0x80 | ((n) & 0x07)) + /* MPC251x registers */ #define CANSTAT 0x0e @@ -397,6 +402,7 @@ static void mcp251x_hw_tx_frame(struct spi_device *spi, u8 *buf, static void mcp251x_hw_tx(struct spi_device *spi, struct can_frame *frame, int tx_buf_idx) { + struct mcp251x_priv *priv = dev_get_drvdata(&spi->dev); u32 sid, eid, exide, rtr; u8 buf[SPI_TRANSFER_BUF_LEN]; @@ -418,7 +424,10 @@ static void mcp251x_hw_tx(struct spi_device *spi, struct can_frame *frame, buf[TXBDLC_OFF] = (rtr << DLC_RTR_SHIFT) | frame->can_dlc; memcpy(buf + TXBDAT_OFF, frame->data, frame->can_dlc); mcp251x_hw_tx_frame(spi, buf, frame->can_dlc, tx_buf_idx); - mcp251x_write_reg(spi, TXBCTRL(tx_buf_idx), TXBCTRL_TXREQ); + + /* use INSTRUCTION_RTS, to avoid "repeated frame problem" */ + priv->spi_tx_buf[0] = INSTRUCTION_RTS(1 << tx_buf_idx); + mcp251x_spi_trans(priv->spi, 1); } static void mcp251x_hw_rx_frame(struct spi_device *spi, u8 *buf, -- cgit v1.2.1 From b379135c40163ae79ba7a54e6928b53983e74ee8 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Sat, 1 Sep 2012 03:19:57 +0000 Subject: fq_codel: dont reinit flow state When fq_codel builds a new flow, it should not reset codel state. Codel algo needs to get previous values (lastcount, drop_next) to get proper behavior. Signed-off-by: Dave Taht Signed-off-by: Eric Dumazet Acked-by: Dave Taht Signed-off-by: David S. Miller --- net/sched/sch_fq_codel.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/sched/sch_fq_codel.c b/net/sched/sch_fq_codel.c index 9fc1c62ec80e..4e606fcb2534 100644 --- a/net/sched/sch_fq_codel.c +++ b/net/sched/sch_fq_codel.c @@ -191,7 +191,6 @@ static int fq_codel_enqueue(struct sk_buff *skb, struct Qdisc *sch) if (list_empty(&flow->flowchain)) { list_add_tail(&flow->flowchain, &q->new_flows); - codel_vars_init(&flow->cvars); q->new_flow_count++; flow->deficit = q->quantum; flow->dropped = 0; @@ -418,6 +417,7 @@ static int fq_codel_init(struct Qdisc *sch, struct nlattr *opt) struct fq_codel_flow *flow = q->flows + i; INIT_LIST_HEAD(&flow->flowchain); + codel_vars_init(&flow->cvars); } } if (sch->limit >= 1) -- cgit v1.2.1 From 28dcc2d60cb570d9f549c329b2f51400553412a1 Mon Sep 17 00:00:00 2001 From: Jani Nikula Date: Mon, 3 Sep 2012 16:25:12 +0300 Subject: drm/i915: do not expose a dysfunctional backlight interface to userspace Previously intel_panel_setup_backlight() would create a sysfs backlight interface with max brightness of 1 if it was unable to figure out the max backlight brightness. This rendered the backlight interface useless. Do not create a dysfunctional backlight interface to begin with. Signed-off-by: Jani Nikula Tested-by: David Woodhouse Reviewed-by: Chris Wilson Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_panel.c | 31 ++++++++++++++++++++++--------- 1 file changed, 22 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c index 3df4f5fa892a..e019b2369861 100644 --- a/drivers/gpu/drm/i915/intel_panel.c +++ b/drivers/gpu/drm/i915/intel_panel.c @@ -162,19 +162,12 @@ static u32 i915_read_blc_pwm_ctl(struct drm_i915_private *dev_priv) return val; } -u32 intel_panel_get_max_backlight(struct drm_device *dev) +static u32 _intel_panel_get_max_backlight(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; u32 max; max = i915_read_blc_pwm_ctl(dev_priv); - if (max == 0) { - /* XXX add code here to query mode clock or hardware clock - * and program max PWM appropriately. - */ - pr_warn_once("fixme: max PWM is zero\n"); - return 1; - } if (HAS_PCH_SPLIT(dev)) { max >>= 16; @@ -188,6 +181,22 @@ u32 intel_panel_get_max_backlight(struct drm_device *dev) max *= 0xff; } + return max; +} + +u32 intel_panel_get_max_backlight(struct drm_device *dev) +{ + u32 max; + + max = _intel_panel_get_max_backlight(dev); + if (max == 0) { + /* XXX add code here to query mode clock or hardware clock + * and program max PWM appropriately. + */ + pr_warn_once("fixme: max PWM is zero\n"); + return 1; + } + DRM_DEBUG_DRIVER("max backlight PWM = %d\n", max); return max; } @@ -424,7 +433,11 @@ int intel_panel_setup_backlight(struct drm_device *dev) memset(&props, 0, sizeof(props)); props.type = BACKLIGHT_RAW; - props.max_brightness = intel_panel_get_max_backlight(dev); + props.max_brightness = _intel_panel_get_max_backlight(dev); + if (props.max_brightness == 0) { + DRM_ERROR("Failed to get maximum backlight value\n"); + return -ENODEV; + } dev_priv->backlight = backlight_device_register("intel_backlight", &connector->kdev, dev, -- cgit v1.2.1 From 9fef76857feed8e94ca3a5ee37db644f04a9488b Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Mon, 3 Sep 2012 15:31:00 +0800 Subject: mISDN: fix possible memory leak in hfcmulti_init() hc has been allocated in this function and missing free it before leaving from some error handling cases. spatch with a semantic match is used to found this problem. (http://coccinelle.lip6.fr/) Signed-off-by: Wei Yongjun Signed-off-by: David S. Miller --- drivers/isdn/hardware/mISDN/hfcmulti.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/isdn/hardware/mISDN/hfcmulti.c b/drivers/isdn/hardware/mISDN/hfcmulti.c index 5e402cf2e795..f02794203bb1 100644 --- a/drivers/isdn/hardware/mISDN/hfcmulti.c +++ b/drivers/isdn/hardware/mISDN/hfcmulti.c @@ -5059,6 +5059,7 @@ hfcmulti_init(struct hm_map *m, struct pci_dev *pdev, printk(KERN_INFO "HFC-E1 #%d has overlapping B-channels on fragment #%d\n", E1_cnt + 1, pt); + kfree(hc); return -EINVAL; } maskcheck |= hc->bmask[pt]; @@ -5086,6 +5087,7 @@ hfcmulti_init(struct hm_map *m, struct pci_dev *pdev, if ((poll >> 1) > sizeof(hc->silence_data)) { printk(KERN_ERR "HFCMULTI error: silence_data too small, " "please fix\n"); + kfree(hc); return -EINVAL; } for (i = 0; i < (poll >> 1); i++) -- cgit v1.2.1 From 156bddd8e505b295540f3ca0e27dda68cb0d49aa Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Mon, 3 Sep 2012 16:50:42 +0200 Subject: ext3: Fix fdatasync() for files with only i_size changes Code tracking when transaction needs to be committed on fdatasync(2) forgets to handle a situation when only inode's i_size is changed. Thus in such situations fdatasync(2) doesn't force transaction with new i_size to disk and that can result in wrong i_size after a crash. Fix the issue by updating inode's i_datasync_tid whenever its size is updated. CC: # >= 2.6.32 Reported-by: Kristian Nielsen Signed-off-by: Jan Kara --- fs/ext3/inode.c | 17 ++++++++++++++--- 1 file changed, 14 insertions(+), 3 deletions(-) diff --git a/fs/ext3/inode.c b/fs/ext3/inode.c index a07597307fd1..ff574b4e345e 100644 --- a/fs/ext3/inode.c +++ b/fs/ext3/inode.c @@ -3072,6 +3072,8 @@ static int ext3_do_update_inode(handle_t *handle, struct ext3_inode_info *ei = EXT3_I(inode); struct buffer_head *bh = iloc->bh; int err = 0, rc, block; + int need_datasync = 0; + __le32 disksize; uid_t i_uid; gid_t i_gid; @@ -3113,7 +3115,11 @@ again: raw_inode->i_gid_high = 0; } raw_inode->i_links_count = cpu_to_le16(inode->i_nlink); - raw_inode->i_size = cpu_to_le32(ei->i_disksize); + disksize = cpu_to_le32(ei->i_disksize); + if (disksize != raw_inode->i_size) { + need_datasync = 1; + raw_inode->i_size = disksize; + } raw_inode->i_atime = cpu_to_le32(inode->i_atime.tv_sec); raw_inode->i_ctime = cpu_to_le32(inode->i_ctime.tv_sec); raw_inode->i_mtime = cpu_to_le32(inode->i_mtime.tv_sec); @@ -3129,8 +3135,11 @@ again: if (!S_ISREG(inode->i_mode)) { raw_inode->i_dir_acl = cpu_to_le32(ei->i_dir_acl); } else { - raw_inode->i_size_high = - cpu_to_le32(ei->i_disksize >> 32); + disksize = cpu_to_le32(ei->i_disksize >> 32); + if (disksize != raw_inode->i_size_high) { + raw_inode->i_size_high = disksize; + need_datasync = 1; + } if (ei->i_disksize > 0x7fffffffULL) { struct super_block *sb = inode->i_sb; if (!EXT3_HAS_RO_COMPAT_FEATURE(sb, @@ -3183,6 +3192,8 @@ again: ext3_clear_inode_state(inode, EXT3_STATE_NEW); atomic_set(&ei->i_sync_tid, handle->h_transaction->t_tid); + if (need_datasync) + atomic_set(&ei->i_datasync_tid, handle->h_transaction->t_tid); out_brelse: brelse (bh); ext3_std_error(inode->i_sb, err); -- cgit v1.2.1 From c303aa94cdae483a7577230e61720e126e600a52 Mon Sep 17 00:00:00 2001 From: Jesse Gross Date: Mon, 3 Sep 2012 19:06:27 -0700 Subject: openvswitch: Fix FLOW_BUFSIZE definition. The vlan encapsulation fields in the maximum flow defintion were never updated when the representation changed before upstreaming. In theory this could cause a kernel panic when a maximum length flow is used. In practice this has never happened (to my knowledge) because skb allocations are padded out to a cache line so you would need the right combination of flow and packet being sent to userspace. Signed-off-by: Jesse Gross --- net/openvswitch/flow.h | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/net/openvswitch/flow.h b/net/openvswitch/flow.h index 9b75617ca4e0..c30df1a10c67 100644 --- a/net/openvswitch/flow.h +++ b/net/openvswitch/flow.h @@ -145,15 +145,17 @@ u64 ovs_flow_used_time(unsigned long flow_jiffies); * OVS_KEY_ATTR_PRIORITY 4 -- 4 8 * OVS_KEY_ATTR_IN_PORT 4 -- 4 8 * OVS_KEY_ATTR_ETHERNET 12 -- 4 16 + * OVS_KEY_ATTR_ETHERTYPE 2 2 4 8 (outer VLAN ethertype) * OVS_KEY_ATTR_8021Q 4 -- 4 8 - * OVS_KEY_ATTR_ETHERTYPE 2 2 4 8 + * OVS_KEY_ATTR_ENCAP 0 -- 4 4 (VLAN encapsulation) + * OVS_KEY_ATTR_ETHERTYPE 2 2 4 8 (inner VLAN ethertype) * OVS_KEY_ATTR_IPV6 40 -- 4 44 * OVS_KEY_ATTR_ICMPV6 2 2 4 8 * OVS_KEY_ATTR_ND 28 -- 4 32 * ------------------------------------------------- - * total 132 + * total 144 */ -#define FLOW_BUFSIZE 132 +#define FLOW_BUFSIZE 144 int ovs_flow_to_nlattrs(const struct sw_flow_key *, struct sk_buff *); int ovs_flow_from_nlattrs(struct sw_flow_key *swkey, int *key_lenp, -- cgit v1.2.1 From f319da0c6894fcf55e21320e40506418a2aad629 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Mon, 20 Aug 2012 11:26:57 +0200 Subject: sched: Fix load avg vs cpu-hotplug Rabik and Paul reported two different issues related to the same few lines of code. Rabik's issue is that the nr_uninterruptible migration code is wrong in that he sees artifacts due to this (Rabik please do expand in more detail). Paul's issue is that this code as it stands relies on us using stop_machine() for unplug, we all would like to remove this assumption so that eventually we can remove this stop_machine() usage altogether. The only reason we'd have to migrate nr_uninterruptible is so that we could use for_each_online_cpu() loops in favour of for_each_possible_cpu() loops, however since nr_uninterruptible() is the only such loop and its using possible lets not bother at all. The problem Rabik sees is (probably) caused by the fact that by migrating nr_uninterruptible we screw rq->calc_load_active for both rqs involved. So don't bother with fancy migration schemes (meaning we now have to keep using for_each_possible_cpu()) and instead fold any nr_active delta after we migrate all tasks away to make sure we don't have any skewed nr_active accounting. Reported-by: Rakib Mullick Reported-by: Paul E. McKenney Signed-off-by: Peter Zijlstra Link: http://lkml.kernel.org/r/1345454817.23018.27.camel@twins Signed-off-by: Ingo Molnar --- kernel/sched/core.c | 31 ++++++++++--------------------- 1 file changed, 10 insertions(+), 21 deletions(-) diff --git a/kernel/sched/core.c b/kernel/sched/core.c index fbf1fd098dc6..207a81c769d4 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -5304,27 +5304,17 @@ void idle_task_exit(void) } /* - * While a dead CPU has no uninterruptible tasks queued at this point, - * it might still have a nonzero ->nr_uninterruptible counter, because - * for performance reasons the counter is not stricly tracking tasks to - * their home CPUs. So we just add the counter to another CPU's counter, - * to keep the global sum constant after CPU-down: - */ -static void migrate_nr_uninterruptible(struct rq *rq_src) -{ - struct rq *rq_dest = cpu_rq(cpumask_any(cpu_active_mask)); - - rq_dest->nr_uninterruptible += rq_src->nr_uninterruptible; - rq_src->nr_uninterruptible = 0; -} - -/* - * remove the tasks which were accounted by rq from calc_load_tasks. + * Since this CPU is going 'away' for a while, fold any nr_active delta + * we might have. Assumes we're called after migrate_tasks() so that the + * nr_active count is stable. + * + * Also see the comment "Global load-average calculations". */ -static void calc_global_load_remove(struct rq *rq) +static void calc_load_migrate(struct rq *rq) { - atomic_long_sub(rq->calc_load_active, &calc_load_tasks); - rq->calc_load_active = 0; + long delta = calc_load_fold_active(rq); + if (delta) + atomic_long_add(delta, &calc_load_tasks); } /* @@ -5618,8 +5608,7 @@ migration_call(struct notifier_block *nfb, unsigned long action, void *hcpu) BUG_ON(rq->nr_running != 1); /* the migration thread */ raw_spin_unlock_irqrestore(&rq->lock, flags); - migrate_nr_uninterruptible(rq); - calc_global_load_remove(rq); + calc_load_migrate(rq); break; #endif } -- cgit v1.2.1 From 749c8814f08f12baa4a9c2812a7c6ede7d69507d Mon Sep 17 00:00:00 2001 From: Charles Wang Date: Mon, 20 Aug 2012 16:02:33 +0800 Subject: sched: Add missing call to calc_load_exit_idle() Azat Khuzhin reported high loadavg in Linux v3.6 After checking the upstream scheduler code, I found Peter's commit: 5167e8d5417b sched/nohz: Rewrite and fix load-avg computation -- again not fully applied, missing the call to calc_load_exit_idle(). After that idle exit in sampling window will always be calculated to non-idle, and the load will be higher than normal. This patch adds the missing call to calc_load_exit_idle(). Signed-off-by: Charles Wang Cc: stable@kernel.org Signed-off-by: Peter Zijlstra Link: http://lkml.kernel.org/r/1345449754-27130-1-git-send-email-muming.wq@gmail.com Signed-off-by: Ingo Molnar --- kernel/time/tick-sched.c | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c index 024540f97f74..3a9e5d5c1091 100644 --- a/kernel/time/tick-sched.c +++ b/kernel/time/tick-sched.c @@ -573,6 +573,7 @@ static void tick_nohz_restart_sched_tick(struct tick_sched *ts, ktime_t now) tick_do_update_jiffies64(now); update_cpu_load_nohz(); + calc_load_exit_idle(); touch_softlockup_watchdog(); /* * Cancel the scheduled timer and restore the tick -- cgit v1.2.1 From a4c96ae319b8047f62dedbe1eac79e321c185749 Mon Sep 17 00:00:00 2001 From: Peter Boonstoppel Date: Thu, 9 Aug 2012 15:34:47 -0700 Subject: sched: Unthrottle rt runqueues in __disable_runtime() migrate_tasks() uses _pick_next_task_rt() to get tasks from the real-time runqueues to be migrated. When rt_rq is throttled _pick_next_task_rt() won't return anything, in which case migrate_tasks() can't move all threads over and gets stuck in an infinite loop. Instead unthrottle rt runqueues before migrating tasks. Additionally: move unthrottle_offline_cfs_rqs() to rq_offline_fair() Signed-off-by: Peter Boonstoppel Signed-off-by: Peter Zijlstra Cc: Paul Turner Link: http://lkml.kernel.org/r/5FBF8E85CA34454794F0F7ECBA79798F379D3648B7@HQMAIL04.nvidia.com Signed-off-by: Ingo Molnar --- kernel/sched/core.c | 3 --- kernel/sched/fair.c | 7 +++++-- kernel/sched/rt.c | 1 + kernel/sched/sched.h | 1 - 4 files changed, 6 insertions(+), 6 deletions(-) diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 207a81c769d4..a4ea245f3d85 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -5342,9 +5342,6 @@ static void migrate_tasks(unsigned int dead_cpu) */ rq->stop = NULL; - /* Ensure any throttled groups are reachable by pick_next_task */ - unthrottle_offline_cfs_rqs(rq); - for ( ; ; ) { /* * There's this thread running, bail when that's the only diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index c219bf8d704c..86ad83c45dae 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -2052,7 +2052,7 @@ static void destroy_cfs_bandwidth(struct cfs_bandwidth *cfs_b) hrtimer_cancel(&cfs_b->slack_timer); } -void unthrottle_offline_cfs_rqs(struct rq *rq) +static void unthrottle_offline_cfs_rqs(struct rq *rq) { struct cfs_rq *cfs_rq; @@ -2106,7 +2106,7 @@ static inline struct cfs_bandwidth *tg_cfs_bandwidth(struct task_group *tg) return NULL; } static inline void destroy_cfs_bandwidth(struct cfs_bandwidth *cfs_b) {} -void unthrottle_offline_cfs_rqs(struct rq *rq) {} +static inline void unthrottle_offline_cfs_rqs(struct rq *rq) {} #endif /* CONFIG_CFS_BANDWIDTH */ @@ -4956,6 +4956,9 @@ static void rq_online_fair(struct rq *rq) static void rq_offline_fair(struct rq *rq) { update_sysctl(); + + /* Ensure any throttled groups are reachable by pick_next_task */ + unthrottle_offline_cfs_rqs(rq); } #endif /* CONFIG_SMP */ diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c index 944cb68420e9..e0b7ba9c040f 100644 --- a/kernel/sched/rt.c +++ b/kernel/sched/rt.c @@ -691,6 +691,7 @@ balanced: * runtime - in which case borrowing doesn't make sense. */ rt_rq->rt_runtime = RUNTIME_INF; + rt_rq->rt_throttled = 0; raw_spin_unlock(&rt_rq->rt_runtime_lock); raw_spin_unlock(&rt_b->rt_runtime_lock); } diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h index f6714d009e77..0848fa36c383 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -1144,7 +1144,6 @@ extern void print_rt_stats(struct seq_file *m, int cpu); extern void init_cfs_rq(struct cfs_rq *cfs_rq); extern void init_rt_rq(struct rt_rq *rt_rq, struct rq *rq); -extern void unthrottle_offline_cfs_rqs(struct rq *rq); extern void account_cfs_bandwidth_used(int enabled, int was_enabled); -- cgit v1.2.1 From 9450d57eab5cad36774c297da123062744472588 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Sat, 18 Aug 2012 17:45:08 -0700 Subject: sched: Fix kernel-doc warnings in kernel/sched/fair.c Fix two kernel-doc warnings in kernel/sched/fair.c: Warning(kernel/sched/fair.c:3660): Excess function parameter 'cpus' description in 'update_sg_lb_stats' Warning(kernel/sched/fair.c:3806): Excess function parameter 'cpus' description in 'update_sd_lb_stats' Signed-off-by: Randy Dunlap Signed-off-by: Peter Zijlstra Link: http://lkml.kernel.org/r/50303714.3090204@xenotime.net Signed-off-by: Ingo Molnar --- kernel/sched/fair.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 86ad83c45dae..42d9df6a5ca4 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -3658,7 +3658,6 @@ fix_small_capacity(struct sched_domain *sd, struct sched_group *group) * @group: sched_group whose statistics are to be updated. * @load_idx: Load index of sched_domain of this_cpu for load calc. * @local_group: Does group contain this_cpu. - * @cpus: Set of cpus considered for load balancing. * @balance: Should we balance. * @sgs: variable to hold the statistics for this group. */ @@ -3805,7 +3804,6 @@ static bool update_sd_pick_busiest(struct lb_env *env, /** * update_sd_lb_stats - Update sched_domain's statistics for load balancing. * @env: The load balancing environment. - * @cpus: Set of cpus considered for load balancing. * @balance: Should we balance. * @sds: variable to hold the statistics for this sched_domain. */ -- cgit v1.2.1 From 749c59fd15b2c18dd6c15c353a899fb6ac49b865 Mon Sep 17 00:00:00 2001 From: Jamie Iles Date: Thu, 30 Aug 2012 11:32:13 +0100 Subject: KVM: PIC: fix use of uninitialised variable. Commit aea218f3cbbc (KVM: PIC: call ack notifiers for irqs that are dropped form irr) used an uninitialised variable to track whether an appropriate apic had been found. This could result in calling the ack notifier incorrectly. Cc: Gleb Natapov Cc: Avi Kivity Signed-off-by: Jamie Iles Signed-off-by: Avi Kivity --- arch/x86/kvm/i8259.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kvm/i8259.c b/arch/x86/kvm/i8259.c index e498b18f010c..9fc9aa7ac703 100644 --- a/arch/x86/kvm/i8259.c +++ b/arch/x86/kvm/i8259.c @@ -318,7 +318,7 @@ static void pic_ioport_write(void *opaque, u32 addr, u32 val) if (val & 0x10) { u8 edge_irr = s->irr & ~s->elcr; int i; - bool found; + bool found = false; struct kvm_vcpu *vcpu; s->init4 = val & 1; -- cgit v1.2.1 From 3d2abdfdf14f4d6decc2023708211e19b096f4ca Mon Sep 17 00:00:00 2001 From: Eliad Peller Date: Tue, 4 Sep 2012 17:44:45 +0300 Subject: mac80211: clear bssid on auth/assoc failure ifmgd->bssid wasn't cleared properly in some auth/assoc failure cases, causing mac80211 and the low-level driver to go out of sync. Clear ifmgd->bssid on failure, and notify the driver. Cc: stable@kernel.org # 3.4+ Signed-off-by: Eliad Peller Signed-off-by: Johannes Berg --- net/mac80211/mlme.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index a4a5acdbaa4d..f76b83341cf9 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -3248,6 +3248,8 @@ int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata, goto out_unlock; err_clear: + memset(ifmgd->bssid, 0, ETH_ALEN); + ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BSSID); ifmgd->auth_data = NULL; err_free: kfree(auth_data); @@ -3439,6 +3441,8 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, err = 0; goto out; err_clear: + memset(ifmgd->bssid, 0, ETH_ALEN); + ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BSSID); ifmgd->assoc_data = NULL; err_free: kfree(assoc_data); -- cgit v1.2.1 From a6fa941d94b411bbd2b6421ffbde6db3c93e65ab Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 20 Aug 2012 14:59:25 +0100 Subject: perf_event: Switch to internal refcount, fix race with close() Don't mess with file refcounts (or keep a reference to file, for that matter) in perf_event. Use explicit refcount of its own instead. Deal with the race between the final reference to event going away and new children getting created for it by use of atomic_long_inc_not_zero() in inherit_event(); just have the latter free what it had allocated and return NULL, that works out just fine (children of siblings of something doomed are created as singletons, same as if the child of leader had been created and immediately killed). Signed-off-by: Al Viro Cc: stable@kernel.org Signed-off-by: Peter Zijlstra Link: http://lkml.kernel.org/r/20120820135925.GG23464@ZenIV.linux.org.uk Signed-off-by: Ingo Molnar --- include/linux/perf_event.h | 2 +- kernel/events/core.c | 62 ++++++++++++++++++++++++---------------------- 2 files changed, 34 insertions(+), 30 deletions(-) diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index 7602ccb3f40e..ad04dfcd6f35 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -926,7 +926,7 @@ struct perf_event { struct hw_perf_event hw; struct perf_event_context *ctx; - struct file *filp; + atomic_long_t refcount; /* * These accumulate total time (in nanoseconds) that children diff --git a/kernel/events/core.c b/kernel/events/core.c index b7935fcec7d9..efef4282b8e8 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -2935,12 +2935,12 @@ EXPORT_SYMBOL_GPL(perf_event_release_kernel); /* * Called when the last reference to the file is gone. */ -static int perf_release(struct inode *inode, struct file *file) +static void put_event(struct perf_event *event) { - struct perf_event *event = file->private_data; struct task_struct *owner; - file->private_data = NULL; + if (!atomic_long_dec_and_test(&event->refcount)) + return; rcu_read_lock(); owner = ACCESS_ONCE(event->owner); @@ -2975,7 +2975,13 @@ static int perf_release(struct inode *inode, struct file *file) put_task_struct(owner); } - return perf_event_release_kernel(event); + perf_event_release_kernel(event); +} + +static int perf_release(struct inode *inode, struct file *file) +{ + put_event(file->private_data); + return 0; } u64 perf_event_read_value(struct perf_event *event, u64 *enabled, u64 *running) @@ -3227,7 +3233,7 @@ unlock: static const struct file_operations perf_fops; -static struct perf_event *perf_fget_light(int fd, int *fput_needed) +static struct file *perf_fget_light(int fd, int *fput_needed) { struct file *file; @@ -3241,7 +3247,7 @@ static struct perf_event *perf_fget_light(int fd, int *fput_needed) return ERR_PTR(-EBADF); } - return file->private_data; + return file; } static int perf_event_set_output(struct perf_event *event, @@ -3273,19 +3279,21 @@ static long perf_ioctl(struct file *file, unsigned int cmd, unsigned long arg) case PERF_EVENT_IOC_SET_OUTPUT: { + struct file *output_file = NULL; struct perf_event *output_event = NULL; int fput_needed = 0; int ret; if (arg != -1) { - output_event = perf_fget_light(arg, &fput_needed); - if (IS_ERR(output_event)) - return PTR_ERR(output_event); + output_file = perf_fget_light(arg, &fput_needed); + if (IS_ERR(output_file)) + return PTR_ERR(output_file); + output_event = output_file->private_data; } ret = perf_event_set_output(event, output_event); if (output_event) - fput_light(output_event->filp, fput_needed); + fput_light(output_file, fput_needed); return ret; } @@ -5950,6 +5958,7 @@ perf_event_alloc(struct perf_event_attr *attr, int cpu, mutex_init(&event->mmap_mutex); + atomic_long_set(&event->refcount, 1); event->cpu = cpu; event->attr = *attr; event->group_leader = group_leader; @@ -6260,12 +6269,12 @@ SYSCALL_DEFINE5(perf_event_open, return event_fd; if (group_fd != -1) { - group_leader = perf_fget_light(group_fd, &fput_needed); - if (IS_ERR(group_leader)) { - err = PTR_ERR(group_leader); + group_file = perf_fget_light(group_fd, &fput_needed); + if (IS_ERR(group_file)) { + err = PTR_ERR(group_file); goto err_fd; } - group_file = group_leader->filp; + group_leader = group_file->private_data; if (flags & PERF_FLAG_FD_OUTPUT) output_event = group_leader; if (flags & PERF_FLAG_FD_NO_GROUP) @@ -6402,7 +6411,6 @@ SYSCALL_DEFINE5(perf_event_open, put_ctx(gctx); } - event->filp = event_file; WARN_ON_ONCE(ctx->parent_ctx); mutex_lock(&ctx->mutex); @@ -6496,7 +6504,6 @@ perf_event_create_kernel_counter(struct perf_event_attr *attr, int cpu, goto err_free; } - event->filp = NULL; WARN_ON_ONCE(ctx->parent_ctx); mutex_lock(&ctx->mutex); perf_install_in_context(ctx, event, cpu); @@ -6578,7 +6585,7 @@ static void sync_child_event(struct perf_event *child_event, * Release the parent event, if this was the last * reference to it. */ - fput(parent_event->filp); + put_event(parent_event); } static void @@ -6654,9 +6661,8 @@ static void perf_event_exit_task_context(struct task_struct *child, int ctxn) * * __perf_event_exit_task() * sync_child_event() - * fput(parent_event->filp) - * perf_release() - * mutex_lock(&ctx->mutex) + * put_event() + * mutex_lock(&ctx->mutex) * * But since its the parent context it won't be the same instance. */ @@ -6724,7 +6730,7 @@ static void perf_free_event(struct perf_event *event, list_del_init(&event->child_list); mutex_unlock(&parent->child_mutex); - fput(parent->filp); + put_event(parent); perf_group_detach(event); list_del_event(event, ctx); @@ -6804,6 +6810,12 @@ inherit_event(struct perf_event *parent_event, NULL, NULL); if (IS_ERR(child_event)) return child_event; + + if (!atomic_long_inc_not_zero(&parent_event->refcount)) { + free_event(child_event); + return NULL; + } + get_ctx(child_ctx); /* @@ -6844,14 +6856,6 @@ inherit_event(struct perf_event *parent_event, add_event_to_ctx(child_event, child_ctx); raw_spin_unlock_irqrestore(&child_ctx->lock, flags); - /* - * Get a reference to the parent filp - we will fput it - * when the child event exits. This is safe to do because - * we are in the parent and we know that the filp still - * exists and has a nonzero count: - */ - atomic_long_inc(&parent_event->filp->f_count); - /* * Link this into the parent event's child list */ -- cgit v1.2.1 From 3ec18cd8b8f8395d0df604c62ab3bc2cf3a966b4 Mon Sep 17 00:00:00 2001 From: Stephane Eranian Date: Mon, 20 Aug 2012 11:24:21 +0200 Subject: perf/x86: Enable Intel Cedarview Atom suppport This patch enables perf_events support for Intel Cedarview Atom (model 54) processors. Support includes PEBS and LBR. Tested on my Atom N2600 netbook. Signed-off-by: Stephane Eranian Signed-off-by: Peter Zijlstra Link: http://lkml.kernel.org/r/20120820092421.GA11284@quad Signed-off-by: Ingo Molnar --- arch/x86/kernel/cpu/perf_event_intel.c | 1 + arch/x86/kernel/cpu/perf_event_intel_lbr.c | 3 ++- 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/x86/kernel/cpu/perf_event_intel.c b/arch/x86/kernel/cpu/perf_event_intel.c index 7f2739e03e79..0d3d63afa76a 100644 --- a/arch/x86/kernel/cpu/perf_event_intel.c +++ b/arch/x86/kernel/cpu/perf_event_intel.c @@ -2008,6 +2008,7 @@ __init int intel_pmu_init(void) break; case 28: /* Atom */ + case 54: /* Cedariew */ memcpy(hw_cache_event_ids, atom_hw_cache_event_ids, sizeof(hw_cache_event_ids)); diff --git a/arch/x86/kernel/cpu/perf_event_intel_lbr.c b/arch/x86/kernel/cpu/perf_event_intel_lbr.c index 520b4265fcd2..da02e9cc3754 100644 --- a/arch/x86/kernel/cpu/perf_event_intel_lbr.c +++ b/arch/x86/kernel/cpu/perf_event_intel_lbr.c @@ -686,7 +686,8 @@ void intel_pmu_lbr_init_atom(void) * to have an operational LBR which can freeze * on PMU interrupt */ - if (boot_cpu_data.x86_mask < 10) { + if (boot_cpu_data.x86_model == 28 + && boot_cpu_data.x86_mask < 10) { pr_cont("LBR disabled due to erratum"); return; } -- cgit v1.2.1 From 500ad2d8b01390c98bc6dce068bccfa9534b8212 Mon Sep 17 00:00:00 2001 From: "K.Prasad" Date: Thu, 2 Aug 2012 13:46:35 +0530 Subject: perf/hwpb: Invoke __perf_event_disable() if interrupts are already disabled While debugging a warning message on PowerPC while using hardware breakpoints, it was discovered that when perf_event_disable is invoked through hw_breakpoint_handler function with interrupts disabled, a subsequent IPI in the code path would trigger a WARN_ON_ONCE message in smp_call_function_single function. This patch calls __perf_event_disable() when interrupts are already disabled, instead of perf_event_disable(). Reported-by: Edjunior Barbosa Machado Signed-off-by: K.Prasad [naveen.n.rao@linux.vnet.ibm.com: v3: Check to make sure we target current task] Signed-off-by: Naveen N. Rao Acked-by: Frederic Weisbecker Signed-off-by: Peter Zijlstra Link: http://lkml.kernel.org/r/20120802081635.5811.17737.stgit@localhost.localdomain [ Fixed build error on MIPS. ] Signed-off-by: Ingo Molnar --- include/linux/perf_event.h | 2 ++ kernel/events/core.c | 2 +- kernel/events/hw_breakpoint.c | 11 ++++++++++- 3 files changed, 13 insertions(+), 2 deletions(-) diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index ad04dfcd6f35..33ed9d605f91 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -1296,6 +1296,7 @@ extern int perf_swevent_get_recursion_context(void); extern void perf_swevent_put_recursion_context(int rctx); extern void perf_event_enable(struct perf_event *event); extern void perf_event_disable(struct perf_event *event); +extern int __perf_event_disable(void *info); extern void perf_event_task_tick(void); #else static inline void @@ -1334,6 +1335,7 @@ static inline int perf_swevent_get_recursion_context(void) { return -1; } static inline void perf_swevent_put_recursion_context(int rctx) { } static inline void perf_event_enable(struct perf_event *event) { } static inline void perf_event_disable(struct perf_event *event) { } +static inline int __perf_event_disable(void *info) { return -1; } static inline void perf_event_task_tick(void) { } #endif diff --git a/kernel/events/core.c b/kernel/events/core.c index efef4282b8e8..7fee567153f0 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -1253,7 +1253,7 @@ retry: /* * Cross CPU call to disable a performance event */ -static int __perf_event_disable(void *info) +int __perf_event_disable(void *info) { struct perf_event *event = info; struct perf_event_context *ctx = event->ctx; diff --git a/kernel/events/hw_breakpoint.c b/kernel/events/hw_breakpoint.c index bb38c4d3ee12..9a7b487c6fe2 100644 --- a/kernel/events/hw_breakpoint.c +++ b/kernel/events/hw_breakpoint.c @@ -453,7 +453,16 @@ int modify_user_hw_breakpoint(struct perf_event *bp, struct perf_event_attr *att int old_type = bp->attr.bp_type; int err = 0; - perf_event_disable(bp); + /* + * modify_user_hw_breakpoint can be invoked with IRQs disabled and hence it + * will not be possible to raise IPIs that invoke __perf_event_disable. + * So call the function directly after making sure we are targeting the + * current task. + */ + if (irqs_disabled() && bp->ctx && bp->ctx->task == current) + __perf_event_disable(bp); + else + perf_event_disable(bp); bp->attr.bp_addr = attr->bp_addr; bp->attr.bp_type = attr->bp_type; -- cgit v1.2.1 From b4e4f47e940bc93c5b1125a4429ff53956754800 Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Sun, 2 Sep 2012 21:41:04 +0800 Subject: nl80211: fix possible memory leak nl80211_connect() connkeys is malloced in nl80211_parse_connkeys() and should be freed in the error handling case, otherwise it will cause memory leak. spatch with a semantic match is used to found this problem. (http://coccinelle.lip6.fr/) Signed-off-by: Wei Yongjun Signed-off-by: Johannes Berg --- net/wireless/nl80211.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 97026f3b215a..1e37dbf00cb3 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -5633,8 +5633,10 @@ static int nl80211_connect(struct sk_buff *skb, struct genl_info *info) sizeof(connect.ht_capa_mask)); if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) { - if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) + if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) { + kfree(connkeys); return -EINVAL; + } memcpy(&connect.ht_capa, nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]), sizeof(connect.ht_capa)); -- cgit v1.2.1 From c9e67d483776d8d2a5f3f70491161b205930ffe1 Mon Sep 17 00:00:00 2001 From: Miklos Szeredi Date: Tue, 4 Sep 2012 18:45:54 +0200 Subject: fuse: fix retrieve length In some cases fuse_retrieve() would return a short byte count if offset was non-zero. The data returned was correct, though. Signed-off-by: Miklos Szeredi Cc: stable@vger.kernel.org --- fs/fuse/dev.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c index 7df2b5e8fbe1..f4246cfc8d87 100644 --- a/fs/fuse/dev.c +++ b/fs/fuse/dev.c @@ -1576,6 +1576,7 @@ static int fuse_retrieve(struct fuse_conn *fc, struct inode *inode, req->pages[req->num_pages] = page; req->num_pages++; + offset = 0; num -= this_num; total_len += this_num; index++; -- cgit v1.2.1 From 6cf5c951175abcec4da470c50565cc0afe6cd11d Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Tue, 4 Sep 2012 04:13:18 +0000 Subject: netrom: copy_datagram_iovec can fail Check for an error from this and if so bail properly. Signed-off-by: Alan Cox Signed-off-by: David S. Miller --- net/netrom/af_netrom.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c index 06592d8b4a2b..1b9024ee963c 100644 --- a/net/netrom/af_netrom.c +++ b/net/netrom/af_netrom.c @@ -1169,7 +1169,12 @@ static int nr_recvmsg(struct kiocb *iocb, struct socket *sock, msg->msg_flags |= MSG_TRUNC; } - skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied); + er = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied); + if (er < 0) { + skb_free_datagram(sk, skb); + release_sock(sk); + return er; + } if (sax != NULL) { sax->sax25_family = AF_NETROM; -- cgit v1.2.1 From 37159ef2c1ae1e696b24b260b241209a19f92c60 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Tue, 4 Sep 2012 07:18:57 +0000 Subject: l2tp: fix a lockdep splat Fixes following lockdep splat : [ 1614.734896] ============================================= [ 1614.734898] [ INFO: possible recursive locking detected ] [ 1614.734901] 3.6.0-rc3+ #782 Not tainted [ 1614.734903] --------------------------------------------- [ 1614.734905] swapper/11/0 is trying to acquire lock: [ 1614.734907] (slock-AF_INET){+.-...}, at: [] l2tp_xmit_skb+0x172/0xa50 [l2tp_core] [ 1614.734920] [ 1614.734920] but task is already holding lock: [ 1614.734922] (slock-AF_INET){+.-...}, at: [] tcp_v4_err+0x163/0x6b0 [ 1614.734932] [ 1614.734932] other info that might help us debug this: [ 1614.734935] Possible unsafe locking scenario: [ 1614.734935] [ 1614.734937] CPU0 [ 1614.734938] ---- [ 1614.734940] lock(slock-AF_INET); [ 1614.734943] lock(slock-AF_INET); [ 1614.734946] [ 1614.734946] *** DEADLOCK *** [ 1614.734946] [ 1614.734949] May be due to missing lock nesting notation [ 1614.734949] [ 1614.734952] 7 locks held by swapper/11/0: [ 1614.734954] #0: (rcu_read_lock){.+.+..}, at: [] __netif_receive_skb+0x251/0xd00 [ 1614.734964] #1: (rcu_read_lock){.+.+..}, at: [] ip_local_deliver_finish+0x4c/0x4e0 [ 1614.734972] #2: (rcu_read_lock){.+.+..}, at: [] icmp_socket_deliver+0x46/0x230 [ 1614.734982] #3: (slock-AF_INET){+.-...}, at: [] tcp_v4_err+0x163/0x6b0 [ 1614.734989] #4: (rcu_read_lock){.+.+..}, at: [] ip_queue_xmit+0x0/0x680 [ 1614.734997] #5: (rcu_read_lock_bh){.+....}, at: [] ip_finish_output+0x135/0x890 [ 1614.735004] #6: (rcu_read_lock_bh){.+....}, at: [] dev_queue_xmit+0x0/0xe00 [ 1614.735012] [ 1614.735012] stack backtrace: [ 1614.735016] Pid: 0, comm: swapper/11 Not tainted 3.6.0-rc3+ #782 [ 1614.735018] Call Trace: [ 1614.735020] [] __lock_acquire+0x144c/0x1b10 [ 1614.735033] [] ? check_usage+0x9b/0x4d0 [ 1614.735037] [] ? mark_held_locks+0x82/0x130 [ 1614.735042] [] lock_acquire+0x90/0x200 [ 1614.735047] [] ? l2tp_xmit_skb+0x172/0xa50 [l2tp_core] [ 1614.735051] [] ? trace_hardirqs_on+0xd/0x10 [ 1614.735060] [] _raw_spin_lock+0x41/0x50 [ 1614.735065] [] ? l2tp_xmit_skb+0x172/0xa50 [l2tp_core] [ 1614.735069] [] l2tp_xmit_skb+0x172/0xa50 [l2tp_core] [ 1614.735075] [] l2tp_eth_dev_xmit+0x32/0x60 [l2tp_eth] [ 1614.735079] [] dev_hard_start_xmit+0x502/0xa70 [ 1614.735083] [] ? dev_hard_start_xmit+0x5e/0xa70 [ 1614.735087] [] ? dev_queue_xmit+0x141/0xe00 [ 1614.735093] [] sch_direct_xmit+0xfe/0x290 [ 1614.735098] [] dev_queue_xmit+0x1e5/0xe00 [ 1614.735102] [] ? dev_hard_start_xmit+0xa70/0xa70 [ 1614.735106] [] ? eth_header+0x3a/0xf0 [ 1614.735111] [] ? fib_get_table+0x2e/0x280 [ 1614.735117] [] arp_xmit+0x22/0x60 [ 1614.735121] [] arp_send+0x43/0x50 [ 1614.735125] [] arp_solicit+0x18f/0x450 [ 1614.735132] [] neigh_probe+0x4a/0x70 [ 1614.735137] [] __neigh_event_send+0xea/0x300 [ 1614.735141] [] neigh_resolve_output+0x163/0x260 [ 1614.735146] [] ip_finish_output+0x505/0x890 [ 1614.735150] [] ? ip_finish_output+0x135/0x890 [ 1614.735154] [] ip_output+0x59/0xf0 [ 1614.735158] [] ip_local_out+0x2d/0xa0 [ 1614.735162] [] ip_queue_xmit+0x1c3/0x680 [ 1614.735165] [] ? ip_local_out+0xa0/0xa0 [ 1614.735172] [] tcp_transmit_skb+0x402/0xa60 [ 1614.735177] [] tcp_retransmit_skb+0x1a1/0x620 [ 1614.735181] [] tcp_retransmit_timer+0x393/0x960 [ 1614.735185] [] ? tcp_v4_err+0x163/0x6b0 [ 1614.735189] [] tcp_v4_err+0x657/0x6b0 [ 1614.735194] [] ? icmp_socket_deliver+0x46/0x230 [ 1614.735199] [] icmp_socket_deliver+0xce/0x230 [ 1614.735203] [] ? icmp_socket_deliver+0x46/0x230 [ 1614.735208] [] icmp_unreach+0xe4/0x2c0 [ 1614.735213] [] icmp_rcv+0x350/0x4a0 [ 1614.735217] [] ip_local_deliver_finish+0x135/0x4e0 [ 1614.735221] [] ? ip_local_deliver_finish+0x4c/0x4e0 [ 1614.735225] [] ip_local_deliver+0x4a/0x90 [ 1614.735229] [] ip_rcv_finish+0x187/0x730 [ 1614.735233] [] ip_rcv+0x21d/0x300 [ 1614.735237] [] __netif_receive_skb+0x46b/0xd00 [ 1614.735241] [] ? __netif_receive_skb+0x251/0xd00 [ 1614.735245] [] process_backlog+0xb8/0x180 [ 1614.735249] [] net_rx_action+0x159/0x330 [ 1614.735257] [] __do_softirq+0xd0/0x3e0 [ 1614.735264] [] ? tick_program_event+0x24/0x30 [ 1614.735270] [] call_softirq+0x1c/0x30 [ 1614.735278] [] do_softirq+0x8d/0xc0 [ 1614.735282] [] irq_exit+0xae/0xe0 [ 1614.735287] [] smp_apic_timer_interrupt+0x6e/0x99 [ 1614.735291] [] apic_timer_interrupt+0x6c/0x80 [ 1614.735293] [] ? trace_hardirqs_off+0xd/0x10 [ 1614.735306] [] ? intel_idle+0xf5/0x150 [ 1614.735310] [] ? intel_idle+0xee/0x150 [ 1614.735317] [] cpuidle_enter+0x19/0x20 [ 1614.735321] [] cpuidle_idle_call+0xa8/0x630 [ 1614.735327] [] cpu_idle+0x8a/0xe0 [ 1614.735333] [] start_secondary+0x220/0x222 Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- net/l2tp/l2tp_core.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/net/l2tp/l2tp_core.c b/net/l2tp/l2tp_core.c index 513cab08a986..1a9f3723c13c 100644 --- a/net/l2tp/l2tp_core.c +++ b/net/l2tp/l2tp_core.c @@ -1501,6 +1501,8 @@ out: return err; } +static struct lock_class_key l2tp_socket_class; + int l2tp_tunnel_create(struct net *net, int fd, int version, u32 tunnel_id, u32 peer_tunnel_id, struct l2tp_tunnel_cfg *cfg, struct l2tp_tunnel **tunnelp) { struct l2tp_tunnel *tunnel = NULL; @@ -1605,6 +1607,8 @@ int l2tp_tunnel_create(struct net *net, int fd, int version, u32 tunnel_id, u32 tunnel->old_sk_destruct = sk->sk_destruct; sk->sk_destruct = &l2tp_tunnel_destruct; tunnel->sock = sk; + lockdep_set_class_and_name(&sk->sk_lock.slock, &l2tp_socket_class, "l2tp_sock"); + sk->sk_allocation = GFP_ATOMIC; /* Add tunnel to our list */ -- cgit v1.2.1 From 3b59df46a449ec9975146d71318c4777ad086744 Mon Sep 17 00:00:00 2001 From: Steffen Klassert Date: Tue, 4 Sep 2012 00:03:29 +0000 Subject: xfrm: Workaround incompatibility of ESN and async crypto ESN for esp is defined in RFC 4303. This RFC assumes that the sequence number counters are always up to date. However, this is not true if an async crypto algorithm is employed. If the sequence number counters are not up to date on sequence number check, we may incorrectly update the upper 32 bit of the sequence number. This leads to a DOS. We workaround this by comparing the upper sequence number, (used for authentication) with the upper sequence number computed after the async processing. We drop the packet if these numbers are different. To do this, we introduce a recheck function that does this check in the ESN case. Signed-off-by: Steffen Klassert Acked-by: Herbert Xu Signed-off-by: David S. Miller --- include/net/xfrm.h | 3 +++ net/xfrm/xfrm_input.c | 2 +- net/xfrm/xfrm_replay.c | 15 +++++++++++++++ 3 files changed, 19 insertions(+), 1 deletion(-) diff --git a/include/net/xfrm.h b/include/net/xfrm.h index 976a81abe1a2..639dd1316d37 100644 --- a/include/net/xfrm.h +++ b/include/net/xfrm.h @@ -273,6 +273,9 @@ struct xfrm_replay { int (*check)(struct xfrm_state *x, struct sk_buff *skb, __be32 net_seq); + int (*recheck)(struct xfrm_state *x, + struct sk_buff *skb, + __be32 net_seq); void (*notify)(struct xfrm_state *x, int event); int (*overflow)(struct xfrm_state *x, struct sk_buff *skb); }; diff --git a/net/xfrm/xfrm_input.c b/net/xfrm/xfrm_input.c index 54a0dc2e2f8d..ab2bb42fe094 100644 --- a/net/xfrm/xfrm_input.c +++ b/net/xfrm/xfrm_input.c @@ -212,7 +212,7 @@ resume: /* only the first xfrm gets the encap type */ encap_type = 0; - if (async && x->repl->check(x, skb, seq)) { + if (async && x->repl->recheck(x, skb, seq)) { XFRM_INC_STATS(net, LINUX_MIB_XFRMINSTATESEQERROR); goto drop_unlock; } diff --git a/net/xfrm/xfrm_replay.c b/net/xfrm/xfrm_replay.c index 2f6d11d04a2b..3efb07d3eb27 100644 --- a/net/xfrm/xfrm_replay.c +++ b/net/xfrm/xfrm_replay.c @@ -420,6 +420,18 @@ err: return -EINVAL; } +static int xfrm_replay_recheck_esn(struct xfrm_state *x, + struct sk_buff *skb, __be32 net_seq) +{ + if (unlikely(XFRM_SKB_CB(skb)->seq.input.hi != + htonl(xfrm_replay_seqhi(x, net_seq)))) { + x->stats.replay_window++; + return -EINVAL; + } + + return xfrm_replay_check_esn(x, skb, net_seq); +} + static void xfrm_replay_advance_esn(struct xfrm_state *x, __be32 net_seq) { unsigned int bitnr, nr, i; @@ -479,6 +491,7 @@ static void xfrm_replay_advance_esn(struct xfrm_state *x, __be32 net_seq) static struct xfrm_replay xfrm_replay_legacy = { .advance = xfrm_replay_advance, .check = xfrm_replay_check, + .recheck = xfrm_replay_check, .notify = xfrm_replay_notify, .overflow = xfrm_replay_overflow, }; @@ -486,6 +499,7 @@ static struct xfrm_replay xfrm_replay_legacy = { static struct xfrm_replay xfrm_replay_bmp = { .advance = xfrm_replay_advance_bmp, .check = xfrm_replay_check_bmp, + .recheck = xfrm_replay_check_bmp, .notify = xfrm_replay_notify_bmp, .overflow = xfrm_replay_overflow_bmp, }; @@ -493,6 +507,7 @@ static struct xfrm_replay xfrm_replay_bmp = { static struct xfrm_replay xfrm_replay_esn = { .advance = xfrm_replay_advance_esn, .check = xfrm_replay_check_esn, + .recheck = xfrm_replay_recheck_esn, .notify = xfrm_replay_notify_bmp, .overflow = xfrm_replay_overflow_esn, }; -- cgit v1.2.1 From cadf84bfeb80e216fde328d357fe856160157d2c Mon Sep 17 00:00:00 2001 From: Ian Abbott Date: Mon, 3 Sep 2012 16:39:38 +0100 Subject: staging: comedi: amplc_pci224: Fix PCI ref count When attaching a PCI device manually via the comedi driver `attach` hook (`pci224_attach()`) (called by the comedi core for the `COMEDI_DEVCONFIG` ioctl), its reference count is incremented in the `for_each_pci_dev` loop (in `pci224_find_pci_dev()`). It is decremented when the `detach` hook (`pci224_detach()`) is called to detach the device. However, when the PCI device is attached automatically via the `attach_pci` hook (`pci224_attach_pci()`, called at probe time via `comedi_pci_auto_config()`) it's reference count is not incremented so there will be an unmatched decrement when detaching the device. Increment the PCI device reference count in `pci224_attach_pci()` to correct the mismatch. Once support for manual configuration has been removed from this driver, the calls to `pci_dev_get()` and `pci_dev_put()` can be removed. Cc: stable # 3.5.x Signed-off-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman --- drivers/staging/comedi/drivers/amplc_pci224.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/staging/comedi/drivers/amplc_pci224.c b/drivers/staging/comedi/drivers/amplc_pci224.c index 4e17f13e57f6..8bf109e7bb05 100644 --- a/drivers/staging/comedi/drivers/amplc_pci224.c +++ b/drivers/staging/comedi/drivers/amplc_pci224.c @@ -1503,6 +1503,13 @@ pci224_attach_pci(struct comedi_device *dev, struct pci_dev *pci_dev) DRIVER_NAME ": BUG! cannot determine board type!\n"); return -EINVAL; } + /* + * Need to 'get' the PCI device to match the 'put' in pci224_detach(). + * TODO: Remove the pci_dev_get() and matching pci_dev_put() once + * support for manual attachment of PCI devices via pci224_attach() + * has been removed. + */ + pci_dev_get(pci_dev); return pci224_attach_common(dev, pci_dev, NULL); } -- cgit v1.2.1 From 1a6671d208bb8f558dc12b6a7d2f55e80cf5828d Mon Sep 17 00:00:00 2001 From: Ian Abbott Date: Mon, 3 Sep 2012 16:39:39 +0100 Subject: staging: comedi: amplc_dio200: Fix PCI ref count When attaching a PCI device manually via the comedi driver `attach` hook (`dio200_attach()`) (called by the comedi core for the `COMEDI_DEVCONFIG` ioctl), its reference count is incremented in the `for_each_pci_dev` loop (in `dio200_find_pci_dev()`). It is decremented when the `detach` hook (`dio200_detach()`) is called to detach the device. However, when the PCI device is attached automatically via the `attach_pci` hook (`dio200_attach_pci()`, called at probe time via `comedi_pci_auto_config()`) it's reference count is not incremented so there will be an unmatched decrement when detaching the device. Increment the PCI device reference count in `dio200_attach_pci()` to correct the mismatch. Once support for manual configuration has been removed from this driver, the calls to `pci_dev_get()` and `pci_dev_put()` can be removed. Signed-off-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman --- drivers/staging/comedi/drivers/amplc_dio200.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/staging/comedi/drivers/amplc_dio200.c b/drivers/staging/comedi/drivers/amplc_dio200.c index 6c81e377262c..cc8931fde839 100644 --- a/drivers/staging/comedi/drivers/amplc_dio200.c +++ b/drivers/staging/comedi/drivers/amplc_dio200.c @@ -1412,6 +1412,13 @@ static int __devinit dio200_attach_pci(struct comedi_device *dev, dev_err(dev->class_dev, "BUG! cannot determine board type!\n"); return -EINVAL; } + /* + * Need to 'get' the PCI device to match the 'put' in dio200_detach(). + * TODO: Remove the pci_dev_get() and matching pci_dev_put() once + * support for manual attachment of PCI devices via dio200_attach() + * has been removed. + */ + pci_dev_get(pci_dev); return dio200_pci_common_attach(dev, pci_dev); } -- cgit v1.2.1 From 3abcfe0eeda850481143d05bdd206dd2b170d07d Mon Sep 17 00:00:00 2001 From: Ian Abbott Date: Mon, 3 Sep 2012 16:39:40 +0100 Subject: staging: comedi: amplc_pc236: Fix PCI ref count When attaching a PCI device manually via the comedi driver `attach` hook (`pc236_attach()`) (called by the comedi core for the `COMEDI_DEVCONFIG` ioctl), its reference count is incremented in the `for_each_pci_dev` loop (in `pc236_find_pci_dev()`). It is decremented when the `detach` hook (`pc236_detach()`) is called to detach the device. However, when the PCI device is attached automatically via the `attach_pci` hook (`pc236_attach_pci()`, called at probe time via `comedi_pci_auto_config()`) it's reference count is not incremented so there will be an unmatched decrement when detaching the device. Increment the PCI device reference count in `pc236_attach_pci()` to correct the mismatch. Once support for manual configuration has been removed from this driver, the calls to `pci_dev_get()` and `pci_dev_put()` can be removed. Signed-off-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman --- drivers/staging/comedi/drivers/amplc_pc236.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/staging/comedi/drivers/amplc_pc236.c b/drivers/staging/comedi/drivers/amplc_pc236.c index aabba9886b7d..f50287903038 100644 --- a/drivers/staging/comedi/drivers/amplc_pc236.c +++ b/drivers/staging/comedi/drivers/amplc_pc236.c @@ -565,6 +565,13 @@ static int __devinit pc236_attach_pci(struct comedi_device *dev, dev_err(dev->class_dev, "BUG! cannot determine board type!\n"); return -EINVAL; } + /* + * Need to 'get' the PCI device to match the 'put' in pc236_detach(). + * TODO: Remove the pci_dev_get() and matching pci_dev_put() once + * support for manual attachment of PCI devices via pc236_attach() + * has been removed. + */ + pci_dev_get(pci_dev); return pc236_pci_common_attach(dev, pci_dev); } -- cgit v1.2.1 From a0234ade63ce2c14841d9d6e802ed735b4ed2829 Mon Sep 17 00:00:00 2001 From: Ian Abbott Date: Mon, 3 Sep 2012 16:39:41 +0100 Subject: staging: comedi: amplc_pc263: Fix PCI ref count When attaching a PCI device manually via the comedi driver `attach` hook (`pc263_attach()`) (called by the comedi core for the `COMEDI_DEVCONFIG` ioctl), its reference count is incremented in the `for_each_pci_dev` loop (in `pc263_find_pci_dev()`). It is decremented when the `detach` hook (`pc263_detach()`) is called to detach the device. However, when the PCI device is attached automatically via the `attach_pci` hook (`pc263_attach_pci()`, called at probe time via `comedi_pci_auto_config()`) it's reference count is not incremented so there will be an unmatched decrement when detaching the device. Increment the PCI device reference count in `pc263_attach_pci()` to correct the mismatch. Once support for manual configuration has been removed from this driver, the calls to `pci_dev_get()` and `pci_dev_put()` can be removed. Signed-off-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman --- drivers/staging/comedi/drivers/amplc_pc263.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/staging/comedi/drivers/amplc_pc263.c b/drivers/staging/comedi/drivers/amplc_pc263.c index 40ec1ffebba6..8191c4e28e0a 100644 --- a/drivers/staging/comedi/drivers/amplc_pc263.c +++ b/drivers/staging/comedi/drivers/amplc_pc263.c @@ -298,6 +298,13 @@ static int __devinit pc263_attach_pci(struct comedi_device *dev, dev_err(dev->class_dev, "BUG! cannot determine board type!\n"); return -EINVAL; } + /* + * Need to 'get' the PCI device to match the 'put' in pc263_detach(). + * TODO: Remove the pci_dev_get() and matching pci_dev_put() once + * support for manual attachment of PCI devices via pc263_attach() + * has been removed. + */ + pci_dev_get(pci_dev); return pc263_pci_common_attach(dev, pci_dev); } -- cgit v1.2.1 From 4375e61ed21d629fe922b3e5591ad6588f715137 Mon Sep 17 00:00:00 2001 From: Ian Abbott Date: Mon, 3 Sep 2012 16:39:42 +0100 Subject: staging: comedi: amplc_pci230: Fix PCI ref count When attaching a PCI device manually via the comedi driver `attach` hook (`pci230_attach()`) (called by the comedi core for the `COMEDI_DEVCONFIG` ioctl), its reference count is incremented in the `for_each_pci_dev` loop (in `pci230_find_pci_dev()`). It is decremented when the `detach` hook (`pci230_detach()`) is called to detach the device. However, when the PCI device is attached automatically via the `attach_pci` hook (`pci230_attach_pci()`, called at probe time via `comedi_pci_auto_config()`) it's reference count is not incremented so there will be an unmatched decrement when detaching the device. Increment the PCI device reference count in `pci230_attach_pci()` to correct the mismatch. Once support for manual configuration has been removed from this driver, the calls to `pci_dev_get()` and `pci_dev_put()` can be removed. Signed-off-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman --- drivers/staging/comedi/drivers/amplc_pci230.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/staging/comedi/drivers/amplc_pci230.c b/drivers/staging/comedi/drivers/amplc_pci230.c index 1b67d0c61fa7..66e74bd12267 100644 --- a/drivers/staging/comedi/drivers/amplc_pci230.c +++ b/drivers/staging/comedi/drivers/amplc_pci230.c @@ -2925,6 +2925,13 @@ static int __devinit pci230_attach_pci(struct comedi_device *dev, "amplc_pci230: BUG! cannot determine board type!\n"); return -EINVAL; } + /* + * Need to 'get' the PCI device to match the 'put' in pci230_detach(). + * TODO: Remove the pci_dev_get() and matching pci_dev_put() once + * support for manual attachment of PCI devices via pci230_attach() + * has been removed. + */ + pci_dev_get(pci_dev); return pci230_attach_common(dev, pci_dev); } -- cgit v1.2.1 From 4a7a4f95a5e15648f24a971b36b82adc36d2cb6b Mon Sep 17 00:00:00 2001 From: Ian Abbott Date: Mon, 3 Sep 2012 16:39:43 +0100 Subject: staging: comedi: das08: Fix PCI ref count When attaching a PCI device manually via the comedi driver `attach` hook (`das08_attach()`) (called by the comedi core for the `COMEDI_DEVCONFIG` ioctl), its reference count is incremented in the `for_each_pci_dev` loop (in `das08_find_pci()`). It is decremented when the `detach` hook (`das08_detach()`) is called to detach the device. However, when the PCI device is attached automatically via the `attach_pci` hook (`das08_attach_pci()`, called at probe time via `comedi_pci_auto_config()`) it's reference count is not incremented so there will be an unmatched decrement when detaching the device. Increment the PCI device reference count in `das08_attach_pci()` to correct the mismatch. Once support for manual configuration has been removed from this driver, the calls to `pci_dev_get()` and `pci_dev_put()` can be removed. Signed-off-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman --- drivers/staging/comedi/drivers/das08.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/staging/comedi/drivers/das08.c b/drivers/staging/comedi/drivers/das08.c index 874e02e47668..c5676e267518 100644 --- a/drivers/staging/comedi/drivers/das08.c +++ b/drivers/staging/comedi/drivers/das08.c @@ -922,6 +922,13 @@ das08_attach_pci(struct comedi_device *dev, struct pci_dev *pdev) dev_err(dev->class_dev, "BUG! cannot determine board type!\n"); return -EINVAL; } + /* + * Need to 'get' the PCI device to match the 'put' in das08_detach(). + * TODO: Remove the pci_dev_get() and matching pci_dev_put() once + * support for manual attachment of PCI devices via das08_attach() + * has been removed. + */ + pci_dev_get(pdev); return das08_pci_attach_common(dev, pdev); } -- cgit v1.2.1 From c3f52af3e03013db5237e339c817beaae5ec9e3a Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Mon, 3 Sep 2012 14:56:02 -0400 Subject: NFS: Fix the initialisation of the readdir 'cookieverf' array When the NFS_COOKIEVERF helper macro was converted into a static inline function in commit 99fadcd764 (nfs: convert NFS_*(inode) helpers to static inline), we broke the initialisation of the readdir cookies, since that depended on doing a memset with an argument of 'sizeof(NFS_COOKIEVERF(inode))' which therefore changed from sizeof(be32 cookieverf[2]) to sizeof(be32 *). At this point, NFS_COOKIEVERF seems to be more of an obfuscation than a helper, so the best thing would be to just get rid of it. Also see: https://bugzilla.kernel.org/show_bug.cgi?id=46881 Reported-by: Andi Kleen Reported-by: David Binderman Signed-off-by: Trond Myklebust Cc: stable@vger.kernel.org --- fs/nfs/inode.c | 2 +- fs/nfs/nfs3proc.c | 2 +- fs/nfs/nfs4proc.c | 4 ++-- include/linux/nfs_fs.h | 5 ----- 4 files changed, 4 insertions(+), 9 deletions(-) diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c index c6e895f0fbf3..9b47610338f5 100644 --- a/fs/nfs/inode.c +++ b/fs/nfs/inode.c @@ -154,7 +154,7 @@ static void nfs_zap_caches_locked(struct inode *inode) nfsi->attrtimeo = NFS_MINATTRTIMEO(inode); nfsi->attrtimeo_timestamp = jiffies; - memset(NFS_COOKIEVERF(inode), 0, sizeof(NFS_COOKIEVERF(inode))); + memset(NFS_I(inode)->cookieverf, 0, sizeof(NFS_I(inode)->cookieverf)); if (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode)) nfsi->cache_validity |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL|NFS_INO_REVAL_PAGECACHE; else diff --git a/fs/nfs/nfs3proc.c b/fs/nfs/nfs3proc.c index d6b3b5f2d779..69322096c325 100644 --- a/fs/nfs/nfs3proc.c +++ b/fs/nfs/nfs3proc.c @@ -643,7 +643,7 @@ nfs3_proc_readdir(struct dentry *dentry, struct rpc_cred *cred, u64 cookie, struct page **pages, unsigned int count, int plus) { struct inode *dir = dentry->d_inode; - __be32 *verf = NFS_COOKIEVERF(dir); + __be32 *verf = NFS_I(dir)->cookieverf; struct nfs3_readdirargs arg = { .fh = NFS_FH(dir), .cookie = cookie, diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 635274140b18..86b4c7361036 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -3215,11 +3215,11 @@ static int _nfs4_proc_readdir(struct dentry *dentry, struct rpc_cred *cred, dentry->d_parent->d_name.name, dentry->d_name.name, (unsigned long long)cookie); - nfs4_setup_readdir(cookie, NFS_COOKIEVERF(dir), dentry, &args); + nfs4_setup_readdir(cookie, NFS_I(dir)->cookieverf, dentry, &args); res.pgbase = args.pgbase; status = nfs4_call_sync(NFS_SERVER(dir)->client, NFS_SERVER(dir), &msg, &args.seq_args, &res.seq_res, 0); if (status >= 0) { - memcpy(NFS_COOKIEVERF(dir), res.verifier.data, NFS4_VERIFIER_SIZE); + memcpy(NFS_I(dir)->cookieverf, res.verifier.data, NFS4_VERIFIER_SIZE); status += args.pgbase; } diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h index 1f8fc7f9bcd8..4b03f56e280e 100644 --- a/include/linux/nfs_fs.h +++ b/include/linux/nfs_fs.h @@ -265,11 +265,6 @@ static inline const struct nfs_rpc_ops *NFS_PROTO(const struct inode *inode) return NFS_SERVER(inode)->nfs_client->rpc_ops; } -static inline __be32 *NFS_COOKIEVERF(const struct inode *inode) -{ - return NFS_I(inode)->cookieverf; -} - static inline unsigned NFS_MINATTRTIMEO(const struct inode *inode) { struct nfs_server *nfss = NFS_SERVER(inode); -- cgit v1.2.1 From 872ece86ea5c367aa92f44689c2d01a1c767aeb3 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Tue, 4 Sep 2012 11:05:07 -0400 Subject: NFS: Fix a problem with the legacy binary mount code Apparently, am-utils is still using the legacy binary mountdata interface, and is having trouble parsing /proc/mounts due to the 'port=' field being incorrectly set. The following patch should fix up the regression. Reported-by: Marius Tolzmann Signed-off-by: Trond Myklebust Cc: stable@vger.kernel.org --- fs/nfs/super.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/nfs/super.c b/fs/nfs/super.c index 239aff7338eb..b8eda700584b 100644 --- a/fs/nfs/super.c +++ b/fs/nfs/super.c @@ -1867,6 +1867,7 @@ static int nfs23_validate_mount_data(void *options, memcpy(sap, &data->addr, sizeof(data->addr)); args->nfs_server.addrlen = sizeof(data->addr); + args->nfs_server.port = ntohs(data->addr.sin_port); if (!nfs_verify_server_address(sap)) goto out_no_address; @@ -2564,6 +2565,7 @@ static int nfs4_validate_mount_data(void *options, return -EFAULT; if (!nfs_verify_server_address(sap)) goto out_no_address; + args->nfs_server.port = ntohs(((struct sockaddr_in *)sap)->sin_port); if (data->auth_flavourlen) { if (data->auth_flavourlen > 1) -- cgit v1.2.1 From 21f498c2f73bd6150d82931f09965826dca0b5f2 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Fri, 24 Aug 2012 10:59:25 -0400 Subject: NFSv4: Fix range checking in __nfs4_get_acl_uncached and __nfs4_proc_set_acl Ensure that the user supplied buffer size doesn't cause us to overflow the 'pages' array. Also fix up some confusion between the use of PAGE_SIZE and PAGE_CACHE_SIZE when calculating buffer sizes. We're not using the page cache for anything here. Signed-off-by: Trond Myklebust --- fs/nfs/nfs4proc.c | 20 +++++++++++--------- 1 file changed, 11 insertions(+), 9 deletions(-) diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 86b4c7361036..6b94f2d52532 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -3653,11 +3653,11 @@ static inline int nfs4_server_supports_acls(struct nfs_server *server) && (server->acl_bitmask & ACL4_SUPPORT_DENY_ACL); } -/* Assuming that XATTR_SIZE_MAX is a multiple of PAGE_CACHE_SIZE, and that - * it's OK to put sizeof(void) * (XATTR_SIZE_MAX/PAGE_CACHE_SIZE) bytes on +/* Assuming that XATTR_SIZE_MAX is a multiple of PAGE_SIZE, and that + * it's OK to put sizeof(void) * (XATTR_SIZE_MAX/PAGE_SIZE) bytes on * the stack. */ -#define NFS4ACL_MAXPAGES (XATTR_SIZE_MAX >> PAGE_CACHE_SHIFT) +#define NFS4ACL_MAXPAGES DIV_ROUND_UP(XATTR_SIZE_MAX, PAGE_SIZE) static int buf_to_pages_noslab(const void *buf, size_t buflen, struct page **pages, unsigned int *pgbase) @@ -3668,7 +3668,7 @@ static int buf_to_pages_noslab(const void *buf, size_t buflen, spages = pages; do { - len = min_t(size_t, PAGE_CACHE_SIZE, buflen); + len = min_t(size_t, PAGE_SIZE, buflen); newpage = alloc_page(GFP_KERNEL); if (newpage == NULL) @@ -3782,17 +3782,16 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu .rpc_argp = &args, .rpc_resp = &res, }; - int ret = -ENOMEM, npages, i; + unsigned int npages = DIV_ROUND_UP(buflen, PAGE_SIZE); + int ret = -ENOMEM, i; size_t acl_len = 0; - npages = (buflen + PAGE_SIZE - 1) >> PAGE_SHIFT; /* As long as we're doing a round trip to the server anyway, * let's be prepared for a page of acl data. */ if (npages == 0) npages = 1; - - /* Add an extra page to handle the bitmap returned */ - npages++; + if (npages > ARRAY_SIZE(pages)) + return -ERANGE; for (i = 0; i < npages; i++) { pages[i] = alloc_page(GFP_KERNEL); @@ -3891,10 +3890,13 @@ static int __nfs4_proc_set_acl(struct inode *inode, const void *buf, size_t bufl .rpc_argp = &arg, .rpc_resp = &res, }; + unsigned int npages = DIV_ROUND_UP(buflen, PAGE_SIZE); int ret, i; if (!nfs4_server_supports_acls(server)) return -EOPNOTSUPP; + if (npages > ARRAY_SIZE(pages)) + return -ERANGE; i = buf_to_pages_noslab(buf, buflen, arg.acl_pages, &arg.acl_pgbase); if (i < 0) return i; -- cgit v1.2.1 From e6391a182865efc896cb2a8d79e07b7ac2f45b48 Mon Sep 17 00:00:00 2001 From: Ian Abbott Date: Fri, 31 Aug 2012 20:41:29 +0100 Subject: staging: comedi: das08: Correct AI encoding for das08jr-16-ao The element of `das08_boards[]` for the 'das08jr-16-ao' board has the `ai_encoding` member set to `das08_encode12`. It should be set to `das08_encode16` same as the 'das08jr/16' board. After all, this board has 16-bit AI resolution. The description of the A/D LSB register at offset 0 seems incorrect in the user manual "cio-das08jr-16-ao.pdf" as it implies that the AI resolution is only 12 bits. The diagrams of the A/D LSB and MSB registers show 15 data bits and a sign bit, which matches what the software expects for the `das08_encode16` AI encoding method. Cc: stable Signed-off-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman --- drivers/staging/comedi/drivers/das08.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/comedi/drivers/das08.c b/drivers/staging/comedi/drivers/das08.c index c5676e267518..e5eb3b9ba17f 100644 --- a/drivers/staging/comedi/drivers/das08.c +++ b/drivers/staging/comedi/drivers/das08.c @@ -623,7 +623,7 @@ static const struct das08_board_struct das08_boards[] = { .ai = das08_ai_rinsn, .ai_nbits = 16, .ai_pg = das08_pg_none, - .ai_encoding = das08_encode12, + .ai_encoding = das08_encode16, .ao = das08jr_ao_winsn, .ao_nbits = 16, .di = das08jr_di_rbits, -- cgit v1.2.1 From 61ed59ed09e6ad2b8395178ea5ad5f653bba08e3 Mon Sep 17 00:00:00 2001 From: Ian Abbott Date: Fri, 31 Aug 2012 20:41:30 +0100 Subject: staging: comedi: das08: Correct AO output for das08jr-16-ao Don't zero out bits 15..12 of the data value in `das08jr_ao_winsn()` as that knobbles the upper three-quarters of the output range for the 'das08jr-16-ao' board. Cc: stable Signed-off-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman --- drivers/staging/comedi/drivers/das08.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/comedi/drivers/das08.c b/drivers/staging/comedi/drivers/das08.c index e5eb3b9ba17f..67a914a10b55 100644 --- a/drivers/staging/comedi/drivers/das08.c +++ b/drivers/staging/comedi/drivers/das08.c @@ -378,7 +378,7 @@ das08jr_ao_winsn(struct comedi_device *dev, struct comedi_subdevice *s, int chan; lsb = data[0] & 0xff; - msb = (data[0] >> 8) & 0xf; + msb = (data[0] >> 8) & 0xff; chan = CR_CHAN(insn->chanspec); -- cgit v1.2.1 From b320e97240de0f98b81f866d59f47af41780eab0 Mon Sep 17 00:00:00 2001 From: Wu Fengguang Date: Sat, 1 Sep 2012 21:25:46 +0000 Subject: i825xx: fix paging fault on znet_probe() In znet_probe(), strncmp() may access beyond 0x100000 and trigger the below oops in kvm. Fix it by limiting the loop under 0x100000-8. I suspect the limit could be further decreased to 0x100000-sizeof(struct netidblk), however no datasheet at hand.. [ 3.744312] BUG: unable to handle kernel paging request at 80100000 [ 3.746145] IP: [<8119d12a>] strncmp+0xc/0x20 [ 3.747446] *pde = 01d10067 *pte = 00100160 [ 3.747493] Oops: 0000 [#1] DEBUG_PAGEALLOC [ 3.747493] Pid: 1, comm: swapper Not tainted 3.6.0-rc1-00018-g57bfc0a #73 Bochs Bochs [ 3.747493] EIP: 0060:[<8119d12a>] EFLAGS: 00010206 CPU: 0 [ 3.747493] EIP is at strncmp+0xc/0x20 [ 3.747493] EAX: 800fff4e EBX: 00000006 ECX: 00000006 EDX: 814d2bb9 [ 3.747493] ESI: 80100000 EDI: 814d2bba EBP: 8e03dfa0 ESP: 8e03df98 [ 3.747493] DS: 007b ES: 007b FS: 0000 GS: 00e0 SS: 0068 [ 3.747493] CR0: 8005003b CR2: 80100000 CR3: 016f7000 CR4: 00000690 [ 3.747493] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 [ 3.747493] DR6: ffff0ff0 DR7: 00000400 [ 3.747493] Process swapper (pid: 1, ti=8e03c000 task=8e040000 task.ti=8e03c000) [ 3.747493] Stack: [ 3.747493] 800fffff 00000000 8e03dfb4 816a1376 00000006 816a134a 00000000 8e03dfd0 [ 3.747493] 816819b5 816ed1c0 8e03dfe4 00000006 00000123 816ed604 8e03dfe4 81681b29 [ 3.747493] 00000000 81681a5b 00000000 00000000 8134e542 00000000 00000000 00000000 [ 3.747493] Call Trace: [ 3.747493] [<816a1376>] znet_probe+0x2c/0x26b [ 3.747493] [<816a134a>] ? dnet_driver_init+0xf/0xf [ 3.747493] [<816819b5>] do_one_initcall+0x6a/0x110 [ 3.747493] [<81681b29>] kernel_init+0xce/0x14b Signed-off-by: Fengguang Wu Signed-off-by: David S. Miller --- drivers/net/ethernet/i825xx/znet.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/i825xx/znet.c b/drivers/net/ethernet/i825xx/znet.c index bd1f1ef91e19..ba4e0cea3506 100644 --- a/drivers/net/ethernet/i825xx/znet.c +++ b/drivers/net/ethernet/i825xx/znet.c @@ -139,8 +139,11 @@ struct znet_private { /* Only one can be built-in;-> */ static struct net_device *znet_dev; +#define NETIDBLK_MAGIC "NETIDBLK" +#define NETIDBLK_MAGIC_SIZE 8 + struct netidblk { - char magic[8]; /* The magic number (string) "NETIDBLK" */ + char magic[NETIDBLK_MAGIC_SIZE]; /* The magic number (string) "NETIDBLK" */ unsigned char netid[8]; /* The physical station address */ char nettype, globalopt; char vendor[8]; /* The machine vendor and product name. */ @@ -373,14 +376,16 @@ static int __init znet_probe (void) struct znet_private *znet; struct net_device *dev; char *p; + char *plast = phys_to_virt(0x100000 - NETIDBLK_MAGIC_SIZE); int err = -ENOMEM; /* This code scans the region 0xf0000 to 0xfffff for a "NETIDBLK". */ - for(p = (char *)phys_to_virt(0xf0000); p < (char *)phys_to_virt(0x100000); p++) - if (*p == 'N' && strncmp(p, "NETIDBLK", 8) == 0) + for(p = (char *)phys_to_virt(0xf0000); p <= plast; p++) + if (*p == 'N' && + strncmp(p, NETIDBLK_MAGIC, NETIDBLK_MAGIC_SIZE) == 0) break; - if (p >= (char *)phys_to_virt(0x100000)) { + if (p > plast) { if (znet_debug > 1) printk(KERN_INFO "No Z-Note ethernet adaptor found.\n"); return -ENODEV; -- cgit v1.2.1 From 01f8a27e3c9109c0187f473e593fa7b45cdb65e8 Mon Sep 17 00:00:00 2001 From: Emil Goode Date: Fri, 17 Aug 2012 19:31:04 +0200 Subject: staging: wlan-ng: Fix problem with wrong arguments MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The function pointer scan in struct cfg80211_ops is not supposed to be assigned a function with a struct net_device pointer as an argument. Instead access the net_device struct in the following way: struct net_device *dev = request->wdev->netdev; sparse gives these warnings: drivers/staging/wlan-ng/cfg80211.c:726:17: warning: incorrect type in initializer (incompatible argument 2 (different base types)) expected int ( *scan )( ... ) got int ( extern [toplevel] * )( ... ) drivers/staging/wlan-ng/cfg80211.c:726:2: warning: initialization from incompatible pointer type [enabled by default] drivers/staging/wlan-ng/cfg80211.c:726:2: warning: (near initialization for ‘prism2_usb_cfg_ops.scan’) [enabled by default] Signed-off-by: Emil Goode Signed-off-by: Greg Kroah-Hartman --- drivers/staging/wlan-ng/cfg80211.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/staging/wlan-ng/cfg80211.c b/drivers/staging/wlan-ng/cfg80211.c index fabff4d650ef..0970127344e6 100644 --- a/drivers/staging/wlan-ng/cfg80211.c +++ b/drivers/staging/wlan-ng/cfg80211.c @@ -327,9 +327,9 @@ int prism2_get_station(struct wiphy *wiphy, struct net_device *dev, return result; } -int prism2_scan(struct wiphy *wiphy, struct net_device *dev, - struct cfg80211_scan_request *request) +int prism2_scan(struct wiphy *wiphy, struct cfg80211_scan_request *request) { + struct net_device *dev = request->wdev->netdev; struct prism2_wiphy_private *priv = wiphy_priv(wiphy); wlandevice_t *wlandev = dev->ml_priv; struct p80211msg_dot11req_scan msg1; -- cgit v1.2.1 From 07732be2efa7d4ade66d224ea84d2c30740d0b77 Mon Sep 17 00:00:00 2001 From: Tomas Winkler Date: Sun, 19 Aug 2012 19:36:37 +0300 Subject: staging: ozwpan: fix memcmp() test in oz_set_active_pd() "addr" is a pointer so it's either 4 or 8 bytes, but actually we want to compare 6 bytes (ETH_ALEN). As network stack already provides helper function is_zero_ether_addr() we use that instead of memcmp Signed-off-by: Tomas Winkler Acked-by: Dan Carpenter Acked-by: Rupesh Gujare Signed-off-by: Greg Kroah-Hartman --- drivers/staging/ozwpan/ozcdev.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/staging/ozwpan/ozcdev.c b/drivers/staging/ozwpan/ozcdev.c index d98321945802..758ce0a8d82e 100644 --- a/drivers/staging/ozwpan/ozcdev.c +++ b/drivers/staging/ozwpan/ozcdev.c @@ -8,6 +8,7 @@ #include #include #include +#include #include #include #include "ozconfig.h" @@ -213,7 +214,7 @@ static int oz_set_active_pd(u8 *addr) if (old_pd) oz_pd_put(old_pd); } else { - if (!memcmp(addr, "\0\0\0\0\0\0", sizeof(addr))) { + if (is_zero_ether_addr(addr)) { spin_lock_bh(&g_cdev.lock); pd = g_cdev.active_pd; g_cdev.active_pd = 0; -- cgit v1.2.1 From c0cc88a7627c333de50b07b7c60b1d49d9d2e6cc Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Tue, 4 Sep 2012 15:54:55 -0400 Subject: l2tp: fix a typo in l2tp_eth_dev_recv() While investigating l2tp bug, I hit a bug in eth_type_trans(), because not enough bytes were pulled in skb head. Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- net/l2tp/l2tp_eth.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/l2tp/l2tp_eth.c b/net/l2tp/l2tp_eth.c index f9ee74deeac2..3bfb34aaee29 100644 --- a/net/l2tp/l2tp_eth.c +++ b/net/l2tp/l2tp_eth.c @@ -153,7 +153,7 @@ static void l2tp_eth_dev_recv(struct l2tp_session *session, struct sk_buff *skb, print_hex_dump_bytes("", DUMP_PREFIX_OFFSET, skb->data, length); } - if (!pskb_may_pull(skb, sizeof(ETH_HLEN))) + if (!pskb_may_pull(skb, ETH_HLEN)) goto error; secpath_reset(skb); -- cgit v1.2.1 From aa209eef3ce8419ff2926c2fa944dfbfb5afbacb Mon Sep 17 00:00:00 2001 From: Malcolm Priestley Date: Wed, 29 Aug 2012 23:08:21 +0100 Subject: staging: vt6656: [BUG] - Failed connection, incorrect endian. Hi, This patch fixes a bug with driver failing to negotiate a connection. The bug was traced to commit 203e4615ee9d9fa8d3506b9d0ef30095e4d5bc90 staging: vt6656: removed custom definitions of Ethernet packet types In that patch, definitions in include/linux/if_ether.h replaced ones in tether.h which had both big and little endian definitions. include/linux/if_ether.h only refers to big endian values, cpu_to_be16 should be used for the correct endian architectures. Signed-off-by: Malcolm Priestley Cc: stable # 2.6.37+ Signed-off-by: Greg Kroah-Hartman --- drivers/staging/vt6656/dpc.c | 2 +- drivers/staging/vt6656/rxtx.c | 38 +++++++++++++++++++------------------- 2 files changed, 20 insertions(+), 20 deletions(-) diff --git a/drivers/staging/vt6656/dpc.c b/drivers/staging/vt6656/dpc.c index e4bdf2a2b582..3aa895ec6507 100644 --- a/drivers/staging/vt6656/dpc.c +++ b/drivers/staging/vt6656/dpc.c @@ -200,7 +200,7 @@ s_vProcessRxMACHeader ( } else if (!compare_ether_addr(pbyRxBuffer, &pDevice->abySNAP_RFC1042[0])) { cbHeaderSize += 6; pwType = (PWORD) (pbyRxBufferAddr + cbHeaderSize); - if ((*pwType == cpu_to_le16(ETH_P_IPX)) || + if ((*pwType == cpu_to_be16(ETH_P_IPX)) || (*pwType == cpu_to_le16(0xF380))) { cbHeaderSize -= 8; pwType = (PWORD) (pbyRxBufferAddr + cbHeaderSize); diff --git a/drivers/staging/vt6656/rxtx.c b/drivers/staging/vt6656/rxtx.c index bb464527fc1b..b6e04e7b629b 100644 --- a/drivers/staging/vt6656/rxtx.c +++ b/drivers/staging/vt6656/rxtx.c @@ -1699,7 +1699,7 @@ s_bPacketToWirelessUsb( // 802.1H if (ntohs(psEthHeader->wType) > ETH_DATA_LEN) { if (pDevice->dwDiagRefCount == 0) { - if ((psEthHeader->wType == cpu_to_le16(ETH_P_IPX)) || + if ((psEthHeader->wType == cpu_to_be16(ETH_P_IPX)) || (psEthHeader->wType == cpu_to_le16(0xF380))) { memcpy((PBYTE) (pbyPayloadHead), abySNAP_Bridgetunnel, 6); @@ -2838,10 +2838,10 @@ int nsDMA_tx_packet(PSDevice pDevice, unsigned int uDMAIdx, struct sk_buff *skb) Packet_Type = skb->data[ETH_HLEN+1]; Descriptor_type = skb->data[ETH_HLEN+1+1+2]; Key_info = (skb->data[ETH_HLEN+1+1+2+1] << 8)|(skb->data[ETH_HLEN+1+1+2+2]); - if (pDevice->sTxEthHeader.wType == cpu_to_le16(ETH_P_PAE)) { - /* 802.1x OR eapol-key challenge frame transfer */ - if (((Protocol_Version == 1) || (Protocol_Version == 2)) && - (Packet_Type == 3)) { + if (pDevice->sTxEthHeader.wType == cpu_to_be16(ETH_P_PAE)) { + /* 802.1x OR eapol-key challenge frame transfer */ + if (((Protocol_Version == 1) || (Protocol_Version == 2)) && + (Packet_Type == 3)) { bTxeapol_key = TRUE; if(!(Key_info & BIT3) && //WPA or RSN group-key challenge (Key_info & BIT8) && (Key_info & BIT9)) { //send 2/2 key @@ -2987,19 +2987,19 @@ int nsDMA_tx_packet(PSDevice pDevice, unsigned int uDMAIdx, struct sk_buff *skb) } } - if (pDevice->sTxEthHeader.wType == cpu_to_le16(ETH_P_PAE)) { - if (pDevice->byBBType != BB_TYPE_11A) { - pDevice->wCurrentRate = RATE_1M; - pDevice->byACKRate = RATE_1M; - pDevice->byTopCCKBasicRate = RATE_1M; - pDevice->byTopOFDMBasicRate = RATE_6M; - } else { - pDevice->wCurrentRate = RATE_6M; - pDevice->byACKRate = RATE_6M; - pDevice->byTopCCKBasicRate = RATE_1M; - pDevice->byTopOFDMBasicRate = RATE_6M; - } - } + if (pDevice->sTxEthHeader.wType == cpu_to_be16(ETH_P_PAE)) { + if (pDevice->byBBType != BB_TYPE_11A) { + pDevice->wCurrentRate = RATE_1M; + pDevice->byACKRate = RATE_1M; + pDevice->byTopCCKBasicRate = RATE_1M; + pDevice->byTopOFDMBasicRate = RATE_6M; + } else { + pDevice->wCurrentRate = RATE_6M; + pDevice->byACKRate = RATE_6M; + pDevice->byTopCCKBasicRate = RATE_1M; + pDevice->byTopOFDMBasicRate = RATE_6M; + } + } DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dma_tx: pDevice->wCurrentRate = %d\n", @@ -3015,7 +3015,7 @@ int nsDMA_tx_packet(PSDevice pDevice, unsigned int uDMAIdx, struct sk_buff *skb) if (bNeedEncryption == TRUE) { DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ntohs Pkt Type=%04x\n", ntohs(pDevice->sTxEthHeader.wType)); - if ((pDevice->sTxEthHeader.wType) == cpu_to_le16(ETH_P_PAE)) { + if ((pDevice->sTxEthHeader.wType) == cpu_to_be16(ETH_P_PAE)) { bNeedEncryption = FALSE; DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Pkt Type=%04x\n", (pDevice->sTxEthHeader.wType)); if ((pMgmt->eCurrMode == WMAC_MODE_ESS_STA) && (pMgmt->eCurrState == WMAC_STATE_ASSOC)) { -- cgit v1.2.1 From 6bd4a5d96c08dc2380f8053b1bd4f879f55cd3c9 Mon Sep 17 00:00:00 2001 From: "Dae S. Kim" Date: Fri, 31 Aug 2012 02:00:51 +0200 Subject: Staging: Android alarm: IOCTL command encoding fix Fixed a bug. Data was being written to user space using an IOCTL command encoded with _IOC_WRITE access mode. Signed-off-by: Dae S. Kim Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/staging/android/android_alarm.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/staging/android/android_alarm.h b/drivers/staging/android/android_alarm.h index d0cafd637199..f2ffd963f1c3 100644 --- a/drivers/staging/android/android_alarm.h +++ b/drivers/staging/android/android_alarm.h @@ -51,10 +51,12 @@ enum android_alarm_return_flags { #define ANDROID_ALARM_WAIT _IO('a', 1) #define ALARM_IOW(c, type, size) _IOW('a', (c) | ((type) << 4), size) +#define ALARM_IOR(c, type, size) _IOR('a', (c) | ((type) << 4), size) + /* Set alarm */ #define ANDROID_ALARM_SET(type) ALARM_IOW(2, type, struct timespec) #define ANDROID_ALARM_SET_AND_WAIT(type) ALARM_IOW(3, type, struct timespec) -#define ANDROID_ALARM_GET_TIME(type) ALARM_IOW(4, type, struct timespec) +#define ANDROID_ALARM_GET_TIME(type) ALARM_IOR(4, type, struct timespec) #define ANDROID_ALARM_SET_RTC _IOW('a', 5, struct timespec) #define ANDROID_ALARM_BASE_CMD(cmd) (cmd & ~(_IOC(0, 0, 0xf0, 0))) #define ANDROID_ALARM_IOCTL_TO_TYPE(cmd) (_IOC_NR(cmd) >> 4) -- cgit v1.2.1 From 29d214576f936db627ff62afb9ef438eea18bcd2 Mon Sep 17 00:00:00 2001 From: Manoj Iyer Date: Wed, 22 Aug 2012 11:53:18 -0500 Subject: xhci: Recognize USB 3.0 devices as superspeed at powerup On Intel Panther Point chipset USB 3.0 devices show up as high-speed devices on powerup, but after an s3 cycle they are correctly recognized as SuperSpeed. At powerup switch the port to xHCI so that USB 3.0 devices are correctly recognized. BugLink: http://bugs.launchpad.net/bugs/1000424 This patch should be backported to kernels as old as 3.0, that contain commit ID 69e848c2090aebba5698a1620604c7dccb448684 "Intel xhci: Support EHCI/xHCI port switching." Signed-off-by: Manoj Iyer Signed-off-by: Sarah Sharp Cc: stable@vger.kernel.org --- drivers/usb/host/pci-quirks.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c index c5e9e4a76f14..486e8122f0d8 100644 --- a/drivers/usb/host/pci-quirks.c +++ b/drivers/usb/host/pci-quirks.c @@ -870,9 +870,10 @@ static void __devinit quirk_usb_handoff_xhci(struct pci_dev *pdev) /* Disable any BIOS SMIs and clear all SMI events*/ writel(val, base + ext_cap_offset + XHCI_LEGACY_CONTROL_OFFSET); +hc_init: if (usb_is_intel_switchable_xhci(pdev)) usb_enable_xhci_ports(pdev); -hc_init: + op_reg_base = base + XHCI_HC_LENGTH(readl(base)); /* Wait for the host controller to be ready before writing any -- cgit v1.2.1 From a96874a2a92feaef607ddd3137277a788cb927a6 Mon Sep 17 00:00:00 2001 From: Keng-Yu Lin Date: Fri, 10 Aug 2012 01:39:23 +0800 Subject: Intel xhci: Only switch the switchable ports With a previous patch to enable the EHCI/XHCI port switching, it switches all the available ports. The assumption is not correct because the BIOS may expect some ports not switchable by the OS. There are two more registers that contains the information of the switchable and non-switchable ports. This patch adds the checking code for the two register so that only the switchable ports are altered. This patch should be backported to kernels as old as 3.0, that contain commit ID 69e848c2090aebba5698a1620604c7dccb448684 "Intel xhci: Support EHCI/xHCI port switching." Signed-off-by: Keng-Yu Lin Signed-off-by: Sarah Sharp Cc: stable@vger.kernel.org --- drivers/usb/host/pci-quirks.c | 27 +++++++++++++++++++++++---- 1 file changed, 23 insertions(+), 4 deletions(-) diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c index 486e8122f0d8..20b9f45f931c 100644 --- a/drivers/usb/host/pci-quirks.c +++ b/drivers/usb/host/pci-quirks.c @@ -75,7 +75,9 @@ #define NB_PIF0_PWRDOWN_1 0x01100013 #define USB_INTEL_XUSB2PR 0xD0 +#define USB_INTEL_USB2PRM 0xD4 #define USB_INTEL_USB3_PSSEN 0xD8 +#define USB_INTEL_USB3PRM 0xDC static struct amd_chipset_info { struct pci_dev *nb_dev; @@ -772,10 +774,18 @@ void usb_enable_xhci_ports(struct pci_dev *xhci_pdev) return; } - ports_available = 0xffffffff; + /* Read USB3PRM, the USB 3.0 Port Routing Mask Register + * Indicate the ports that can be changed from OS. + */ + pci_read_config_dword(xhci_pdev, USB_INTEL_USB3PRM, + &ports_available); + + dev_dbg(&xhci_pdev->dev, "Configurable ports to enable SuperSpeed: 0x%x\n", + ports_available); + /* Write USB3_PSSEN, the USB 3.0 Port SuperSpeed Enable - * Register, to turn on SuperSpeed terminations for all - * available ports. + * Register, to turn on SuperSpeed terminations for the + * switchable ports. */ pci_write_config_dword(xhci_pdev, USB_INTEL_USB3_PSSEN, cpu_to_le32(ports_available)); @@ -785,7 +795,16 @@ void usb_enable_xhci_ports(struct pci_dev *xhci_pdev) dev_dbg(&xhci_pdev->dev, "USB 3.0 ports that are now enabled " "under xHCI: 0x%x\n", ports_available); - ports_available = 0xffffffff; + /* Read XUSB2PRM, xHCI USB 2.0 Port Routing Mask Register + * Indicate the USB 2.0 ports to be controlled by the xHCI host. + */ + + pci_read_config_dword(xhci_pdev, USB_INTEL_USB2PRM, + &ports_available); + + dev_dbg(&xhci_pdev->dev, "Configurable USB 2.0 ports to hand over to xCHI: 0x%x\n", + ports_available); + /* Write XUSB2PR, the xHC USB 2.0 Port Routing Register, to * switch the USB 2.0 power and data lines over to the xHCI * host. -- cgit v1.2.1 From 96e65306b81351b656835c15931d1d237b252f27 Mon Sep 17 00:00:00 2001 From: Lai Jiangshan Date: Sun, 2 Sep 2012 00:28:19 +0800 Subject: workqueue: UNBOUND -> REBIND morphing in rebind_workers() should be atomic The compiler may compile the following code into TWO write/modify instructions. worker->flags &= ~WORKER_UNBOUND; worker->flags |= WORKER_REBIND; so the other CPU may temporarily see worker->flags which doesn't have either WORKER_UNBOUND or WORKER_REBIND set and perform local wakeup prematurely. Fix it by using single explicit assignment via ACCESS_ONCE(). Because idle workers have another WORKER_NOT_RUNNING flag, this bug doesn't exist for them; however, update it to use the same pattern for consistency. tj: Applied the change to idle workers too and updated comments and patch description a bit. Signed-off-by: Lai Jiangshan Signed-off-by: Tejun Heo Cc: stable@vger.kernel.org --- kernel/workqueue.c | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-) diff --git a/kernel/workqueue.c b/kernel/workqueue.c index 692d97628a10..c462cd60c374 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -1396,12 +1396,15 @@ retry: /* set REBIND and kick idle ones, we'll wait for these later */ for_each_worker_pool(pool, gcwq) { list_for_each_entry(worker, &pool->idle_list, entry) { + unsigned long worker_flags = worker->flags; + if (worker->flags & WORKER_REBIND) continue; - /* morph UNBOUND to REBIND */ - worker->flags &= ~WORKER_UNBOUND; - worker->flags |= WORKER_REBIND; + /* morph UNBOUND to REBIND atomically */ + worker_flags &= ~WORKER_UNBOUND; + worker_flags |= WORKER_REBIND; + ACCESS_ONCE(worker->flags) = worker_flags; idle_rebind.cnt++; worker->idle_rebind = &idle_rebind; @@ -1434,10 +1437,12 @@ retry: /* rebind busy workers */ for_each_busy_worker(worker, i, pos, gcwq) { struct work_struct *rebind_work = &worker->rebind_work; + unsigned long worker_flags = worker->flags; - /* morph UNBOUND to REBIND */ - worker->flags &= ~WORKER_UNBOUND; - worker->flags |= WORKER_REBIND; + /* morph UNBOUND to REBIND atomically */ + worker_flags &= ~WORKER_UNBOUND; + worker_flags |= WORKER_REBIND; + ACCESS_ONCE(worker->flags) = worker_flags; if (test_and_set_bit(WORK_STRUCT_PENDING_BIT, work_data_bits(rebind_work))) -- cgit v1.2.1 From e534e871a94ba2e3bfdf0edd3685eb805fc960d8 Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Tue, 4 Sep 2012 17:22:45 -0700 Subject: ARM: OMAP4: Fix array size for irq_target_cpu If NR_IRQS is less than MAX_IRQS, we end up writing past the irq_target_cpu array in omap_wakeupgen_init(): /* Associate all the IRQs to boot CPU like GIC init does. */ for (i = 0; i < max_irqs; i++) irq_target_cpu[i] = boot_cpu; This can happen if SPARSE_IRQ is enabled as by default NR_IRQS is set to 16. Without this patch we're overwriting other data during the boot. Looks like a similar fix was posted by Benoit Cousson earlier as "ARM: OMAP2+: wakeupgen: Fix wrong array size for irq_target_cpu" but was lost. Cc: stable@vger.kernel.org Acked-by: Santosh Shilimkar Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/omap-wakeupgen.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mach-omap2/omap-wakeupgen.c b/arch/arm/mach-omap2/omap-wakeupgen.c index 05fdebfaa195..330d4c6e746b 100644 --- a/arch/arm/mach-omap2/omap-wakeupgen.c +++ b/arch/arm/mach-omap2/omap-wakeupgen.c @@ -46,7 +46,7 @@ static void __iomem *wakeupgen_base; static void __iomem *sar_base; static DEFINE_SPINLOCK(wakeupgen_lock); -static unsigned int irq_target_cpu[NR_IRQS]; +static unsigned int irq_target_cpu[MAX_IRQS]; static unsigned int irq_banks = MAX_NR_REG_BANKS; static unsigned int max_irqs = MAX_IRQS; static unsigned int omap_secure_apis; -- cgit v1.2.1 From 15674868d6c5985466835c56dd89d39235f16302 Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Tue, 4 Sep 2012 13:55:05 +0530 Subject: mm/memblock: Use NULL instead of 0 for pointers This type cleanup also fixes the following sparse warning: mm/memblock.c:249:49: warning: Using plain integer as NULL pointer Signed-off-by: Sachin Kamat Acked-by: Tejun Heo Cc: Andrew Morton Cc: patches@linaro.org Cc: linux-mm@kvack.org Signed-off-by: Ingo Molnar --- mm/memblock.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/memblock.c b/mm/memblock.c index 4d9393c7edc9..82aa349d2f7a 100644 --- a/mm/memblock.c +++ b/mm/memblock.c @@ -246,7 +246,7 @@ static int __init_memblock memblock_double_array(struct memblock_type *type, min(new_area_start, memblock.current_limit), new_alloc_size, PAGE_SIZE); - new_array = addr ? __va(addr) : 0; + new_array = addr ? __va(addr) : NULL; } if (!addr) { pr_err("memblock: Failed to double %s array from %ld to %ld entries !\n", -- cgit v1.2.1 From 9c2fc0de1a6e638fe58c354a463f544f42a90a09 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Wed, 5 Sep 2012 15:48:23 +0200 Subject: udf: Fix data corruption for files in ICB When a file is stored in ICB (inode), we overwrite part of the file, and the page containing file's data is not in page cache, we end up corrupting file's data by overwriting them with zeros. The problem is we use simple_write_begin() which simply zeroes parts of the page which are not written to. The problem has been introduced by be021ee4 (udf: convert to new aops). Fix the problem by providing a ->write_begin function which makes the page properly uptodate. CC: # >= 2.6.24 Reported-by: Ian Abbott Signed-off-by: Jan Kara --- fs/udf/file.c | 35 +++++++++++++++++++++++++++++------ 1 file changed, 29 insertions(+), 6 deletions(-) diff --git a/fs/udf/file.c b/fs/udf/file.c index 7f3f7ba3df6e..d1c6093fd3d3 100644 --- a/fs/udf/file.c +++ b/fs/udf/file.c @@ -39,20 +39,24 @@ #include "udf_i.h" #include "udf_sb.h" -static int udf_adinicb_readpage(struct file *file, struct page *page) +static void __udf_adinicb_readpage(struct page *page) { struct inode *inode = page->mapping->host; char *kaddr; struct udf_inode_info *iinfo = UDF_I(inode); - BUG_ON(!PageLocked(page)); - kaddr = kmap(page); - memset(kaddr, 0, PAGE_CACHE_SIZE); memcpy(kaddr, iinfo->i_ext.i_data + iinfo->i_lenEAttr, inode->i_size); + memset(kaddr + inode->i_size, 0, PAGE_CACHE_SIZE - inode->i_size); flush_dcache_page(page); SetPageUptodate(page); kunmap(page); +} + +static int udf_adinicb_readpage(struct file *file, struct page *page) +{ + BUG_ON(!PageLocked(page)); + __udf_adinicb_readpage(page); unlock_page(page); return 0; @@ -77,6 +81,25 @@ static int udf_adinicb_writepage(struct page *page, return 0; } +static int udf_adinicb_write_begin(struct file *file, + struct address_space *mapping, loff_t pos, + unsigned len, unsigned flags, struct page **pagep, + void **fsdata) +{ + struct page *page; + + if (WARN_ON_ONCE(pos >= PAGE_CACHE_SIZE)) + return -EIO; + page = grab_cache_page_write_begin(mapping, 0, flags); + if (!page) + return -ENOMEM; + *pagep = page; + + if (!PageUptodate(page) && len != PAGE_CACHE_SIZE) + __udf_adinicb_readpage(page); + return 0; +} + static int udf_adinicb_write_end(struct file *file, struct address_space *mapping, loff_t pos, unsigned len, unsigned copied, @@ -98,8 +121,8 @@ static int udf_adinicb_write_end(struct file *file, const struct address_space_operations udf_adinicb_aops = { .readpage = udf_adinicb_readpage, .writepage = udf_adinicb_writepage, - .write_begin = simple_write_begin, - .write_end = udf_adinicb_write_end, + .write_begin = udf_adinicb_write_begin, + .write_end = udf_adinicb_write_end, }; static ssize_t udf_file_aio_write(struct kiocb *iocb, const struct iovec *iov, -- cgit v1.2.1 From 7ce8c7a3433c6d6f4adfec0611d250782f0b4b0c Mon Sep 17 00:00:00 2001 From: LEO Airwarosu Yoichi Shinoda Date: Mon, 27 Aug 2012 22:28:16 +0900 Subject: mac80211: Various small fixes for cfg.c: mpath_set_pinfo() Various small fixes for net/mac80211/cfg.c:mpath_set_pinfo(): Initialize *pinfo before filling members in, handle MESH_PATH_RESOLVED correctly, and remove bogus assignment; result in correct display of FLAGS values and meaningful EXPTIME for expired paths in iw utility. Signed-off-by: Yoichi Shinoda Signed-off-by: Johannes Berg --- net/mac80211/cfg.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index d41974aacf51..a58c0b649ba1 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -1378,6 +1378,8 @@ static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, else memset(next_hop, 0, ETH_ALEN); + memset(pinfo, 0, sizeof(*pinfo)); + pinfo->generation = mesh_paths_generation; pinfo->filled = MPATH_INFO_FRAME_QLEN | @@ -1396,7 +1398,6 @@ static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, pinfo->discovery_timeout = jiffies_to_msecs(mpath->discovery_timeout); pinfo->discovery_retries = mpath->discovery_retries; - pinfo->flags = 0; if (mpath->flags & MESH_PATH_ACTIVE) pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; if (mpath->flags & MESH_PATH_RESOLVING) @@ -1405,10 +1406,8 @@ static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; if (mpath->flags & MESH_PATH_FIXED) pinfo->flags |= NL80211_MPATH_FLAG_FIXED; - if (mpath->flags & MESH_PATH_RESOLVING) - pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; - - pinfo->flags = mpath->flags; + if (mpath->flags & MESH_PATH_RESOLVED) + pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; } static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, -- cgit v1.2.1 From da25186fc605af8ad636073621fa326fbc23a130 Mon Sep 17 00:00:00 2001 From: Stone Piao Date: Wed, 22 Aug 2012 20:26:31 -0700 Subject: mwifiex: fix skb length issue when send a command to firmware When we send a command to firmware, we assumed that cmd_size will be always less than or equal to the structure size of host_cmd_ds_command. However, this is no longer true after we added AP support. There are some AP commands that Custom IE TLVs are included in command buffer, hence the cmd_size gets enlarged by the TLV data. We need to increase the skb length for the extra data. Signed-off-by: Stone Piao Signed-off-by: Avinash Patil Signed-off-by: Amitkumar Karwar Signed-off-by: Bing Zhao Signed-off-by: John W. Linville --- drivers/net/wireless/mwifiex/cmdevt.c | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/mwifiex/cmdevt.c b/drivers/net/wireless/mwifiex/cmdevt.c index c68adec3cc8b..565527aee0ea 100644 --- a/drivers/net/wireless/mwifiex/cmdevt.c +++ b/drivers/net/wireless/mwifiex/cmdevt.c @@ -170,7 +170,20 @@ static int mwifiex_dnld_cmd_to_fw(struct mwifiex_private *priv, cmd_code = le16_to_cpu(host_cmd->command); cmd_size = le16_to_cpu(host_cmd->size); - skb_trim(cmd_node->cmd_skb, cmd_size); + /* Adjust skb length */ + if (cmd_node->cmd_skb->len > cmd_size) + /* + * cmd_size is less than sizeof(struct host_cmd_ds_command). + * Trim off the unused portion. + */ + skb_trim(cmd_node->cmd_skb, cmd_size); + else if (cmd_node->cmd_skb->len < cmd_size) + /* + * cmd_size is larger than sizeof(struct host_cmd_ds_command) + * because we have appended custom IE TLV. Increase skb length + * accordingly. + */ + skb_put(cmd_node->cmd_skb, cmd_size - cmd_node->cmd_skb->len); do_gettimeofday(&tstamp); dev_dbg(adapter->dev, "cmd: DNLD_CMD: (%lu.%lu): %#x, act %#x, len %d," -- cgit v1.2.1 From d0f21fe6585dda550b279ceccd2609111d7f1baa Mon Sep 17 00:00:00 2001 From: Marc Kleine-Budde Date: Mon, 27 Aug 2012 00:26:37 +0200 Subject: rt2x00: fix voltage setting for RT3572/RT3592 According to the vendor driver v2.6.0.1, during the rf register init the SRAM voltage should be increased to 1.35V and after 1ms decreased back to 1.2V. This patch adds the field setting of LDO_CFG0_LDO_CORE_VLEVEL accordingly. Cc: Gertjan van Wingerde Signed-off-by: Marc Kleine-Budde Acked-by: Ivo van Doorn Signed-off-by: John W. Linville --- drivers/net/wireless/rt2x00/rt2800lib.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c index cb8c2aca54e4..b93516d832fb 100644 --- a/drivers/net/wireless/rt2x00/rt2800lib.c +++ b/drivers/net/wireless/rt2x00/rt2800lib.c @@ -4089,6 +4089,7 @@ static int rt2800_init_rfcsr(struct rt2x00_dev *rt2x00dev) rt2800_register_write(rt2x00dev, LDO_CFG0, reg); msleep(1); rt2800_register_read(rt2x00dev, LDO_CFG0, ®); + rt2x00_set_field32(®, LDO_CFG0_LDO_CORE_VLEVEL, 0); rt2x00_set_field32(®, LDO_CFG0_BGSEL, 1); rt2800_register_write(rt2x00dev, LDO_CFG0, reg); } -- cgit v1.2.1 From 280b9a9de19b0819dcf1ab38c88e37bb82dbea0c Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Mon, 27 Aug 2012 17:00:03 +0200 Subject: ath9k_hw: do not enable the MIB interrupt in the interrupt mask register The interrupt is no longer handling it. While it shouldn't fire (wraparound is highly unlikely), the consequences would be fatal (interrupt storm). Disable the interrupt to prevent that from happening. Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/hw.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c index 60b6a9daff7e..d95474ecb6c9 100644 --- a/drivers/net/wireless/ath/ath9k/hw.c +++ b/drivers/net/wireless/ath/ath9k/hw.c @@ -978,9 +978,6 @@ static void ath9k_hw_init_interrupt_masks(struct ath_hw *ah, else imr_reg |= AR_IMR_TXOK; - if (opmode == NL80211_IFTYPE_AP) - imr_reg |= AR_IMR_MIB; - ENABLE_REGWRITE_BUFFER(ah); REG_WRITE(ah, AR_IMR, imr_reg); -- cgit v1.2.1 From 26228959938b25bd41311a3f133a695b9da60e72 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Mon, 27 Aug 2012 17:00:04 +0200 Subject: ath9k_hw: clear the AM2PM predistortion mask on AR933x That predistortion type is not supported Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/ar9003_paprd.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/ath/ath9k/ar9003_paprd.c b/drivers/net/wireless/ath/ath9k/ar9003_paprd.c index 2c9f7d7ed4cc..2173bd75dd21 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_paprd.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_paprd.c @@ -142,6 +142,7 @@ static int ar9003_paprd_setup_single_table(struct ath_hw *ah) }; int training_power; int i, val; + u32 am2pm_mask = ah->paprd_ratemask; if (IS_CHAN_2GHZ(ah->curchan)) training_power = ar9003_get_training_power_2g(ah); @@ -158,10 +159,13 @@ static int ar9003_paprd_setup_single_table(struct ath_hw *ah) } ah->paprd_training_power = training_power; + if (AR_SREV_9330(ah)) + am2pm_mask = 0; + REG_RMW_FIELD(ah, AR_PHY_PAPRD_AM2AM, AR_PHY_PAPRD_AM2AM_MASK, ah->paprd_ratemask); REG_RMW_FIELD(ah, AR_PHY_PAPRD_AM2PM, AR_PHY_PAPRD_AM2PM_MASK, - ah->paprd_ratemask); + am2pm_mask); REG_RMW_FIELD(ah, AR_PHY_PAPRD_HT40, AR_PHY_PAPRD_HT40_MASK, ah->paprd_ratemask_ht40); -- cgit v1.2.1 From 381c726c09bb43aea8088ede5ce24eaa158289dc Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Mon, 27 Aug 2012 17:00:05 +0200 Subject: ath9k_hw: calibrate PA input for PA predistortion Re-train if the calibrated PA linearization curve is out of bounds (affects AR933x and AR9485). Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/ar9003_paprd.c | 99 +++++++++++++++++++++++++++ drivers/net/wireless/ath/ath9k/ar9003_phy.h | 4 ++ drivers/net/wireless/ath/ath9k/link.c | 9 ++- 3 files changed, 111 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/ath/ath9k/ar9003_paprd.c b/drivers/net/wireless/ath/ath9k/ar9003_paprd.c index 2173bd75dd21..0ed3846f9cbb 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_paprd.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_paprd.c @@ -786,6 +786,102 @@ int ar9003_paprd_setup_gain_table(struct ath_hw *ah, int chain) } EXPORT_SYMBOL(ar9003_paprd_setup_gain_table); +static bool ar9003_paprd_retrain_pa_in(struct ath_hw *ah, + struct ath9k_hw_cal_data *caldata, + int chain) +{ + u32 *pa_in = caldata->pa_table[chain]; + int capdiv_offset, quick_drop_offset; + int capdiv2g, quick_drop; + int count = 0; + int i; + + if (!AR_SREV_9485(ah) && !AR_SREV_9330(ah)) + return false; + + capdiv2g = REG_READ_FIELD(ah, AR_PHY_65NM_CH0_TXRF3, + AR_PHY_65NM_CH0_TXRF3_CAPDIV2G); + + quick_drop = REG_READ_FIELD(ah, AR_PHY_PAPRD_TRAINER_CNTL3, + AR_PHY_PAPRD_TRAINER_CNTL3_CF_PAPRD_QUICK_DROP); + + if (quick_drop) + quick_drop -= 0x40; + + for (i = 0; i < NUM_BIN + 1; i++) { + if (pa_in[i] == 1400) + count++; + } + + if (AR_SREV_9485(ah)) { + if (pa_in[23] < 800) { + capdiv_offset = (int)((1000 - pa_in[23] + 75) / 150); + capdiv2g += capdiv_offset; + if (capdiv2g > 7) { + capdiv2g = 7; + if (pa_in[23] < 600) { + quick_drop++; + if (quick_drop > 0) + quick_drop = 0; + } + } + } else if (pa_in[23] == 1400) { + quick_drop_offset = min_t(int, count / 3, 2); + quick_drop += quick_drop_offset; + capdiv2g += quick_drop_offset / 2; + + if (capdiv2g > 7) + capdiv2g = 7; + + if (quick_drop > 0) { + quick_drop = 0; + capdiv2g -= quick_drop_offset; + if (capdiv2g < 0) + capdiv2g = 0; + } + } else { + return false; + } + } else if (AR_SREV_9330(ah)) { + if (pa_in[23] < 1000) { + capdiv_offset = (1000 - pa_in[23]) / 100; + capdiv2g += capdiv_offset; + if (capdiv_offset > 3) { + capdiv_offset = 1; + quick_drop--; + } + + capdiv2g += capdiv_offset; + if (capdiv2g > 6) + capdiv2g = 6; + if (quick_drop < -4) + quick_drop = -4; + } else if (pa_in[23] == 1400) { + if (count > 3) { + quick_drop++; + capdiv2g -= count / 4; + if (quick_drop > -2) + quick_drop = -2; + } else { + capdiv2g--; + } + + if (capdiv2g < 0) + capdiv2g = 0; + } else { + return false; + } + } + + REG_RMW_FIELD(ah, AR_PHY_65NM_CH0_TXRF3, + AR_PHY_65NM_CH0_TXRF3_CAPDIV2G, capdiv2g); + REG_RMW_FIELD(ah, AR_PHY_PAPRD_TRAINER_CNTL3, + AR_PHY_PAPRD_TRAINER_CNTL3_CF_PAPRD_QUICK_DROP, + quick_drop); + + return true; +} + int ar9003_paprd_create_curve(struct ath_hw *ah, struct ath9k_hw_cal_data *caldata, int chain) { @@ -821,6 +917,9 @@ int ar9003_paprd_create_curve(struct ath_hw *ah, if (!create_pa_curve(data_L, data_U, pa_table, small_signal_gain)) status = -2; + if (ar9003_paprd_retrain_pa_in(ah, caldata, chain)) + status = -EINPROGRESS; + REG_CLR_BIT(ah, AR_PHY_PAPRD_TRAINER_STAT1, AR_PHY_PAPRD_TRAINER_STAT1_PAPRD_TRAIN_DONE); diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.h b/drivers/net/wireless/ath/ath9k/ar9003_phy.h index 7bfbaf065a43..84d3d4956861 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_phy.h +++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.h @@ -625,6 +625,10 @@ #define AR_PHY_AIC_CTRL_4_B0 (AR_SM_BASE + 0x4c0) #define AR_PHY_AIC_STAT_2_B0 (AR_SM_BASE + 0x4cc) +#define AR_PHY_65NM_CH0_TXRF3 0x16048 +#define AR_PHY_65NM_CH0_TXRF3_CAPDIV2G 0x0000001e +#define AR_PHY_65NM_CH0_TXRF3_CAPDIV2G_S 1 + #define AR_PHY_65NM_CH0_SYNTH4 0x1608c #define AR_PHY_SYNTH4_LONG_SHIFT_SELECT (AR_SREV_9462(ah) ? 0x00000001 : 0x00000002) #define AR_PHY_SYNTH4_LONG_SHIFT_SELECT_S (AR_SREV_9462(ah) ? 0 : 1) diff --git a/drivers/net/wireless/ath/ath9k/link.c b/drivers/net/wireless/ath/ath9k/link.c index d4549e9aac5c..1c241921f95e 100644 --- a/drivers/net/wireless/ath/ath9k/link.c +++ b/drivers/net/wireless/ath/ath9k/link.c @@ -254,6 +254,7 @@ void ath_paprd_calibrate(struct work_struct *work) int chain_ok = 0; int chain; int len = 1800; + int ret; if (!caldata) return; @@ -302,7 +303,13 @@ void ath_paprd_calibrate(struct work_struct *work) break; } - if (ar9003_paprd_create_curve(ah, caldata, chain)) { + ret = ar9003_paprd_create_curve(ah, caldata, chain); + if (ret == -EINPROGRESS) { + ath_dbg(common, CALIBRATE, + "PAPRD curve on chain %d needs to be re-trained\n", + chain); + break; + } else if (ret) { ath_dbg(common, CALIBRATE, "PAPRD create curve failed on chain %d\n", chain); -- cgit v1.2.1 From 1630d25fd00f195f0923d4b895e0529fdbba83c3 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Mon, 27 Aug 2012 17:00:06 +0200 Subject: ath9k_hw: disable PA linearization for AR9462 Support for it is incomplete Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/hw.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c index d95474ecb6c9..64a00d2f18f2 100644 --- a/drivers/net/wireless/ath/ath9k/hw.c +++ b/drivers/net/wireless/ath/ath9k/hw.c @@ -2499,7 +2499,8 @@ int ath9k_hw_fill_cap_info(struct ath_hw *ah) pCap->tx_desc_len = sizeof(struct ar9003_txc); pCap->txs_len = sizeof(struct ar9003_txs); if (!ah->config.paprd_disable && - ah->eep_ops->get_eeprom(ah, EEP_PAPRD)) + ah->eep_ops->get_eeprom(ah, EEP_PAPRD) && + !AR_SREV_9462(ah)) pCap->hw_caps |= ATH9K_HW_CAP_PAPRD; } else { pCap->tx_desc_len = sizeof(struct ath_desc); -- cgit v1.2.1 From 51dea9be7e01d7e825ed1882246693f09c21374c Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Mon, 27 Aug 2012 17:00:07 +0200 Subject: ath9k: fix PA linearization calibration related crash Before PAPRD training can run, the card needs to have sent a packet for thermal calibration. Sending a dummy packet with the PAPRD training flag set causes a crash under some circumstance. Fix the code by replacing the dummy tx with a delay that waits for a real packet tx to have occurred. Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/hw.c | 2 ++ drivers/net/wireless/ath/ath9k/hw.h | 1 + drivers/net/wireless/ath/ath9k/link.c | 9 +-------- drivers/net/wireless/ath/ath9k/xmit.c | 3 +++ 4 files changed, 7 insertions(+), 8 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c index 64a00d2f18f2..e4b9f35343e5 100644 --- a/drivers/net/wireless/ath/ath9k/hw.c +++ b/drivers/net/wireless/ath/ath9k/hw.c @@ -1775,6 +1775,8 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan, /* Operating channel changed, reset channel calibration data */ memset(caldata, 0, sizeof(*caldata)); ath9k_init_nfcal_hist_buffer(ah, chan); + } else if (caldata) { + caldata->paprd_packet_sent = false; } ah->noise = ath9k_hw_getchan_noise(ah, chan); diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h index ce7332c64efb..6599a75f01fe 100644 --- a/drivers/net/wireless/ath/ath9k/hw.h +++ b/drivers/net/wireless/ath/ath9k/hw.h @@ -405,6 +405,7 @@ struct ath9k_hw_cal_data { int8_t iCoff; int8_t qCoff; bool rtt_done; + bool paprd_packet_sent; bool paprd_done; bool nfcal_pending; bool nfcal_interference; diff --git a/drivers/net/wireless/ath/ath9k/link.c b/drivers/net/wireless/ath/ath9k/link.c index 1c241921f95e..825a29cc9313 100644 --- a/drivers/net/wireless/ath/ath9k/link.c +++ b/drivers/net/wireless/ath/ath9k/link.c @@ -256,7 +256,7 @@ void ath_paprd_calibrate(struct work_struct *work) int len = 1800; int ret; - if (!caldata) + if (!caldata || !caldata->paprd_packet_sent || caldata->paprd_done) return; ath9k_ps_wakeup(sc); @@ -283,13 +283,6 @@ void ath_paprd_calibrate(struct work_struct *work) continue; chain_ok = 0; - - ath_dbg(common, CALIBRATE, - "Sending PAPRD frame for thermal measurement on chain %d\n", - chain); - if (!ath_paprd_send_frame(sc, skb, chain)) - goto fail_paprd; - ar9003_paprd_setup_gain_table(ah, chain); ath_dbg(common, CALIBRATE, diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c index 2c9da6b2ecb1..0d4155aec48d 100644 --- a/drivers/net/wireless/ath/ath9k/xmit.c +++ b/drivers/net/wireless/ath/ath9k/xmit.c @@ -2018,6 +2018,9 @@ static void ath_tx_complete(struct ath_softc *sc, struct sk_buff *skb, ath_dbg(common, XMIT, "TX complete: skb: %p\n", skb); + if (sc->sc_ah->caldata) + sc->sc_ah->caldata->paprd_packet_sent = true; + if (!(tx_flags & ATH_TX_ERROR)) /* Frame was ACKed */ tx_info->flags |= IEEE80211_TX_STAT_ACK; -- cgit v1.2.1 From b3ccc1a56280119fe1fbf9929a76b4034358bfef Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Mon, 27 Aug 2012 17:00:08 +0200 Subject: ath9k_hw: enable PA linearization This feature had been disabled in ath9k because the code to support it was incomplete, but now the code is in sync with the internal QCA codebase, so it's time to enable it. On many newer devices, the calibration is assumed to be done with PA linearization enabled. Tests with a particular AR933x device showed that the signal emitted at full power was highly distorted and unreliable with PA linearization disabled. With this patch, the signal becomes clear and stability is improved. Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/hw.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c index e4b9f35343e5..48af40151d23 100644 --- a/drivers/net/wireless/ath/ath9k/hw.c +++ b/drivers/net/wireless/ath/ath9k/hw.c @@ -463,9 +463,6 @@ static void ath9k_hw_init_config(struct ath_hw *ah) ah->config.spurchans[i][1] = AR_NO_SPUR; } - /* PAPRD needs some more work to be enabled */ - ah->config.paprd_disable = 1; - ah->config.rx_intr_mitigation = true; ah->config.pcieSerDesWrite = true; -- cgit v1.2.1 From 5d9b6f263995d7f43202d76cf2e23d43f9240a90 Mon Sep 17 00:00:00 2001 From: Mohammed Shafi Shajakhan Date: Tue, 28 Aug 2012 12:14:48 +0530 Subject: ath9k: Fix a crash in 2 WIRE btcoex chipsets Generic timers for BTCOEX functionality is applicable only for 3 WIRE BTCOEX (and MCI) chipsets. Hence btcoex->no_stomp_timer is allocated only 3 WIRE btcoex chipsets and in all the other cases its NULL. Make sure we stop the generic timer only if 'btcoex->hw_timer_enabled' is true(only if its up and running) Fixes the following crash [68757.020454] BUG: unable to handle kernel NULL pointer dereference at 0000000c [68757.020916] IP: [] ath9k_hw_gen_timer_stop+0x13/0x80 [ath9k_hw] [68757.021251] *pde = 00000000 [68757.024384] EIP: 0060:[] EFLAGS: 00010082 CPU: 0 [68757.024384] EIP is at ath9k_hw_gen_timer_stop+0x13/0x80 [ath9k_hw] [68757.024384] EAX: d32d0000 EBX: d32d0000 ECX: 00000000 EDX: 00000000 [68757.024384] ESI: e67c24c0 EDI: 00000296 EBP: e137be2c ESP: e137be20 [68757.024384] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 [68757.024384] CR0: 8005003b CR2: 0000000c CR3: 00b99000 CR4: 000407d0 [68757.024384] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 [68757.024384] DR6: ffff0ff0 DR7: 00000400 [68757.024384] Process kworker/u:2 (pid: 8917, ti=e137a000 task=ea7a6860 task.ti=e137a000) [68757.024384] Stack: [68757.024384] c06c4676 d32d0000 e67c24c0 e137be38 f81c9590 e67c1ca0 e137be40 f81c95d9 [68757.024384] e137be64 f81cd1c5 00000246 00000002 d32d0000 e67c05e0 e67c1ca0 e67c05e0 [68757.024384] 00000000 e137beac f81cdfa0 e137be84 00000246 00000246 e67c1ca0 e67c1ca0 [68757.024384] Call Trace: [68757.024384] [] ? _raw_spin_lock_irqsave+0x86/0xa0 [68757.024384] [] ath9k_gen_timer_stop+0x10/0x40 [ath9k] [68757.024384] [] ath9k_btcoex_stop_gen_timer+0x19/0x20 [ath9k] [68757.024384] [] ath9k_ps_restore+0x85/0x110 [ath9k] [68757.024384] [] ath9k_config+0x220/0x520 [ath9k] [68757.024384] [] ? ath9k_flush+0x15d/0x1b0 [ath9k] [68757.024384] [] ieee80211_hw_config+0x135/0x2c0 [mac80211] [68757.024384] [] ieee80211_dynamic_ps_enable_work+0x198/0x5f0 [mac80211] Cc: Rajkumar Manoharan Cc: Bala Shanmugam Signed-off-by: Mohammed Shafi Shajakhan Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/gpio.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/ath/ath9k/gpio.c b/drivers/net/wireless/ath/ath9k/gpio.c index bacdb8fb4ef4..9f83f71742a5 100644 --- a/drivers/net/wireless/ath/ath9k/gpio.c +++ b/drivers/net/wireless/ath/ath9k/gpio.c @@ -341,7 +341,8 @@ void ath9k_btcoex_stop_gen_timer(struct ath_softc *sc) { struct ath_btcoex *btcoex = &sc->btcoex; - ath9k_gen_timer_stop(sc->sc_ah, btcoex->no_stomp_timer); + if (btcoex->hw_timer_enabled) + ath9k_gen_timer_stop(sc->sc_ah, btcoex->no_stomp_timer); } u16 ath9k_btcoex_aggr_limit(struct ath_softc *sc, u32 max_4ms_framelen) -- cgit v1.2.1 From 01e3331b30b48fe96d016435707af050700c8421 Mon Sep 17 00:00:00 2001 From: Arend van Spriel Date: Thu, 30 Aug 2012 10:05:34 +0200 Subject: brcmfmac: fix use of dev_kfree_skb() in irq context The USB part of the brcmfmac did a dev_kfree_skb() that resulted in a warning in net/core/skbuff.c: Jul 11 04:53:33 lb-bun-10 kernel: [53282.667745] WARNING: at net/core/skbuff.c:490 skb_release_head_state+0xcc/0xe0() The brcmutil modules provides brcmu_pkt_buf_free_skb() which takes the context into account. This patch makes use of this function instead of dev_kfree_skb(). Reviewed-by: Pieter-Paul Giesberts Reviewed-by: Hante Meuleman Signed-off-by: Arend van Spriel Signed-off-by: John W. Linville --- drivers/net/wireless/brcm80211/brcmfmac/usb.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/net/wireless/brcm80211/brcmfmac/usb.c b/drivers/net/wireless/brcm80211/brcmfmac/usb.c index a299d42da8e7..f72dfb70ba0b 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/usb.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/usb.c @@ -519,7 +519,7 @@ static void brcmf_usb_tx_complete(struct urb *urb) else devinfo->bus_pub.bus->dstats.tx_errors++; - dev_kfree_skb(req->skb); + brcmu_pkt_buf_free_skb(req->skb); req->skb = NULL; brcmf_usb_enq(devinfo, &devinfo->tx_freeq, req); @@ -540,7 +540,7 @@ static void brcmf_usb_rx_complete(struct urb *urb) devinfo->bus_pub.bus->dstats.rx_packets++; } else { devinfo->bus_pub.bus->dstats.rx_errors++; - dev_kfree_skb(skb); + brcmu_pkt_buf_free_skb(skb); brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req); return; } @@ -556,7 +556,7 @@ static void brcmf_usb_rx_complete(struct urb *urb) brcmf_usb_rx_refill(devinfo, req); } } else { - dev_kfree_skb(skb); + brcmu_pkt_buf_free_skb(skb); } return; @@ -588,7 +588,7 @@ static void brcmf_usb_rx_refill(struct brcmf_usbdev_info *devinfo, if (ret == 0) { brcmf_usb_enq(devinfo, &devinfo->rx_postq, req); } else { - dev_kfree_skb(req->skb); + brcmu_pkt_buf_free_skb(req->skb); req->skb = NULL; brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req); } -- cgit v1.2.1 From 474ab7cea4001f07ec8599a680fd19d8761fa7d8 Mon Sep 17 00:00:00 2001 From: Hante Meuleman Date: Thu, 30 Aug 2012 10:05:35 +0200 Subject: brcmfmac: dont use ZERO flag for usb IN URB_ZERO_PACKET should only be set or bulk OUT and this condition is checked with a WARN_ON in usb_submit_urb(). This patch fixes brcmfmac to get rid of this warning filling the logs. Reviewed-by: Franky (Zhenhui) Lin Reviewed-by: Pieter-Paul Giesberts Signed-off-by: Hante Meuleman Signed-off-by: Arend van Spriel Signed-off-by: John W. Linville --- drivers/net/wireless/brcm80211/brcmfmac/usb.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/net/wireless/brcm80211/brcmfmac/usb.c b/drivers/net/wireless/brcm80211/brcmfmac/usb.c index f72dfb70ba0b..8ea2db7326b8 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/usb.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/usb.c @@ -581,7 +581,6 @@ static void brcmf_usb_rx_refill(struct brcmf_usbdev_info *devinfo, usb_fill_bulk_urb(req->urb, devinfo->usbdev, devinfo->rx_pipe, skb->data, skb_tailroom(skb), brcmf_usb_rx_complete, req); - req->urb->transfer_flags |= URB_ZERO_PACKET; req->devinfo = devinfo; ret = usb_submit_urb(req->urb, GFP_ATOMIC); -- cgit v1.2.1 From 2e875acd399fcc6e301063e5ead371ad089d5920 Mon Sep 17 00:00:00 2001 From: Hante Meuleman Date: Thu, 30 Aug 2012 10:05:36 +0200 Subject: brcmfmac: fix race condition for rx and tx data. On both rx and tx there is was a race condition on the queueing of usb requests. When for example frame gets submitted it is possible that complete function gets called even before usb_submit_urb() returns. As a result it is possible that usb requests get losts, which was noticed on OMAP4 pandaboard platform. This patch fixes the race condition. Reviewed-by: Arend Van Spriel Reviewed-by: Franky (Zhenhui) Lin Reviewed-by: Pieter-Paul Giesberts Signed-off-by: Hante Meuleman Signed-off-by: Arend van Spriel Signed-off-by: John W. Linville --- drivers/net/wireless/brcm80211/brcmfmac/usb.c | 21 +++++++++++---------- 1 file changed, 11 insertions(+), 10 deletions(-) diff --git a/drivers/net/wireless/brcm80211/brcmfmac/usb.c b/drivers/net/wireless/brcm80211/brcmfmac/usb.c index 8ea2db7326b8..58f89fa9c9f8 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/usb.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/usb.c @@ -550,6 +550,7 @@ static void brcmf_usb_rx_complete(struct urb *urb) if (brcmf_proto_hdrpull(devinfo->dev, &ifidx, skb) != 0) { brcmf_dbg(ERROR, "rx protocol error\n"); brcmu_pkt_buf_free_skb(skb); + brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req); devinfo->bus_pub.bus->dstats.rx_errors++; } else { brcmf_rx_packet(devinfo->dev, ifidx, skb); @@ -557,6 +558,7 @@ static void brcmf_usb_rx_complete(struct urb *urb) } } else { brcmu_pkt_buf_free_skb(skb); + brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req); } return; @@ -582,11 +584,11 @@ static void brcmf_usb_rx_refill(struct brcmf_usbdev_info *devinfo, skb->data, skb_tailroom(skb), brcmf_usb_rx_complete, req); req->devinfo = devinfo; + brcmf_usb_enq(devinfo, &devinfo->rx_postq, req); ret = usb_submit_urb(req->urb, GFP_ATOMIC); - if (ret == 0) { - brcmf_usb_enq(devinfo, &devinfo->rx_postq, req); - } else { + if (ret) { + brcmf_usb_del_fromq(devinfo, req); brcmu_pkt_buf_free_skb(req->skb); req->skb = NULL; brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req); @@ -682,23 +684,22 @@ static int brcmf_usb_tx(struct device *dev, struct sk_buff *skb) req = brcmf_usb_deq(devinfo, &devinfo->tx_freeq); if (!req) { + brcmu_pkt_buf_free_skb(skb); brcmf_dbg(ERROR, "no req to send\n"); return -ENOMEM; } - if (!req->urb) { - brcmf_dbg(ERROR, "no urb for req %p\n", req); - return -ENOBUFS; - } req->skb = skb; req->devinfo = devinfo; usb_fill_bulk_urb(req->urb, devinfo->usbdev, devinfo->tx_pipe, skb->data, skb->len, brcmf_usb_tx_complete, req); req->urb->transfer_flags |= URB_ZERO_PACKET; + brcmf_usb_enq(devinfo, &devinfo->tx_postq, req); ret = usb_submit_urb(req->urb, GFP_ATOMIC); - if (!ret) { - brcmf_usb_enq(devinfo, &devinfo->tx_postq, req); - } else { + if (ret) { + brcmf_dbg(ERROR, "brcmf_usb_tx usb_submit_urb FAILED\n"); + brcmf_usb_del_fromq(devinfo, req); + brcmu_pkt_buf_free_skb(req->skb); req->skb = NULL; brcmf_usb_enq(devinfo, &devinfo->tx_freeq, req); } -- cgit v1.2.1 From 7f6c562dfa52425a28933982df7d21edba7e3d71 Mon Sep 17 00:00:00 2001 From: Hante Meuleman Date: Thu, 30 Aug 2012 10:05:37 +0200 Subject: brcmfmac: fix get rssi by clearing getvar struct. The function brcmf_cfg80211_get_station requests the RSSI from the device. The complete structure used needs to be cleared before sending the request to firmware. Otherwise the request fails filling the logs with "Could not get rssi (-2)" messages. Reviewed-by: Arend Van Spriel Reviewed-by: Franky (Zhenhui) Lin Reviewed-by: Pieter-Paul Giesberts Signed-off-by: Hante Meuleman Signed-off-by: Arend van Spriel Signed-off-by: John W. Linville --- drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) diff --git a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c index 28c5fbb4af26..c36e92312443 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c @@ -1876,16 +1876,17 @@ brcmf_cfg80211_get_station(struct wiphy *wiphy, struct net_device *ndev, } if (test_bit(WL_STATUS_CONNECTED, &cfg_priv->status)) { - scb_val.val = cpu_to_le32(0); + memset(&scb_val, 0, sizeof(scb_val)); err = brcmf_exec_dcmd(ndev, BRCMF_C_GET_RSSI, &scb_val, sizeof(struct brcmf_scb_val_le)); - if (err) + if (err) { WL_ERR("Could not get rssi (%d)\n", err); - - rssi = le32_to_cpu(scb_val.val); - sinfo->filled |= STATION_INFO_SIGNAL; - sinfo->signal = rssi; - WL_CONN("RSSI %d dBm\n", rssi); + } else { + rssi = le32_to_cpu(scb_val.val); + sinfo->filled |= STATION_INFO_SIGNAL; + sinfo->signal = rssi; + WL_CONN("RSSI %d dBm\n", rssi); + } } done: -- cgit v1.2.1 From 177ef8360fabdc49ff08d2598c06e7f7a36b53e3 Mon Sep 17 00:00:00 2001 From: Gertjan van Wingerde Date: Fri, 31 Aug 2012 19:22:09 +0200 Subject: rt2x00: Identify ASUS USB-N53 device. This is an RT3572 based device. Signed-off-by: Maximilian Engelhardt Signed-off-by: Gertjan van Wingerde Cc: Acked-by: Ivo Van Doorn Signed-off-by: John W. Linville --- drivers/net/wireless/rt2x00/rt2800usb.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/rt2x00/rt2800usb.c b/drivers/net/wireless/rt2x00/rt2800usb.c index 6cf336595e25..6681bfc03201 100644 --- a/drivers/net/wireless/rt2x00/rt2800usb.c +++ b/drivers/net/wireless/rt2x00/rt2800usb.c @@ -1157,6 +1157,8 @@ static struct usb_device_id rt2800usb_device_table[] = { { USB_DEVICE(0x1690, 0x0744) }, { USB_DEVICE(0x1690, 0x0761) }, { USB_DEVICE(0x1690, 0x0764) }, + /* ASUS */ + { USB_DEVICE(0x0b05, 0x179d) }, /* Cisco */ { USB_DEVICE(0x167b, 0x4001) }, /* EnGenius */ @@ -1222,7 +1224,6 @@ static struct usb_device_id rt2800usb_device_table[] = { { USB_DEVICE(0x0b05, 0x1760) }, { USB_DEVICE(0x0b05, 0x1761) }, { USB_DEVICE(0x0b05, 0x1790) }, - { USB_DEVICE(0x0b05, 0x179d) }, /* AzureWave */ { USB_DEVICE(0x13d3, 0x3262) }, { USB_DEVICE(0x13d3, 0x3284) }, -- cgit v1.2.1 From 6ced58a5dbb94dbfbea1b33ca3c56d1e929cd548 Mon Sep 17 00:00:00 2001 From: Gertjan van Wingerde Date: Fri, 31 Aug 2012 19:22:10 +0200 Subject: rt2x00: Fix word size of rt2500usb MAC_CSR19 register. The register is 16 bits wide, not 32. Signed-off-by: Gertjan van Wingerde Cc: Acked-by: Ivo Van Doorn Signed-off-by: John W. Linville --- drivers/net/wireless/rt2x00/rt2500usb.c | 2 +- drivers/net/wireless/rt2x00/rt2500usb.h | 16 ++++++++-------- 2 files changed, 9 insertions(+), 9 deletions(-) diff --git a/drivers/net/wireless/rt2x00/rt2500usb.c b/drivers/net/wireless/rt2x00/rt2500usb.c index 3aae36bb0a9e..b3a1d732f3d1 100644 --- a/drivers/net/wireless/rt2x00/rt2500usb.c +++ b/drivers/net/wireless/rt2x00/rt2500usb.c @@ -283,7 +283,7 @@ static int rt2500usb_rfkill_poll(struct rt2x00_dev *rt2x00dev) u16 reg; rt2500usb_register_read(rt2x00dev, MAC_CSR19, ®); - return rt2x00_get_field32(reg, MAC_CSR19_BIT7); + return rt2x00_get_field16(reg, MAC_CSR19_BIT7); } #ifdef CONFIG_RT2X00_LIB_LEDS diff --git a/drivers/net/wireless/rt2x00/rt2500usb.h b/drivers/net/wireless/rt2x00/rt2500usb.h index b493306a7eed..192531db0b65 100644 --- a/drivers/net/wireless/rt2x00/rt2500usb.h +++ b/drivers/net/wireless/rt2x00/rt2500usb.h @@ -189,14 +189,14 @@ * MAC_CSR19: GPIO control register. */ #define MAC_CSR19 0x0426 -#define MAC_CSR19_BIT0 FIELD32(0x0001) -#define MAC_CSR19_BIT1 FIELD32(0x0002) -#define MAC_CSR19_BIT2 FIELD32(0x0004) -#define MAC_CSR19_BIT3 FIELD32(0x0008) -#define MAC_CSR19_BIT4 FIELD32(0x0010) -#define MAC_CSR19_BIT5 FIELD32(0x0020) -#define MAC_CSR19_BIT6 FIELD32(0x0040) -#define MAC_CSR19_BIT7 FIELD32(0x0080) +#define MAC_CSR19_BIT0 FIELD16(0x0001) +#define MAC_CSR19_BIT1 FIELD16(0x0002) +#define MAC_CSR19_BIT2 FIELD16(0x0004) +#define MAC_CSR19_BIT3 FIELD16(0x0008) +#define MAC_CSR19_BIT4 FIELD16(0x0010) +#define MAC_CSR19_BIT5 FIELD16(0x0020) +#define MAC_CSR19_BIT6 FIELD16(0x0040) +#define MAC_CSR19_BIT7 FIELD16(0x0080) /* * MAC_CSR20: LED control register. -- cgit v1.2.1 From a396e10019eaf3809b0219c966865aaafec12630 Mon Sep 17 00:00:00 2001 From: Gertjan van Wingerde Date: Fri, 31 Aug 2012 19:22:11 +0200 Subject: rt2x00: Fix rfkill polling prior to interface start. We need to program the rfkill switch GPIO pin direction to input at device initialization time, not only when the interface is brought up. Doing this only when the interface is brought up could lead to rfkill detecting the switch is turned on erroneously and inability to create the interface and bringing it up. Reported-and-tested-by: Andreas Messer Signed-off-by: Gertjan van Wingerde Cc: Acked-by: Ivo Van Doorn Signed-off-by: John W. Linville --- drivers/net/wireless/rt2x00/rt2400pci.c | 9 +++++++++ drivers/net/wireless/rt2x00/rt2400pci.h | 1 + drivers/net/wireless/rt2x00/rt2500pci.c | 9 +++++++++ drivers/net/wireless/rt2x00/rt2500usb.c | 9 +++++++++ drivers/net/wireless/rt2x00/rt2500usb.h | 1 + drivers/net/wireless/rt2x00/rt2800pci.c | 9 +++++++++ drivers/net/wireless/rt2x00/rt2800usb.c | 9 +++++++++ drivers/net/wireless/rt2x00/rt61pci.c | 9 +++++++++ drivers/net/wireless/rt2x00/rt61pci.h | 1 + drivers/net/wireless/rt2x00/rt73usb.c | 9 +++++++++ drivers/net/wireless/rt2x00/rt73usb.h | 3 +++ 11 files changed, 69 insertions(+) diff --git a/drivers/net/wireless/rt2x00/rt2400pci.c b/drivers/net/wireless/rt2x00/rt2400pci.c index 8b9dbd76a252..64328af496f5 100644 --- a/drivers/net/wireless/rt2x00/rt2400pci.c +++ b/drivers/net/wireless/rt2x00/rt2400pci.c @@ -1611,6 +1611,7 @@ static int rt2400pci_probe_hw_mode(struct rt2x00_dev *rt2x00dev) static int rt2400pci_probe_hw(struct rt2x00_dev *rt2x00dev) { int retval; + u32 reg; /* * Allocate eeprom data. @@ -1623,6 +1624,14 @@ static int rt2400pci_probe_hw(struct rt2x00_dev *rt2x00dev) if (retval) return retval; + /* + * Enable rfkill polling by setting GPIO direction of the + * rfkill switch GPIO pin correctly. + */ + rt2x00pci_register_read(rt2x00dev, GPIOCSR, ®); + rt2x00_set_field32(®, GPIOCSR_BIT8, 1); + rt2x00pci_register_write(rt2x00dev, GPIOCSR, reg); + /* * Initialize hw specifications. */ diff --git a/drivers/net/wireless/rt2x00/rt2400pci.h b/drivers/net/wireless/rt2x00/rt2400pci.h index d3a4a68cc439..7564ae992b73 100644 --- a/drivers/net/wireless/rt2x00/rt2400pci.h +++ b/drivers/net/wireless/rt2x00/rt2400pci.h @@ -670,6 +670,7 @@ #define GPIOCSR_BIT5 FIELD32(0x00000020) #define GPIOCSR_BIT6 FIELD32(0x00000040) #define GPIOCSR_BIT7 FIELD32(0x00000080) +#define GPIOCSR_BIT8 FIELD32(0x00000100) /* * BBPPCSR: BBP Pin control register. diff --git a/drivers/net/wireless/rt2x00/rt2500pci.c b/drivers/net/wireless/rt2x00/rt2500pci.c index d2cf8a4bc8b5..3de0406735f6 100644 --- a/drivers/net/wireless/rt2x00/rt2500pci.c +++ b/drivers/net/wireless/rt2x00/rt2500pci.c @@ -1929,6 +1929,7 @@ static int rt2500pci_probe_hw_mode(struct rt2x00_dev *rt2x00dev) static int rt2500pci_probe_hw(struct rt2x00_dev *rt2x00dev) { int retval; + u32 reg; /* * Allocate eeprom data. @@ -1941,6 +1942,14 @@ static int rt2500pci_probe_hw(struct rt2x00_dev *rt2x00dev) if (retval) return retval; + /* + * Enable rfkill polling by setting GPIO direction of the + * rfkill switch GPIO pin correctly. + */ + rt2x00pci_register_read(rt2x00dev, GPIOCSR, ®); + rt2x00_set_field32(®, GPIOCSR_DIR0, 1); + rt2x00pci_register_write(rt2x00dev, GPIOCSR, reg); + /* * Initialize hw specifications. */ diff --git a/drivers/net/wireless/rt2x00/rt2500usb.c b/drivers/net/wireless/rt2x00/rt2500usb.c index b3a1d732f3d1..89fee311d8fd 100644 --- a/drivers/net/wireless/rt2x00/rt2500usb.c +++ b/drivers/net/wireless/rt2x00/rt2500usb.c @@ -1768,6 +1768,7 @@ static int rt2500usb_probe_hw_mode(struct rt2x00_dev *rt2x00dev) static int rt2500usb_probe_hw(struct rt2x00_dev *rt2x00dev) { int retval; + u16 reg; /* * Allocate eeprom data. @@ -1780,6 +1781,14 @@ static int rt2500usb_probe_hw(struct rt2x00_dev *rt2x00dev) if (retval) return retval; + /* + * Enable rfkill polling by setting GPIO direction of the + * rfkill switch GPIO pin correctly. + */ + rt2500usb_register_read(rt2x00dev, MAC_CSR19, ®); + rt2x00_set_field16(®, MAC_CSR19_BIT8, 0); + rt2500usb_register_write(rt2x00dev, MAC_CSR19, reg); + /* * Initialize hw specifications. */ diff --git a/drivers/net/wireless/rt2x00/rt2500usb.h b/drivers/net/wireless/rt2x00/rt2500usb.h index 192531db0b65..196bd5103e4f 100644 --- a/drivers/net/wireless/rt2x00/rt2500usb.h +++ b/drivers/net/wireless/rt2x00/rt2500usb.h @@ -197,6 +197,7 @@ #define MAC_CSR19_BIT5 FIELD16(0x0020) #define MAC_CSR19_BIT6 FIELD16(0x0040) #define MAC_CSR19_BIT7 FIELD16(0x0080) +#define MAC_CSR19_BIT8 FIELD16(0x0100) /* * MAC_CSR20: LED control register. diff --git a/drivers/net/wireless/rt2x00/rt2800pci.c b/drivers/net/wireless/rt2x00/rt2800pci.c index 98aa426a3564..4765bbd654cd 100644 --- a/drivers/net/wireless/rt2x00/rt2800pci.c +++ b/drivers/net/wireless/rt2x00/rt2800pci.c @@ -983,6 +983,7 @@ static int rt2800pci_validate_eeprom(struct rt2x00_dev *rt2x00dev) static int rt2800pci_probe_hw(struct rt2x00_dev *rt2x00dev) { int retval; + u32 reg; /* * Allocate eeprom data. @@ -995,6 +996,14 @@ static int rt2800pci_probe_hw(struct rt2x00_dev *rt2x00dev) if (retval) return retval; + /* + * Enable rfkill polling by setting GPIO direction of the + * rfkill switch GPIO pin correctly. + */ + rt2x00pci_register_read(rt2x00dev, GPIO_CTRL_CFG, ®); + rt2x00_set_field32(®, GPIO_CTRL_CFG_GPIOD_BIT2, 1); + rt2x00pci_register_write(rt2x00dev, GPIO_CTRL_CFG, reg); + /* * Initialize hw specifications. */ diff --git a/drivers/net/wireless/rt2x00/rt2800usb.c b/drivers/net/wireless/rt2x00/rt2800usb.c index 6681bfc03201..52a32b5baea0 100644 --- a/drivers/net/wireless/rt2x00/rt2800usb.c +++ b/drivers/net/wireless/rt2x00/rt2800usb.c @@ -736,6 +736,7 @@ static int rt2800usb_validate_eeprom(struct rt2x00_dev *rt2x00dev) static int rt2800usb_probe_hw(struct rt2x00_dev *rt2x00dev) { int retval; + u32 reg; /* * Allocate eeprom data. @@ -748,6 +749,14 @@ static int rt2800usb_probe_hw(struct rt2x00_dev *rt2x00dev) if (retval) return retval; + /* + * Enable rfkill polling by setting GPIO direction of the + * rfkill switch GPIO pin correctly. + */ + rt2x00usb_register_read(rt2x00dev, GPIO_CTRL_CFG, ®); + rt2x00_set_field32(®, GPIO_CTRL_CFG_GPIOD_BIT2, 1); + rt2x00usb_register_write(rt2x00dev, GPIO_CTRL_CFG, reg); + /* * Initialize hw specifications. */ diff --git a/drivers/net/wireless/rt2x00/rt61pci.c b/drivers/net/wireless/rt2x00/rt61pci.c index 3f7bc5cadf9a..b8ec96163922 100644 --- a/drivers/net/wireless/rt2x00/rt61pci.c +++ b/drivers/net/wireless/rt2x00/rt61pci.c @@ -2832,6 +2832,7 @@ static int rt61pci_probe_hw_mode(struct rt2x00_dev *rt2x00dev) static int rt61pci_probe_hw(struct rt2x00_dev *rt2x00dev) { int retval; + u32 reg; /* * Disable power saving. @@ -2849,6 +2850,14 @@ static int rt61pci_probe_hw(struct rt2x00_dev *rt2x00dev) if (retval) return retval; + /* + * Enable rfkill polling by setting GPIO direction of the + * rfkill switch GPIO pin correctly. + */ + rt2x00pci_register_read(rt2x00dev, MAC_CSR13, ®); + rt2x00_set_field32(®, MAC_CSR13_BIT13, 1); + rt2x00pci_register_write(rt2x00dev, MAC_CSR13, reg); + /* * Initialize hw specifications. */ diff --git a/drivers/net/wireless/rt2x00/rt61pci.h b/drivers/net/wireless/rt2x00/rt61pci.h index e3cd6db76b0e..8f3da5a56766 100644 --- a/drivers/net/wireless/rt2x00/rt61pci.h +++ b/drivers/net/wireless/rt2x00/rt61pci.h @@ -372,6 +372,7 @@ struct hw_pairwise_ta_entry { #define MAC_CSR13_BIT10 FIELD32(0x00000400) #define MAC_CSR13_BIT11 FIELD32(0x00000800) #define MAC_CSR13_BIT12 FIELD32(0x00001000) +#define MAC_CSR13_BIT13 FIELD32(0x00002000) /* * MAC_CSR14: LED control register. diff --git a/drivers/net/wireless/rt2x00/rt73usb.c b/drivers/net/wireless/rt2x00/rt73usb.c index ba6e434b859d..248436c13ce0 100644 --- a/drivers/net/wireless/rt2x00/rt73usb.c +++ b/drivers/net/wireless/rt2x00/rt73usb.c @@ -2177,6 +2177,7 @@ static int rt73usb_probe_hw_mode(struct rt2x00_dev *rt2x00dev) static int rt73usb_probe_hw(struct rt2x00_dev *rt2x00dev) { int retval; + u32 reg; /* * Allocate eeprom data. @@ -2189,6 +2190,14 @@ static int rt73usb_probe_hw(struct rt2x00_dev *rt2x00dev) if (retval) return retval; + /* + * Enable rfkill polling by setting GPIO direction of the + * rfkill switch GPIO pin correctly. + */ + rt2x00usb_register_read(rt2x00dev, MAC_CSR13, ®); + rt2x00_set_field32(®, MAC_CSR13_BIT15, 0); + rt2x00usb_register_write(rt2x00dev, MAC_CSR13, reg); + /* * Initialize hw specifications. */ diff --git a/drivers/net/wireless/rt2x00/rt73usb.h b/drivers/net/wireless/rt2x00/rt73usb.h index 9f6b470414d3..df1cc116b83b 100644 --- a/drivers/net/wireless/rt2x00/rt73usb.h +++ b/drivers/net/wireless/rt2x00/rt73usb.h @@ -282,6 +282,9 @@ struct hw_pairwise_ta_entry { #define MAC_CSR13_BIT10 FIELD32(0x00000400) #define MAC_CSR13_BIT11 FIELD32(0x00000800) #define MAC_CSR13_BIT12 FIELD32(0x00001000) +#define MAC_CSR13_BIT13 FIELD32(0x00002000) +#define MAC_CSR13_BIT14 FIELD32(0x00004000) +#define MAC_CSR13_BIT15 FIELD32(0x00008000) /* * MAC_CSR14: LED control register. -- cgit v1.2.1 From efd5d6b03bd9c9e0df646c56fb5f4f3e25e5c1ac Mon Sep 17 00:00:00 2001 From: Sergei Poselenov Date: Sun, 2 Sep 2012 13:14:32 +0400 Subject: rt2800usb: Added rx packet length validity check On our system (ARM Cortex-M3 SOC running linux-2.6.33) frequent crashes were observed in the rt2800usb module because of the invalid length of the received packet (3392, 46920...). This patch adds the sanity check on the packet legth. Also, changed WARNING to ERROR in rt2x00lib_rxdone() so that the bad packet condition would be noticed. The fix was tested on the latest compat-wireless-3.5.1-1-snpc. Cc: stable@vger.kernel.org Signed-off-by: Sergei Poselenov Acked-by: Ivo van Doorn Signed-off-by: John W. Linville --- drivers/net/wireless/rt2x00/rt2800usb.c | 10 +++++++++- drivers/net/wireless/rt2x00/rt2x00dev.c | 2 +- 2 files changed, 10 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/rt2x00/rt2800usb.c b/drivers/net/wireless/rt2x00/rt2800usb.c index 52a32b5baea0..6b4226b71618 100644 --- a/drivers/net/wireless/rt2x00/rt2800usb.c +++ b/drivers/net/wireless/rt2x00/rt2800usb.c @@ -667,8 +667,16 @@ static void rt2800usb_fill_rxdone(struct queue_entry *entry, skb_pull(entry->skb, RXINFO_DESC_SIZE); /* - * FIXME: we need to check for rx_pkt_len validity + * Check for rx_pkt_len validity. Return if invalid, leaving + * rxdesc->size zeroed out by the upper level. */ + if (unlikely(rx_pkt_len == 0 || + rx_pkt_len > entry->queue->data_size)) { + ERROR(entry->queue->rt2x00dev, + "Bad frame size %d, forcing to 0\n", rx_pkt_len); + return; + } + rxd = (__le32 *)(entry->skb->data + rx_pkt_len); /* diff --git a/drivers/net/wireless/rt2x00/rt2x00dev.c b/drivers/net/wireless/rt2x00/rt2x00dev.c index a6b88bd4a1a5..3f07e36f462b 100644 --- a/drivers/net/wireless/rt2x00/rt2x00dev.c +++ b/drivers/net/wireless/rt2x00/rt2x00dev.c @@ -629,7 +629,7 @@ void rt2x00lib_rxdone(struct queue_entry *entry, gfp_t gfp) */ if (unlikely(rxdesc.size == 0 || rxdesc.size > entry->queue->data_size)) { - WARNING(rt2x00dev, "Wrong frame size %d max %d.\n", + ERROR(rt2x00dev, "Wrong frame size %d max %d.\n", rxdesc.size, entry->queue->data_size); dev_kfree_skb(entry->skb); goto renew_skb; -- cgit v1.2.1 From f10723841e624c0726c70356b31d91befed01dd6 Mon Sep 17 00:00:00 2001 From: Daniel Drake Date: Mon, 3 Sep 2012 15:49:09 -0400 Subject: libertas sdio: fix suspend when interface is down When the interface is down, the hardware is powered off. However, the suspend handler currently tries to send host sleep commands (when wakeup params are set) in this configuration, causing a system hang when going into suspend (the commands will never complete). Avoid this by detecting this situation and simply returning from the suspend handler without doing anything special. Signed-off-by: Daniel Drake Acked-by: Dan Williams Signed-off-by: John W. Linville --- drivers/net/wireless/libertas/if_sdio.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/net/wireless/libertas/if_sdio.c b/drivers/net/wireless/libertas/if_sdio.c index e970897f6ab5..4cb234349fbf 100644 --- a/drivers/net/wireless/libertas/if_sdio.c +++ b/drivers/net/wireless/libertas/if_sdio.c @@ -1326,6 +1326,11 @@ static int if_sdio_suspend(struct device *dev) mmc_pm_flag_t flags = sdio_get_host_pm_caps(func); + /* If we're powered off anyway, just let the mmc layer remove the + * card. */ + if (!lbs_iface_active(card->priv)) + return -ENOSYS; + dev_info(dev, "%s: suspend: PM flags = 0x%x\n", sdio_func_id(func), flags); -- cgit v1.2.1 From 6d7d9798ad5c97ee4e911dd070dc12dc5ae55bd0 Mon Sep 17 00:00:00 2001 From: Seth Jennings Date: Wed, 29 Aug 2012 16:58:45 -0500 Subject: staging: zcache: fix cleancache race condition with shrinker This patch fixes a race condition that results in memory corruption when using cleancache. The race exists between the zcache shrinker handler, shrink_zcache_memory() and cleancache_get_page(). In most cases, the shrinker will both evict a zbpg from its buddy list and flush it from tmem before a cleancache_get_page() occurs on that page. A subsequent cleancache_get_page() will fail in the tmem layer. In the rare case that two occur together and the cleancache_get_page() path gets through the tmem layer before the shrinker path can flush tmem, zbud_decompress() does a check to see if the zbpg is a "zombie", i.e. not on a buddy list, which means the shrinker is in the process of reclaiming it. If the zbpg is a zombie, zbud_decompress() returns -EINVAL. However, this return code is being ignored by the caller, zcache_pampd_get_data_and_free(), which results in the caller of cleancache_get_page() thinking that the page has been properly retrieved when it has not. This patch modifies zcache_pampd_get_data_and_free() to convey the failure up the stack so that the caller of cleancache_get_page() knows the page retrieval failed. This needs to be applied to stable trees as well. zcache-main.c was named zcache.c before v3.1, so I'm not sure how you want to handle trees earlier than that. Signed-off-by: Seth Jennings Cc: stable Reviewed-by: Konrad Rzeszutek Wilk Reviewed-by: Minchan Kim Signed-off-by: Greg Kroah-Hartman --- drivers/staging/zcache/zcache-main.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/drivers/staging/zcache/zcache-main.c b/drivers/staging/zcache/zcache-main.c index c214977b4ab4..52b43b7b83d7 100644 --- a/drivers/staging/zcache/zcache-main.c +++ b/drivers/staging/zcache/zcache-main.c @@ -1251,13 +1251,12 @@ static int zcache_pampd_get_data_and_free(char *data, size_t *bufsize, bool raw, void *pampd, struct tmem_pool *pool, struct tmem_oid *oid, uint32_t index) { - int ret = 0; - BUG_ON(!is_ephemeral(pool)); - zbud_decompress((struct page *)(data), pampd); + if (zbud_decompress((struct page *)(data), pampd) < 0) + return -EINVAL; zbud_free_and_delist((struct zbud_hdr *)pampd); atomic_dec(&zcache_curr_eph_pampd_count); - return ret; + return 0; } /* -- cgit v1.2.1 From 052c7f9ffb0e95843e75448d02664459253f9ff8 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Mon, 13 Aug 2012 19:57:03 +0300 Subject: xhci: Fix a logical vs bitwise AND bug The intent was to test whether the flag was set. This patch should be backported to stable kernels as old as 3.0, since it fixes a bug in commit e95829f474f0db3a4d940cae1423783edd966027 "xhci: Switch PPT ports to EHCI on shutdown.", which was marked for stable. Signed-off-by: Dan Carpenter Signed-off-by: Sarah Sharp Cc: stable@vger.kernel.org --- drivers/usb/host/xhci.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index c59d5b5b6c7d..617b0a77b2b4 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -659,7 +659,7 @@ void xhci_shutdown(struct usb_hcd *hcd) { struct xhci_hcd *xhci = hcd_to_xhci(hcd); - if (xhci->quirks && XHCI_SPURIOUS_REBOOT) + if (xhci->quirks & XHCI_SPURIOUS_REBOOT) usb_disable_xhci_ports(to_pci_dev(hcd->self.controller)); spin_lock_irq(&xhci->lock); -- cgit v1.2.1 From e955a1cd086de4d165ae0f4c7be7289d84b63bdc Mon Sep 17 00:00:00 2001 From: Matthew Garrett Date: Tue, 14 Aug 2012 16:44:49 -0400 Subject: xhci: Make handover code more robust My test platform (Intel DX79SI) boots reliably under BIOS, but frequently crashes when booting via UEFI. I finally tracked this down to the xhci handoff code. It seems that reads from the device occasionally just return 0xff, resulting in xhci_find_next_cap_offset generating a value that's larger than the resource region. We then oops when attempting to read the value. Sanity checking that value lets us avoid the crash. I've no idea what's causing the underlying problem, and xhci still doesn't actually *work* even with this, but the machine at least boots which will probably make further debugging easier. This should be backported to kernels as old as 2.6.31, that contain the commit 66d4eadd8d067269ea8fead1a50fe87c2979a80d "USB: xhci: BIOS handoff and HW initialization." Signed-off-by: Matthew Garrett Signed-off-by: Sarah Sharp Cc: stable@vger.kernel.org --- drivers/usb/host/pci-quirks.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c index 20b9f45f931c..966d1484ee79 100644 --- a/drivers/usb/host/pci-quirks.c +++ b/drivers/usb/host/pci-quirks.c @@ -841,12 +841,12 @@ static void __devinit quirk_usb_handoff_xhci(struct pci_dev *pdev) void __iomem *op_reg_base; u32 val; int timeout; + int len = pci_resource_len(pdev, 0); if (!mmio_resource_enabled(pdev, 0)) return; - base = ioremap_nocache(pci_resource_start(pdev, 0), - pci_resource_len(pdev, 0)); + base = ioremap_nocache(pci_resource_start(pdev, 0), len); if (base == NULL) return; @@ -856,9 +856,17 @@ static void __devinit quirk_usb_handoff_xhci(struct pci_dev *pdev) */ ext_cap_offset = xhci_find_next_cap_offset(base, XHCI_HCC_PARAMS_OFFSET); do { + if ((ext_cap_offset + sizeof(val)) > len) { + /* We're reading garbage from the controller */ + dev_warn(&pdev->dev, + "xHCI controller failing to respond"); + return; + } + if (!ext_cap_offset) /* We've reached the end of the extended capabilities */ goto hc_init; + val = readl(base + ext_cap_offset); if (XHCI_EXT_CAPS_ID(val) == XHCI_EXT_CAPS_LEGACY) break; -- cgit v1.2.1 From 71c731a296f1b08a3724bd1b514b64f1bda87a23 Mon Sep 17 00:00:00 2001 From: "Alexis R. Cortes" Date: Fri, 3 Aug 2012 14:00:27 -0500 Subject: usb: host: xhci: Fix Compliance Mode on SN65LVPE502CP Hardware This patch is intended to work around a known issue on the SN65LVPE502CP USB3.0 re-driver that can delay the negotiation between a device and the host past the usual handshake timeout. If that happens on the first insertion, the host controller port will enter in Compliance Mode and NO port status event will be generated (as per xHCI Spec) making impossible to detect this event by software. The port will remain in compliance mode until a warm reset is applied to it. As a result of this, the port will seem "dead" to the user and no device connections or disconnections will be detected. For solving this, the patch creates a timer which polls every 2 seconds the link state of each host controller's port (this by reading the PORTSC register) and recovers the port by issuing a Warm reset every time Compliance mode is detected. If a xHC USB3.0 port has previously entered to U0, the compliance mode issue will NOT occur only until system resumes from sleep/hibernate, therefore, the compliance mode timer is stopped when all xHC USB 3.0 ports have entered U0. The timer is initialized again after each system resume. Since the issue is being caused by a piece of hardware, the timer will be enabled ONLY on those systems that have the SN65LVPE502CP installed (this patch uses DMI strings for detecting those systems) therefore making this patch to act as a quirk (XHCI_COMP_MODE_QUIRK has been added to the xhci stack). This patch applies for these systems: Vendor: Hewlett-Packard. System Models: Z420, Z620 and Z820. This patch should be backported to kernels as old as 3.2, as that was the first kernel to support warm reset. The kernels will need to contain both commit 10d674a82e553cb8a1f41027bb3c3e309b3f6804 "USB: When hot reset for USB3 fails, try warm reset" and commit 8bea2bd37df08aaa599aa361a9f8b836ba98e554 "usb: Add support for root hub port status CAS". The first patch add warm reset support, and the second patch modifies the USB core to issue a warm reset when the port is in compliance mode. Signed-off-by: Alexis R. Cortes Signed-off-by: Sarah Sharp Cc: stable@vger.kernel.org --- drivers/usb/host/xhci-hub.c | 42 +++++++++++++++ drivers/usb/host/xhci.c | 121 ++++++++++++++++++++++++++++++++++++++++++++ drivers/usb/host/xhci.h | 6 +++ 3 files changed, 169 insertions(+) diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c index 74bfc868b7ad..d5eb357aa5c4 100644 --- a/drivers/usb/host/xhci-hub.c +++ b/drivers/usb/host/xhci-hub.c @@ -493,11 +493,48 @@ static void xhci_hub_report_link_state(u32 *status, u32 status_reg) * when this bit is set. */ pls |= USB_PORT_STAT_CONNECTION; + } else { + /* + * If CAS bit isn't set but the Port is already at + * Compliance Mode, fake a connection so the USB core + * notices the Compliance state and resets the port. + * This resolves an issue generated by the SN65LVPE502CP + * in which sometimes the port enters compliance mode + * caused by a delay on the host-device negotiation. + */ + if (pls == USB_SS_PORT_LS_COMP_MOD) + pls |= USB_PORT_STAT_CONNECTION; } + /* update status field */ *status |= pls; } +/* + * Function for Compliance Mode Quirk. + * + * This Function verifies if all xhc USB3 ports have entered U0, if so, + * the compliance mode timer is deleted. A port won't enter + * compliance mode if it has previously entered U0. + */ +void xhci_del_comp_mod_timer(struct xhci_hcd *xhci, u32 status, u16 wIndex) +{ + u32 all_ports_seen_u0 = ((1 << xhci->num_usb3_ports)-1); + bool port_in_u0 = ((status & PORT_PLS_MASK) == XDEV_U0); + + if (!(xhci->quirks & XHCI_COMP_MODE_QUIRK)) + return; + + if ((xhci->port_status_u0 != all_ports_seen_u0) && port_in_u0) { + xhci->port_status_u0 |= 1 << wIndex; + if (xhci->port_status_u0 == all_ports_seen_u0) { + del_timer_sync(&xhci->comp_mode_recovery_timer); + xhci_dbg(xhci, "All USB3 ports have entered U0 already!\n"); + xhci_dbg(xhci, "Compliance Mode Recovery Timer Deleted.\n"); + } + } +} + int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, u16 wIndex, char *buf, u16 wLength) { @@ -651,6 +688,11 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, /* Update Port Link State for super speed ports*/ if (hcd->speed == HCD_USB3) { xhci_hub_report_link_state(&status, temp); + /* + * Verify if all USB3 Ports Have entered U0 already. + * Delete Compliance Mode Timer if so. + */ + xhci_del_comp_mod_timer(xhci, temp, wIndex); } if (bus_state->port_c_suspend & (1 << wIndex)) status |= 1 << USB_PORT_FEAT_C_SUSPEND; diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 617b0a77b2b4..6ece0ed288d4 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -26,6 +26,7 @@ #include #include #include +#include #include "xhci.h" @@ -398,6 +399,95 @@ static void xhci_msix_sync_irqs(struct xhci_hcd *xhci) #endif +static void compliance_mode_recovery(unsigned long arg) +{ + struct xhci_hcd *xhci; + struct usb_hcd *hcd; + u32 temp; + int i; + + xhci = (struct xhci_hcd *)arg; + + for (i = 0; i < xhci->num_usb3_ports; i++) { + temp = xhci_readl(xhci, xhci->usb3_ports[i]); + if ((temp & PORT_PLS_MASK) == USB_SS_PORT_LS_COMP_MOD) { + /* + * Compliance Mode Detected. Letting USB Core + * handle the Warm Reset + */ + xhci_dbg(xhci, "Compliance Mode Detected->Port %d!\n", + i + 1); + xhci_dbg(xhci, "Attempting Recovery routine!\n"); + hcd = xhci->shared_hcd; + + if (hcd->state == HC_STATE_SUSPENDED) + usb_hcd_resume_root_hub(hcd); + + usb_hcd_poll_rh_status(hcd); + } + } + + if (xhci->port_status_u0 != ((1 << xhci->num_usb3_ports)-1)) + mod_timer(&xhci->comp_mode_recovery_timer, + jiffies + msecs_to_jiffies(COMP_MODE_RCVRY_MSECS)); +} + +/* + * Quirk to work around issue generated by the SN65LVPE502CP USB3.0 re-driver + * that causes ports behind that hardware to enter compliance mode sometimes. + * The quirk creates a timer that polls every 2 seconds the link state of + * each host controller's port and recovers it by issuing a Warm reset + * if Compliance mode is detected, otherwise the port will become "dead" (no + * device connections or disconnections will be detected anymore). Becasue no + * status event is generated when entering compliance mode (per xhci spec), + * this quirk is needed on systems that have the failing hardware installed. + */ +static void compliance_mode_recovery_timer_init(struct xhci_hcd *xhci) +{ + xhci->port_status_u0 = 0; + init_timer(&xhci->comp_mode_recovery_timer); + + xhci->comp_mode_recovery_timer.data = (unsigned long) xhci; + xhci->comp_mode_recovery_timer.function = compliance_mode_recovery; + xhci->comp_mode_recovery_timer.expires = jiffies + + msecs_to_jiffies(COMP_MODE_RCVRY_MSECS); + + set_timer_slack(&xhci->comp_mode_recovery_timer, + msecs_to_jiffies(COMP_MODE_RCVRY_MSECS)); + add_timer(&xhci->comp_mode_recovery_timer); + xhci_dbg(xhci, "Compliance Mode Recovery Timer Initialized.\n"); +} + +/* + * This function identifies the systems that have installed the SN65LVPE502CP + * USB3.0 re-driver and that need the Compliance Mode Quirk. + * Systems: + * Vendor: Hewlett-Packard -> System Models: Z420, Z620 and Z820 + */ +static bool compliance_mode_recovery_timer_quirk_check(void) +{ + const char *dmi_product_name, *dmi_sys_vendor; + + dmi_product_name = dmi_get_system_info(DMI_PRODUCT_NAME); + dmi_sys_vendor = dmi_get_system_info(DMI_SYS_VENDOR); + + if (!(strstr(dmi_sys_vendor, "Hewlett-Packard"))) + return false; + + if (strstr(dmi_product_name, "Z420") || + strstr(dmi_product_name, "Z620") || + strstr(dmi_product_name, "Z820")) + return true; + + return false; +} + +static int xhci_all_ports_seen_u0(struct xhci_hcd *xhci) +{ + return (xhci->port_status_u0 == ((1 << xhci->num_usb3_ports)-1)); +} + + /* * Initialize memory for HCD and xHC (one-time init). * @@ -421,6 +511,12 @@ int xhci_init(struct usb_hcd *hcd) retval = xhci_mem_init(xhci, GFP_KERNEL); xhci_dbg(xhci, "Finished xhci_init\n"); + /* Initializing Compliance Mode Recovery Data If Needed */ + if (compliance_mode_recovery_timer_quirk_check()) { + xhci->quirks |= XHCI_COMP_MODE_QUIRK; + compliance_mode_recovery_timer_init(xhci); + } + return retval; } @@ -629,6 +725,11 @@ void xhci_stop(struct usb_hcd *hcd) del_timer_sync(&xhci->event_ring_timer); #endif + /* Deleting Compliance Mode Recovery Timer */ + if ((xhci->quirks & XHCI_COMP_MODE_QUIRK) && + (!(xhci_all_ports_seen_u0(xhci)))) + del_timer_sync(&xhci->comp_mode_recovery_timer); + if (xhci->quirks & XHCI_AMD_PLL_FIX) usb_amd_dev_put(); @@ -806,6 +907,16 @@ int xhci_suspend(struct xhci_hcd *xhci) } spin_unlock_irq(&xhci->lock); + /* + * Deleting Compliance Mode Recovery Timer because the xHCI Host + * is about to be suspended. + */ + if ((xhci->quirks & XHCI_COMP_MODE_QUIRK) && + (!(xhci_all_ports_seen_u0(xhci)))) { + del_timer_sync(&xhci->comp_mode_recovery_timer); + xhci_dbg(xhci, "Compliance Mode Recovery Timer Deleted!\n"); + } + /* step 5: remove core well power */ /* synchronize irq when using MSI-X */ xhci_msix_sync_irqs(xhci); @@ -938,6 +1049,16 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated) usb_hcd_resume_root_hub(hcd); usb_hcd_resume_root_hub(xhci->shared_hcd); } + + /* + * If system is subject to the Quirk, Compliance Mode Timer needs to + * be re-initialized Always after a system resume. Ports are subject + * to suffer the Compliance Mode issue again. It doesn't matter if + * ports have entered previously to U0 before system's suspension. + */ + if (xhci->quirks & XHCI_COMP_MODE_QUIRK) + compliance_mode_recovery_timer_init(xhci); + return retval; } #endif /* CONFIG_PM */ diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index c713256297ac..1a05908c6673 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -1495,6 +1495,7 @@ struct xhci_hcd { #define XHCI_LPM_SUPPORT (1 << 11) #define XHCI_INTEL_HOST (1 << 12) #define XHCI_SPURIOUS_REBOOT (1 << 13) +#define XHCI_COMP_MODE_QUIRK (1 << 14) unsigned int num_active_eps; unsigned int limit_active_eps; /* There are two roothubs to keep track of bus suspend info for */ @@ -1511,6 +1512,11 @@ struct xhci_hcd { unsigned sw_lpm_support:1; /* support xHCI 1.0 spec USB2 hardware LPM */ unsigned hw_lpm_support:1; + /* Compliance Mode Recovery Data */ + struct timer_list comp_mode_recovery_timer; + u32 port_status_u0; +/* Compliance Mode Timer Triggered every 2 seconds */ +#define COMP_MODE_RCVRY_MSECS 2000 }; /* convert between an HCD pointer and the corresponding EHCI_HCD */ -- cgit v1.2.1 From 319acdfc064169023cd9ada5085b434fbcdacec2 Mon Sep 17 00:00:00 2001 From: Ruchika Kharwar Date: Fri, 10 Aug 2012 09:58:30 +0300 Subject: usb: host: xhci-plat: use ioremap_nocache Use the ioremap_nocache variant of the ioremap API in order to make sure our memory will be marked uncachable. This patch should be backported to kernels as old as 3.4, that contain the commit 3429e91a661e1f383aecc86c6bbcf65afb15c892 "usb: host: xhci: add platform driver support". Signed-off-by: Ruchika Kharwar Signed-off-by: Felipe Balbi Signed-off-by: Sarah Sharp Cc: stable@vger.kernel.org --- drivers/usb/host/xhci-plat.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c index 689bc18b051d..df90fe51b4aa 100644 --- a/drivers/usb/host/xhci-plat.c +++ b/drivers/usb/host/xhci-plat.c @@ -118,7 +118,7 @@ static int xhci_plat_probe(struct platform_device *pdev) goto put_hcd; } - hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len); + hcd->regs = ioremap_nocache(hcd->rsrc_start, hcd->rsrc_len); if (!hcd->regs) { dev_dbg(&pdev->dev, "error mapping memory\n"); ret = -EFAULT; -- cgit v1.2.1 From 296365781903226a3fb8758901eaeec09d2798e4 Mon Sep 17 00:00:00 2001 From: Moiz Sonasath Date: Wed, 5 Sep 2012 08:34:26 +0300 Subject: usb: host: xhci: fix compilation error for non-PCI based stacks For non PCI-based stacks, this function call usb_disable_xhci_ports(to_pci_dev(hcd->self.controller)); made from xhci_shutdown is not applicable. Ideally, we wouldn't have any PCI-specific code on a generic driver such as the xHCI stack, but it looks like we should just stub usb_disable_xhci_ports() out for non-PCI devices. [ balbi@ti.com: slight improvement to commit log ] This patch should be backported to kernels as old as 3.0, since the commit it fixes (e95829f474f0db3a4d940cae1423783edd966027 "xhci: Switch PPT ports to EHCI on shutdown.") was marked for stable. Signed-off-by: Moiz Sonasath Signed-off-by: Ruchika Kharwar Signed-off-by: Felipe Balbi Signed-off-by: Sarah Sharp Cc: stable@vger.kernel.org --- drivers/usb/host/pci-quirks.h | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/usb/host/pci-quirks.h b/drivers/usb/host/pci-quirks.h index ef004a5de20f..7f69a39163ce 100644 --- a/drivers/usb/host/pci-quirks.h +++ b/drivers/usb/host/pci-quirks.h @@ -15,6 +15,7 @@ void usb_disable_xhci_ports(struct pci_dev *xhci_pdev); static inline void usb_amd_quirk_pll_disable(void) {} static inline void usb_amd_quirk_pll_enable(void) {} static inline void usb_amd_dev_put(void) {} +static inline void usb_disable_xhci_ports(struct pci_dev *xhci_pdev) {} #endif /* CONFIG_PCI */ #endif /* __LINUX_USB_PCI_QUIRKS_H */ -- cgit v1.2.1 From 9ec1882df244c4ee1baa692676fef5e8b0f5487d Mon Sep 17 00:00:00 2001 From: Xinyu Chen Date: Mon, 27 Aug 2012 09:36:51 +0200 Subject: tty: serial: imx: console write routing is unsafe on SMP The console feature's write routing is unsafe on SMP with the startup/shutdown call. There could be several consumers of the console * the kernel printk * the init process using /dev/kmsg to call printk to show log * shell, which open /dev/console and write with sys_write() The shell goes into the normal uart open/write routing, but the other two go into the console operations. The open routing calls imx serial startup, which will write USR1/2 register without any lock and critical with imx_console_write call. Add a spin_lock for startup/shutdown/console_write routing. This patch is a port from Freescale's Android kernel. Signed-off-by: Xinyu Chen Tested-by: Dirk Behme CC: Sascha Hauer Acked-by: Shawn Guo Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/imx.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c index d5c689d6217e..908178fc5a33 100644 --- a/drivers/tty/serial/imx.c +++ b/drivers/tty/serial/imx.c @@ -754,6 +754,7 @@ static int imx_startup(struct uart_port *port) } } + spin_lock_irqsave(&sport->port.lock, flags); /* * Finally, clear and enable interrupts */ @@ -807,7 +808,6 @@ static int imx_startup(struct uart_port *port) /* * Enable modem status interrupts */ - spin_lock_irqsave(&sport->port.lock,flags); imx_enable_ms(&sport->port); spin_unlock_irqrestore(&sport->port.lock,flags); @@ -837,10 +837,13 @@ static void imx_shutdown(struct uart_port *port) { struct imx_port *sport = (struct imx_port *)port; unsigned long temp; + unsigned long flags; + spin_lock_irqsave(&sport->port.lock, flags); temp = readl(sport->port.membase + UCR2); temp &= ~(UCR2_TXEN); writel(temp, sport->port.membase + UCR2); + spin_unlock_irqrestore(&sport->port.lock, flags); if (USE_IRDA(sport)) { struct imxuart_platform_data *pdata; @@ -869,12 +872,14 @@ static void imx_shutdown(struct uart_port *port) * Disable all interrupts, port and break condition. */ + spin_lock_irqsave(&sport->port.lock, flags); temp = readl(sport->port.membase + UCR1); temp &= ~(UCR1_TXMPTYEN | UCR1_RRDYEN | UCR1_RTSDEN | UCR1_UARTEN); if (USE_IRDA(sport)) temp &= ~(UCR1_IREN); writel(temp, sport->port.membase + UCR1); + spin_unlock_irqrestore(&sport->port.lock, flags); } static void @@ -1217,6 +1222,9 @@ imx_console_write(struct console *co, const char *s, unsigned int count) struct imx_port *sport = imx_ports[co->index]; struct imx_port_ucrs old_ucr; unsigned int ucr1; + unsigned long flags; + + spin_lock_irqsave(&sport->port.lock, flags); /* * First, save UCR1/2/3 and then disable interrupts @@ -1242,6 +1250,8 @@ imx_console_write(struct console *co, const char *s, unsigned int count) while (!(readl(sport->port.membase + USR2) & USR2_TXDC)); imx_port_ucrs_restore(&sport->port, &old_ucr); + + spin_unlock_irqrestore(&sport->port.lock, flags); } /* -- cgit v1.2.1 From 7be0670f7b9198382938a03ff3db7f47ef6b4780 Mon Sep 17 00:00:00 2001 From: Dirk Behme Date: Fri, 31 Aug 2012 10:02:47 +0200 Subject: tty: serial: imx: don't reinit clock in imx_setup_ufcr() Remove the clock configuration from imx_setup_ufcr(). This isn't needed here and will cause garbage output if done. To be be sure that we only touch the bits we want (TXTL and RXTL) we have to mask out all other bits of the UFCR register. Add one non-existing bit macro for this, too (bit 6, DCEDTE on i.MX6). Signed-off-by: Dirk Behme CC: Shawn Guo CC: Sascha Hauer CC: Troy Kisky CC: Xinyu Chen Cc: stable Acked-by: Shawn Guo Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/imx.c | 18 ++++-------------- 1 file changed, 4 insertions(+), 14 deletions(-) diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c index 908178fc5a33..e309e8b0aaba 100644 --- a/drivers/tty/serial/imx.c +++ b/drivers/tty/serial/imx.c @@ -132,6 +132,7 @@ #define UCR4_OREN (1<<1) /* Receiver overrun interrupt enable */ #define UCR4_DREN (1<<0) /* Recv data ready interrupt enable */ #define UFCR_RXTL_SHF 0 /* Receiver trigger level shift */ +#define UFCR_DCEDTE (1<<6) /* DCE/DTE mode select */ #define UFCR_RFDIV (7<<7) /* Reference freq divider mask */ #define UFCR_RFDIV_REG(x) (((x) < 7 ? 6 - (x) : 6) << 7) #define UFCR_TXTL_SHF 10 /* Transmitter trigger level shift */ @@ -667,22 +668,11 @@ static void imx_break_ctl(struct uart_port *port, int break_state) static int imx_setup_ufcr(struct imx_port *sport, unsigned int mode) { unsigned int val; - unsigned int ufcr_rfdiv; - - /* set receiver / transmitter trigger level. - * RFDIV is set such way to satisfy requested uartclk value - */ - val = TXTL << 10 | RXTL; - ufcr_rfdiv = (clk_get_rate(sport->clk_per) + sport->port.uartclk / 2) - / sport->port.uartclk; - - if(!ufcr_rfdiv) - ufcr_rfdiv = 1; - - val |= UFCR_RFDIV_REG(ufcr_rfdiv); + /* set receiver / transmitter trigger level */ + val = readl(sport->port.membase + UFCR) & (UFCR_RFDIV | UFCR_DCEDTE); + val |= TXTL << UFCR_TXTL_SHF | RXTL; writel(val, sport->port.membase + UFCR); - return 0; } -- cgit v1.2.1 From 804d74abe2e3f361ead5c5c6850d5b1ab0203862 Mon Sep 17 00:00:00 2001 From: Keith Packard Date: Mon, 9 Jul 2012 15:40:07 -0700 Subject: drm: use drm_compat_ioctl for 32-bit apps Most of the DRM drivers appear to be missing the .compat_ioctl file operation entry necessary for 32-bit application compatibility. This patch uses drm_compat_ioctl for all drivers which don't have their own, and which are using drm_ioctl for .unlocked_ioctl. This leaves drivers/gpu/drm/psb/psb_drv.c unchanged; it has a custom .unlocked_ioctl and will presumably need a custom .compat_ioctl as well. Signed-off-by: Keith Packard Signed-off-by: Dave Airlie --- drivers/gpu/drm/ast/ast_drv.c | 3 +++ drivers/gpu/drm/cirrus/cirrus_drv.c | 3 +++ drivers/gpu/drm/exynos/exynos_drm_drv.c | 3 +++ drivers/gpu/drm/i810/i810_dma.c | 3 +++ drivers/gpu/drm/i810/i810_drv.c | 3 +++ drivers/gpu/drm/mgag200/mgag200_drv.c | 3 +++ drivers/gpu/drm/savage/savage_drv.c | 3 +++ drivers/gpu/drm/sis/sis_drv.c | 3 +++ drivers/gpu/drm/tdfx/tdfx_drv.c | 3 +++ drivers/gpu/drm/udl/udl_drv.c | 3 +++ drivers/gpu/drm/via/via_drv.c | 3 +++ 11 files changed, 33 insertions(+) diff --git a/drivers/gpu/drm/ast/ast_drv.c b/drivers/gpu/drm/ast/ast_drv.c index d0c4574ef49c..36164806b9d4 100644 --- a/drivers/gpu/drm/ast/ast_drv.c +++ b/drivers/gpu/drm/ast/ast_drv.c @@ -193,6 +193,9 @@ static const struct file_operations ast_fops = { .mmap = ast_mmap, .poll = drm_poll, .fasync = drm_fasync, +#ifdef CONFIG_COMPAT + .compat_ioctl = drm_compat_ioctl, +#endif .read = drm_read, }; diff --git a/drivers/gpu/drm/cirrus/cirrus_drv.c b/drivers/gpu/drm/cirrus/cirrus_drv.c index 7053140c6596..b83a2d7ddd1a 100644 --- a/drivers/gpu/drm/cirrus/cirrus_drv.c +++ b/drivers/gpu/drm/cirrus/cirrus_drv.c @@ -74,6 +74,9 @@ static const struct file_operations cirrus_driver_fops = { .unlocked_ioctl = drm_ioctl, .mmap = cirrus_mmap, .poll = drm_poll, +#ifdef CONFIG_COMPAT + .compat_ioctl = drm_compat_ioctl, +#endif .fasync = drm_fasync, }; static struct drm_driver driver = { diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c index ebacec6f1e48..6345abe9fdee 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_drv.c +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c @@ -241,6 +241,9 @@ static const struct file_operations exynos_drm_driver_fops = { .poll = drm_poll, .read = drm_read, .unlocked_ioctl = drm_ioctl, +#ifdef CONFIG_COMPAT + .compat_ioctl = drm_compat_ioctl, +#endif .release = drm_release, }; diff --git a/drivers/gpu/drm/i810/i810_dma.c b/drivers/gpu/drm/i810/i810_dma.c index 57d892eaaa6e..463ec6871fe9 100644 --- a/drivers/gpu/drm/i810/i810_dma.c +++ b/drivers/gpu/drm/i810/i810_dma.c @@ -115,6 +115,9 @@ static const struct file_operations i810_buffer_fops = { .unlocked_ioctl = drm_ioctl, .mmap = i810_mmap_buffers, .fasync = drm_fasync, +#ifdef CONFIG_COMPAT + .compat_ioctl = drm_compat_ioctl, +#endif .llseek = noop_llseek, }; diff --git a/drivers/gpu/drm/i810/i810_drv.c b/drivers/gpu/drm/i810/i810_drv.c index f9924ad04d09..48cfcca2b350 100644 --- a/drivers/gpu/drm/i810/i810_drv.c +++ b/drivers/gpu/drm/i810/i810_drv.c @@ -51,6 +51,9 @@ static const struct file_operations i810_driver_fops = { .mmap = drm_mmap, .poll = drm_poll, .fasync = drm_fasync, +#ifdef CONFIG_COMPAT + .compat_ioctl = drm_compat_ioctl, +#endif .llseek = noop_llseek, }; diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.c b/drivers/gpu/drm/mgag200/mgag200_drv.c index ea1024d79974..e5f145d2cb3b 100644 --- a/drivers/gpu/drm/mgag200/mgag200_drv.c +++ b/drivers/gpu/drm/mgag200/mgag200_drv.c @@ -84,6 +84,9 @@ static const struct file_operations mgag200_driver_fops = { .mmap = mgag200_mmap, .poll = drm_poll, .fasync = drm_fasync, +#ifdef CONFIG_COMPAT + .compat_ioctl = drm_compat_ioctl, +#endif .read = drm_read, }; diff --git a/drivers/gpu/drm/savage/savage_drv.c b/drivers/gpu/drm/savage/savage_drv.c index d31d4cca9a4c..c5a164337bd5 100644 --- a/drivers/gpu/drm/savage/savage_drv.c +++ b/drivers/gpu/drm/savage/savage_drv.c @@ -43,6 +43,9 @@ static const struct file_operations savage_driver_fops = { .mmap = drm_mmap, .poll = drm_poll, .fasync = drm_fasync, +#ifdef CONFIG_COMPAT + .compat_ioctl = drm_compat_ioctl, +#endif .llseek = noop_llseek, }; diff --git a/drivers/gpu/drm/sis/sis_drv.c b/drivers/gpu/drm/sis/sis_drv.c index 7f119870147c..867dc03000e6 100644 --- a/drivers/gpu/drm/sis/sis_drv.c +++ b/drivers/gpu/drm/sis/sis_drv.c @@ -74,6 +74,9 @@ static const struct file_operations sis_driver_fops = { .mmap = drm_mmap, .poll = drm_poll, .fasync = drm_fasync, +#ifdef CONFIG_COMPAT + .compat_ioctl = drm_compat_ioctl, +#endif .llseek = noop_llseek, }; diff --git a/drivers/gpu/drm/tdfx/tdfx_drv.c b/drivers/gpu/drm/tdfx/tdfx_drv.c index 90f6b13acfac..a7f4d6bd1330 100644 --- a/drivers/gpu/drm/tdfx/tdfx_drv.c +++ b/drivers/gpu/drm/tdfx/tdfx_drv.c @@ -49,6 +49,9 @@ static const struct file_operations tdfx_driver_fops = { .mmap = drm_mmap, .poll = drm_poll, .fasync = drm_fasync, +#ifdef CONFIG_COMPAT + .compat_ioctl = drm_compat_ioctl, +#endif .llseek = noop_llseek, }; diff --git a/drivers/gpu/drm/udl/udl_drv.c b/drivers/gpu/drm/udl/udl_drv.c index 6e52069894b3..9f84128505bb 100644 --- a/drivers/gpu/drm/udl/udl_drv.c +++ b/drivers/gpu/drm/udl/udl_drv.c @@ -66,6 +66,9 @@ static const struct file_operations udl_driver_fops = { .unlocked_ioctl = drm_ioctl, .release = drm_release, .fasync = drm_fasync, +#ifdef CONFIG_COMPAT + .compat_ioctl = drm_compat_ioctl, +#endif .llseek = noop_llseek, }; diff --git a/drivers/gpu/drm/via/via_drv.c b/drivers/gpu/drm/via/via_drv.c index e927b4c052f5..af1b914b17e3 100644 --- a/drivers/gpu/drm/via/via_drv.c +++ b/drivers/gpu/drm/via/via_drv.c @@ -65,6 +65,9 @@ static const struct file_operations via_driver_fops = { .mmap = drm_mmap, .poll = drm_poll, .fasync = drm_fasync, +#ifdef CONFIG_COMPAT + .compat_ioctl = drm_compat_ioctl, +#endif .llseek = noop_llseek, }; -- cgit v1.2.1 From d013ef2aba8fe765ca683598e404203215632373 Mon Sep 17 00:00:00 2001 From: Julian Anastasov Date: Wed, 5 Sep 2012 10:53:18 +0000 Subject: tcp: fix possible socket refcount problem for ipv6 commit 144d56e91044181ec0ef67aeca91e9a8b5718348 ("tcp: fix possible socket refcount problem") is missing the IPv6 part. As tcp_release_cb is shared by both protocols we should hold sock reference for the TCP_MTU_REDUCED_DEFERRED bit. Signed-off-by: Julian Anastasov Acked-by: Eric Dumazet Signed-off-by: David S. Miller --- net/ipv6/tcp_ipv6.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index a3e60cc04a8a..acd32e3f1b68 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -403,8 +403,9 @@ static void tcp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt, tp->mtu_info = ntohl(info); if (!sock_owned_by_user(sk)) tcp_v6_mtu_reduced(sk); - else - set_bit(TCP_MTU_REDUCED_DEFERRED, &tp->tsq_flags); + else if (!test_and_set_bit(TCP_MTU_REDUCED_DEFERRED, + &tp->tsq_flags)) + sock_hold(sk); goto out; } -- cgit v1.2.1 From d90c92fee89ccd75ef2646f3bde0b4c0450666c3 Mon Sep 17 00:00:00 2001 From: Santiago Leon Date: Tue, 4 Sep 2012 14:41:37 +0000 Subject: ibmveth: Fix alignment of rx queue bug This patch fixes a bug found by Nish Aravamudan (https://lkml.org/lkml/2012/5/15/220) where the driver is not following the spec (it is not aligning the rx buffer on a 16-byte boundary) and the hypervisor aborts the registration, making the device unusable. The fix follows BenH's recommendation (https://lkml.org/lkml/2012/7/20/461) to replace the kmalloc+map for a single call to dma_alloc_coherent() because that function always aligns to a 16-byte boundary. The stable trees will run into this bug whenever the rx buffer kmalloc call returns something not aligned on a 16-byte boundary. Cc: Signed-off-by: Santiago Leon Signed-off-by: David S. Miller --- drivers/net/ethernet/ibm/ibmveth.c | 26 +++++++++----------------- 1 file changed, 9 insertions(+), 17 deletions(-) diff --git a/drivers/net/ethernet/ibm/ibmveth.c b/drivers/net/ethernet/ibm/ibmveth.c index 9010cea68bc3..b68d28a130e6 100644 --- a/drivers/net/ethernet/ibm/ibmveth.c +++ b/drivers/net/ethernet/ibm/ibmveth.c @@ -472,14 +472,9 @@ static void ibmveth_cleanup(struct ibmveth_adapter *adapter) } if (adapter->rx_queue.queue_addr != NULL) { - if (!dma_mapping_error(dev, adapter->rx_queue.queue_dma)) { - dma_unmap_single(dev, - adapter->rx_queue.queue_dma, - adapter->rx_queue.queue_len, - DMA_BIDIRECTIONAL); - adapter->rx_queue.queue_dma = DMA_ERROR_CODE; - } - kfree(adapter->rx_queue.queue_addr); + dma_free_coherent(dev, adapter->rx_queue.queue_len, + adapter->rx_queue.queue_addr, + adapter->rx_queue.queue_dma); adapter->rx_queue.queue_addr = NULL; } @@ -556,10 +551,13 @@ static int ibmveth_open(struct net_device *netdev) goto err_out; } + dev = &adapter->vdev->dev; + adapter->rx_queue.queue_len = sizeof(struct ibmveth_rx_q_entry) * rxq_entries; - adapter->rx_queue.queue_addr = kmalloc(adapter->rx_queue.queue_len, - GFP_KERNEL); + adapter->rx_queue.queue_addr = + dma_alloc_coherent(dev, adapter->rx_queue.queue_len, + &adapter->rx_queue.queue_dma, GFP_KERNEL); if (!adapter->rx_queue.queue_addr) { netdev_err(netdev, "unable to allocate rx queue pages\n"); @@ -567,19 +565,13 @@ static int ibmveth_open(struct net_device *netdev) goto err_out; } - dev = &adapter->vdev->dev; - adapter->buffer_list_dma = dma_map_single(dev, adapter->buffer_list_addr, 4096, DMA_BIDIRECTIONAL); adapter->filter_list_dma = dma_map_single(dev, adapter->filter_list_addr, 4096, DMA_BIDIRECTIONAL); - adapter->rx_queue.queue_dma = dma_map_single(dev, - adapter->rx_queue.queue_addr, - adapter->rx_queue.queue_len, DMA_BIDIRECTIONAL); if ((dma_mapping_error(dev, adapter->buffer_list_dma)) || - (dma_mapping_error(dev, adapter->filter_list_dma)) || - (dma_mapping_error(dev, adapter->rx_queue.queue_dma))) { + (dma_mapping_error(dev, adapter->filter_list_dma))) { netdev_err(netdev, "unable to map filter or buffer list " "pages\n"); rc = -ENOMEM; -- cgit v1.2.1 From 4758be37c01c658dec5c0ad08d456fa031493de4 Mon Sep 17 00:00:00 2001 From: Heather Lomond Date: Wed, 5 Sep 2012 05:02:10 -0400 Subject: ASoC: arizona: Fix typo in 44.1kHz rates Signed-off-by: Heather Lomond Signed-off-by: Mark Brown --- sound/soc/codecs/arizona.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/codecs/arizona.c b/sound/soc/codecs/arizona.c index 5c9cacaf2d52..1cf7a32d1b21 100644 --- a/sound/soc/codecs/arizona.c +++ b/sound/soc/codecs/arizona.c @@ -426,7 +426,7 @@ static const int arizona_44k1_bclk_rates[] = { 940800, 1411200, 1881600, - 2882400, + 2822400, 3763200, 5644800, 7526400, -- cgit v1.2.1 From 90beca5de591e12482a812f23a7f10690962ed4a Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Tue, 4 Sep 2012 23:12:33 -0700 Subject: workqueue: move WORKER_REBIND clearing in rebind_workers() to the end of the function This doesn't make any functional difference and is purely to help the next patch to be simpler. Signed-off-by: Tejun Heo Cc: Lai Jiangshan --- kernel/workqueue.c | 26 +++++++++++++------------- 1 file changed, 13 insertions(+), 13 deletions(-) diff --git a/kernel/workqueue.c b/kernel/workqueue.c index c462cd60c374..d79a18d0c42e 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -1422,19 +1422,7 @@ retry: goto retry; } - /* - * All idle workers are rebound and waiting for %WORKER_REBIND to - * be cleared inside idle_worker_rebind(). Clear and release. - * Clearing %WORKER_REBIND from this foreign context is safe - * because these workers are still guaranteed to be idle. - */ - for_each_worker_pool(pool, gcwq) - list_for_each_entry(worker, &pool->idle_list, entry) - worker->flags &= ~WORKER_REBIND; - - wake_up_all(&gcwq->rebind_hold); - - /* rebind busy workers */ + /* all idle workers are rebound, rebind busy workers */ for_each_busy_worker(worker, i, pos, gcwq) { struct work_struct *rebind_work = &worker->rebind_work; unsigned long worker_flags = worker->flags; @@ -1454,6 +1442,18 @@ retry: worker->scheduled.next, work_color_to_flags(WORK_NO_COLOR)); } + + /* + * All idle workers are rebound and waiting for %WORKER_REBIND to + * be cleared inside idle_worker_rebind(). Clear and release. + * Clearing %WORKER_REBIND from this foreign context is safe + * because these workers are still guaranteed to be idle. + */ + for_each_worker_pool(pool, gcwq) + list_for_each_entry(worker, &pool->idle_list, entry) + worker->flags &= ~WORKER_REBIND; + + wake_up_all(&gcwq->rebind_hold); } static struct worker *alloc_worker(void) -- cgit v1.2.1 From ec58815ab0409a921a7c9744eb4ca44866b14d71 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Tue, 4 Sep 2012 23:16:32 -0700 Subject: workqueue: fix possible deadlock in idle worker rebinding Currently, rebind_workers() and idle_worker_rebind() are two-way interlocked. rebind_workers() waits for idle workers to finish rebinding and rebound idle workers wait for rebind_workers() to finish rebinding busy workers before proceeding. Unfortunately, this isn't enough. The second wait from idle workers is implemented as follows. wait_event(gcwq->rebind_hold, !(worker->flags & WORKER_REBIND)); rebind_workers() clears WORKER_REBIND, wakes up the idle workers and then returns. If CPU hotplug cycle happens again before one of the idle workers finishes the above wait_event(), rebind_workers() will repeat the first part of the handshake - set WORKER_REBIND again and wait for the idle worker to finish rebinding - and this leads to deadlock because the idle worker would be waiting for WORKER_REBIND to clear. This is fixed by adding another interlocking step at the end - rebind_workers() now waits for all the idle workers to finish the above WORKER_REBIND wait before returning. This ensures that all rebinding steps are complete on all idle workers before the next hotplug cycle can happen. This problem was diagnosed by Lai Jiangshan who also posted a patch to fix the issue, upon which this patch is based. This is the minimal fix and further patches are scheduled for the next merge window to simplify the CPU hotplug path. Signed-off-by: Tejun Heo Original-patch-by: Lai Jiangshan LKML-Reference: <1346516916-1991-3-git-send-email-laijs@cn.fujitsu.com> --- kernel/workqueue.c | 29 +++++++++++++++++++++++++++-- 1 file changed, 27 insertions(+), 2 deletions(-) diff --git a/kernel/workqueue.c b/kernel/workqueue.c index d79a18d0c42e..dc7b8458e275 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -1326,6 +1326,15 @@ static void idle_worker_rebind(struct worker *worker) /* we did our part, wait for rebind_workers() to finish up */ wait_event(gcwq->rebind_hold, !(worker->flags & WORKER_REBIND)); + + /* + * rebind_workers() shouldn't finish until all workers passed the + * above WORKER_REBIND wait. Tell it when done. + */ + spin_lock_irq(&worker->pool->gcwq->lock); + if (!--worker->idle_rebind->cnt) + complete(&worker->idle_rebind->done); + spin_unlock_irq(&worker->pool->gcwq->lock); } /* @@ -1448,12 +1457,28 @@ retry: * be cleared inside idle_worker_rebind(). Clear and release. * Clearing %WORKER_REBIND from this foreign context is safe * because these workers are still guaranteed to be idle. + * + * We need to make sure all idle workers passed WORKER_REBIND wait + * in idle_worker_rebind() before returning; otherwise, workers can + * get stuck at the wait if hotplug cycle repeats. */ - for_each_worker_pool(pool, gcwq) - list_for_each_entry(worker, &pool->idle_list, entry) + idle_rebind.cnt = 1; + INIT_COMPLETION(idle_rebind.done); + + for_each_worker_pool(pool, gcwq) { + list_for_each_entry(worker, &pool->idle_list, entry) { worker->flags &= ~WORKER_REBIND; + idle_rebind.cnt++; + } + } wake_up_all(&gcwq->rebind_hold); + + if (--idle_rebind.cnt) { + spin_unlock_irq(&gcwq->lock); + wait_for_completion(&idle_rebind.done); + spin_lock_irq(&gcwq->lock); + } } static struct worker *alloc_worker(void) -- cgit v1.2.1 From dafc4f7be1a556ca3868d343c00127728b397068 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=C3=89ric=20Piel?= Date: Tue, 4 Sep 2012 17:25:06 +0200 Subject: USB: ftdi-sio: add support for more Physik Instrumente devices MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Commit b69cc672052540 added support for the E-861. After acquiring a C-867, I realised that every Physik Instrumente's device has a different PID. They are listed in the Windows device driver's .inf file. So here are all PIDs for the current (and probably future) USB devices from Physik Instrumente. Compiled, but only actually tested on the E-861 and C-867. Signed-off-by: Éric Piel Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/ftdi_sio.c | 17 +++++++++++++++++ drivers/usb/serial/ftdi_sio_ids.h | 21 ++++++++++++++++++++- 2 files changed, 37 insertions(+), 1 deletion(-) diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index 5620db6469e5..1197d4780b9a 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -810,7 +810,24 @@ static struct usb_device_id id_table_combined [] = { .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, { USB_DEVICE(LARSENBRUSGAARD_VID, LB_ALTITRACK_PID) }, { USB_DEVICE(GN_OTOMETRICS_VID, AURICAL_USB_PID) }, + { USB_DEVICE(FTDI_VID, PI_C865_PID) }, + { USB_DEVICE(FTDI_VID, PI_C857_PID) }, + { USB_DEVICE(PI_VID, PI_C866_PID) }, + { USB_DEVICE(PI_VID, PI_C663_PID) }, + { USB_DEVICE(PI_VID, PI_C725_PID) }, + { USB_DEVICE(PI_VID, PI_E517_PID) }, + { USB_DEVICE(PI_VID, PI_C863_PID) }, { USB_DEVICE(PI_VID, PI_E861_PID) }, + { USB_DEVICE(PI_VID, PI_C867_PID) }, + { USB_DEVICE(PI_VID, PI_E609_PID) }, + { USB_DEVICE(PI_VID, PI_E709_PID) }, + { USB_DEVICE(PI_VID, PI_100F_PID) }, + { USB_DEVICE(PI_VID, PI_1011_PID) }, + { USB_DEVICE(PI_VID, PI_1012_PID) }, + { USB_DEVICE(PI_VID, PI_1013_PID) }, + { USB_DEVICE(PI_VID, PI_1014_PID) }, + { USB_DEVICE(PI_VID, PI_1015_PID) }, + { USB_DEVICE(PI_VID, PI_1016_PID) }, { USB_DEVICE(KONDO_VID, KONDO_USB_SERIAL_PID) }, { USB_DEVICE(BAYER_VID, BAYER_CONTOUR_CABLE_PID) }, { USB_DEVICE(FTDI_VID, MARVELL_OPENRD_PID), diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h index 5dd96ca6c380..080d1580db99 100644 --- a/drivers/usb/serial/ftdi_sio_ids.h +++ b/drivers/usb/serial/ftdi_sio_ids.h @@ -791,8 +791,27 @@ * Physik Instrumente * http://www.physikinstrumente.com/en/products/ */ +/* These two devices use the VID of FTDI */ +#define PI_C865_PID 0xe0a0 /* PI C-865 Piezomotor Controller */ +#define PI_C857_PID 0xe0a1 /* PI Encoder Trigger Box */ + #define PI_VID 0x1a72 /* Vendor ID */ -#define PI_E861_PID 0x1008 /* E-861 piezo controller USB connection */ +#define PI_C866_PID 0x1000 /* PI C-866 Piezomotor Controller */ +#define PI_C663_PID 0x1001 /* PI C-663 Mercury-Step */ +#define PI_C725_PID 0x1002 /* PI C-725 Piezomotor Controller */ +#define PI_E517_PID 0x1005 /* PI E-517 Digital Piezo Controller Operation Module */ +#define PI_C863_PID 0x1007 /* PI C-863 */ +#define PI_E861_PID 0x1008 /* PI E-861 Piezomotor Controller */ +#define PI_C867_PID 0x1009 /* PI C-867 Piezomotor Controller */ +#define PI_E609_PID 0x100D /* PI E-609 Digital Piezo Controller */ +#define PI_E709_PID 0x100E /* PI E-709 Digital Piezo Controller */ +#define PI_100F_PID 0x100F /* PI Digital Piezo Controller */ +#define PI_1011_PID 0x1011 /* PI Digital Piezo Controller */ +#define PI_1012_PID 0x1012 /* PI Motion Controller */ +#define PI_1013_PID 0x1013 /* PI Motion Controller */ +#define PI_1014_PID 0x1014 /* PI Device */ +#define PI_1015_PID 0x1015 /* PI Device */ +#define PI_1016_PID 0x1016 /* PI Digital Servo Module */ /* * Kondo Kagaku Co.Ltd. -- cgit v1.2.1 From 26a538b9ea2a3ee10dafc0068f0560dfd7b7ba37 Mon Sep 17 00:00:00 2001 From: Horst Schirmeier Date: Fri, 31 Aug 2012 00:00:28 +0200 Subject: USB: ftdi_sio: PID for NZR SEM 16+ USB This adds the USB PID for the NZR SEM 16+ USB energy monitor device . It works perfectly with the GPL software on . Signed-off-by: Horst Schirmeier Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/ftdi_sio.c | 1 + drivers/usb/serial/ftdi_sio_ids.h | 3 +++ 2 files changed, 4 insertions(+) diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index 1197d4780b9a..e2fa7881067d 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -704,6 +704,7 @@ static struct usb_device_id id_table_combined [] = { { USB_DEVICE(FTDI_VID, FTDI_PCDJ_DAC2_PID) }, { USB_DEVICE(FTDI_VID, FTDI_RRCIRKITS_LOCOBUFFER_PID) }, { USB_DEVICE(FTDI_VID, FTDI_ASK_RDR400_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_NZR_SEM_USB_PID) }, { USB_DEVICE(ICOM_VID, ICOM_ID_1_PID) }, { USB_DEVICE(ICOM_VID, ICOM_OPC_U_UC_PID) }, { USB_DEVICE(ICOM_VID, ICOM_ID_RP2C1_PID) }, diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h index 080d1580db99..9bcaf9c3d3e4 100644 --- a/drivers/usb/serial/ftdi_sio_ids.h +++ b/drivers/usb/serial/ftdi_sio_ids.h @@ -75,6 +75,9 @@ #define FTDI_OPENDCC_GATEWAY_PID 0xBFDB #define FTDI_OPENDCC_GBM_PID 0xBFDC +/* NZR SEM 16+ USB (http://www.nzr.de) */ +#define FTDI_NZR_SEM_USB_PID 0xC1E0 /* NZR SEM-LOG16+ */ + /* * RR-CirKits LocoBuffer USB (http://www.rr-cirkits.com) */ -- cgit v1.2.1 From 6fffb77c8393151b0cf8cef1b9c2ba90587dd2e8 Mon Sep 17 00:00:00 2001 From: Nicolas Ferre Date: Wed, 29 Aug 2012 11:49:18 +0200 Subject: USB: ohci-at91: fix PIO handling in relation with number of ports If the number of ports present on the SoC/board is not the maximum and that the platform data is not filled with all data, there is an easy way to mess the PIO setup for this interface. This quick fix addresses mis-configuration in USB host platform data that is common in at91 boards since commit 0ee6d1e (USB: ohci-at91: change maximum number of ports) that did not modified the associatd board files. Reported-by: Klaus Falkner Signed-off-by: Nicolas Ferre Cc: Stable [3.4+] Acked-by: Alan Stern Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/ohci-at91.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c index a665b3eaa746..aaa8d2bce217 100644 --- a/drivers/usb/host/ohci-at91.c +++ b/drivers/usb/host/ohci-at91.c @@ -570,6 +570,16 @@ static int __devinit ohci_hcd_at91_drv_probe(struct platform_device *pdev) if (pdata) { at91_for_each_port(i) { + /* + * do not configure PIO if not in relation with + * real USB port on board + */ + if (i >= pdata->ports) { + pdata->vbus_pin[i] = -EINVAL; + pdata->overcurrent_pin[i] = -EINVAL; + break; + } + if (!gpio_is_valid(pdata->vbus_pin[i])) continue; gpio = pdata->vbus_pin[i]; -- cgit v1.2.1 From 92fc7a8b0f20bdb243c706daf42658e8e0cd2ef0 Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Tue, 4 Sep 2012 10:41:02 -0400 Subject: USB: add device quirk for Joss Optical touchboard This patch (as1604) adds a CONFIG_INTF_STRINGS quirk for the Joss infrared touchboard device. The device doesn't like to be asked for its interface strings. Signed-off-by: Alan Stern Reported-by: adam ? Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/quirks.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c index f15501f4c585..e77a8e8eaa23 100644 --- a/drivers/usb/core/quirks.c +++ b/drivers/usb/core/quirks.c @@ -71,6 +71,10 @@ static const struct usb_device_id usb_quirk_list[] = { { USB_DEVICE(0x04b4, 0x0526), .driver_info = USB_QUIRK_CONFIG_INTF_STRINGS }, + /* Microchip Joss Optical infrared touchboard device */ + { USB_DEVICE(0x04d8, 0x000c), .driver_info = + USB_QUIRK_CONFIG_INTF_STRINGS }, + /* Samsung Android phone modem - ID conflict with SPH-I500 */ { USB_DEVICE(0x04e8, 0x6601), .driver_info = USB_QUIRK_CONFIG_INTF_STRINGS }, -- cgit v1.2.1 From 37f45cc54cb03cac4a6b865b32bc705bb0cb1d29 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Mon, 3 Sep 2012 13:04:13 -0300 Subject: ASoC: mc13783: Remove mono support MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Playing a mono track on a mc13783 codec results in incorrect playback rate. Remove mono support so that a mono track can be played correctly. Signed-off-by: Fabio Estevam Tested-by: Gaëtan Carlier Signed-off-by: Mark Brown --- sound/soc/codecs/mc13783.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/sound/soc/codecs/mc13783.c b/sound/soc/codecs/mc13783.c index 8f726c063f42..115a40301810 100644 --- a/sound/soc/codecs/mc13783.c +++ b/sound/soc/codecs/mc13783.c @@ -659,7 +659,7 @@ static struct snd_soc_dai_driver mc13783_dai_async[] = { .id = MC13783_ID_STEREO_DAC, .playback = { .stream_name = "Playback", - .channels_min = 1, + .channels_min = 2, .channels_max = 2, .rates = SNDRV_PCM_RATE_8000_96000, .formats = MC13783_FORMATS, @@ -670,7 +670,7 @@ static struct snd_soc_dai_driver mc13783_dai_async[] = { .id = MC13783_ID_STEREO_CODEC, .capture = { .stream_name = "Capture", - .channels_min = 1, + .channels_min = 2, .channels_max = 2, .rates = MC13783_RATES_RECORD, .formats = MC13783_FORMATS, @@ -692,14 +692,14 @@ static struct snd_soc_dai_driver mc13783_dai_sync[] = { .id = MC13783_ID_SYNC, .playback = { .stream_name = "Playback", - .channels_min = 1, + .channels_min = 2, .channels_max = 2, .rates = SNDRV_PCM_RATE_8000_96000, .formats = MC13783_FORMATS, }, .capture = { .stream_name = "Capture", - .channels_min = 1, + .channels_min = 2, .channels_max = 2, .rates = MC13783_RATES_RECORD, .formats = MC13783_FORMATS, -- cgit v1.2.1 From 6138ed2ab8791d7a9c5ba66cadadd5eaf1fc1dac Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Wed, 5 Sep 2012 17:09:13 +0200 Subject: target: move transport_get_sense_data We will be calling it from transport_complete_cmd, avoid forward declarations. No semantic change. Signed-off-by: Paolo Bonzini Cc: stable@vger.kernel.org Signed-off-by: Nicholas Bellinger --- drivers/target/target_core_transport.c | 110 ++++++++++++++++----------------- 1 file changed, 55 insertions(+), 55 deletions(-) diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index 3425098ef728..d0afdaa06255 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -567,6 +567,61 @@ static void target_complete_failure_work(struct work_struct *work) transport_generic_request_failure(cmd); } +/* + * Used to obtain Sense Data from underlying Linux/SCSI struct scsi_cmnd + */ +static int transport_get_sense_data(struct se_cmd *cmd) +{ + unsigned char *buffer = cmd->sense_buffer, *sense_buffer = NULL; + struct se_device *dev = cmd->se_dev; + unsigned long flags; + u32 offset = 0; + + WARN_ON(!cmd->se_lun); + + if (!dev) + return 0; + + spin_lock_irqsave(&cmd->t_state_lock, flags); + if (cmd->se_cmd_flags & SCF_SENT_CHECK_CONDITION) { + spin_unlock_irqrestore(&cmd->t_state_lock, flags); + return 0; + } + + if (!(cmd->se_cmd_flags & SCF_TRANSPORT_TASK_SENSE)) + goto out; + + if (!dev->transport->get_sense_buffer) { + pr_err("dev->transport->get_sense_buffer is NULL\n"); + goto out; + } + + sense_buffer = dev->transport->get_sense_buffer(cmd); + if (!sense_buffer) { + pr_err("ITT 0x%08x cmd %p: Unable to locate" + " sense buffer for task with sense\n", + cmd->se_tfo->get_task_tag(cmd), cmd); + goto out; + } + + spin_unlock_irqrestore(&cmd->t_state_lock, flags); + + offset = cmd->se_tfo->set_fabric_sense_len(cmd, TRANSPORT_SENSE_BUFFER); + + memcpy(&buffer[offset], sense_buffer, TRANSPORT_SENSE_BUFFER); + + /* Automatically padded */ + cmd->scsi_sense_length = TRANSPORT_SENSE_BUFFER + offset; + + pr_debug("HBA_[%u]_PLUG[%s]: Set SAM STATUS: 0x%02x and sense\n", + dev->se_hba->hba_id, dev->transport->name, cmd->scsi_status); + return 0; + +out: + spin_unlock_irqrestore(&cmd->t_state_lock, flags); + return -1; +} + void target_complete_cmd(struct se_cmd *cmd, u8 scsi_status) { struct se_device *dev = cmd->se_dev; @@ -1820,61 +1875,6 @@ execute: } EXPORT_SYMBOL(target_execute_cmd); -/* - * Used to obtain Sense Data from underlying Linux/SCSI struct scsi_cmnd - */ -static int transport_get_sense_data(struct se_cmd *cmd) -{ - unsigned char *buffer = cmd->sense_buffer, *sense_buffer = NULL; - struct se_device *dev = cmd->se_dev; - unsigned long flags; - u32 offset = 0; - - WARN_ON(!cmd->se_lun); - - if (!dev) - return 0; - - spin_lock_irqsave(&cmd->t_state_lock, flags); - if (cmd->se_cmd_flags & SCF_SENT_CHECK_CONDITION) { - spin_unlock_irqrestore(&cmd->t_state_lock, flags); - return 0; - } - - if (!(cmd->se_cmd_flags & SCF_TRANSPORT_TASK_SENSE)) - goto out; - - if (!dev->transport->get_sense_buffer) { - pr_err("dev->transport->get_sense_buffer is NULL\n"); - goto out; - } - - sense_buffer = dev->transport->get_sense_buffer(cmd); - if (!sense_buffer) { - pr_err("ITT 0x%08x cmd %p: Unable to locate" - " sense buffer for task with sense\n", - cmd->se_tfo->get_task_tag(cmd), cmd); - goto out; - } - - spin_unlock_irqrestore(&cmd->t_state_lock, flags); - - offset = cmd->se_tfo->set_fabric_sense_len(cmd, TRANSPORT_SENSE_BUFFER); - - memcpy(&buffer[offset], sense_buffer, TRANSPORT_SENSE_BUFFER); - - /* Automatically padded */ - cmd->scsi_sense_length = TRANSPORT_SENSE_BUFFER + offset; - - pr_debug("HBA_[%u]_PLUG[%s]: Set SAM STATUS: 0x%02x and sense\n", - dev->se_hba->hba_id, dev->transport->name, cmd->scsi_status); - return 0; - -out: - spin_unlock_irqrestore(&cmd->t_state_lock, flags); - return -1; -} - /* * Process all commands up to the last received ORDERED task attribute which * requires another blocking boundary -- cgit v1.2.1 From 27a2709912ac19c755d34c79fe11994b0bf8082b Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Wed, 5 Sep 2012 17:09:14 +0200 Subject: target: simplify code around transport_get_sense_data The error conditions in transport_get_sense_data are superfluous and complicate the code unnecessarily: * SCF_TRANSPORT_TASK_SENSE is checked in the caller; * it's simply part of the invariants of dev->transport->get_sense_buffer that it must be there if transport_complete ever returns 1, and that it must not return NULL. Besides, the entire callback will disappear with the next patch. * similarly in the caller we can expect that sense data is only sent for non-zero cmd->scsi_status. Signed-off-by: Paolo Bonzini Cc: stable@vger.kernel.org Signed-off-by: Nicholas Bellinger --- drivers/target/target_core_transport.c | 49 +++++++++------------------------- 1 file changed, 13 insertions(+), 36 deletions(-) diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index d0afdaa06255..040f05fde4d6 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -570,7 +570,7 @@ static void target_complete_failure_work(struct work_struct *work) /* * Used to obtain Sense Data from underlying Linux/SCSI struct scsi_cmnd */ -static int transport_get_sense_data(struct se_cmd *cmd) +static void transport_get_sense_data(struct se_cmd *cmd) { unsigned char *buffer = cmd->sense_buffer, *sense_buffer = NULL; struct se_device *dev = cmd->se_dev; @@ -580,30 +580,15 @@ static int transport_get_sense_data(struct se_cmd *cmd) WARN_ON(!cmd->se_lun); if (!dev) - return 0; + return; spin_lock_irqsave(&cmd->t_state_lock, flags); if (cmd->se_cmd_flags & SCF_SENT_CHECK_CONDITION) { spin_unlock_irqrestore(&cmd->t_state_lock, flags); - return 0; - } - - if (!(cmd->se_cmd_flags & SCF_TRANSPORT_TASK_SENSE)) - goto out; - - if (!dev->transport->get_sense_buffer) { - pr_err("dev->transport->get_sense_buffer is NULL\n"); - goto out; + return; } sense_buffer = dev->transport->get_sense_buffer(cmd); - if (!sense_buffer) { - pr_err("ITT 0x%08x cmd %p: Unable to locate" - " sense buffer for task with sense\n", - cmd->se_tfo->get_task_tag(cmd), cmd); - goto out; - } - spin_unlock_irqrestore(&cmd->t_state_lock, flags); offset = cmd->se_tfo->set_fabric_sense_len(cmd, TRANSPORT_SENSE_BUFFER); @@ -615,11 +600,6 @@ static int transport_get_sense_data(struct se_cmd *cmd) pr_debug("HBA_[%u]_PLUG[%s]: Set SAM STATUS: 0x%02x and sense\n", dev->se_hba->hba_id, dev->transport->name, cmd->scsi_status); - return 0; - -out: - spin_unlock_irqrestore(&cmd->t_state_lock, flags); - return -1; } void target_complete_cmd(struct se_cmd *cmd, u8 scsi_status) @@ -1990,7 +1970,7 @@ static void transport_handle_queue_full( static void target_complete_ok_work(struct work_struct *work) { struct se_cmd *cmd = container_of(work, struct se_cmd, work); - int reason = 0, ret; + int ret; /* * Check if we need to move delayed/dormant tasks from cmds on the @@ -2011,19 +1991,16 @@ static void target_complete_ok_work(struct work_struct *work) * the struct se_cmd in question. */ if (cmd->se_cmd_flags & SCF_TRANSPORT_TASK_SENSE) { - if (transport_get_sense_data(cmd) < 0) - reason = TCM_NON_EXISTENT_LUN; - - if (cmd->scsi_status) { - ret = transport_send_check_condition_and_sense( - cmd, reason, 1); - if (ret == -EAGAIN || ret == -ENOMEM) - goto queue_full; + WARN_ON(!cmd->scsi_status); + transport_get_sense_data(cmd); + ret = transport_send_check_condition_and_sense( + cmd, 0, 1); + if (ret == -EAGAIN || ret == -ENOMEM) + goto queue_full; - transport_lun_remove_cmd(cmd); - transport_cmd_check_stop_to_fabric(cmd); - return; - } + transport_lun_remove_cmd(cmd); + transport_cmd_check_stop_to_fabric(cmd); + return; } /* * Check for a callback, used by amongst other things -- cgit v1.2.1 From d5829eac5f7cfff89c6d1cf11717eee97cf030d0 Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Wed, 5 Sep 2012 17:09:15 +0200 Subject: target: fix use-after-free with PSCSI sense data The pointer to the sense buffer is fetched by transport_get_sense_data, but this is called by target_complete_ok_work long after pscsi_req_done has freed the struct that contains it. Pass instead the fabric's sense buffer to transport_complete, and copy the data to it directly in transport_complete. Setting SCF_TRANSPORT_TASK_SENSE also becomes a duty of transport_complete. Signed-off-by: Paolo Bonzini Cc: stable@vger.kernel.org Signed-off-by: Nicholas Bellinger --- drivers/target/target_core_pscsi.c | 21 +++++++------------- drivers/target/target_core_transport.c | 36 +++++++++++++--------------------- include/target/target_core_backend.h | 4 +++- 3 files changed, 24 insertions(+), 37 deletions(-) diff --git a/drivers/target/target_core_pscsi.c b/drivers/target/target_core_pscsi.c index 5552fa7426bc..5f7151d90344 100644 --- a/drivers/target/target_core_pscsi.c +++ b/drivers/target/target_core_pscsi.c @@ -667,7 +667,8 @@ static void pscsi_free_device(void *p) kfree(pdv); } -static int pscsi_transport_complete(struct se_cmd *cmd, struct scatterlist *sg) +static void pscsi_transport_complete(struct se_cmd *cmd, struct scatterlist *sg, + unsigned char *sense_buffer) { struct pscsi_dev_virt *pdv = cmd->se_dev->dev_ptr; struct scsi_device *sd = pdv->pdv_sd; @@ -679,7 +680,7 @@ static int pscsi_transport_complete(struct se_cmd *cmd, struct scatterlist *sg) * not been allocated because TCM is handling the emulation directly. */ if (!pt) - return 0; + return; cdb = &pt->pscsi_cdb[0]; result = pt->pscsi_result; @@ -750,10 +751,10 @@ after_mode_sense: } after_mode_select: - if (status_byte(result) & CHECK_CONDITION) - return 1; - - return 0; + if (sense_buffer && (status_byte(result) & CHECK_CONDITION)) { + memcpy(sense_buffer, pt->pscsi_sense, TRANSPORT_SENSE_BUFFER); + cmd->se_cmd_flags |= SCF_TRANSPORT_TASK_SENSE; + } } enum { @@ -1184,13 +1185,6 @@ fail: return -ENOMEM; } -static unsigned char *pscsi_get_sense_buffer(struct se_cmd *cmd) -{ - struct pscsi_plugin_task *pt = cmd->priv; - - return pt->pscsi_sense; -} - /* pscsi_get_device_rev(): * * @@ -1273,7 +1267,6 @@ static struct se_subsystem_api pscsi_template = { .check_configfs_dev_params = pscsi_check_configfs_dev_params, .set_configfs_dev_params = pscsi_set_configfs_dev_params, .show_configfs_dev_params = pscsi_show_configfs_dev_params, - .get_sense_buffer = pscsi_get_sense_buffer, .get_device_rev = pscsi_get_device_rev, .get_device_type = pscsi_get_device_type, .get_blocks = pscsi_get_blocks, diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index 040f05fde4d6..8a29e3fd0195 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -568,38 +568,31 @@ static void target_complete_failure_work(struct work_struct *work) } /* - * Used to obtain Sense Data from underlying Linux/SCSI struct scsi_cmnd + * Used when asking transport to copy Sense Data from the underlying + * Linux/SCSI struct scsi_cmnd */ -static void transport_get_sense_data(struct se_cmd *cmd) +static unsigned char *transport_get_sense_buffer(struct se_cmd *cmd) { - unsigned char *buffer = cmd->sense_buffer, *sense_buffer = NULL; + unsigned char *buffer = cmd->sense_buffer; struct se_device *dev = cmd->se_dev; - unsigned long flags; u32 offset = 0; WARN_ON(!cmd->se_lun); if (!dev) - return; - - spin_lock_irqsave(&cmd->t_state_lock, flags); - if (cmd->se_cmd_flags & SCF_SENT_CHECK_CONDITION) { - spin_unlock_irqrestore(&cmd->t_state_lock, flags); - return; - } + return NULL; - sense_buffer = dev->transport->get_sense_buffer(cmd); - spin_unlock_irqrestore(&cmd->t_state_lock, flags); + if (cmd->se_cmd_flags & SCF_SENT_CHECK_CONDITION) + return NULL; offset = cmd->se_tfo->set_fabric_sense_len(cmd, TRANSPORT_SENSE_BUFFER); - memcpy(&buffer[offset], sense_buffer, TRANSPORT_SENSE_BUFFER); - /* Automatically padded */ cmd->scsi_sense_length = TRANSPORT_SENSE_BUFFER + offset; - pr_debug("HBA_[%u]_PLUG[%s]: Set SAM STATUS: 0x%02x and sense\n", + pr_debug("HBA_[%u]_PLUG[%s]: Requesting sense for SAM STATUS: 0x%02x\n", dev->se_hba->hba_id, dev->transport->name, cmd->scsi_status); + return &buffer[offset]; } void target_complete_cmd(struct se_cmd *cmd, u8 scsi_status) @@ -615,11 +608,11 @@ void target_complete_cmd(struct se_cmd *cmd, u8 scsi_status) cmd->transport_state &= ~CMD_T_BUSY; if (dev && dev->transport->transport_complete) { - if (dev->transport->transport_complete(cmd, - cmd->t_data_sg) != 0) { - cmd->se_cmd_flags |= SCF_TRANSPORT_TASK_SENSE; + dev->transport->transport_complete(cmd, + cmd->t_data_sg, + transport_get_sense_buffer(cmd)); + if (cmd->se_cmd_flags & SCF_TRANSPORT_TASK_SENSE) success = 1; - } } /* @@ -1987,12 +1980,11 @@ static void target_complete_ok_work(struct work_struct *work) schedule_work(&cmd->se_dev->qf_work_queue); /* - * Check if we need to retrieve a sense buffer from + * Check if we need to send a sense buffer from * the struct se_cmd in question. */ if (cmd->se_cmd_flags & SCF_TRANSPORT_TASK_SENSE) { WARN_ON(!cmd->scsi_status); - transport_get_sense_data(cmd); ret = transport_send_check_condition_and_sense( cmd, 0, 1); if (ret == -EAGAIN || ret == -ENOMEM) diff --git a/include/target/target_core_backend.h b/include/target/target_core_backend.h index f1405d335a96..941c84bf1065 100644 --- a/include/target/target_core_backend.h +++ b/include/target/target_core_backend.h @@ -23,7 +23,9 @@ struct se_subsystem_api { struct se_device *(*create_virtdevice)(struct se_hba *, struct se_subsystem_dev *, void *); void (*free_device)(void *); - int (*transport_complete)(struct se_cmd *cmd, struct scatterlist *); + void (*transport_complete)(struct se_cmd *cmd, + struct scatterlist *, + unsigned char *); int (*parse_cdb)(struct se_cmd *cmd); ssize_t (*check_configfs_dev_params)(struct se_hba *, -- cgit v1.2.1 From ab548d2dba63ba947287965e525cc02a15d9853d Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Thu, 6 Sep 2012 10:10:11 +0200 Subject: ALSA: hda - Fix missing Master volume for STAC9200/925x With the commit [2faa3bf: ALSA: hda - Rewrite the mute-LED hook with vmaster hook in patch_sigmatel.c], the former Master volume control was converted to PCM. This was supposed to be covered by the vmaster control. But due to the lack of "PCM" slave definition, this didn't happen properly. The patch fixes the missing entry. Reported-by: Andrew Shadura Cc: [v3.4+] Signed-off-by: Takashi Iwai --- sound/pci/hda/patch_sigmatel.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c index 6f806d3e56bb..3d4722f0a1ca 100644 --- a/sound/pci/hda/patch_sigmatel.c +++ b/sound/pci/hda/patch_sigmatel.c @@ -1075,7 +1075,7 @@ static struct snd_kcontrol_new stac_smux_mixer = { static const char * const slave_pfxs[] = { "Front", "Surround", "Center", "LFE", "Side", - "Headphone", "Speaker", "IEC958", + "Headphone", "Speaker", "IEC958", "PCM", NULL }; -- cgit v1.2.1 From 57b2d68863f281737d8596cb3d76d89d9cc54fd8 Mon Sep 17 00:00:00 2001 From: Dylan Reid Date: Sat, 1 Sep 2012 01:38:19 -0700 Subject: ASoC: samsung dma - Don't indicate support for pause/resume. The pause and resume operations indicate that the stream can be un-paused/resumed from the exact location they were paused/suspended. This is not true for this driver, the pause and suspend triggers share the same code path with stop, they flush all pending DMA transfers. This drops all pending samples. The pause_release/resume triggers are the same as start, except that prepare won't be called beforehand, nothing will be enqueued to the DMA engine and nothing will happen (no audio). Removing the pause flag will let apps know that it isn't supported. Removing the resume flag will cause user space to call prepare and start instead of resume, so audio will continue playing when the system wakes up. Before removing the pause and resume flags, I tested this on an exynos 5250, using 'aplay -i'. Pause/un-pause leads to silence followed by a write error. Suspend/resume testing led to the same result. Removing the two flags fixes suspend/resume (since snd_pcm_prepare is called again). And leads to a proper reporting of pause not supported. Signed-off-by: Dylan Reid Signed-off-by: Mark Brown Cc: stable@vger.kernel.org --- sound/soc/samsung/dma.c | 8 +------- 1 file changed, 1 insertion(+), 7 deletions(-) diff --git a/sound/soc/samsung/dma.c b/sound/soc/samsung/dma.c index f3ebc38c10fe..b70964ea448c 100644 --- a/sound/soc/samsung/dma.c +++ b/sound/soc/samsung/dma.c @@ -34,9 +34,7 @@ static const struct snd_pcm_hardware dma_hardware = { .info = SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_MMAP | - SNDRV_PCM_INFO_MMAP_VALID | - SNDRV_PCM_INFO_PAUSE | - SNDRV_PCM_INFO_RESUME, + SNDRV_PCM_INFO_MMAP_VALID, .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U8 | @@ -248,15 +246,11 @@ static int dma_trigger(struct snd_pcm_substream *substream, int cmd) switch (cmd) { case SNDRV_PCM_TRIGGER_START: - case SNDRV_PCM_TRIGGER_RESUME: - case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: prtd->state |= ST_RUNNING; prtd->params->ops->trigger(prtd->params->ch); break; case SNDRV_PCM_TRIGGER_STOP: - case SNDRV_PCM_TRIGGER_SUSPEND: - case SNDRV_PCM_TRIGGER_PAUSE_PUSH: prtd->state &= ~ST_RUNNING; prtd->params->ops->stop(prtd->params->ch); break; -- cgit v1.2.1 From 0626af3139572610b56376580d11eb65d45d9dd7 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Tue, 4 Sep 2012 07:49:03 +0000 Subject: netfilter: take care of timewait sockets Sami Farin reported crashes in xt_LOG because it assumes skb->sk is a full blown socket. Since (41063e9 ipv4: Early TCP socket demux), we can have skb->sk pointing to a timewait socket. Same fix is needed in nfnetlink_log. Diagnosed-by: Florian Westphal Reported-by: Sami Farin Signed-off-by: Eric Dumazet Signed-off-by: Pablo Neira Ayuso --- net/netfilter/nfnetlink_log.c | 14 ++++++++------ net/netfilter/xt_LOG.c | 33 +++++++++++++++++---------------- 2 files changed, 25 insertions(+), 22 deletions(-) diff --git a/net/netfilter/nfnetlink_log.c b/net/netfilter/nfnetlink_log.c index 14e2f3903142..5cfb5bedb2b8 100644 --- a/net/netfilter/nfnetlink_log.c +++ b/net/netfilter/nfnetlink_log.c @@ -381,6 +381,7 @@ __build_packet_message(struct nfulnl_instance *inst, struct nlmsghdr *nlh; struct nfgenmsg *nfmsg; sk_buff_data_t old_tail = inst->skb->tail; + struct sock *sk; nlh = nlmsg_put(inst->skb, 0, 0, NFNL_SUBSYS_ULOG << 8 | NFULNL_MSG_PACKET, @@ -499,18 +500,19 @@ __build_packet_message(struct nfulnl_instance *inst, } /* UID */ - if (skb->sk) { - read_lock_bh(&skb->sk->sk_callback_lock); - if (skb->sk->sk_socket && skb->sk->sk_socket->file) { - struct file *file = skb->sk->sk_socket->file; + sk = skb->sk; + if (sk && sk->sk_state != TCP_TIME_WAIT) { + read_lock_bh(&sk->sk_callback_lock); + if (sk->sk_socket && sk->sk_socket->file) { + struct file *file = sk->sk_socket->file; __be32 uid = htonl(file->f_cred->fsuid); __be32 gid = htonl(file->f_cred->fsgid); - read_unlock_bh(&skb->sk->sk_callback_lock); + read_unlock_bh(&sk->sk_callback_lock); if (nla_put_be32(inst->skb, NFULA_UID, uid) || nla_put_be32(inst->skb, NFULA_GID, gid)) goto nla_put_failure; } else - read_unlock_bh(&skb->sk->sk_callback_lock); + read_unlock_bh(&sk->sk_callback_lock); } /* local sequence number */ diff --git a/net/netfilter/xt_LOG.c b/net/netfilter/xt_LOG.c index ff5f75fddb15..2a4f9693e799 100644 --- a/net/netfilter/xt_LOG.c +++ b/net/netfilter/xt_LOG.c @@ -145,6 +145,19 @@ static int dump_tcp_header(struct sbuff *m, const struct sk_buff *skb, return 0; } +static void dump_sk_uid_gid(struct sbuff *m, struct sock *sk) +{ + if (!sk || sk->sk_state == TCP_TIME_WAIT) + return; + + read_lock_bh(&sk->sk_callback_lock); + if (sk->sk_socket && sk->sk_socket->file) + sb_add(m, "UID=%u GID=%u ", + sk->sk_socket->file->f_cred->fsuid, + sk->sk_socket->file->f_cred->fsgid); + read_unlock_bh(&sk->sk_callback_lock); +} + /* One level of recursion won't kill us */ static void dump_ipv4_packet(struct sbuff *m, const struct nf_loginfo *info, @@ -361,14 +374,8 @@ static void dump_ipv4_packet(struct sbuff *m, } /* Max length: 15 "UID=4294967295 " */ - if ((logflags & XT_LOG_UID) && !iphoff && skb->sk) { - read_lock_bh(&skb->sk->sk_callback_lock); - if (skb->sk->sk_socket && skb->sk->sk_socket->file) - sb_add(m, "UID=%u GID=%u ", - skb->sk->sk_socket->file->f_cred->fsuid, - skb->sk->sk_socket->file->f_cred->fsgid); - read_unlock_bh(&skb->sk->sk_callback_lock); - } + if ((logflags & XT_LOG_UID) && !iphoff) + dump_sk_uid_gid(m, skb->sk); /* Max length: 16 "MARK=0xFFFFFFFF " */ if (!iphoff && skb->mark) @@ -717,14 +724,8 @@ static void dump_ipv6_packet(struct sbuff *m, } /* Max length: 15 "UID=4294967295 " */ - if ((logflags & XT_LOG_UID) && recurse && skb->sk) { - read_lock_bh(&skb->sk->sk_callback_lock); - if (skb->sk->sk_socket && skb->sk->sk_socket->file) - sb_add(m, "UID=%u GID=%u ", - skb->sk->sk_socket->file->f_cred->fsuid, - skb->sk->sk_socket->file->f_cred->fsgid); - read_unlock_bh(&skb->sk->sk_callback_lock); - } + if ((logflags & XT_LOG_UID) && recurse) + dump_sk_uid_gid(m, skb->sk); /* Max length: 16 "MARK=0xFFFFFFFF " */ if (!recurse && skb->mark) -- cgit v1.2.1 From 1213a205f9ed27d97de3d5bed28fb085ef4853e2 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Thu, 6 Sep 2012 14:58:00 +0200 Subject: ALSA: usb-audio: Fix bogus error messages for delay accounting The recent fix for the missing fine delayed time adjustment gives strange error messages at each start of the playback stream, such as delay: estimated 0, actual 352 delay: estimated 353, actual 705 These come from the sanity check in retire_playback_urb(). Before the stream is activated via start_endpoints(), a few silent packets have been already sent. And at this point the delay account is still in the state as if the new packets are just queued, so the driver gets confused and spews the bogus error messages. For fixing the issue, we just need to check whether the received packet is valid, whether it's zero sized or not. Reported-by: Markus Trippelsdorf Cc: [v3.5+] Signed-off-by: Takashi Iwai --- sound/usb/pcm.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c index fd5e982fc98c..f782ce19bf5a 100644 --- a/sound/usb/pcm.c +++ b/sound/usb/pcm.c @@ -1140,6 +1140,12 @@ static void retire_playback_urb(struct snd_usb_substream *subs, int processed = urb->transfer_buffer_length / stride; int est_delay; + /* ignore the delay accounting when procssed=0 is given, i.e. + * silent payloads are procssed before handling the actual data + */ + if (!processed) + return; + spin_lock_irqsave(&subs->lock, flags); est_delay = snd_usb_pcm_delay(subs, runtime->rate); /* update delay with exact number of samples played */ -- cgit v1.2.1 From 1f1ea6c2d9d8c0be9ec56454b05315273b5de8ce Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Sun, 26 Aug 2012 11:44:43 -0700 Subject: NFSv4: Fix buffer overflow checking in __nfs4_get_acl_uncached Pass the checks made by decode_getacl back to __nfs4_get_acl_uncached so that it knows if the acl has been truncated. The current overflow checking is broken, resulting in Oopses on user-triggered nfs4_getfacl calls, and is opaque to the point where several attempts at fixing it have failed. This patch tries to clean up the code in addition to fixing the Oopses by ensuring that the overflow checks are performed in a single place (decode_getacl). If the overflow check failed, we will still be able to report the acl length, but at least we will no longer attempt to cache the acl or copy the truncated contents to user space. Reported-by: Sachin Prabhu Signed-off-by: Trond Myklebust Tested-by: Sachin Prabhu --- fs/nfs/nfs4proc.c | 31 ++++++++++++------------------- fs/nfs/nfs4xdr.c | 14 +++++--------- include/linux/nfs_xdr.h | 2 +- 3 files changed, 18 insertions(+), 29 deletions(-) diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 6b94f2d52532..1e50326d00dd 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -3739,7 +3739,7 @@ static void nfs4_write_cached_acl(struct inode *inode, struct page **pages, size struct nfs4_cached_acl *acl; size_t buflen = sizeof(*acl) + acl_len; - if (pages && buflen <= PAGE_SIZE) { + if (buflen <= PAGE_SIZE) { acl = kmalloc(buflen, GFP_KERNEL); if (acl == NULL) goto out; @@ -3784,7 +3784,6 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu }; unsigned int npages = DIV_ROUND_UP(buflen, PAGE_SIZE); int ret = -ENOMEM, i; - size_t acl_len = 0; /* As long as we're doing a round trip to the server anyway, * let's be prepared for a page of acl data. */ @@ -3807,11 +3806,6 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu args.acl_len = npages * PAGE_SIZE; args.acl_pgbase = 0; - /* Let decode_getfacl know not to fail if the ACL data is larger than - * the page we send as a guess */ - if (buf == NULL) - res.acl_flags |= NFS4_ACL_LEN_REQUEST; - dprintk("%s buf %p buflen %zu npages %d args.acl_len %zu\n", __func__, buf, buflen, npages, args.acl_len); ret = nfs4_call_sync(NFS_SERVER(inode)->client, NFS_SERVER(inode), @@ -3819,20 +3813,19 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu if (ret) goto out_free; - acl_len = res.acl_len; - if (acl_len > args.acl_len) - nfs4_write_cached_acl(inode, NULL, 0, acl_len); - else - nfs4_write_cached_acl(inode, pages, res.acl_data_offset, - acl_len); - if (buf) { + /* Handle the case where the passed-in buffer is too short */ + if (res.acl_flags & NFS4_ACL_TRUNC) { + /* Did the user only issue a request for the acl length? */ + if (buf == NULL) + goto out_ok; ret = -ERANGE; - if (acl_len > buflen) - goto out_free; - _copy_from_pages(buf, pages, res.acl_data_offset, - acl_len); + goto out_free; } - ret = acl_len; + nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len); + if (buf) + _copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len); +out_ok: + ret = res.acl_len; out_free: for (i = 0; i < npages; i++) if (pages[i]) diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c index 1bfbd67c556d..541e796e6db5 100644 --- a/fs/nfs/nfs4xdr.c +++ b/fs/nfs/nfs4xdr.c @@ -5072,18 +5072,14 @@ static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, * are stored with the acl data to handle the problem of * variable length bitmaps.*/ res->acl_data_offset = xdr_stream_pos(xdr) - pg_offset; - - /* We ignore &savep and don't do consistency checks on - * the attr length. Let userspace figure it out.... */ res->acl_len = attrlen; - if (attrlen > (xdr->nwords << 2)) { - if (res->acl_flags & NFS4_ACL_LEN_REQUEST) { - /* getxattr interface called with a NULL buf */ - goto out; - } + + /* Check for receive buffer overflow */ + if (res->acl_len > (xdr->nwords << 2) || + res->acl_len + res->acl_data_offset > xdr->buf->page_len) { + res->acl_flags |= NFS4_ACL_TRUNC; dprintk("NFS: acl reply: attrlen %u > page_len %u\n", attrlen, xdr->nwords << 2); - return -EINVAL; } } else status = -EOPNOTSUPP; diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h index ac7c8ae254f2..be9cf3c7e79e 100644 --- a/include/linux/nfs_xdr.h +++ b/include/linux/nfs_xdr.h @@ -652,7 +652,7 @@ struct nfs_getaclargs { }; /* getxattr ACL interface flags */ -#define NFS4_ACL_LEN_REQUEST 0x0001 /* zero length getxattr buffer */ +#define NFS4_ACL_TRUNC 0x0001 /* ACL was truncated */ struct nfs_getaclres { size_t acl_len; size_t acl_data_offset; -- cgit v1.2.1 From ea0e627623e236e4cbec9f44b4a755bc4a4b852d Mon Sep 17 00:00:00 2001 From: Andrzej Pietrasiewicz Date: Mon, 11 Jun 2012 11:13:15 +0200 Subject: usb: gadget: add multiple definition guards If f_fs.c and u_serial.c are combined together using #include, which has been a common practice so far, the pr_vdebug macro is defined multiple times. Define it only once. Acked-by: Randy Dunlap Signed-off-by: Andrzej Pietrasiewicz Signed-off-by: Kyungmin Park Signed-off-by: Felipe Balbi --- drivers/usb/gadget/f_fs.c | 4 ++++ drivers/usb/gadget/u_serial.c | 4 ++++ 2 files changed, 8 insertions(+) diff --git a/drivers/usb/gadget/f_fs.c b/drivers/usb/gadget/f_fs.c index 8adc79d1b402..829aba75a6df 100644 --- a/drivers/usb/gadget/f_fs.c +++ b/drivers/usb/gadget/f_fs.c @@ -34,11 +34,15 @@ /* Debugging ****************************************************************/ #ifdef VERBOSE_DEBUG +#ifndef pr_vdebug # define pr_vdebug pr_debug +#endif /* pr_vdebug */ # define ffs_dump_mem(prefix, ptr, len) \ print_hex_dump_bytes(pr_fmt(prefix ": "), DUMP_PREFIX_NONE, ptr, len) #else +#ifndef pr_vdebug # define pr_vdebug(...) do { } while (0) +#endif /* pr_vdebug */ # define ffs_dump_mem(prefix, ptr, len) do { } while (0) #endif /* VERBOSE_DEBUG */ diff --git a/drivers/usb/gadget/u_serial.c b/drivers/usb/gadget/u_serial.c index 5b3f5fffea92..da6d479ff9a6 100644 --- a/drivers/usb/gadget/u_serial.c +++ b/drivers/usb/gadget/u_serial.c @@ -132,11 +132,15 @@ static unsigned n_ports; #ifdef VERBOSE_DEBUG +#ifndef pr_vdebug #define pr_vdebug(fmt, arg...) \ pr_debug(fmt, ##arg) +#endif /* pr_vdebug */ #else +#ifndef pr_vdebig #define pr_vdebug(fmt, arg...) \ ({ if (0) pr_debug(fmt, ##arg); }) +#endif /* pr_vdebug */ #endif /*-------------------------------------------------------------------------*/ -- cgit v1.2.1 From 0416e494ce7dc84e2719bc9fb7daecb330476074 Mon Sep 17 00:00:00 2001 From: Pratyush Anand Date: Fri, 10 Aug 2012 13:42:16 +0530 Subject: usb: dwc3: ep0: correct cache sync issue in case of ep0_bounced In case of ep0 out, if length is not aligned to maxpacket size then we use dwc->ep_bounce_addr for dma transfer and not request->dma. Since, we have alreday done memcpy from dwc->ep0_bounce to request->buf, so we do not need to issue cache sync function. In fact, cache sync function will bring wrong data in request->buf from request->dma in this scenario. So, cache sync function must not be executed in case of ep0 bounced. Cc: # v3.4 v3.5 Signed-off-by: Pratyush Anand Signed-off-by: Felipe Balbi --- drivers/usb/dwc3/ep0.c | 1 - drivers/usb/dwc3/gadget.c | 7 +++++-- 2 files changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c index 9b94886b66e5..e4d5ca86b9da 100644 --- a/drivers/usb/dwc3/ep0.c +++ b/drivers/usb/dwc3/ep0.c @@ -720,7 +720,6 @@ static void dwc3_ep0_complete_data(struct dwc3 *dwc, transferred = min_t(u32, ur->length, transfer_size - length); memcpy(ur->buf, dwc->ep0_bounce, transferred); - dwc->ep0_bounced = false; } else { transferred = ur->length - length; } diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 58fdfad96b4d..c99568eb4292 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -263,8 +263,11 @@ void dwc3_gadget_giveback(struct dwc3_ep *dep, struct dwc3_request *req, if (req->request.status == -EINPROGRESS) req->request.status = status; - usb_gadget_unmap_request(&dwc->gadget, &req->request, - req->direction); + if (dwc->ep0_bounced && dep->number == 0) + dwc->ep0_bounced = false; + else + usb_gadget_unmap_request(&dwc->gadget, &req->request, + req->direction); dev_dbg(dwc->dev, "request %p from %s completed %d/%d ===> %d\n", req, dep->name, req->request.actual, -- cgit v1.2.1 From c8e6507bdec67f1c50390a69a14568c5115cc658 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Tue, 14 Aug 2012 08:47:34 +0200 Subject: usb: gadget: s3c-hsotg.c: fix error return code Convert a 0 error return code to a negative one, as returned elsewhere in the function. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // @@ identifier ret; expression e,e1,e2,e3,e4,x; @@ ( if (\(ret != 0\|ret < 0\) || ...) { ... return ...; } | ret = 0 ) ... when != ret = e1 *x = \(kmalloc\|kzalloc\|kcalloc\|devm_kzalloc\|ioremap\|ioremap_nocache\|devm_ioremap\|devm_ioremap_nocache\)(...); ... when != x = e2 when != ret = e3 *if (x == NULL || ...) { ... when != ret = e4 * return ret; } // Signed-off-by: Julia Lawall Signed-off-by: Felipe Balbi --- drivers/usb/gadget/s3c-hsotg.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c index b13e0bb5f5b8..0bb617e1dda2 100644 --- a/drivers/usb/gadget/s3c-hsotg.c +++ b/drivers/usb/gadget/s3c-hsotg.c @@ -3599,6 +3599,7 @@ static int __devinit s3c_hsotg_probe(struct platform_device *pdev) if (hsotg->num_of_eps == 0) { dev_err(dev, "wrong number of EPs (zero)\n"); + ret = -EINVAL; goto err_supplies; } @@ -3606,6 +3607,7 @@ static int __devinit s3c_hsotg_probe(struct platform_device *pdev) GFP_KERNEL); if (!eps) { dev_err(dev, "cannot get memory\n"); + ret = -ENOMEM; goto err_supplies; } @@ -3622,6 +3624,7 @@ static int __devinit s3c_hsotg_probe(struct platform_device *pdev) GFP_KERNEL); if (!hsotg->ctrl_req) { dev_err(dev, "failed to allocate ctrl req\n"); + ret = -ENOMEM; goto err_ep_mem; } -- cgit v1.2.1 From 1b68a4ca2d038addb7314211d122fb6d7002b38b Mon Sep 17 00:00:00 2001 From: Sebastian Andrzej Siewior Date: Sun, 19 Aug 2012 21:54:58 +0200 Subject: usb: gadget: dummy_hcd: fixup error probe path If USB2 host controller probes fine but USB3 does not then we don't remove the USB controller properly and lock up the system while the HUB code will try to enumerate the USB2 controller and access memory which is no longer available in case the dummy_hcd was compiled as a module. This is a problem since 448b6eb1 ("USB: Make sure to fetch the BOS desc for roothubs.) if used in USB3 mode because dummy does not provide this descriptor and explodes later. Cc: stable@vger.kernel.org # v3.5 Signed-off-by: Sebastian Andrzej Siewior Signed-off-by: Felipe Balbi --- drivers/usb/gadget/dummy_hcd.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c index b799106027ad..0e58a46956ae 100644 --- a/drivers/usb/gadget/dummy_hcd.c +++ b/drivers/usb/gadget/dummy_hcd.c @@ -2503,10 +2503,8 @@ static int dummy_hcd_probe(struct platform_device *pdev) hs_hcd->has_tt = 1; retval = usb_add_hcd(hs_hcd, 0, 0); - if (retval != 0) { - usb_put_hcd(hs_hcd); - return retval; - } + if (retval) + goto put_usb2_hcd; if (mod_data.is_super_speed) { ss_hcd = usb_create_shared_hcd(&dummy_hcd, &pdev->dev, @@ -2525,6 +2523,8 @@ static int dummy_hcd_probe(struct platform_device *pdev) put_usb3_hcd: usb_put_hcd(ss_hcd); dealloc_usb2_hcd: + usb_remove_hcd(hs_hcd); +put_usb2_hcd: usb_put_hcd(hs_hcd); the_controller.hs_hcd = the_controller.ss_hcd = NULL; return retval; -- cgit v1.2.1 From 3b9c1c5ba7a95caae8440ea47308496b14f7301a Mon Sep 17 00:00:00 2001 From: Sebastian Andrzej Siewior Date: Sun, 19 Aug 2012 21:54:59 +0200 Subject: usb: gadget: dummy_hcd: add support for USB_DT_BOS on rh Without a reply for USB_DT_BOS the USB3 mode does not work since 448b6eb1 ("USB: Make sure to fetch the BOS desc for roothubs.). Cc: stable@vger.kernel.org #v3.5 Signed-off-by: Sebastian Andrzej Siewior Signed-off-by: Felipe Balbi --- drivers/usb/gadget/dummy_hcd.c | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c index 0e58a46956ae..afdbb1cbf5d9 100644 --- a/drivers/usb/gadget/dummy_hcd.c +++ b/drivers/usb/gadget/dummy_hcd.c @@ -1916,6 +1916,27 @@ done: return retval; } +/* usb 3.0 root hub device descriptor */ +struct { + struct usb_bos_descriptor bos; + struct usb_ss_cap_descriptor ss_cap; +} __packed usb3_bos_desc = { + + .bos = { + .bLength = USB_DT_BOS_SIZE, + .bDescriptorType = USB_DT_BOS, + .wTotalLength = cpu_to_le16(sizeof(usb3_bos_desc)), + .bNumDeviceCaps = 1, + }, + .ss_cap = { + .bLength = USB_DT_USB_SS_CAP_SIZE, + .bDescriptorType = USB_DT_DEVICE_CAPABILITY, + .bDevCapabilityType = USB_SS_CAP_TYPE, + .wSpeedSupported = cpu_to_le16(USB_5GBPS_OPERATION), + .bFunctionalitySupport = ilog2(USB_5GBPS_OPERATION), + }, +}; + static inline void ss_hub_descriptor(struct usb_hub_descriptor *desc) { @@ -2006,6 +2027,18 @@ static int dummy_hub_control( else hub_descriptor((struct usb_hub_descriptor *) buf); break; + + case DeviceRequest | USB_REQ_GET_DESCRIPTOR: + if (hcd->speed != HCD_USB3) + goto error; + + if ((wValue >> 8) != USB_DT_BOS) + goto error; + + memcpy(buf, &usb3_bos_desc, sizeof(usb3_bos_desc)); + retval = sizeof(usb3_bos_desc); + break; + case GetHubStatus: *(__le32 *) buf = cpu_to_le32(0); break; -- cgit v1.2.1 From 3067779b1566ae5fb6af40f03ae874ac47035523 Mon Sep 17 00:00:00 2001 From: yuzheng ma Date: Wed, 15 Aug 2012 16:11:40 +0800 Subject: usb: musb: host: fix for musb_start_urb Oops when using musb_urb_enqueue to submit three urbs to the same endpoint, when hep->hcpriv is NULL, qh will be allocated when the first urb is completed. When the IRQ completes the next two urbs, qh->hep->hcpriv will be set to NULL. Now the second urb get musb->lock and executes musb_schedule(), but next_urb(qh) is NULL, so musb_start_urb will Oops. [ balbi@ti.com : practically rewrote commit log so it makes sense ] Signed-off-by: mayuzheng Signed-off-by: Felipe Balbi --- drivers/usb/musb/musb_host.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c index 4bb717d0bd41..1ae378d5fc6f 100644 --- a/drivers/usb/musb/musb_host.c +++ b/drivers/usb/musb/musb_host.c @@ -2049,7 +2049,7 @@ static int musb_urb_enqueue( * we only have work to do in the former case. */ spin_lock_irqsave(&musb->lock, flags); - if (hep->hcpriv) { + if (hep->hcpriv || !next_urb(qh)) { /* some concurrent activity submitted another urb to hep... * odd, rare, error prone, but legal. */ -- cgit v1.2.1 From ff41aaa3b6c181a713078d8ad96da4ba822de436 Mon Sep 17 00:00:00 2001 From: Sergei Shtylyov Date: Mon, 20 Aug 2012 22:31:41 +0400 Subject: usb: musb: tusb6010: fix error path in tusb_probe() On platform_device_add() failure, the TUSB6010 glue layer forgets to call platform_device_put() -- probably due to a typo... Signed-off-by: Sergei Shtylyov Signed-off-by: Felipe Balbi --- drivers/usb/musb/tusb6010.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/musb/tusb6010.c b/drivers/usb/musb/tusb6010.c index 1a1bd9cf40c5..341625442377 100644 --- a/drivers/usb/musb/tusb6010.c +++ b/drivers/usb/musb/tusb6010.c @@ -1215,7 +1215,7 @@ static int __devinit tusb_probe(struct platform_device *pdev) ret = platform_device_add(musb); if (ret) { dev_err(&pdev->dev, "failed to register musb device\n"); - goto err1; + goto err2; } return 0; -- cgit v1.2.1 From 7effdbd6512083e21c007edbaca0ceff4aa5159f Mon Sep 17 00:00:00 2001 From: Sergei Shtylyov Date: Mon, 20 Aug 2012 22:34:46 +0400 Subject: usb: musb: musbhsdma: fix IRQ check dma_controller_create() in this MUSB DMA driver only regards 0 as a wrong IRQ number, despite platform_get_irq_byname() that it calls returns -ENXIO in that case. It leads to calling request_irq() with a negative IRQ number, and when it naturally fails, the following is printed to the console: request_irq -6 failed! and the DMA controller is not created. Fix this function to filter out the error values as well as 0. Signed-off-by: Sergei Shtylyov Signed-off-by: Felipe Balbi --- drivers/usb/musb/musbhsdma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/musb/musbhsdma.c b/drivers/usb/musb/musbhsdma.c index 57a608584e16..c1be687e00ec 100644 --- a/drivers/usb/musb/musbhsdma.c +++ b/drivers/usb/musb/musbhsdma.c @@ -388,7 +388,7 @@ dma_controller_create(struct musb *musb, void __iomem *base) struct platform_device *pdev = to_platform_device(dev); int irq = platform_get_irq_byname(pdev, "dma"); - if (irq == 0) { + if (irq <= 0) { dev_err(dev, "No DMA interrupt line!\n"); return NULL; } -- cgit v1.2.1 From 066618bc350cc6035c3a0fc559a8ac02f55785a9 Mon Sep 17 00:00:00 2001 From: Kishon Vijay Abraham I Date: Tue, 21 Aug 2012 14:56:16 +0530 Subject: usb: dwc3: core: fix incorrect usage of resource pointer Populate the resources for xhci afresh instead of directly using the *struct resource* of core. *resource* structure has parent, sibling, child pointers which should be filled only by resource API's. By directly using the *resource* pointer of core in xhci, these parent, sibling, child pointers are already populated even before *platform_device_add* causing side effects. Cc: stable@vger.kernel.org # v3.4, v3.5 Reported-by: Ruchika Kharwar Tested-by: Moiz Sonasath Signed-off-by: Kishon Vijay Abraham I Signed-off-by: Felipe Balbi --- drivers/usb/dwc3/core.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index c34452a7304f..a68ff53124dc 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -436,16 +436,21 @@ static int __devinit dwc3_probe(struct platform_device *pdev) dev_err(dev, "missing IRQ\n"); return -ENODEV; } - dwc->xhci_resources[1] = *res; + dwc->xhci_resources[1].start = res->start; + dwc->xhci_resources[1].end = res->end; + dwc->xhci_resources[1].flags = res->flags; + dwc->xhci_resources[1].name = res->name; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) { dev_err(dev, "missing memory resource\n"); return -ENODEV; } - dwc->xhci_resources[0] = *res; + dwc->xhci_resources[0].start = res->start; dwc->xhci_resources[0].end = dwc->xhci_resources[0].start + DWC3_XHCI_REGS_END; + dwc->xhci_resources[0].flags = res->flags; + dwc->xhci_resources[0].name = res->name; /* * Request memory region but exclude xHCI regs, -- cgit v1.2.1 From 8b7dda554cf61e87523dee412eaf598f8646bd79 Mon Sep 17 00:00:00 2001 From: Sebastian Andrzej Siewior Date: Fri, 20 Jul 2012 20:34:24 +0200 Subject: usb: gadget: at91udc: don't overwrite driver data The driver was converted to the new start/stop interface in f3d8bf34c2 ("usb: gadget: at91_udc: convert to new style start/stop interface"). I overlooked that the driver is overwritting the private data which is used by the composite framework. The udc driver doesn't read it, it is only written here. Tested-by: Fabio Porcedda Tested-by: Mario Isidoro Cc: # v3.5 Signed-off-by: Sebastian Andrzej Siewior Signed-off-by: Felipe Balbi --- drivers/usb/gadget/at91_udc.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/usb/gadget/at91_udc.c b/drivers/usb/gadget/at91_udc.c index c9e66dfb02e6..14df835991af 100644 --- a/drivers/usb/gadget/at91_udc.c +++ b/drivers/usb/gadget/at91_udc.c @@ -1635,7 +1635,6 @@ static int at91_start(struct usb_gadget *gadget, udc->driver = driver; udc->gadget.dev.driver = &driver->driver; udc->gadget.dev.of_node = udc->pdev->dev.of_node; - dev_set_drvdata(&udc->gadget.dev, &driver->driver); udc->enabled = 1; udc->selfpowered = 1; @@ -1656,7 +1655,6 @@ static int at91_stop(struct usb_gadget *gadget, spin_unlock_irqrestore(&udc->lock, flags); udc->gadget.dev.driver = NULL; - dev_set_drvdata(&udc->gadget.dev, NULL); udc->driver = NULL; DBG("unbound from %s\n", driver->driver.name); -- cgit v1.2.1 From f3bb8e63a8ee0398dffe412e774d8801db7e1bf1 Mon Sep 17 00:00:00 2001 From: Sebastian Andrzej Siewior Date: Fri, 20 Jul 2012 20:34:25 +0200 Subject: usb: gadget: at91udc: Don't check for ep->ep.desc Earlier we used to check for ep->ep.desc to figure out if this ep has already been enabled and if so, abort. Ido Shayevitz removed the usb_endpoint_descriptor from private udc structure 5a6506f00 ("usb: gadget: Update at91_udc to use usb_endpoint_descriptor inside the struct usb_ep") but did not fix up the ep_enable condition because _now_ the member is always true and we can't check if this ep is enabled twice. Cc: Ido Shayevitz Tested-by: Fabio Porcedda Tested-by: Mario Isidoro Cc: # v3.5 Signed-off-by: Sebastian Andrzej Siewior Signed-off-by: Felipe Balbi --- drivers/usb/gadget/at91_udc.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/usb/gadget/at91_udc.c b/drivers/usb/gadget/at91_udc.c index 14df835991af..1e35963bd4ed 100644 --- a/drivers/usb/gadget/at91_udc.c +++ b/drivers/usb/gadget/at91_udc.c @@ -475,8 +475,7 @@ static int at91_ep_enable(struct usb_ep *_ep, unsigned long flags; if (!_ep || !ep - || !desc || ep->ep.desc - || _ep->name == ep0name + || !desc || _ep->name == ep0name || desc->bDescriptorType != USB_DT_ENDPOINT || (maxpacket = usb_endpoint_maxp(desc)) == 0 || maxpacket > ep->maxpacket) { @@ -530,7 +529,6 @@ ok: tmp |= AT91_UDP_EPEDS; __raw_writel(tmp, ep->creg); - ep->ep.desc = desc; ep->ep.maxpacket = maxpacket; /* -- cgit v1.2.1 From 77975eec149506e457e6abe2ce43259895a9a16e Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Wed, 22 Aug 2012 18:01:13 -0700 Subject: usb: renesas_usbhs: fixup DMA transport data alignment renesas_usbhs dma can transport 8byte alignment data, not 4byte. This patch fixup it. Reported-by: Sugnan Prabhu S Signed-off-by: Kuninori Morimoto Signed-off-by: Felipe Balbi --- drivers/usb/renesas_usbhs/fifo.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/usb/renesas_usbhs/fifo.c b/drivers/usb/renesas_usbhs/fifo.c index ecd173032fd4..143c4e9e1be4 100644 --- a/drivers/usb/renesas_usbhs/fifo.c +++ b/drivers/usb/renesas_usbhs/fifo.c @@ -818,7 +818,7 @@ static int usbhsf_dma_prepare_push(struct usbhs_pkt *pkt, int *is_done) usbhs_pipe_is_dcp(pipe)) goto usbhsf_pio_prepare_push; - if (len % 4) /* 32bit alignment */ + if (len & 0x7) /* 8byte alignment */ goto usbhsf_pio_prepare_push; if ((uintptr_t)(pkt->buf + pkt->actual) & 0x7) /* 8byte alignment */ @@ -905,7 +905,7 @@ static int usbhsf_dma_try_pop(struct usbhs_pkt *pkt, int *is_done) /* use PIO if packet is less than pio_dma_border */ len = usbhsf_fifo_rcv_len(priv, fifo); len = min(pkt->length - pkt->actual, len); - if (len % 4) /* 32bit alignment */ + if (len & 0x7) /* 8byte alignment */ goto usbhsf_pio_prepare_pop_unselect; if (len < usbhs_get_dparam(priv, pio_dma_border)) -- cgit v1.2.1 From f4a53c55117b82e895ec98b1765c9d66940377fc Mon Sep 17 00:00:00 2001 From: Pratyush Anand Date: Thu, 30 Aug 2012 12:21:43 +0530 Subject: usb: dwc3: gadget: fix pending isoc handling If xfernotready is received and there is no request in request_list then REQUEST_PENDING flag must be set, so that next request in ep queue is executed. In case of isoc transfer, if xfernotready is already elapsed and even first request has not been queued to request_list, then issue END TRANSFER, so that you can receive xfernotready again and can have notion of current microframe. Signed-off-by: Pratyush Anand Signed-off-by: Felipe Balbi --- drivers/usb/dwc3/gadget.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index c99568eb4292..c2813c2b005a 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -1029,6 +1029,7 @@ static void __dwc3_gadget_start_isoc(struct dwc3 *dwc, if (list_empty(&dep->request_list)) { dev_vdbg(dwc->dev, "ISOC ep %s run out for requests.\n", dep->name); + dep->flags |= DWC3_EP_PENDING_REQUEST; return; } @@ -1092,6 +1093,17 @@ static int __dwc3_gadget_ep_queue(struct dwc3_ep *dep, struct dwc3_request *req) if (dep->flags & DWC3_EP_PENDING_REQUEST) { int ret; + /* + * If xfernotready is already elapsed and it is a case + * of isoc transfer, then issue END TRANSFER, so that + * you can receive xfernotready again and can have + * notion of current microframe. + */ + if (usb_endpoint_xfer_isoc(dep->endpoint.desc)) { + dwc3_stop_active_transfer(dwc, dep->number); + return 0; + } + ret = __dwc3_gadget_kick_transfer(dep, 0, true); if (ret && ret != -EBUSY) { struct dwc3 *dwc = dep->dwc; -- cgit v1.2.1 From 60e233a56609fd963c59e99bd75c663d63fa91b6 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B8rn=20Mork?= Date: Sun, 2 Sep 2012 15:41:34 +0200 Subject: kobject: fix oops with "input0: bad kobj_uevent_env content in show_uevent()" MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fengguang Wu writes: > After the __devinit* removal series, I can still get kernel panic in > show_uevent(). So there are more sources of bug.. > > Debug patch: > > @@ -343,8 +343,11 @@ static ssize_t show_uevent(struct device > goto out; > > /* copy keys to file */ > - for (i = 0; i < env->envp_idx; i++) > + dev_err(dev, "uevent %d env[%d]: %s/.../%s\n", env->buflen, env->envp_idx, top_kobj->name, dev->kobj.name); > + for (i = 0; i < env->envp_idx; i++) { > + printk(KERN_ERR "uevent %d env[%d]: %s\n", (int)count, i, env->envp[i]); > count += sprintf(&buf[count], "%s\n", env->envp[i]); > + } > > Oops message, the env[] is again not properly initilized: > > [ 44.068623] input input0: uevent 61 env[805306368]: input0/.../input0 > [ 44.069552] uevent 0 env[0]: (null) This is a completely different CONFIG_HOTPLUG problem, only demonstrating another reason why CONFIG_HOTPLUG should go away. I had a hard time trying to disable it anyway ;-) The problem this time is lots of code assuming that a call to add_uevent_var() will guarantee that env->buflen > 0. This is not true if CONFIG_HOTPLUG is unset. So things like this end up overwriting env->envp_idx because the array index is -1: if (add_uevent_var(env, "MODALIAS=")) return -ENOMEM; len = input_print_modalias(&env->buf[env->buflen - 1], sizeof(env->buf) - env->buflen, dev, 0); Don't know what the best action is, given that there seem to be a *lot* of this around the kernel. This patch "fixes" the problem for me, but I don't know if it can be considered an appropriate fix. [ It is the correct fix for now, for 3.7 forcing CONFIG_HOTPLUG to always be on is the longterm fix, but it's too late for 3.6 and older kernels to resolve this that way - gregkh ] Reported-by: Fengguang Wu Signed-off-by: Bjørn Mork Tested-by: Fengguang Wu Cc: stable Signed-off-by: Greg Kroah-Hartman --- include/linux/kobject.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/kobject.h b/include/linux/kobject.h index fc615a97e2d3..1e57449395b1 100644 --- a/include/linux/kobject.h +++ b/include/linux/kobject.h @@ -224,7 +224,7 @@ static inline int kobject_uevent_env(struct kobject *kobj, static inline __printf(2, 3) int add_uevent_var(struct kobj_uevent_env *env, const char *format, ...) -{ return 0; } +{ return -ENOMEM; } static inline int kobject_action_type(const char *buf, size_t count, enum kobject_action *type) -- cgit v1.2.1 From e2f2886a824ff0a56da1eaa13019fde86aa89fa6 Mon Sep 17 00:00:00 2001 From: Pavel Shilovsky Date: Wed, 29 Aug 2012 21:13:38 +0400 Subject: CIFS: Fix error handling in cifs_push_mandatory_locks Cc: Signed-off-by: Pavel Shilovsky Signed-off-by: Steve French --- fs/cifs/file.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/cifs/file.c b/fs/cifs/file.c index 9154192b0683..71e9ad9f5961 100644 --- a/fs/cifs/file.c +++ b/fs/cifs/file.c @@ -917,7 +917,7 @@ cifs_push_mandatory_locks(struct cifsFileInfo *cfile) if (!buf) { mutex_unlock(&cinode->lock_mutex); free_xid(xid); - return rc; + return -ENOMEM; } for (i = 0; i < 2; i++) { -- cgit v1.2.1 From b2ede58e98c87c7f0f44a926f974262f65c3402f Mon Sep 17 00:00:00 2001 From: Pavel Shilovsky Date: Tue, 4 Sep 2012 15:49:31 +0400 Subject: CIFS: Fix endianness conversion Signed-off-by: Pavel Shilovsky Signed-off-by: Steve French --- fs/cifs/smb2pdu.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h index c5fbfac5d576..15dc8eea8273 100644 --- a/fs/cifs/smb2pdu.h +++ b/fs/cifs/smb2pdu.h @@ -96,7 +96,7 @@ * */ -#define SMB2_HEADER_STRUCTURE_SIZE __constant_le16_to_cpu(64) +#define SMB2_HEADER_STRUCTURE_SIZE __constant_cpu_to_le16(64) struct smb2_hdr { __be32 smb2_buf_length; /* big endian on wire */ @@ -140,7 +140,7 @@ struct smb2_pdu { * */ -#define SMB2_ERROR_STRUCTURE_SIZE2 __constant_le16_to_cpu(9) +#define SMB2_ERROR_STRUCTURE_SIZE2 __constant_cpu_to_le16(9) struct smb2_err_rsp { struct smb2_hdr hdr; -- cgit v1.2.1 From 01913b49cf1dc6409a07dd2a4cc6af2e77f3c410 Mon Sep 17 00:00:00 2001 From: Weston Andros Adamson Date: Thu, 6 Sep 2012 15:54:27 -0400 Subject: NFS: return error from decode_getfh in decode open If decode_getfh failed, nfs4_xdr_dec_open would return 0 since the last decode_* call must have succeeded. Cc: stable@vger.kernel.org Signed-off-by: Weston Andros Adamson Signed-off-by: Trond Myklebust --- fs/nfs/nfs4xdr.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c index 541e796e6db5..8dba6bd48557 100644 --- a/fs/nfs/nfs4xdr.c +++ b/fs/nfs/nfs4xdr.c @@ -6225,7 +6225,8 @@ static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, struct xdr_stream *xdr, status = decode_open(xdr, res); if (status) goto out; - if (decode_getfh(xdr, &res->fh) != 0) + status = decode_getfh(xdr, &res->fh); + if (status) goto out; decode_getfattr(xdr, res->f_attr, res->server); out: -- cgit v1.2.1 From 3b75a2c126c4b573553856e0fe08d1bb020ca8c3 Mon Sep 17 00:00:00 2001 From: Ben Collins Date: Thu, 23 Aug 2012 18:39:57 -0400 Subject: crypto/caam: Export gen_split_key symbol for other modules In 3.6-rc3, without this patch, the following error occurs with a modular build: ERROR: "gen_split_key" [drivers/crypto/caam/caamhash.ko] undefined! ERROR: "gen_split_key" [drivers/crypto/caam/caamalg.ko] undefined! Signed-off-by: Ben Collins Cc: Yuan Kang Acked-by: Kim Phillips Signed-off-by: Herbert Xu --- drivers/crypto/caam/key_gen.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/crypto/caam/key_gen.c b/drivers/crypto/caam/key_gen.c index 002888185f17..d216cd3cc569 100644 --- a/drivers/crypto/caam/key_gen.c +++ b/drivers/crypto/caam/key_gen.c @@ -120,3 +120,4 @@ u32 gen_split_key(struct device *jrdev, u8 *key_out, int split_key_len, return ret; } +EXPORT_SYMBOL(gen_split_key); -- cgit v1.2.1 From a32826e4aefa905b392d2d862d51365d50d4829b Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Thu, 6 Sep 2012 17:47:33 -0600 Subject: ASoC: tegra: fix maxburst settings in dmaengine code The I2S controllers are programmed with an "attention" level of 4 DWORDs. This must match the configuration passed to the DMA driver, so that when they burst in data, they don't overflow the available FIFO space. Also, the burst size is relevant to the destination for playback, and source for capture, not vice-versa as originally written. Signed-off-by: Stephen Warren Signed-off-by: Mark Brown Cc: stable@vger.kernel.org --- sound/soc/tegra/tegra_pcm.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/sound/soc/tegra/tegra_pcm.c b/sound/soc/tegra/tegra_pcm.c index 5658bcec1931..8d6900c1ee47 100644 --- a/sound/soc/tegra/tegra_pcm.c +++ b/sound/soc/tegra/tegra_pcm.c @@ -334,11 +334,11 @@ static int tegra_pcm_hw_params(struct snd_pcm_substream *substream, if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { slave_config.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; slave_config.dst_addr = dmap->addr; - slave_config.src_maxburst = 0; + slave_config.dst_maxburst = 4; } else { slave_config.src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; slave_config.src_addr = dmap->addr; - slave_config.dst_maxburst = 0; + slave_config.src_maxburst = 4; } slave_config.slave_id = dmap->req_sel; -- cgit v1.2.1 From 5d2afab958f8cd203a8fe639082b5b5e74f748f9 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Tue, 28 Aug 2012 21:38:49 -0400 Subject: drm/vmwgfx: allow a kconfig option to choose if fbcon is enabled This makes things easier for distros where we'd like to have fbcon enabled all the time. Signed-off-by: Dave Airlie --- drivers/gpu/drm/vmwgfx/Kconfig | 8 ++++++++ drivers/gpu/drm/vmwgfx/vmwgfx_drv.c | 2 +- 2 files changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/vmwgfx/Kconfig b/drivers/gpu/drm/vmwgfx/Kconfig index 794ff67c5701..b71bcd0bfbbf 100644 --- a/drivers/gpu/drm/vmwgfx/Kconfig +++ b/drivers/gpu/drm/vmwgfx/Kconfig @@ -12,3 +12,11 @@ config DRM_VMWGFX This is a KMS enabled DRM driver for the VMware SVGA2 virtual hardware. The compiled module will be called "vmwgfx.ko". + +config DRM_VMWGFX_FBCON + depends on DRM_VMWGFX + bool "Enable framebuffer console under vmwgfx by default" + help + Choose this option if you are shipping a new vmwgfx + userspace driver that supports using the kernel driver. + diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c index 4d9edead01ac..7f4f4eecf45a 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c @@ -183,7 +183,7 @@ static struct pci_device_id vmw_pci_id_list[] = { {0, 0, 0} }; -static int enable_fbdev; +static int enable_fbdev = IS_ENABLED(CONFIG_DRM_VMWGFX_FBCON); static int vmw_probe(struct pci_dev *, const struct pci_device_id *); static void vmw_master_init(struct vmw_master *); -- cgit v1.2.1 From c4903429a92be60e6fe59868924a65eca4cd1a38 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Tue, 28 Aug 2012 21:40:51 -0400 Subject: drm/vmwgfx: add MODULE_DEVICE_TABLE so vmwgfx loads at boot This will cause udev to load vmwgfx instead of waiting for X to do it. Reviewed-by: Jakob Bornecrantz Cc: stable@vger.kernel.org Signed-off-by: Dave Airlie --- drivers/gpu/drm/vmwgfx/vmwgfx_drv.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c index 7f4f4eecf45a..33bfc2033009 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c @@ -182,6 +182,7 @@ static struct pci_device_id vmw_pci_id_list[] = { {0x15ad, 0x0405, PCI_ANY_ID, PCI_ANY_ID, 0, 0, VMWGFX_CHIP_SVGAII}, {0, 0, 0} }; +MODULE_DEVICE_TABLE(pci, vmw_pci_id_list); static int enable_fbdev = IS_ENABLED(CONFIG_DRM_VMWGFX_FBCON); -- cgit v1.2.1 From 50888469bda11bcff306893bbaff21f25894be0b Mon Sep 17 00:00:00 2001 From: Steven Miao Date: Tue, 31 Jul 2012 17:28:10 +0800 Subject: blackfin: smp: adapt to generic smp helpers Replace blackfin ipi message queue with generic smp helper function. Signed-off-by: Steven Miao Signed-off-by: Bob Liu --- arch/blackfin/Kconfig | 1 + arch/blackfin/include/asm/smp.h | 2 + arch/blackfin/mach-common/smp.c | 223 ++++++++++++---------------------------- 3 files changed, 69 insertions(+), 157 deletions(-) diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig index f34861920634..c7092e6057c5 100644 --- a/arch/blackfin/Kconfig +++ b/arch/blackfin/Kconfig @@ -38,6 +38,7 @@ config BLACKFIN select GENERIC_ATOMIC64 select GENERIC_IRQ_PROBE select IRQ_PER_CPU if SMP + select USE_GENERIC_SMP_HELPERS if SMP select HAVE_NMI_WATCHDOG if NMI_WATCHDOG select GENERIC_SMP_IDLE_THREAD select ARCH_USES_GETTIMEOFFSET if !GENERIC_CLOCKEVENTS diff --git a/arch/blackfin/include/asm/smp.h b/arch/blackfin/include/asm/smp.h index dc3d144b4bb5..9631598dcc5d 100644 --- a/arch/blackfin/include/asm/smp.h +++ b/arch/blackfin/include/asm/smp.h @@ -18,6 +18,8 @@ #define raw_smp_processor_id() blackfin_core_id() extern void bfin_relocate_coreb_l1_mem(void); +extern void arch_send_call_function_single_ipi(int cpu); +extern void arch_send_call_function_ipi_mask(const struct cpumask *mask); #if defined(CONFIG_SMP) && defined(CONFIG_ICACHE_FLUSH_L1) asmlinkage void blackfin_icache_flush_range_l1(unsigned long *ptr); diff --git a/arch/blackfin/mach-common/smp.c b/arch/blackfin/mach-common/smp.c index 00bbe672b3b3..a40151306b77 100644 --- a/arch/blackfin/mach-common/smp.c +++ b/arch/blackfin/mach-common/smp.c @@ -48,10 +48,13 @@ unsigned long blackfin_iflush_l1_entry[NR_CPUS]; struct blackfin_initial_pda __cpuinitdata initial_pda_coreb; -#define BFIN_IPI_TIMER 0 -#define BFIN_IPI_RESCHEDULE 1 -#define BFIN_IPI_CALL_FUNC 2 -#define BFIN_IPI_CPU_STOP 3 +enum ipi_message_type { + BFIN_IPI_TIMER, + BFIN_IPI_RESCHEDULE, + BFIN_IPI_CALL_FUNC, + BFIN_IPI_CALL_FUNC_SINGLE, + BFIN_IPI_CPU_STOP, +}; struct blackfin_flush_data { unsigned long start; @@ -60,35 +63,20 @@ struct blackfin_flush_data { void *secondary_stack; - -struct smp_call_struct { - void (*func)(void *info); - void *info; - int wait; - cpumask_t *waitmask; -}; - static struct blackfin_flush_data smp_flush_data; static DEFINE_SPINLOCK(stop_lock); -struct ipi_message { - unsigned long type; - struct smp_call_struct call_struct; -}; - /* A magic number - stress test shows this is safe for common cases */ #define BFIN_IPI_MSGQ_LEN 5 /* Simple FIFO buffer, overflow leads to panic */ -struct ipi_message_queue { - spinlock_t lock; +struct ipi_data { unsigned long count; - unsigned long head; /* head of the queue */ - struct ipi_message ipi_message[BFIN_IPI_MSGQ_LEN]; + unsigned long bits; }; -static DEFINE_PER_CPU(struct ipi_message_queue, ipi_msg_queue); +static DEFINE_PER_CPU(struct ipi_data, bfin_ipi); static void ipi_cpu_stop(unsigned int cpu) { @@ -129,28 +117,6 @@ static void ipi_flush_icache(void *info) blackfin_icache_flush_range(fdata->start, fdata->end); } -static void ipi_call_function(unsigned int cpu, struct ipi_message *msg) -{ - int wait; - void (*func)(void *info); - void *info; - func = msg->call_struct.func; - info = msg->call_struct.info; - wait = msg->call_struct.wait; - func(info); - if (wait) { -#ifdef __ARCH_SYNC_CORE_DCACHE - /* - * 'wait' usually means synchronization between CPUs. - * Invalidate D cache in case shared data was changed - * by func() to ensure cache coherence. - */ - resync_core_dcache(); -#endif - cpumask_clear_cpu(cpu, msg->call_struct.waitmask); - } -} - /* Use IRQ_SUPPLE_0 to request reschedule. * When returning from interrupt to user space, * there is chance to reschedule */ @@ -172,152 +138,95 @@ void ipi_timer(void) static irqreturn_t ipi_handler_int1(int irq, void *dev_instance) { - struct ipi_message *msg; - struct ipi_message_queue *msg_queue; + struct ipi_data *bfin_ipi_data; unsigned int cpu = smp_processor_id(); - unsigned long flags; + unsigned long pending; + unsigned long msg; platform_clear_ipi(cpu, IRQ_SUPPLE_1); - msg_queue = &__get_cpu_var(ipi_msg_queue); - - spin_lock_irqsave(&msg_queue->lock, flags); - - while (msg_queue->count) { - msg = &msg_queue->ipi_message[msg_queue->head]; - switch (msg->type) { - case BFIN_IPI_TIMER: - ipi_timer(); - break; - case BFIN_IPI_RESCHEDULE: - scheduler_ipi(); - break; - case BFIN_IPI_CALL_FUNC: - ipi_call_function(cpu, msg); - break; - case BFIN_IPI_CPU_STOP: - ipi_cpu_stop(cpu); - break; - default: - printk(KERN_CRIT "CPU%u: Unknown IPI message 0x%lx\n", - cpu, msg->type); - break; - } - msg_queue->head++; - msg_queue->head %= BFIN_IPI_MSGQ_LEN; - msg_queue->count--; + bfin_ipi_data = &__get_cpu_var(bfin_ipi); + + while ((pending = xchg(&bfin_ipi_data->bits, 0)) != 0) { + msg = 0; + do { + msg = find_next_bit(&pending, BITS_PER_LONG, msg + 1); + switch (msg) { + case BFIN_IPI_TIMER: + ipi_timer(); + break; + case BFIN_IPI_RESCHEDULE: + scheduler_ipi(); + break; + case BFIN_IPI_CALL_FUNC: + generic_smp_call_function_interrupt(); + break; + + case BFIN_IPI_CALL_FUNC_SINGLE: + generic_smp_call_function_single_interrupt(); + break; + + case BFIN_IPI_CPU_STOP: + ipi_cpu_stop(cpu); + break; + } + } while (msg < BITS_PER_LONG); + + smp_mb(); } - spin_unlock_irqrestore(&msg_queue->lock, flags); return IRQ_HANDLED; } -static void ipi_queue_init(void) +static void bfin_ipi_init(void) { unsigned int cpu; - struct ipi_message_queue *msg_queue; + struct ipi_data *bfin_ipi_data; for_each_possible_cpu(cpu) { - msg_queue = &per_cpu(ipi_msg_queue, cpu); - spin_lock_init(&msg_queue->lock); - msg_queue->count = 0; - msg_queue->head = 0; + bfin_ipi_data = &per_cpu(bfin_ipi, cpu); + bfin_ipi_data->bits = 0; + bfin_ipi_data->count = 0; } } -static inline void smp_send_message(cpumask_t callmap, unsigned long type, - void (*func) (void *info), void *info, int wait) +void send_ipi(const struct cpumask *cpumask, enum ipi_message_type msg) { unsigned int cpu; - struct ipi_message_queue *msg_queue; - struct ipi_message *msg; - unsigned long flags, next_msg; - cpumask_t waitmask; /* waitmask is shared by all cpus */ - - cpumask_copy(&waitmask, &callmap); - for_each_cpu(cpu, &callmap) { - msg_queue = &per_cpu(ipi_msg_queue, cpu); - spin_lock_irqsave(&msg_queue->lock, flags); - if (msg_queue->count < BFIN_IPI_MSGQ_LEN) { - next_msg = (msg_queue->head + msg_queue->count) - % BFIN_IPI_MSGQ_LEN; - msg = &msg_queue->ipi_message[next_msg]; - msg->type = type; - if (type == BFIN_IPI_CALL_FUNC) { - msg->call_struct.func = func; - msg->call_struct.info = info; - msg->call_struct.wait = wait; - msg->call_struct.waitmask = &waitmask; - } - msg_queue->count++; - } else - panic("IPI message queue overflow\n"); - spin_unlock_irqrestore(&msg_queue->lock, flags); + struct ipi_data *bfin_ipi_data; + unsigned long flags; + + local_irq_save(flags); + + for_each_cpu(cpu, cpumask) { + bfin_ipi_data = &per_cpu(bfin_ipi, cpu); + smp_mb(); + set_bit(msg, &bfin_ipi_data->bits); + bfin_ipi_data->count++; platform_send_ipi_cpu(cpu, IRQ_SUPPLE_1); } - if (wait) { - while (!cpumask_empty(&waitmask)) - blackfin_dcache_invalidate_range( - (unsigned long)(&waitmask), - (unsigned long)(&waitmask)); -#ifdef __ARCH_SYNC_CORE_DCACHE - /* - * Invalidate D cache in case shared data was changed by - * other processors to ensure cache coherence. - */ - resync_core_dcache(); -#endif - } + local_irq_restore(flags); } -int smp_call_function(void (*func)(void *info), void *info, int wait) +void arch_send_call_function_single_ipi(int cpu) { - cpumask_t callmap; - - preempt_disable(); - cpumask_copy(&callmap, cpu_online_mask); - cpumask_clear_cpu(smp_processor_id(), &callmap); - if (!cpumask_empty(&callmap)) - smp_send_message(callmap, BFIN_IPI_CALL_FUNC, func, info, wait); - - preempt_enable(); - - return 0; + send_ipi(cpumask_of(cpu), BFIN_IPI_CALL_FUNC_SINGLE); } -EXPORT_SYMBOL_GPL(smp_call_function); -int smp_call_function_single(int cpuid, void (*func) (void *info), void *info, - int wait) +void arch_send_call_function_ipi_mask(const struct cpumask *mask) { - unsigned int cpu = cpuid; - cpumask_t callmap; - - if (cpu_is_offline(cpu)) - return 0; - cpumask_clear(&callmap); - cpumask_set_cpu(cpu, &callmap); - - smp_send_message(callmap, BFIN_IPI_CALL_FUNC, func, info, wait); - - return 0; + send_ipi(mask, BFIN_IPI_CALL_FUNC); } -EXPORT_SYMBOL_GPL(smp_call_function_single); void smp_send_reschedule(int cpu) { - cpumask_t callmap; - /* simply trigger an ipi */ - - cpumask_clear(&callmap); - cpumask_set_cpu(cpu, &callmap); - - smp_send_message(callmap, BFIN_IPI_RESCHEDULE, NULL, NULL, 0); + send_ipi(cpumask_of(cpu), BFIN_IPI_RESCHEDULE); return; } void smp_send_msg(const struct cpumask *mask, unsigned long type) { - smp_send_message(*mask, type, NULL, NULL, 0); + send_ipi(mask, type); } void smp_timer_broadcast(const struct cpumask *mask) @@ -333,7 +242,7 @@ void smp_send_stop(void) cpumask_copy(&callmap, cpu_online_mask); cpumask_clear_cpu(smp_processor_id(), &callmap); if (!cpumask_empty(&callmap)) - smp_send_message(callmap, BFIN_IPI_CPU_STOP, NULL, NULL, 0); + send_ipi(&callmap, BFIN_IPI_CPU_STOP); preempt_enable(); @@ -436,7 +345,7 @@ void __init smp_prepare_boot_cpu(void) void __init smp_prepare_cpus(unsigned int max_cpus) { platform_prepare_cpus(max_cpus); - ipi_queue_init(); + bfin_ipi_init(); platform_request_ipi(IRQ_SUPPLE_0, ipi_handler_int0); platform_request_ipi(IRQ_SUPPLE_1, ipi_handler_int1); } -- cgit v1.2.1 From f39c1bfb5a03e2d255451bff05be0d7255298fa4 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Fri, 7 Sep 2012 11:08:50 -0400 Subject: SUNRPC: Fix a UDP transport regression Commit 43cedbf0e8dfb9c5610eb7985d5f21263e313802 (SUNRPC: Ensure that we grab the XPRT_LOCK before calling xprt_alloc_slot) is causing hangs in the case of NFS over UDP mounts. Since neither the UDP or the RDMA transport mechanism use dynamic slot allocation, we can skip grabbing the socket lock for those transports. Add a new rpc_xprt_op to allow switching between the TCP and UDP/RDMA case. Note that the NFSv4.1 back channel assigns the slot directly through rpc_run_bc_task, so we can ignore that case. Reported-by: Dick Streefland Signed-off-by: Trond Myklebust Cc: stable@vger.kernel.org [>= 3.1] --- include/linux/sunrpc/xprt.h | 3 +++ net/sunrpc/xprt.c | 34 ++++++++++++++++++++-------------- net/sunrpc/xprtrdma/transport.c | 1 + net/sunrpc/xprtsock.c | 3 +++ 4 files changed, 27 insertions(+), 14 deletions(-) diff --git a/include/linux/sunrpc/xprt.h b/include/linux/sunrpc/xprt.h index cff40aa7db62..bf8c49ff7530 100644 --- a/include/linux/sunrpc/xprt.h +++ b/include/linux/sunrpc/xprt.h @@ -114,6 +114,7 @@ struct rpc_xprt_ops { void (*set_buffer_size)(struct rpc_xprt *xprt, size_t sndsize, size_t rcvsize); int (*reserve_xprt)(struct rpc_xprt *xprt, struct rpc_task *task); void (*release_xprt)(struct rpc_xprt *xprt, struct rpc_task *task); + void (*alloc_slot)(struct rpc_xprt *xprt, struct rpc_task *task); void (*rpcbind)(struct rpc_task *task); void (*set_port)(struct rpc_xprt *xprt, unsigned short port); void (*connect)(struct rpc_task *task); @@ -281,6 +282,8 @@ void xprt_connect(struct rpc_task *task); void xprt_reserve(struct rpc_task *task); int xprt_reserve_xprt(struct rpc_xprt *xprt, struct rpc_task *task); int xprt_reserve_xprt_cong(struct rpc_xprt *xprt, struct rpc_task *task); +void xprt_alloc_slot(struct rpc_xprt *xprt, struct rpc_task *task); +void xprt_lock_and_alloc_slot(struct rpc_xprt *xprt, struct rpc_task *task); int xprt_prepare_transmit(struct rpc_task *task); void xprt_transmit(struct rpc_task *task); void xprt_end_transmit(struct rpc_task *task); diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c index a5a402a7d21f..5d7f61d7559c 100644 --- a/net/sunrpc/xprt.c +++ b/net/sunrpc/xprt.c @@ -969,11 +969,11 @@ static bool xprt_dynamic_free_slot(struct rpc_xprt *xprt, struct rpc_rqst *req) return false; } -static void xprt_alloc_slot(struct rpc_task *task) +void xprt_alloc_slot(struct rpc_xprt *xprt, struct rpc_task *task) { - struct rpc_xprt *xprt = task->tk_xprt; struct rpc_rqst *req; + spin_lock(&xprt->reserve_lock); if (!list_empty(&xprt->free)) { req = list_entry(xprt->free.next, struct rpc_rqst, rq_list); list_del(&req->rq_list); @@ -994,12 +994,29 @@ static void xprt_alloc_slot(struct rpc_task *task) default: task->tk_status = -EAGAIN; } + spin_unlock(&xprt->reserve_lock); return; out_init_req: task->tk_status = 0; task->tk_rqstp = req; xprt_request_init(task, xprt); + spin_unlock(&xprt->reserve_lock); +} +EXPORT_SYMBOL_GPL(xprt_alloc_slot); + +void xprt_lock_and_alloc_slot(struct rpc_xprt *xprt, struct rpc_task *task) +{ + /* Note: grabbing the xprt_lock_write() ensures that we throttle + * new slot allocation if the transport is congested (i.e. when + * reconnecting a stream transport or when out of socket write + * buffer space). + */ + if (xprt_lock_write(xprt, task)) { + xprt_alloc_slot(xprt, task); + xprt_release_write(xprt, task); + } } +EXPORT_SYMBOL_GPL(xprt_lock_and_alloc_slot); static void xprt_free_slot(struct rpc_xprt *xprt, struct rpc_rqst *req) { @@ -1083,20 +1100,9 @@ void xprt_reserve(struct rpc_task *task) if (task->tk_rqstp != NULL) return; - /* Note: grabbing the xprt_lock_write() here is not strictly needed, - * but ensures that we throttle new slot allocation if the transport - * is congested (e.g. if reconnecting or if we're out of socket - * write buffer space). - */ task->tk_timeout = 0; task->tk_status = -EAGAIN; - if (!xprt_lock_write(xprt, task)) - return; - - spin_lock(&xprt->reserve_lock); - xprt_alloc_slot(task); - spin_unlock(&xprt->reserve_lock); - xprt_release_write(xprt, task); + xprt->ops->alloc_slot(xprt, task); } static inline __be32 xprt_alloc_xid(struct rpc_xprt *xprt) diff --git a/net/sunrpc/xprtrdma/transport.c b/net/sunrpc/xprtrdma/transport.c index 06cdbff79e4a..5d9202dc7cb1 100644 --- a/net/sunrpc/xprtrdma/transport.c +++ b/net/sunrpc/xprtrdma/transport.c @@ -713,6 +713,7 @@ static void xprt_rdma_print_stats(struct rpc_xprt *xprt, struct seq_file *seq) static struct rpc_xprt_ops xprt_rdma_procs = { .reserve_xprt = xprt_rdma_reserve_xprt, .release_xprt = xprt_release_xprt_cong, /* sunrpc/xprt.c */ + .alloc_slot = xprt_alloc_slot, .release_request = xprt_release_rqst_cong, /* ditto */ .set_retrans_timeout = xprt_set_retrans_timeout_def, /* ditto */ .rpcbind = rpcb_getport_async, /* sunrpc/rpcb_clnt.c */ diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c index 400567243f84..a35b8e52e551 100644 --- a/net/sunrpc/xprtsock.c +++ b/net/sunrpc/xprtsock.c @@ -2473,6 +2473,7 @@ static void bc_destroy(struct rpc_xprt *xprt) static struct rpc_xprt_ops xs_local_ops = { .reserve_xprt = xprt_reserve_xprt, .release_xprt = xs_tcp_release_xprt, + .alloc_slot = xprt_alloc_slot, .rpcbind = xs_local_rpcbind, .set_port = xs_local_set_port, .connect = xs_connect, @@ -2489,6 +2490,7 @@ static struct rpc_xprt_ops xs_udp_ops = { .set_buffer_size = xs_udp_set_buffer_size, .reserve_xprt = xprt_reserve_xprt_cong, .release_xprt = xprt_release_xprt_cong, + .alloc_slot = xprt_alloc_slot, .rpcbind = rpcb_getport_async, .set_port = xs_set_port, .connect = xs_connect, @@ -2506,6 +2508,7 @@ static struct rpc_xprt_ops xs_udp_ops = { static struct rpc_xprt_ops xs_tcp_ops = { .reserve_xprt = xprt_reserve_xprt, .release_xprt = xs_tcp_release_xprt, + .alloc_slot = xprt_lock_and_alloc_slot, .rpcbind = rpcb_getport_async, .set_port = xs_set_port, .connect = xs_connect, -- cgit v1.2.1 From a8edc3bf05a3465726afdf635a820761fae0d50b Mon Sep 17 00:00:00 2001 From: Hadar Hen Zion Date: Wed, 5 Sep 2012 22:50:48 +0000 Subject: net/mlx4_core: Put Firmware flow steering structures in common header files To allow for usage of the flow steering Firmware structures in more locations over the driver, such as the resource tracker, move them from mcg.c to common header files. Signed-off-by: Hadar Hen Zion Signed-off-by: Or Gerlitz Signed-off-by: David S. Miller --- drivers/net/ethernet/mellanox/mlx4/mcg.c | 90 +++---------------------------- drivers/net/ethernet/mellanox/mlx4/mlx4.h | 76 ++++++++++++++++++++++++++ include/linux/mlx4/device.h | 2 + 3 files changed, 85 insertions(+), 83 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx4/mcg.c b/drivers/net/ethernet/mellanox/mlx4/mcg.c index a018ea2a43de..2673f3ba935f 100644 --- a/drivers/net/ethernet/mellanox/mlx4/mcg.c +++ b/drivers/net/ethernet/mellanox/mlx4/mcg.c @@ -650,13 +650,6 @@ static int find_entry(struct mlx4_dev *dev, u8 port, return err; } -struct mlx4_net_trans_rule_hw_ctrl { - __be32 ctrl; - __be32 vf_vep_port; - __be32 qpn; - __be32 reserved; -}; - static void trans_rule_ctrl_to_hw(struct mlx4_net_trans_rule *ctrl, struct mlx4_net_trans_rule_hw_ctrl *hw) { @@ -680,87 +673,18 @@ static void trans_rule_ctrl_to_hw(struct mlx4_net_trans_rule *ctrl, hw->qpn = cpu_to_be32(ctrl->qpn); } -struct mlx4_net_trans_rule_hw_ib { - u8 size; - u8 rsvd1; - __be16 id; - u32 rsvd2; - __be32 qpn; - __be32 qpn_mask; - u8 dst_gid[16]; - u8 dst_gid_msk[16]; -} __packed; - -struct mlx4_net_trans_rule_hw_eth { - u8 size; - u8 rsvd; - __be16 id; - u8 rsvd1[6]; - u8 dst_mac[6]; - u16 rsvd2; - u8 dst_mac_msk[6]; - u16 rsvd3; - u8 src_mac[6]; - u16 rsvd4; - u8 src_mac_msk[6]; - u8 rsvd5; - u8 ether_type_enable; - __be16 ether_type; - __be16 vlan_id_msk; - __be16 vlan_id; -} __packed; - -struct mlx4_net_trans_rule_hw_tcp_udp { - u8 size; - u8 rsvd; - __be16 id; - __be16 rsvd1[3]; - __be16 dst_port; - __be16 rsvd2; - __be16 dst_port_msk; - __be16 rsvd3; - __be16 src_port; - __be16 rsvd4; - __be16 src_port_msk; -} __packed; - -struct mlx4_net_trans_rule_hw_ipv4 { - u8 size; - u8 rsvd; - __be16 id; - __be32 rsvd1; - __be32 dst_ip; - __be32 dst_ip_msk; - __be32 src_ip; - __be32 src_ip_msk; -} __packed; - -struct _rule_hw { - union { - struct { - u8 size; - u8 rsvd; - __be16 id; - }; - struct mlx4_net_trans_rule_hw_eth eth; - struct mlx4_net_trans_rule_hw_ib ib; - struct mlx4_net_trans_rule_hw_ipv4 ipv4; - struct mlx4_net_trans_rule_hw_tcp_udp tcp_udp; - }; +const u16 __sw_id_hw[] = { + [MLX4_NET_TRANS_RULE_ID_ETH] = 0xE001, + [MLX4_NET_TRANS_RULE_ID_IB] = 0xE005, + [MLX4_NET_TRANS_RULE_ID_IPV6] = 0xE003, + [MLX4_NET_TRANS_RULE_ID_IPV4] = 0xE002, + [MLX4_NET_TRANS_RULE_ID_TCP] = 0xE004, + [MLX4_NET_TRANS_RULE_ID_UDP] = 0xE006 }; static int parse_trans_rule(struct mlx4_dev *dev, struct mlx4_spec_list *spec, struct _rule_hw *rule_hw) { - static const u16 __sw_id_hw[] = { - [MLX4_NET_TRANS_RULE_ID_ETH] = 0xE001, - [MLX4_NET_TRANS_RULE_ID_IB] = 0xE005, - [MLX4_NET_TRANS_RULE_ID_IPV6] = 0xE003, - [MLX4_NET_TRANS_RULE_ID_IPV4] = 0xE002, - [MLX4_NET_TRANS_RULE_ID_TCP] = 0xE004, - [MLX4_NET_TRANS_RULE_ID_UDP] = 0xE006 - }; - static const size_t __rule_hw_sz[] = { [MLX4_NET_TRANS_RULE_ID_ETH] = sizeof(struct mlx4_net_trans_rule_hw_eth), diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4.h b/drivers/net/ethernet/mellanox/mlx4/mlx4.h index 4d9df8f2a126..dba69d98734a 100644 --- a/drivers/net/ethernet/mellanox/mlx4/mlx4.h +++ b/drivers/net/ethernet/mellanox/mlx4/mlx4.h @@ -690,6 +690,82 @@ struct mlx4_steer { struct list_head steer_entries[MLX4_NUM_STEERS]; }; +struct mlx4_net_trans_rule_hw_ctrl { + __be32 ctrl; + __be32 vf_vep_port; + __be32 qpn; + __be32 reserved; +}; + +struct mlx4_net_trans_rule_hw_ib { + u8 size; + u8 rsvd1; + __be16 id; + u32 rsvd2; + __be32 qpn; + __be32 qpn_mask; + u8 dst_gid[16]; + u8 dst_gid_msk[16]; +} __packed; + +struct mlx4_net_trans_rule_hw_eth { + u8 size; + u8 rsvd; + __be16 id; + u8 rsvd1[6]; + u8 dst_mac[6]; + u16 rsvd2; + u8 dst_mac_msk[6]; + u16 rsvd3; + u8 src_mac[6]; + u16 rsvd4; + u8 src_mac_msk[6]; + u8 rsvd5; + u8 ether_type_enable; + __be16 ether_type; + __be16 vlan_id_msk; + __be16 vlan_id; +} __packed; + +struct mlx4_net_trans_rule_hw_tcp_udp { + u8 size; + u8 rsvd; + __be16 id; + __be16 rsvd1[3]; + __be16 dst_port; + __be16 rsvd2; + __be16 dst_port_msk; + __be16 rsvd3; + __be16 src_port; + __be16 rsvd4; + __be16 src_port_msk; +} __packed; + +struct mlx4_net_trans_rule_hw_ipv4 { + u8 size; + u8 rsvd; + __be16 id; + __be32 rsvd1; + __be32 dst_ip; + __be32 dst_ip_msk; + __be32 src_ip; + __be32 src_ip_msk; +} __packed; + +struct _rule_hw { + union { + struct { + u8 size; + u8 rsvd; + __be16 id; + }; + struct mlx4_net_trans_rule_hw_eth eth; + struct mlx4_net_trans_rule_hw_ib ib; + struct mlx4_net_trans_rule_hw_ipv4 ipv4; + struct mlx4_net_trans_rule_hw_tcp_udp tcp_udp; + }; +}; + struct mlx4_priv { struct mlx4_dev dev; diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h index bd6c9fcdf2dd..244ba902ab72 100644 --- a/include/linux/mlx4/device.h +++ b/include/linux/mlx4/device.h @@ -796,6 +796,8 @@ enum mlx4_net_trans_rule_id { MLX4_NET_TRANS_RULE_NUM, /* should be last */ }; +extern const u16 __sw_id_hw[]; + enum mlx4_net_trans_promisc_mode { MLX4_FS_PROMISC_NONE = 0, MLX4_FS_PROMISC_UPLINK, -- cgit v1.2.1 From 7fb40f87c4195ec1728527f30bc744c47a45b366 Mon Sep 17 00:00:00 2001 From: Hadar Hen Zion Date: Wed, 5 Sep 2012 22:50:49 +0000 Subject: net/mlx4_core: Add security check / enforcement for flow steering rules set for VMs Since VFs may be mapped to VMs which aren't trusted entities, flow steering rules attached through the wrapper on behalf of VFs must be checked to make sure that their L2 specification relate to MAC address assigned to that VF, and add L2 specification if its missing. Signed-off-by: Hadar Hen Zion Signed-off-by: Or Gerlitz Signed-off-by: David S. Miller --- .../net/ethernet/mellanox/mlx4/resource_tracker.c | 116 +++++++++++++++++++++ include/linux/mlx4/device.h | 11 ++ 2 files changed, 127 insertions(+) diff --git a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c index 94ceddd17ab2..293c9e820c49 100644 --- a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c +++ b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c @@ -42,6 +42,7 @@ #include #include #include +#include #include "mlx4.h" #include "fw.h" @@ -2776,18 +2777,133 @@ ex_put: return err; } +/* + * MAC validation for Flow Steering rules. + * VF can attach rules only with a mac address which is assigned to it. + */ +static int validate_eth_header_mac(int slave, struct _rule_hw *eth_header, + struct list_head *rlist) +{ + struct mac_res *res, *tmp; + __be64 be_mac; + + /* make sure it isn't multicast or broadcast mac*/ + if (!is_multicast_ether_addr(eth_header->eth.dst_mac) && + !is_broadcast_ether_addr(eth_header->eth.dst_mac)) { + list_for_each_entry_safe(res, tmp, rlist, list) { + be_mac = cpu_to_be64(res->mac << 16); + if (!memcmp(&be_mac, eth_header->eth.dst_mac, ETH_ALEN)) + return 0; + } + pr_err("MAC %pM doesn't belong to VF %d, Steering rule rejected\n", + eth_header->eth.dst_mac, slave); + return -EINVAL; + } + return 0; +} + +/* + * In case of missing eth header, append eth header with a MAC address + * assigned to the VF. + */ +static int add_eth_header(struct mlx4_dev *dev, int slave, + struct mlx4_cmd_mailbox *inbox, + struct list_head *rlist, int header_id) +{ + struct mac_res *res, *tmp; + u8 port; + struct mlx4_net_trans_rule_hw_ctrl *ctrl; + struct mlx4_net_trans_rule_hw_eth *eth_header; + struct mlx4_net_trans_rule_hw_ipv4 *ip_header; + struct mlx4_net_trans_rule_hw_tcp_udp *l4_header; + __be64 be_mac = 0; + __be64 mac_msk = cpu_to_be64(MLX4_MAC_MASK << 16); + + ctrl = (struct mlx4_net_trans_rule_hw_ctrl *)inbox->buf; + port = be32_to_cpu(ctrl->vf_vep_port) & 0xff; + eth_header = (struct mlx4_net_trans_rule_hw_eth *)(ctrl + 1); + + /* Clear a space in the inbox for eth header */ + switch (header_id) { + case MLX4_NET_TRANS_RULE_ID_IPV4: + ip_header = + (struct mlx4_net_trans_rule_hw_ipv4 *)(eth_header + 1); + memmove(ip_header, eth_header, + sizeof(*ip_header) + sizeof(*l4_header)); + break; + case MLX4_NET_TRANS_RULE_ID_TCP: + case MLX4_NET_TRANS_RULE_ID_UDP: + l4_header = (struct mlx4_net_trans_rule_hw_tcp_udp *) + (eth_header + 1); + memmove(l4_header, eth_header, sizeof(*l4_header)); + break; + default: + return -EINVAL; + } + list_for_each_entry_safe(res, tmp, rlist, list) { + if (port == res->port) { + be_mac = cpu_to_be64(res->mac << 16); + break; + } + } + if (!be_mac) { + pr_err("Failed adding eth header to FS rule, Can't find matching MAC for port %d .\n", + port); + return -EINVAL; + } + + memset(eth_header, 0, sizeof(*eth_header)); + eth_header->size = sizeof(*eth_header) >> 2; + eth_header->id = cpu_to_be16(__sw_id_hw[MLX4_NET_TRANS_RULE_ID_ETH]); + memcpy(eth_header->dst_mac, &be_mac, ETH_ALEN); + memcpy(eth_header->dst_mac_msk, &mac_msk, ETH_ALEN); + + return 0; + +} + int mlx4_QP_FLOW_STEERING_ATTACH_wrapper(struct mlx4_dev *dev, int slave, struct mlx4_vhcr *vhcr, struct mlx4_cmd_mailbox *inbox, struct mlx4_cmd_mailbox *outbox, struct mlx4_cmd_info *cmd) { + + struct mlx4_priv *priv = mlx4_priv(dev); + struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; + struct list_head *rlist = &tracker->slave_list[slave].res_list[RES_MAC]; int err; + struct mlx4_net_trans_rule_hw_ctrl *ctrl; + struct _rule_hw *rule_header; + int header_id; if (dev->caps.steering_mode != MLX4_STEERING_MODE_DEVICE_MANAGED) return -EOPNOTSUPP; + ctrl = (struct mlx4_net_trans_rule_hw_ctrl *)inbox->buf; + rule_header = (struct _rule_hw *)(ctrl + 1); + header_id = map_hw_to_sw_id(be16_to_cpu(rule_header->id)); + + switch (header_id) { + case MLX4_NET_TRANS_RULE_ID_ETH: + if (validate_eth_header_mac(slave, rule_header, rlist)) + return -EINVAL; + break; + case MLX4_NET_TRANS_RULE_ID_IPV4: + case MLX4_NET_TRANS_RULE_ID_TCP: + case MLX4_NET_TRANS_RULE_ID_UDP: + pr_warn("Can't attach FS rule without L2 headers, adding L2 header.\n"); + if (add_eth_header(dev, slave, inbox, rlist, header_id)) + return -EINVAL; + vhcr->in_modifier += + sizeof(struct mlx4_net_trans_rule_hw_eth) >> 2; + break; + default: + pr_err("Corrupted mailbox.\n"); + return -EINVAL; + } + err = mlx4_cmd_imm(dev, inbox->dma, &vhcr->out_param, vhcr->in_modifier, 0, MLX4_QP_FLOW_STEERING_ATTACH, MLX4_CMD_TIME_CLASS_A, diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h index 244ba902ab72..6e1b0f973a03 100644 --- a/include/linux/mlx4/device.h +++ b/include/linux/mlx4/device.h @@ -798,6 +798,17 @@ enum mlx4_net_trans_rule_id { extern const u16 __sw_id_hw[]; +static inline int map_hw_to_sw_id(u16 header_id) +{ + + int i; + for (i = 0; i < MLX4_NET_TRANS_RULE_NUM; i++) { + if (header_id == __sw_id_hw[i]) + return i; + } + return -EINVAL; +} + enum mlx4_net_trans_promisc_mode { MLX4_FS_PROMISC_NONE = 0, MLX4_FS_PROMISC_UPLINK, -- cgit v1.2.1 From 60d31c1475f20b6966f7efbd646b1123d0fba5b1 Mon Sep 17 00:00:00 2001 From: Aviad Yehezkel Date: Wed, 5 Sep 2012 22:50:50 +0000 Subject: net/mlx4_core: Looking for promiscuous entries on the correct port The search for promisc entries was always done on the first port, While the addition is done on the correct port. This lead to resource leackage of promisc entries on the second port and brought to a state where we could no longer enter to promiscuous mode after enough iterations of "ifconfig promisc" on the second port. Fix that by using the correct port when searching. Reported-by: Marcelo Ricardo Leitner Signed-off-by: Aviad Yehezkel Signed-off-by: Yevgeny Petrilin Signed-off-by: David S. Miller --- drivers/net/ethernet/mellanox/mlx4/mcg.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx4/mcg.c b/drivers/net/ethernet/mellanox/mlx4/mcg.c index 2673f3ba935f..e151c21baf2b 100644 --- a/drivers/net/ethernet/mellanox/mlx4/mcg.c +++ b/drivers/net/ethernet/mellanox/mlx4/mcg.c @@ -137,11 +137,11 @@ static int mlx4_GID_HASH(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox, return err; } -static struct mlx4_promisc_qp *get_promisc_qp(struct mlx4_dev *dev, u8 pf_num, +static struct mlx4_promisc_qp *get_promisc_qp(struct mlx4_dev *dev, u8 port, enum mlx4_steer_type steer, u32 qpn) { - struct mlx4_steer *s_steer = &mlx4_priv(dev)->steer[pf_num]; + struct mlx4_steer *s_steer = &mlx4_priv(dev)->steer[port - 1]; struct mlx4_promisc_qp *pqp; list_for_each_entry(pqp, &s_steer->promisc_qps[steer], list) { @@ -182,7 +182,7 @@ static int new_steering_entry(struct mlx4_dev *dev, u8 port, /* If the given qpn is also a promisc qp, * it should be inserted to duplicates list */ - pqp = get_promisc_qp(dev, 0, steer, qpn); + pqp = get_promisc_qp(dev, port, steer, qpn); if (pqp) { dqp = kmalloc(sizeof *dqp, GFP_KERNEL); if (!dqp) { @@ -256,7 +256,7 @@ static int existing_steering_entry(struct mlx4_dev *dev, u8 port, s_steer = &mlx4_priv(dev)->steer[port - 1]; - pqp = get_promisc_qp(dev, 0, steer, qpn); + pqp = get_promisc_qp(dev, port, steer, qpn); if (!pqp) return 0; /* nothing to do */ @@ -302,7 +302,7 @@ static bool check_duplicate_entry(struct mlx4_dev *dev, u8 port, s_steer = &mlx4_priv(dev)->steer[port - 1]; /* if qp is not promisc, it cannot be duplicated */ - if (!get_promisc_qp(dev, 0, steer, qpn)) + if (!get_promisc_qp(dev, port, steer, qpn)) return false; /* The qp is promisc qp so it is a duplicate on this index @@ -352,7 +352,7 @@ static bool can_remove_steering_entry(struct mlx4_dev *dev, u8 port, members_count = be32_to_cpu(mgm->members_count) & 0xffffff; for (i = 0; i < members_count; i++) { qpn = be32_to_cpu(mgm->qp[i]) & MGM_QPN_MASK; - if (!get_promisc_qp(dev, 0, steer, qpn) && qpn != tqpn) { + if (!get_promisc_qp(dev, port, steer, qpn) && qpn != tqpn) { /* the qp is not promisc, the entry can't be removed */ goto out; } @@ -398,7 +398,7 @@ static int add_promisc_qp(struct mlx4_dev *dev, u8 port, mutex_lock(&priv->mcg_table.mutex); - if (get_promisc_qp(dev, 0, steer, qpn)) { + if (get_promisc_qp(dev, port, steer, qpn)) { err = 0; /* Noting to do, already exists */ goto out_mutex; } @@ -503,7 +503,7 @@ static int remove_promisc_qp(struct mlx4_dev *dev, u8 port, s_steer = &mlx4_priv(dev)->steer[port - 1]; mutex_lock(&priv->mcg_table.mutex); - pqp = get_promisc_qp(dev, 0, steer, qpn); + pqp = get_promisc_qp(dev, port, steer, qpn); if (unlikely(!pqp)) { mlx4_warn(dev, "QP %x is not promiscuous QP\n", qpn); /* nothing to do */ -- cgit v1.2.1 From bef772eb06051f49e84c3168f189b65074f19c3d Mon Sep 17 00:00:00 2001 From: Aviad Yehezkel Date: Wed, 5 Sep 2012 22:50:51 +0000 Subject: net/mlx4_core: Fixing error flow in case of QUERY_FW failure The order of operations was wrong on the teardown flow. Signed-off-by: Aviad Yehezkel Signed-off-by: Yevgeny Petrilin Signed-off-by: David S. Miller --- drivers/net/ethernet/mellanox/mlx4/main.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c index 827b72dfce99..0fadac546b00 100644 --- a/drivers/net/ethernet/mellanox/mlx4/main.c +++ b/drivers/net/ethernet/mellanox/mlx4/main.c @@ -1234,13 +1234,13 @@ static int mlx4_init_hca(struct mlx4_dev *dev) mlx4_info(dev, "non-primary physical function, skipping.\n"); else mlx4_err(dev, "QUERY_FW command failed, aborting.\n"); - goto unmap_bf; + return err; } err = mlx4_load_fw(dev); if (err) { mlx4_err(dev, "Failed to start FW, aborting.\n"); - goto unmap_bf; + return err; } mlx4_cfg.log_pg_sz_m = 1; @@ -1304,7 +1304,7 @@ static int mlx4_init_hca(struct mlx4_dev *dev) err = mlx4_init_slave(dev); if (err) { mlx4_err(dev, "Failed to initialize slave\n"); - goto unmap_bf; + return err; } err = mlx4_slave_cap(dev); @@ -1324,7 +1324,7 @@ static int mlx4_init_hca(struct mlx4_dev *dev) err = mlx4_QUERY_ADAPTER(dev, &adapter); if (err) { mlx4_err(dev, "QUERY_ADAPTER command failed, aborting.\n"); - goto err_close; + goto unmap_bf; } priv->eq_table.inta_pin = adapter.inta_pin; @@ -1332,6 +1332,9 @@ static int mlx4_init_hca(struct mlx4_dev *dev) return 0; +unmap_bf: + unmap_bf_area(dev); + err_close: mlx4_close_hca(dev); @@ -1344,8 +1347,6 @@ err_stop_fw: mlx4_UNMAP_FA(dev); mlx4_free_icm(dev, priv->fw.fw_icm, 0); } -unmap_bf: - unmap_bf_area(dev); return err; } -- cgit v1.2.1 From 521130d11fd37b328543477df5522704a0e7cf2c Mon Sep 17 00:00:00 2001 From: Eugenia Emantayev Date: Wed, 5 Sep 2012 22:50:52 +0000 Subject: net/mlx4_core: Return the error value in case of command initialization failure If mlx4_cmd_init() failed, the init_one function returned success, although no resources were opened. Signed-off-by: Eugenia Emantayev Signed-off-by: Yevgeny Petrilin Signed-off-by: David S. Miller --- drivers/net/ethernet/mellanox/mlx4/main.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c index 0fadac546b00..2f816c6aed72 100644 --- a/drivers/net/ethernet/mellanox/mlx4/main.c +++ b/drivers/net/ethernet/mellanox/mlx4/main.c @@ -1997,7 +1997,8 @@ static int __mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id) } slave_start: - if (mlx4_cmd_init(dev)) { + err = mlx4_cmd_init(dev); + if (err) { mlx4_err(dev, "Failed to init command interface, aborting.\n"); goto err_sriov; } -- cgit v1.2.1 From 979402b16cde048ced4839e21cc49e0779352b80 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Wed, 5 Sep 2012 23:34:44 +0000 Subject: udp: increment UDP_MIB_INERRORS if copy failed In UDP recvmsg(), we miss an increase of UDP_MIB_INERRORS if the copy of skb to userspace failed for whatever reason. Reported-by: Shawn Bohrer Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- net/ipv4/udp.c | 5 +++++ net/ipv6/udp.c | 11 +++++++++++ 2 files changed, 16 insertions(+) diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index 6f6d1aca3c3d..2814f66dac64 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -1226,6 +1226,11 @@ try_again: if (unlikely(err)) { trace_kfree_skb(skb, udp_recvmsg); + if (!peeked) { + atomic_inc(&sk->sk_drops); + UDP_INC_STATS_USER(sock_net(sk), + UDP_MIB_INERRORS, is_udplite); + } goto out_free; } diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index 99d0077b56b8..07e2bfef6845 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -394,6 +394,17 @@ try_again: } if (unlikely(err)) { trace_kfree_skb(skb, udpv6_recvmsg); + if (!peeked) { + atomic_inc(&sk->sk_drops); + if (is_udp4) + UDP_INC_STATS_USER(sock_net(sk), + UDP_MIB_INERRORS, + is_udplite); + else + UDP6_INC_STATS_USER(sock_net(sk), + UDP_MIB_INERRORS, + is_udplite); + } goto out_free; } if (!peeked) { -- cgit v1.2.1 From b8dfc6a0a7235aed452c0e376b6feff182a86992 Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Thu, 6 Sep 2012 00:47:05 +0000 Subject: |PATCH] seeq: Add missing spinlock init It doesn't seem this spinlock was properly initialized. Signed-off-by: Jean Delvare Signed-off-by: David S. Miller --- drivers/net/ethernet/seeq/sgiseeq.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/ethernet/seeq/sgiseeq.c b/drivers/net/ethernet/seeq/sgiseeq.c index bb8c8222122b..4d15bf413bdc 100644 --- a/drivers/net/ethernet/seeq/sgiseeq.c +++ b/drivers/net/ethernet/seeq/sgiseeq.c @@ -751,6 +751,7 @@ static int __devinit sgiseeq_probe(struct platform_device *pdev) sp->srings = sr; sp->rx_desc = sp->srings->rxvector; sp->tx_desc = sp->srings->txvector; + spin_lock_init(&sp->tx_lock); /* A couple calculations now, saves many cycles later. */ setup_rx_ring(dev, sp->rx_desc, SEEQ_RX_BUFFERS); -- cgit v1.2.1 From 306c11b28d7bb85a7adda741798a2b6b60dd305a Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Fri, 7 Sep 2012 17:30:32 +0200 Subject: target: go through normal processing for zero-length PSCSI commands Right now, commands with a zero-size payload are skipped completely. This is wrong; such commands should be passed down to the device and processed normally. For physical backends, this ignores completely things such as START STOP UNIT. For virtual backends, we have a hack in place to clear a unit attention state on a zero-size REQUEST SENSE, but we still do not report errors properly on zero-length commands---out-of-bounds 0-block reads and writes, too small parameter list lengths, etc. This patch fixes this for PSCSI. Uses of transport_kmap_data_sg are guarded with a check for non-zero cmd->data_length; for all other commands a zero length is handled properly in pscsi_execute_cmd. The sole exception will be for now REPORT LUNS, which is handled through the normal SPC emulation. Signed-off-by: Paolo Bonzini Signed-off-by: Nicholas Bellinger --- drivers/target/target_core_pscsi.c | 8 ++++---- drivers/target/target_core_transport.c | 4 +++- 2 files changed, 7 insertions(+), 5 deletions(-) diff --git a/drivers/target/target_core_pscsi.c b/drivers/target/target_core_pscsi.c index 5f7151d90344..9d7ce3daa262 100644 --- a/drivers/target/target_core_pscsi.c +++ b/drivers/target/target_core_pscsi.c @@ -688,11 +688,11 @@ static void pscsi_transport_complete(struct se_cmd *cmd, struct scatterlist *sg, * Hack to make sure that Write-Protect modepage is set if R/O mode is * forced. */ + if (!cmd->se_deve || !cmd->data_length) + goto after_mode_sense; + if (((cdb[0] == MODE_SENSE) || (cdb[0] == MODE_SENSE_10)) && (status_byte(result) << 1) == SAM_STAT_GOOD) { - if (!cmd->se_deve) - goto after_mode_sense; - if (cmd->se_deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY) { unsigned char *buf = transport_kmap_data_sg(cmd); @@ -709,7 +709,7 @@ static void pscsi_transport_complete(struct se_cmd *cmd, struct scatterlist *sg, } after_mode_sense: - if (sd->type != TYPE_TAPE) + if (sd->type != TYPE_TAPE || !cmd->data_length) goto after_mode_select; /* diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index 8a29e3fd0195..7ddb0c33f644 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -2300,7 +2300,9 @@ int transport_generic_new_cmd(struct se_cmd *cmd) * into the fabric for data transfers, go ahead and complete it right * away. */ - if (!cmd->data_length) { + if (!cmd->data_length && + (cmd->se_dev->transport->transport_type != TRANSPORT_PLUGIN_PHBA_PDEV || + cmd->t_task_cdb[0] == REPORT_LUNS) { spin_lock_irq(&cmd->t_state_lock); cmd->t_state = TRANSPORT_COMPLETE; cmd->transport_state |= CMD_T_ACTIVE; -- cgit v1.2.1 From 0d7f1299ca5540b9a63ab6e8bf0e89ea963eb6af Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Fri, 7 Sep 2012 17:30:33 +0200 Subject: target: report too-small parameter lists everywhere Several places were not checking that the parameter list length was large enough, and thus accessing invalid memory. Zero-length parameter lists are just a special case of this. Signed-off-by: Paolo Bonzini Signed-off-by: Nicholas Bellinger --- drivers/target/target_core_alua.c | 7 +++++++ drivers/target/target_core_iblock.c | 17 +++++++++++++++-- drivers/target/target_core_pr.c | 8 ++++++++ 3 files changed, 30 insertions(+), 2 deletions(-) diff --git a/drivers/target/target_core_alua.c b/drivers/target/target_core_alua.c index 91799973081a..41641ba54828 100644 --- a/drivers/target/target_core_alua.c +++ b/drivers/target/target_core_alua.c @@ -218,6 +218,13 @@ int target_emulate_set_target_port_groups(struct se_cmd *cmd) cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; return -EINVAL; } + if (cmd->data_length < 4) { + pr_warn("SET TARGET PORT GROUPS parameter list length %u too" + " small\n", cmd->data_length); + cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST; + return -EINVAL; + } + buf = transport_kmap_data_sg(cmd); /* diff --git a/drivers/target/target_core_iblock.c b/drivers/target/target_core_iblock.c index 76db75e836ed..9ba495477fd2 100644 --- a/drivers/target/target_core_iblock.c +++ b/drivers/target/target_core_iblock.c @@ -325,17 +325,30 @@ static int iblock_execute_unmap(struct se_cmd *cmd) struct iblock_dev *ibd = dev->dev_ptr; unsigned char *buf, *ptr = NULL; sector_t lba; - int size = cmd->data_length; + int size; u32 range; int ret = 0; int dl, bd_dl; + if (cmd->data_length < 8) { + pr_warn("UNMAP parameter list length %u too small\n", + cmd->data_length); + cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST; + return -EINVAL; + } + buf = transport_kmap_data_sg(cmd); dl = get_unaligned_be16(&buf[0]); bd_dl = get_unaligned_be16(&buf[2]); - size = min(size - 8, bd_dl); + size = cmd->data_length - 8; + if (bd_dl > size) + pr_warn("UNMAP parameter list length %u too small, ignoring bd_dl %u\n", + cmd->data_length, bd_dl); + else + size = bd_dl; + if (size / 16 > dev->se_sub_dev->se_dev_attrib.max_unmap_block_desc_count) { cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST; ret = -EINVAL; diff --git a/drivers/target/target_core_pr.c b/drivers/target/target_core_pr.c index 1e946502c378..956c84c6b666 100644 --- a/drivers/target/target_core_pr.c +++ b/drivers/target/target_core_pr.c @@ -1540,6 +1540,14 @@ static int core_scsi3_decode_spec_i_port( tidh_new->dest_local_nexus = 1; list_add_tail(&tidh_new->dest_list, &tid_dest_list); + if (cmd->data_length < 28) { + pr_warn("SPC-PR: Received PR OUT parameter list" + " length too small: %u\n", cmd->data_length); + cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST; + ret = -EINVAL; + goto out; + } + buf = transport_kmap_data_sg(cmd); /* * For a PERSISTENT RESERVE OUT specify initiator ports payload, -- cgit v1.2.1 From 9b16b9edb4fd0dc86ee0fbe1f7ede580e26e85f4 Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Fri, 7 Sep 2012 17:30:34 +0200 Subject: target: fail REPORT LUNS with less than 16 bytes of payload SPC says: "The ALLOCATION LENGTH field is defined in 4.3.5.6. The allocation length should be at least 16. Device servers compliant with SPC return CHECK CONDITION status, with the sense key set to ILLEGAL REQUEST, and the additional sense code set to INVALID FIELD IN CDB when the allocation length is less than 16 bytes". Testcase: sg_raw -r8 /dev/sdb a0 00 00 00 00 00 00 00 00 08 00 00 should fail with ILLEGAL REQUEST / INVALID FIELD IN CDB sense does not fail without the patch fails correctly with the patch Signed-off-by: Paolo Bonzini Signed-off-by: Nicholas Bellinger --- drivers/target/target_core_device.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c index cf2c66f3c116..9fc9a6006ca0 100644 --- a/drivers/target/target_core_device.c +++ b/drivers/target/target_core_device.c @@ -669,6 +669,13 @@ int target_report_luns(struct se_cmd *se_cmd) unsigned char *buf; u32 lun_count = 0, offset = 8, i; + if (se_cmd->data_length < 16) { + pr_warn("REPORT LUNS allocation length %u too small\n", + se_cmd->data_length); + se_cmd->scsi_sense_reason = TCM_INVALID_CDB_FIELD; + return -EINVAL; + } + buf = transport_kmap_data_sg(se_cmd); if (!buf) return -ENOMEM; -- cgit v1.2.1 From 3717ef0c63e90686d959158e9728a13a49229be6 Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Fri, 7 Sep 2012 17:30:35 +0200 Subject: target: support zero-size allocation lengths in transport_kmap_data_sg In order to support zero-size allocation lengths, do not assert that we have a scatterlist until after checking cmd->data_length. But once we do this, we can have two cases of transport_kmap_data_sg returning NULL: a zero-size allocation length, or an out-of-memory condition. Report the latter using sense codes, so that the SCSI command that triggered it will fail. Signed-off-by: Paolo Bonzini Signed-off-by: Nicholas Bellinger --- drivers/target/target_core_transport.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index 7ddb0c33f644..4403477882b3 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -2190,7 +2190,6 @@ void *transport_kmap_data_sg(struct se_cmd *cmd) struct page **pages; int i; - BUG_ON(!sg); /* * We need to take into account a possible offset here for fabrics like * tcm_loop who may be using a contig buffer from the SCSI midlayer for @@ -2198,13 +2197,17 @@ void *transport_kmap_data_sg(struct se_cmd *cmd) */ if (!cmd->t_data_nents) return NULL; - else if (cmd->t_data_nents == 1) + + BUG_ON(!sg); + if (cmd->t_data_nents == 1) return kmap(sg_page(sg)) + sg->offset; /* >1 page. use vmap */ pages = kmalloc(sizeof(*pages) * cmd->t_data_nents, GFP_KERNEL); - if (!pages) + if (!pages) { + cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; return NULL; + } /* convert sg[] to pages[] */ for_each_sg(cmd->t_data_sg, sg, cmd->t_data_nents, i) { @@ -2213,8 +2216,10 @@ void *transport_kmap_data_sg(struct se_cmd *cmd) cmd->t_data_vmap = vmap(pages, cmd->t_data_nents, VM_MAP, PAGE_KERNEL); kfree(pages); - if (!cmd->t_data_vmap) + if (!cmd->t_data_vmap) { + cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; return NULL; + } return cmd->t_data_vmap + cmd->t_data_sg[0].offset; } -- cgit v1.2.1 From 32a8811ff164f882712c17946e58e52444f464a7 Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Fri, 7 Sep 2012 17:30:36 +0200 Subject: target: support zero allocation length in REQUEST SENSE Similar to INQUIRY and MODE SENSE, construct the sense data in a buffer and later copy it to the scatterlist. Do not do anything, but still clear a pending unit attention condition, if the allocation length is zero. However, SPC tells us that "If a REQUEST SENSE command is terminated with CHECK CONDITION status [and] the REQUEST SENSE command was received on an I_T nexus with a pending unit attention condition (i.e., before the device server reports CHECK CONDITION status), then the device server shall not clear the pending unit attention condition." Do the transport_kmap_data_sg early to detect this case. It also tells us "Device servers shall not adjust the additional sense length to reflect truncation if the allocation length is less than the sense data available", so do not do that! Note that the err variable is write-only. Signed-off-by: Paolo Bonzini Signed-off-by: Nicholas Bellinger --- drivers/target/target_core_spc.c | 35 ++++++++++++++++++----------------- include/target/target_core_base.h | 1 + 2 files changed, 19 insertions(+), 17 deletions(-) diff --git a/drivers/target/target_core_spc.c b/drivers/target/target_core_spc.c index 4c861de538c9..388a922c8f6d 100644 --- a/drivers/target/target_core_spc.c +++ b/drivers/target/target_core_spc.c @@ -877,9 +877,11 @@ static int spc_emulate_modesense(struct se_cmd *cmd) static int spc_emulate_request_sense(struct se_cmd *cmd) { unsigned char *cdb = cmd->t_task_cdb; - unsigned char *buf; + unsigned char *rbuf; u8 ua_asc = 0, ua_ascq = 0; - int err = 0; + unsigned char buf[SE_SENSE_BUF]; + + memset(buf, 0, SE_SENSE_BUF); if (cdb[1] & 0x01) { pr_err("REQUEST_SENSE description emulation not" @@ -888,20 +890,21 @@ static int spc_emulate_request_sense(struct se_cmd *cmd) return -ENOSYS; } - buf = transport_kmap_data_sg(cmd); - - if (!core_scsi3_ua_clear_for_request_sense(cmd, &ua_asc, &ua_ascq)) { + rbuf = transport_kmap_data_sg(cmd); + if (cmd->scsi_sense_reason != 0) { + /* + * Out of memory. We will fail with CHECK CONDITION, so + * we must not clear the unit attention condition. + */ + target_complete_cmd(cmd, CHECK_CONDITION); + return 0; + } else if (!core_scsi3_ua_clear_for_request_sense(cmd, &ua_asc, &ua_ascq)) { /* * CURRENT ERROR, UNIT ATTENTION */ buf[0] = 0x70; buf[SPC_SENSE_KEY_OFFSET] = UNIT_ATTENTION; - if (cmd->data_length < 18) { - buf[7] = 0x00; - err = -EINVAL; - goto end; - } /* * The Additional Sense Code (ASC) from the UNIT ATTENTION */ @@ -915,11 +918,6 @@ static int spc_emulate_request_sense(struct se_cmd *cmd) buf[0] = 0x70; buf[SPC_SENSE_KEY_OFFSET] = NO_SENSE; - if (cmd->data_length < 18) { - buf[7] = 0x00; - err = -EINVAL; - goto end; - } /* * NO ADDITIONAL SENSE INFORMATION */ @@ -927,8 +925,11 @@ static int spc_emulate_request_sense(struct se_cmd *cmd) buf[7] = 0x0A; } -end: - transport_kunmap_data_sg(cmd); + if (rbuf) { + memcpy(rbuf, buf, min_t(u32, sizeof(buf), cmd->data_length)); + transport_kunmap_data_sg(cmd); + } + target_complete_cmd(cmd, GOOD); return 0; } diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h index 015cea01ae39..5be89373ceac 100644 --- a/include/target/target_core_base.h +++ b/include/target/target_core_base.h @@ -121,6 +121,7 @@ #define SE_INQUIRY_BUF 512 #define SE_MODE_PAGE_BUF 512 +#define SE_SENSE_BUF 96 /* struct se_hba->hba_flags */ enum hba_flags_table { -- cgit v1.2.1 From 6abbdf38363f064c8a50150c9b709682764483b3 Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Fri, 7 Sep 2012 17:30:37 +0200 Subject: target: go through normal processing for zero-length REQUEST_SENSE Now that spc_emulate_request_sense has been taught to process zero-length REQUEST SENSE correctly, drop the special handling of unit attention conditions from transport_generic_new_cmd. However, for now REQUEST SENSE will be the only command that goes through emulation for zero lengths. (nab: Fix up zero-length check in transport_generic_new_cmd) Signed-off-by: Paolo Bonzini Signed-off-by: Nicholas Bellinger --- drivers/target/target_core_transport.c | 11 ++--------- 1 file changed, 2 insertions(+), 9 deletions(-) diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index 4403477882b3..269f54488397 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -2306,20 +2306,13 @@ int transport_generic_new_cmd(struct se_cmd *cmd) * away. */ if (!cmd->data_length && - (cmd->se_dev->transport->transport_type != TRANSPORT_PLUGIN_PHBA_PDEV || - cmd->t_task_cdb[0] == REPORT_LUNS) { + cmd->t_task_cdb[0] != REQUEST_SENSE && + cmd->se_dev->transport->transport_type != TRANSPORT_PLUGIN_PHBA_PDEV) { spin_lock_irq(&cmd->t_state_lock); cmd->t_state = TRANSPORT_COMPLETE; cmd->transport_state |= CMD_T_ACTIVE; spin_unlock_irq(&cmd->t_state_lock); - if (cmd->t_task_cdb[0] == REQUEST_SENSE) { - u8 ua_asc = 0, ua_ascq = 0; - - core_scsi3_ua_clear_for_request_sense(cmd, - &ua_asc, &ua_ascq); - } - INIT_WORK(&cmd->work, target_complete_ok_work); queue_work(target_completion_wq, &cmd->work); return 0; -- cgit v1.2.1 From b4ad51559c2f12c34a0340b26ffb02e4b285bc51 Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Tue, 4 Sep 2012 20:04:35 +0100 Subject: ARM: 7512/1: Fix XIP build due to PHYS_OFFSET definition moving During the p2v changes, the PHYS_OFFSET #define moved into a !__ASSEMBLY__ section. This causes a XIP build to fail with arch/arm/kernel/head.o: In function 'stext': arch/arm/kernel/head.S:146: undefined reference to 'PHYS_OFFSET' Momentarily leave the #ifndef __ASSEMBLY__ section so we can define PHYS_OFFSET for all compilation units. Signed-off-by: Stephen Boyd Signed-off-by: Russell King --- arch/arm/include/asm/memory.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h index e965f1b560f1..5f6ddcc56452 100644 --- a/arch/arm/include/asm/memory.h +++ b/arch/arm/include/asm/memory.h @@ -187,6 +187,7 @@ static inline unsigned long __phys_to_virt(unsigned long x) #define __phys_to_virt(x) ((x) - PHYS_OFFSET + PAGE_OFFSET) #endif #endif +#endif /* __ASSEMBLY__ */ #ifndef PHYS_OFFSET #ifdef PLAT_PHYS_OFFSET @@ -196,6 +197,8 @@ static inline unsigned long __phys_to_virt(unsigned long x) #endif #endif +#ifndef __ASSEMBLY__ + /* * PFNs are used to describe any physical page; this means * PFN 0 == physical address 0. -- cgit v1.2.1 From 70b0476a2394de4f4e32e0b67288d80ff71ca963 Mon Sep 17 00:00:00 2001 From: David Brown Date: Tue, 4 Sep 2012 21:36:37 +0100 Subject: ARM: 7513/1: Make sure dtc is built before running it 'make dtbs' in a clean tree will try running the dtc before actually building it. Make these rules depend upon the scripts to build it. Cc: Signed-off-by: David Brown Signed-off-by: Russell King --- arch/arm/Makefile | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm/Makefile b/arch/arm/Makefile index 30eae87ead6d..a051dfbdd7db 100644 --- a/arch/arm/Makefile +++ b/arch/arm/Makefile @@ -284,10 +284,10 @@ zImage Image xipImage bootpImage uImage: vmlinux zinstall uinstall install: vmlinux $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@ -%.dtb: +%.dtb: scripts $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@ -dtbs: +dtbs: scripts $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@ # We use MRPROPER_FILES and CLEAN_FILES now -- cgit v1.2.1 From 62194bdab89b30f451d210247d09e1c146e6d0ad Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Thu, 6 Sep 2012 21:24:32 +0100 Subject: ARM: 7521/1: Fix semihosting Kconfig text It seems we were missing some text in the title for the semihosting DEBUG_LL option. Add in the "/O" and fix up some minor typos in the help text. Signed-off-by: Stephen Boyd Acked-by: Nicolas Pitre Signed-off-by: Russell King --- arch/arm/Kconfig.debug | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug index f15f82bf3a50..e968a52e4881 100644 --- a/arch/arm/Kconfig.debug +++ b/arch/arm/Kconfig.debug @@ -356,15 +356,15 @@ choice is nothing connected to read from the DCC. config DEBUG_SEMIHOSTING - bool "Kernel low-level debug output via semihosting I" + bool "Kernel low-level debug output via semihosting I/O" help Semihosting enables code running on an ARM target to use the I/O facilities on a host debugger/emulator through a - simple SVC calls. The host debugger or emulator must have + simple SVC call. The host debugger or emulator must have semihosting enabled for the special svc call to be trapped otherwise the kernel will crash. - This is known to work with OpenOCD, as wellas + This is known to work with OpenOCD, as well as ARM's Fast Models, or any other controlling environment that implements semihosting. -- cgit v1.2.1 From 2b2040af0b64cd93e5d4df2494c4486cf604090d Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Fri, 7 Sep 2012 18:21:44 +0100 Subject: ARM: 7526/1: traps: send SIGILL if get_user fails on undef handling path get_user may fail to load from the provided __user address due to an unhandled fault generated by the access. In the case of the undefined instruction trap, this results in failure to load the faulting instruction, in which case we should send SIGILL to the task rather than continue with potentially uninitialised data. Signed-off-by: Will Deacon Cc: stable@vger.kernel.org Signed-off-by: Russell King --- arch/arm/kernel/traps.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c index f7945218b8c6..b0179b89a04c 100644 --- a/arch/arm/kernel/traps.c +++ b/arch/arm/kernel/traps.c @@ -420,20 +420,23 @@ asmlinkage void __exception do_undefinstr(struct pt_regs *regs) #endif instr = *(u32 *) pc; } else if (thumb_mode(regs)) { - get_user(instr, (u16 __user *)pc); + if (get_user(instr, (u16 __user *)pc)) + goto die_sig; if (is_wide_instruction(instr)) { unsigned int instr2; - get_user(instr2, (u16 __user *)pc+1); + if (get_user(instr2, (u16 __user *)pc+1)) + goto die_sig; instr <<= 16; instr |= instr2; } - } else { - get_user(instr, (u32 __user *)pc); + } else if (get_user(instr, (u32 __user *)pc)) { + goto die_sig; } if (call_undef_hook(regs, instr) == 0) return; +die_sig: #ifdef CONFIG_DEBUG_USER if (user_debug & UDBG_UNDEFINED) { printk(KERN_INFO "%s (%d): undefined instruction: pc=%p\n", -- cgit v1.2.1 From 99d0b1db6ccd0c0e554398e8a579ff3dd4d119ee Mon Sep 17 00:00:00 2001 From: Alexander Shishkin Date: Fri, 31 Aug 2012 15:50:55 +0300 Subject: drm/i915: initialize dpio_lock spin lock This thing is killing lockdep. Signed-off-by: Alexander Shishkin [Jani: move the init next to the other spin lock inits] Signed-off-by: Jani Nikula Acked-by: Ben Widawsky Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/i915_dma.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index 9cf7dfe022b9..914c0dfabe60 100644 --- a/drivers/gpu/drm/i915/i915_dma.c +++ b/drivers/gpu/drm/i915/i915_dma.c @@ -1587,6 +1587,7 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags) spin_lock_init(&dev_priv->irq_lock); spin_lock_init(&dev_priv->error_lock); spin_lock_init(&dev_priv->rps_lock); + spin_lock_init(&dev_priv->dpio_lock); if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev)) dev_priv->num_pipe = 3; -- cgit v1.2.1 From 6862234238e84648c305526af2edd98badcad1e0 Mon Sep 17 00:00:00 2001 From: Chema Gonzalez Date: Fri, 7 Sep 2012 13:40:50 +0000 Subject: net: small bug on rxhash calculation In the current rxhash calculation function, while the sorting of the ports/addrs is coherent (you get the same rxhash for packets sharing the same 4-tuple, in both directions), ports and addrs are sorted independently. This implies packets from a connection between the same addresses but crossed ports hash to the same rxhash. For example, traffic between A=S:l and B=L:s is hashed (in both directions) from {L, S, {s, l}}. The same rxhash is obtained for packets between C=S:s and D=L:l. This patch ensures that you either swap both addrs and ports, or you swap none. Traffic between A and B, and traffic between C and D, get their rxhash from different sources ({L, S, {l, s}} for A<->B, and {L, S, {s, l}} for C<->D) The patch is co-written with Eric Dumazet Signed-off-by: Chema Gonzalez Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- net/core/dev.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/net/core/dev.c b/net/core/dev.c index 83988362805e..d7fe32c946c1 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -2647,15 +2647,16 @@ void __skb_get_rxhash(struct sk_buff *skb) if (!skb_flow_dissect(skb, &keys)) return; - if (keys.ports) { - if ((__force u16)keys.port16[1] < (__force u16)keys.port16[0]) - swap(keys.port16[0], keys.port16[1]); + if (keys.ports) skb->l4_rxhash = 1; - } /* get a consistent hash (same value on both flow directions) */ - if ((__force u32)keys.dst < (__force u32)keys.src) + if (((__force u32)keys.dst < (__force u32)keys.src) || + (((__force u32)keys.dst == (__force u32)keys.src) && + ((__force u16)keys.port16[1] < (__force u16)keys.port16[0]))) { swap(keys.dst, keys.src); + swap(keys.port16[0], keys.port16[1]); + } hash = jhash_3words((__force u32)keys.dst, (__force u32)keys.src, -- cgit v1.2.1 From 4f97704555672f9ab48ca623561e96a9430bec9a Mon Sep 17 00:00:00 2001 From: "Ren, Yongjie" Date: Fri, 7 Sep 2012 07:36:59 +0000 Subject: KVM: x86: Check INVPCID feature bit in EBX of leaf 7 Checks and operations on the INVPCID feature bit should use EBX of CPUID leaf 7 instead of ECX. Signed-off-by: Junjie Mao Signed-off-by: Yongjie Ren Signed-off-by: Avi Kivity --- arch/x86/kvm/vmx.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index c00f03de1b79..002b4a566e2d 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -6575,7 +6575,7 @@ static void vmx_cpuid_update(struct kvm_vcpu *vcpu) /* Exposing INVPCID only when PCID is exposed */ best = kvm_find_cpuid_entry(vcpu, 0x7, 0); if (vmx_invpcid_supported() && - best && (best->ecx & bit(X86_FEATURE_INVPCID)) && + best && (best->ebx & bit(X86_FEATURE_INVPCID)) && guest_cpuid_has_pcid(vcpu)) { exec_control |= SECONDARY_EXEC_ENABLE_INVPCID; vmcs_write32(SECONDARY_VM_EXEC_CONTROL, @@ -6585,7 +6585,7 @@ static void vmx_cpuid_update(struct kvm_vcpu *vcpu) vmcs_write32(SECONDARY_VM_EXEC_CONTROL, exec_control); if (best) - best->ecx &= ~bit(X86_FEATURE_INVPCID); + best->ebx &= ~bit(X86_FEATURE_INVPCID); } } -- cgit v1.2.1 From 8404663f81d212918ff85f493649a7991209fa04 Mon Sep 17 00:00:00 2001 From: Russell King Date: Fri, 7 Sep 2012 18:22:28 +0100 Subject: ARM: 7527/1: uaccess: explicitly check __user pointer when !CPU_USE_DOMAINS The {get,put}_user macros don't perform range checking on the provided __user address when !CPU_HAS_DOMAINS. This patch reworks the out-of-line assembly accessors to check the user address against a specified limit, returning -EFAULT if is is out of range. [will: changed get_user register allocation to match put_user] [rmk: fixed building on older ARM architectures] Reported-by: Catalin Marinas Signed-off-by: Will Deacon Cc: stable@vger.kernel.org Signed-off-by: Russell King --- arch/arm/include/asm/assembler.h | 8 ++++++++ arch/arm/include/asm/uaccess.h | 40 +++++++++++++++++++++++++++------------- arch/arm/lib/getuser.S | 23 +++++++++++++++-------- arch/arm/lib/putuser.S | 6 ++++++ 4 files changed, 56 insertions(+), 21 deletions(-) diff --git a/arch/arm/include/asm/assembler.h b/arch/arm/include/asm/assembler.h index 03fb93621d0d..5c8b3bf4d825 100644 --- a/arch/arm/include/asm/assembler.h +++ b/arch/arm/include/asm/assembler.h @@ -320,4 +320,12 @@ .size \name , . - \name .endm + .macro check_uaccess, addr:req, size:req, limit:req, tmp:req, bad:req +#ifndef CONFIG_CPU_USE_DOMAINS + adds \tmp, \addr, #\size - 1 + sbcccs \tmp, \tmp, \limit + bcs \bad +#endif + .endm + #endif /* __ASM_ASSEMBLER_H__ */ diff --git a/arch/arm/include/asm/uaccess.h b/arch/arm/include/asm/uaccess.h index 479a6352e0b5..6f83ad6e4d3d 100644 --- a/arch/arm/include/asm/uaccess.h +++ b/arch/arm/include/asm/uaccess.h @@ -101,28 +101,39 @@ extern int __get_user_1(void *); extern int __get_user_2(void *); extern int __get_user_4(void *); -#define __get_user_x(__r2,__p,__e,__s,__i...) \ +#define __GUP_CLOBBER_1 "lr", "cc" +#ifdef CONFIG_CPU_USE_DOMAINS +#define __GUP_CLOBBER_2 "ip", "lr", "cc" +#else +#define __GUP_CLOBBER_2 "lr", "cc" +#endif +#define __GUP_CLOBBER_4 "lr", "cc" + +#define __get_user_x(__r2,__p,__e,__l,__s) \ __asm__ __volatile__ ( \ __asmeq("%0", "r0") __asmeq("%1", "r2") \ + __asmeq("%3", "r1") \ "bl __get_user_" #__s \ : "=&r" (__e), "=r" (__r2) \ - : "0" (__p) \ - : __i, "cc") + : "0" (__p), "r" (__l) \ + : __GUP_CLOBBER_##__s) #define get_user(x,p) \ ({ \ + unsigned long __limit = current_thread_info()->addr_limit - 1; \ register const typeof(*(p)) __user *__p asm("r0") = (p);\ register unsigned long __r2 asm("r2"); \ + register unsigned long __l asm("r1") = __limit; \ register int __e asm("r0"); \ switch (sizeof(*(__p))) { \ case 1: \ - __get_user_x(__r2, __p, __e, 1, "lr"); \ - break; \ + __get_user_x(__r2, __p, __e, __l, 1); \ + break; \ case 2: \ - __get_user_x(__r2, __p, __e, 2, "r3", "lr"); \ + __get_user_x(__r2, __p, __e, __l, 2); \ break; \ case 4: \ - __get_user_x(__r2, __p, __e, 4, "lr"); \ + __get_user_x(__r2, __p, __e, __l, 4); \ break; \ default: __e = __get_user_bad(); break; \ } \ @@ -135,31 +146,34 @@ extern int __put_user_2(void *, unsigned int); extern int __put_user_4(void *, unsigned int); extern int __put_user_8(void *, unsigned long long); -#define __put_user_x(__r2,__p,__e,__s) \ +#define __put_user_x(__r2,__p,__e,__l,__s) \ __asm__ __volatile__ ( \ __asmeq("%0", "r0") __asmeq("%2", "r2") \ + __asmeq("%3", "r1") \ "bl __put_user_" #__s \ : "=&r" (__e) \ - : "0" (__p), "r" (__r2) \ + : "0" (__p), "r" (__r2), "r" (__l) \ : "ip", "lr", "cc") #define put_user(x,p) \ ({ \ + unsigned long __limit = current_thread_info()->addr_limit - 1; \ register const typeof(*(p)) __r2 asm("r2") = (x); \ register const typeof(*(p)) __user *__p asm("r0") = (p);\ + register unsigned long __l asm("r1") = __limit; \ register int __e asm("r0"); \ switch (sizeof(*(__p))) { \ case 1: \ - __put_user_x(__r2, __p, __e, 1); \ + __put_user_x(__r2, __p, __e, __l, 1); \ break; \ case 2: \ - __put_user_x(__r2, __p, __e, 2); \ + __put_user_x(__r2, __p, __e, __l, 2); \ break; \ case 4: \ - __put_user_x(__r2, __p, __e, 4); \ + __put_user_x(__r2, __p, __e, __l, 4); \ break; \ case 8: \ - __put_user_x(__r2, __p, __e, 8); \ + __put_user_x(__r2, __p, __e, __l, 8); \ break; \ default: __e = __put_user_bad(); break; \ } \ diff --git a/arch/arm/lib/getuser.S b/arch/arm/lib/getuser.S index 11093a7c3e32..9b06bb41fca6 100644 --- a/arch/arm/lib/getuser.S +++ b/arch/arm/lib/getuser.S @@ -16,8 +16,9 @@ * __get_user_X * * Inputs: r0 contains the address + * r1 contains the address limit, which must be preserved * Outputs: r0 is the error code - * r2, r3 contains the zero-extended value + * r2 contains the zero-extended value * lr corrupted * * No other registers must be altered. (see @@ -27,33 +28,39 @@ * Note also that it is intended that __get_user_bad is not global. */ #include +#include #include #include ENTRY(__get_user_1) + check_uaccess r0, 1, r1, r2, __get_user_bad 1: TUSER(ldrb) r2, [r0] mov r0, #0 mov pc, lr ENDPROC(__get_user_1) ENTRY(__get_user_2) -#ifdef CONFIG_THUMB2_KERNEL -2: TUSER(ldrb) r2, [r0] -3: TUSER(ldrb) r3, [r0, #1] + check_uaccess r0, 2, r1, r2, __get_user_bad +#ifdef CONFIG_CPU_USE_DOMAINS +rb .req ip +2: ldrbt r2, [r0], #1 +3: ldrbt rb, [r0], #0 #else -2: TUSER(ldrb) r2, [r0], #1 -3: TUSER(ldrb) r3, [r0] +rb .req r0 +2: ldrb r2, [r0] +3: ldrb rb, [r0, #1] #endif #ifndef __ARMEB__ - orr r2, r2, r3, lsl #8 + orr r2, r2, rb, lsl #8 #else - orr r2, r3, r2, lsl #8 + orr r2, rb, r2, lsl #8 #endif mov r0, #0 mov pc, lr ENDPROC(__get_user_2) ENTRY(__get_user_4) + check_uaccess r0, 4, r1, r2, __get_user_bad 4: TUSER(ldr) r2, [r0] mov r0, #0 mov pc, lr diff --git a/arch/arm/lib/putuser.S b/arch/arm/lib/putuser.S index 7db25990c589..3d73dcb959b0 100644 --- a/arch/arm/lib/putuser.S +++ b/arch/arm/lib/putuser.S @@ -16,6 +16,7 @@ * __put_user_X * * Inputs: r0 contains the address + * r1 contains the address limit, which must be preserved * r2, r3 contains the value * Outputs: r0 is the error code * lr corrupted @@ -27,16 +28,19 @@ * Note also that it is intended that __put_user_bad is not global. */ #include +#include #include #include ENTRY(__put_user_1) + check_uaccess r0, 1, r1, ip, __put_user_bad 1: TUSER(strb) r2, [r0] mov r0, #0 mov pc, lr ENDPROC(__put_user_1) ENTRY(__put_user_2) + check_uaccess r0, 2, r1, ip, __put_user_bad mov ip, r2, lsr #8 #ifdef CONFIG_THUMB2_KERNEL #ifndef __ARMEB__ @@ -60,12 +64,14 @@ ENTRY(__put_user_2) ENDPROC(__put_user_2) ENTRY(__put_user_4) + check_uaccess r0, 4, r1, ip, __put_user_bad 4: TUSER(str) r2, [r0] mov r0, #0 mov pc, lr ENDPROC(__put_user_4) ENTRY(__put_user_8) + check_uaccess r0, 8, r1, ip, __put_user_bad #ifdef CONFIG_THUMB2_KERNEL 5: TUSER(str) r2, [r0] 6: TUSER(str) r3, [r0, #4] -- cgit v1.2.1 From ad72907acd2943304c292ae36960bb66e6dc23c9 Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Fri, 7 Sep 2012 18:24:10 +0100 Subject: ARM: 7528/1: uaccess: annotate [__]{get,put}_user functions with might_fault() The user access functions may generate a fault, resulting in invocation of a handler that may sleep. This patch annotates the accessors with might_fault() so that we print a warning if they are invoked from atomic context and help lockdep keep track of mmap_sem. Signed-off-by: Will Deacon Signed-off-by: Russell King --- arch/arm/include/asm/uaccess.h | 18 ++++++++++++++++-- 1 file changed, 16 insertions(+), 2 deletions(-) diff --git a/arch/arm/include/asm/uaccess.h b/arch/arm/include/asm/uaccess.h index 6f83ad6e4d3d..77bd79f2ffdb 100644 --- a/arch/arm/include/asm/uaccess.h +++ b/arch/arm/include/asm/uaccess.h @@ -118,7 +118,7 @@ extern int __get_user_4(void *); : "0" (__p), "r" (__l) \ : __GUP_CLOBBER_##__s) -#define get_user(x,p) \ +#define __get_user_check(x,p) \ ({ \ unsigned long __limit = current_thread_info()->addr_limit - 1; \ register const typeof(*(p)) __user *__p asm("r0") = (p);\ @@ -141,6 +141,12 @@ extern int __get_user_4(void *); __e; \ }) +#define get_user(x,p) \ + ({ \ + might_fault(); \ + __get_user_check(x,p); \ + }) + extern int __put_user_1(void *, unsigned int); extern int __put_user_2(void *, unsigned int); extern int __put_user_4(void *, unsigned int); @@ -155,7 +161,7 @@ extern int __put_user_8(void *, unsigned long long); : "0" (__p), "r" (__r2), "r" (__l) \ : "ip", "lr", "cc") -#define put_user(x,p) \ +#define __put_user_check(x,p) \ ({ \ unsigned long __limit = current_thread_info()->addr_limit - 1; \ register const typeof(*(p)) __r2 asm("r2") = (x); \ @@ -180,6 +186,12 @@ extern int __put_user_8(void *, unsigned long long); __e; \ }) +#define put_user(x,p) \ + ({ \ + might_fault(); \ + __put_user_check(x,p); \ + }) + #else /* CONFIG_MMU */ /* @@ -233,6 +245,7 @@ do { \ unsigned long __gu_addr = (unsigned long)(ptr); \ unsigned long __gu_val; \ __chk_user_ptr(ptr); \ + might_fault(); \ switch (sizeof(*(ptr))) { \ case 1: __get_user_asm_byte(__gu_val,__gu_addr,err); break; \ case 2: __get_user_asm_half(__gu_val,__gu_addr,err); break; \ @@ -314,6 +327,7 @@ do { \ unsigned long __pu_addr = (unsigned long)(ptr); \ __typeof__(*(ptr)) __pu_val = (x); \ __chk_user_ptr(ptr); \ + might_fault(); \ switch (sizeof(*(ptr))) { \ case 1: __put_user_asm_byte(__pu_val,__pu_addr,err); break; \ case 2: __put_user_asm_half(__pu_val,__pu_addr,err); break; \ -- cgit v1.2.1 From beafa0de3d3e0d0ece7638cded879815f359f1cb Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Fri, 7 Sep 2012 18:24:53 +0100 Subject: ARM: 7529/1: delay: set loops_per_jiffy when moving to timer-based loop The delay functions may be called by some platforms between switching to the timer-based delay loop but before calibration. In this case, the initial loops_per_jiffy may not be suitable for the timer (although a compromise may be achievable) and delay times may be considered too inaccurate. This patch updates loops_per_jiffy when switching to the timer-based delay loop so that delays are consistent prior to calibration. Signed-off-by: Will Deacon Signed-off-by: Russell King --- arch/arm/lib/delay.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/lib/delay.c b/arch/arm/lib/delay.c index d6dacc69254e..395d5fbb8fa2 100644 --- a/arch/arm/lib/delay.c +++ b/arch/arm/lib/delay.c @@ -59,6 +59,7 @@ void __init init_current_timer_delay(unsigned long freq) { pr_info("Switching to timer-based delay loop\n"); lpj_fine = freq / HZ; + loops_per_jiffy = lpj_fine; arm_delay_ops.delay = __timer_delay; arm_delay_ops.const_udelay = __timer_const_udelay; arm_delay_ops.udelay = __timer_udelay; -- cgit v1.2.1 From 64f509ce71b08d037998e93dd51180c19b2f464c Mon Sep 17 00:00:00 2001 From: Jozsef Kadlecsik Date: Fri, 31 Aug 2012 09:55:53 +0000 Subject: netfilter: Mark SYN/ACK packets as invalid from original direction Clients should not send such packets. By accepting them, we open up a hole by wich ephemeral ports can be discovered in an off-path attack. See: "Reflection scan: an Off-Path Attack on TCP" by Jan Wrobel, http://arxiv.org/abs/1201.2074 Signed-off-by: Jozsef Kadlecsik Signed-off-by: Pablo Neira Ayuso --- net/netfilter/nf_conntrack_proto_tcp.c | 19 ++++++++----------- 1 file changed, 8 insertions(+), 11 deletions(-) diff --git a/net/netfilter/nf_conntrack_proto_tcp.c b/net/netfilter/nf_conntrack_proto_tcp.c index a5ac11ebef33..aba98f942979 100644 --- a/net/netfilter/nf_conntrack_proto_tcp.c +++ b/net/netfilter/nf_conntrack_proto_tcp.c @@ -158,21 +158,18 @@ static const u8 tcp_conntracks[2][6][TCP_CONNTRACK_MAX] = { * sCL -> sSS */ /* sNO, sSS, sSR, sES, sFW, sCW, sLA, sTW, sCL, sS2 */ -/*synack*/ { sIV, sIV, sIG, sIG, sIG, sIG, sIG, sIG, sIG, sSR }, +/*synack*/ { sIV, sIV, sSR, sIV, sIV, sIV, sIV, sIV, sIV, sSR }, /* * sNO -> sIV Too late and no reason to do anything * sSS -> sIV Client can't send SYN and then SYN/ACK * sS2 -> sSR SYN/ACK sent to SYN2 in simultaneous open - * sSR -> sIG - * sES -> sIG Error: SYNs in window outside the SYN_SENT state - * are errors. Receiver will reply with RST - * and close the connection. - * Or we are not in sync and hold a dead connection. - * sFW -> sIG - * sCW -> sIG - * sLA -> sIG - * sTW -> sIG - * sCL -> sIG + * sSR -> sSR Late retransmitted SYN/ACK in simultaneous open + * sES -> sIV Invalid SYN/ACK packets sent by the client + * sFW -> sIV + * sCW -> sIV + * sLA -> sIV + * sTW -> sIV + * sCL -> sIV */ /* sNO, sSS, sSR, sES, sFW, sCW, sLA, sTW, sCL, sS2 */ /*fin*/ { sIV, sIV, sFW, sFW, sLA, sLA, sLA, sTW, sCL, sIV }, -- cgit v1.2.1 From 4a70bbfaef0361d27272629d1a250a937edcafe4 Mon Sep 17 00:00:00 2001 From: Jozsef Kadlecsik Date: Fri, 31 Aug 2012 09:55:54 +0000 Subject: netfilter: Validate the sequence number of dataless ACK packets as well We spare nothing by not validating the sequence number of dataless ACK packets and enabling it makes harder off-path attacks. See: "Reflection scan: an Off-Path Attack on TCP" by Jan Wrobel, http://arxiv.org/abs/1201.2074 Signed-off-by: Jozsef Kadlecsik Signed-off-by: Pablo Neira Ayuso --- net/netfilter/nf_conntrack_proto_tcp.c | 10 ++-------- 1 file changed, 2 insertions(+), 8 deletions(-) diff --git a/net/netfilter/nf_conntrack_proto_tcp.c b/net/netfilter/nf_conntrack_proto_tcp.c index aba98f942979..e046b3756aab 100644 --- a/net/netfilter/nf_conntrack_proto_tcp.c +++ b/net/netfilter/nf_conntrack_proto_tcp.c @@ -630,15 +630,9 @@ static bool tcp_in_window(const struct nf_conn *ct, ack = sack = receiver->td_end; } - if (seq == end - && (!tcph->rst - || (seq == 0 && state->state == TCP_CONNTRACK_SYN_SENT))) + if (tcph->rst && seq == 0 && state->state == TCP_CONNTRACK_SYN_SENT) /* - * Packets contains no data: we assume it is valid - * and check the ack value only. - * However RST segments are always validated by their - * SEQ number, except when seq == 0 (reset sent answering - * SYN. + * RST sent answering SYN. */ seq = end = sender->td_end; -- cgit v1.2.1 From 4a8f1ddde942e232387e6129ce4f4c412e43802f Mon Sep 17 00:00:00 2001 From: James Ralston Date: Mon, 10 Sep 2012 10:14:02 +0200 Subject: i2c-i801: Add Device IDs for Intel Lynx Point-LP PCH Add the SMBus Device IDs for the Intel Lynx Point-LP PCH. Signed-off-by: James Ralston Signed-off-by: Jean Delvare --- Documentation/i2c/busses/i2c-i801 | 1 + drivers/i2c/busses/Kconfig | 1 + drivers/i2c/busses/i2c-i801.c | 3 +++ 3 files changed, 5 insertions(+) diff --git a/Documentation/i2c/busses/i2c-i801 b/Documentation/i2c/busses/i2c-i801 index 615142da4ef6..157416e78cc4 100644 --- a/Documentation/i2c/busses/i2c-i801 +++ b/Documentation/i2c/busses/i2c-i801 @@ -21,6 +21,7 @@ Supported adapters: * Intel DH89xxCC (PCH) * Intel Panther Point (PCH) * Intel Lynx Point (PCH) + * Intel Lynx Point-LP (PCH) Datasheets: Publicly available at the Intel website On Intel Patsburg and later chipsets, both the normal host SMBus controller diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig index b4aaa1bd6728..af8bc83fd857 100644 --- a/drivers/i2c/busses/Kconfig +++ b/drivers/i2c/busses/Kconfig @@ -104,6 +104,7 @@ config I2C_I801 DH89xxCC (PCH) Panther Point (PCH) Lynx Point (PCH) + Lynx Point-LP (PCH) This driver can also be built as a module. If so, the module will be called i2c-i801. diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c index 898dcf9c7ade..33e9b0c09af2 100644 --- a/drivers/i2c/busses/i2c-i801.c +++ b/drivers/i2c/busses/i2c-i801.c @@ -52,6 +52,7 @@ DH89xxCC (PCH) 0x2330 32 hard yes yes yes Panther Point (PCH) 0x1e22 32 hard yes yes yes Lynx Point (PCH) 0x8c22 32 hard yes yes yes + Lynx Point-LP (PCH) 0x9c22 32 hard yes yes yes Features supported by this driver: Software PEC no @@ -155,6 +156,7 @@ #define PCI_DEVICE_ID_INTEL_DH89XXCC_SMBUS 0x2330 #define PCI_DEVICE_ID_INTEL_5_3400_SERIES_SMBUS 0x3b30 #define PCI_DEVICE_ID_INTEL_LYNXPOINT_SMBUS 0x8c22 +#define PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_SMBUS 0x9c22 struct i801_priv { struct i2c_adapter adapter; @@ -771,6 +773,7 @@ static DEFINE_PCI_DEVICE_TABLE(i801_ids) = { { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_DH89XXCC_SMBUS) }, { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PANTHERPOINT_SMBUS) }, { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_LYNXPOINT_SMBUS) }, + { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_SMBUS) }, { 0, } }; -- cgit v1.2.1 From e68bb91baa0bb9817567bd45d560919e8e26373b Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Mon, 10 Sep 2012 10:14:02 +0200 Subject: i2c-designware: Fix build error if CONFIG_I2C_DESIGNWARE_PLATFORM=y && CONFIG_I2C_DESIGNWARE_PCI=y This patch adds config I2C_DESIGNWARE_CORE in Kconfig, and let I2C_DESIGNWARE_PLATFORM and I2C_DESIGNWARE_PCI select I2C_DESIGNWARE_CORE. Because both I2C_DESIGNWARE_PLATFORM and I2C_DESIGNWARE_PCI can be built as built-in or module, we also need to export the functions in i2c-designware-core. This fixes below build error when CONFIG_I2C_DESIGNWARE_PLATFORM=y && CONFIG_I2C_DESIGNWARE_PCI=y: LD drivers/i2c/busses/built-in.o drivers/i2c/busses/i2c-designware-pci.o: In function `i2c_dw_clear_int': i2c-designware-core.c:(.text+0xa10): multiple definition of `i2c_dw_clear_int' drivers/i2c/busses/i2c-designware-platform.o:i2c-designware-platdrv.c:(.text+0x928): first defined here drivers/i2c/busses/i2c-designware-pci.o: In function `i2c_dw_init': i2c-designware-core.c:(.text+0x178): multiple definition of `i2c_dw_init' drivers/i2c/busses/i2c-designware-platform.o:i2c-designware-platdrv.c:(.text+0x90): first defined here drivers/i2c/busses/i2c-designware-pci.o: In function `dw_readl': i2c-designware-core.c:(.text+0xe8): multiple definition of `dw_readl' drivers/i2c/busses/i2c-designware-platform.o:i2c-designware-platdrv.c:(.text+0x0): first defined here drivers/i2c/busses/i2c-designware-pci.o: In function `i2c_dw_isr': i2c-designware-core.c:(.text+0x724): multiple definition of `i2c_dw_isr' drivers/i2c/busses/i2c-designware-platform.o:i2c-designware-platdrv.c:(.text+0x63c): first defined here drivers/i2c/busses/i2c-designware-pci.o: In function `i2c_dw_xfer': i2c-designware-core.c:(.text+0x4b0): multiple definition of `i2c_dw_xfer' drivers/i2c/busses/i2c-designware-platform.o:i2c-designware-platdrv.c:(.text+0x3c8): first defined here drivers/i2c/busses/i2c-designware-pci.o: In function `i2c_dw_is_enabled': i2c-designware-core.c:(.text+0x9d4): multiple definition of `i2c_dw_is_enabled' drivers/i2c/busses/i2c-designware-platform.o:i2c-designware-platdrv.c:(.text+0x8ec): first defined here drivers/i2c/busses/i2c-designware-pci.o: In function `dw_writel': i2c-designware-core.c:(.text+0x124): multiple definition of `dw_writel' drivers/i2c/busses/i2c-designware-platform.o:i2c-designware-platdrv.c:(.text+0x3c): first defined here drivers/i2c/busses/i2c-designware-pci.o: In function `i2c_dw_xfer_msg': i2c-designware-core.c:(.text+0x2e8): multiple definition of `i2c_dw_xfer_msg' drivers/i2c/busses/i2c-designware-platform.o:i2c-designware-platdrv.c:(.text+0x200): first defined here drivers/i2c/busses/i2c-designware-pci.o: In function `i2c_dw_enable': i2c-designware-core.c:(.text+0x9c8): multiple definition of `i2c_dw_enable' drivers/i2c/busses/i2c-designware-platform.o:i2c-designware-platdrv.c:(.text+0x8e0): first defined here drivers/i2c/busses/i2c-designware-pci.o: In function `i2c_dw_read_comp_param': i2c-designware-core.c:(.text+0xa24): multiple definition of `i2c_dw_read_comp_param' drivers/i2c/busses/i2c-designware-platform.o:i2c-designware-platdrv.c:(.text+0x93c): first defined here drivers/i2c/busses/i2c-designware-pci.o: In function `i2c_dw_disable': i2c-designware-core.c:(.text+0x9dc): multiple definition of `i2c_dw_disable' drivers/i2c/busses/i2c-designware-platform.o:i2c-designware-platdrv.c:(.text+0x8f4): first defined here drivers/i2c/busses/i2c-designware-pci.o: In function `i2c_dw_func': i2c-designware-core.c:(.text+0x710): multiple definition of `i2c_dw_func' drivers/i2c/busses/i2c-designware-platform.o:i2c-designware-platdrv.c:(.text+0x628): first defined here drivers/i2c/busses/i2c-designware-pci.o: In function `i2c_dw_disable_int': i2c-designware-core.c:(.text+0xa18): multiple definition of `i2c_dw_disable_int' drivers/i2c/busses/i2c-designware-platform.o:i2c-designware-platdrv.c:(.text+0x930): first defined here make[3]: *** [drivers/i2c/busses/built-in.o] Error 1 make[2]: *** [drivers/i2c/busses] Error 2 make[1]: *** [drivers/i2c] Error 2 make: *** [drivers] Error 2 Signed-off-by: Axel Lin Signed-off-by: Jean Delvare Tested-by: Jiri Slaby Cc: stable@vger.kernel.org [3.2+] --- drivers/i2c/busses/Kconfig | 5 +++++ drivers/i2c/busses/Makefile | 5 +++-- drivers/i2c/busses/i2c-designware-core.c | 11 +++++++++++ 3 files changed, 19 insertions(+), 2 deletions(-) diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig index af8bc83fd857..970a1612e795 100644 --- a/drivers/i2c/busses/Kconfig +++ b/drivers/i2c/busses/Kconfig @@ -355,9 +355,13 @@ config I2C_DAVINCI devices such as DaVinci NIC. For details please see http://www.ti.com/davinci +config I2C_DESIGNWARE_CORE + tristate + config I2C_DESIGNWARE_PLATFORM tristate "Synopsys DesignWare Platform" depends on HAVE_CLK + select I2C_DESIGNWARE_CORE help If you say yes to this option, support will be included for the Synopsys DesignWare I2C adapter. Only master mode is supported. @@ -368,6 +372,7 @@ config I2C_DESIGNWARE_PLATFORM config I2C_DESIGNWARE_PCI tristate "Synopsys DesignWare PCI" depends on PCI + select I2C_DESIGNWARE_CORE help If you say yes to this option, support will be included for the Synopsys DesignWare I2C adapter. Only master mode is supported. diff --git a/drivers/i2c/busses/Makefile b/drivers/i2c/busses/Makefile index ce3c2be7fb40..37c4182cc98b 100644 --- a/drivers/i2c/busses/Makefile +++ b/drivers/i2c/busses/Makefile @@ -33,10 +33,11 @@ obj-$(CONFIG_I2C_AU1550) += i2c-au1550.o obj-$(CONFIG_I2C_BLACKFIN_TWI) += i2c-bfin-twi.o obj-$(CONFIG_I2C_CPM) += i2c-cpm.o obj-$(CONFIG_I2C_DAVINCI) += i2c-davinci.o +obj-$(CONFIG_I2C_DESIGNWARE_CORE) += i2c-designware-core.o obj-$(CONFIG_I2C_DESIGNWARE_PLATFORM) += i2c-designware-platform.o -i2c-designware-platform-objs := i2c-designware-platdrv.o i2c-designware-core.o +i2c-designware-platform-objs := i2c-designware-platdrv.o obj-$(CONFIG_I2C_DESIGNWARE_PCI) += i2c-designware-pci.o -i2c-designware-pci-objs := i2c-designware-pcidrv.o i2c-designware-core.o +i2c-designware-pci-objs := i2c-designware-pcidrv.o obj-$(CONFIG_I2C_EG20T) += i2c-eg20t.o obj-$(CONFIG_I2C_GPIO) += i2c-gpio.o obj-$(CONFIG_I2C_HIGHLANDER) += i2c-highlander.o diff --git a/drivers/i2c/busses/i2c-designware-core.c b/drivers/i2c/busses/i2c-designware-core.c index 1e48bec80edf..7b8ebbefb581 100644 --- a/drivers/i2c/busses/i2c-designware-core.c +++ b/drivers/i2c/busses/i2c-designware-core.c @@ -25,6 +25,7 @@ * ---------------------------------------------------------------------------- * */ +#include #include #include #include @@ -316,6 +317,7 @@ int i2c_dw_init(struct dw_i2c_dev *dev) dw_writel(dev, dev->master_cfg , DW_IC_CON); return 0; } +EXPORT_SYMBOL_GPL(i2c_dw_init); /* * Waiting for bus not busy @@ -568,12 +570,14 @@ done: return ret; } +EXPORT_SYMBOL_GPL(i2c_dw_xfer); u32 i2c_dw_func(struct i2c_adapter *adap) { struct dw_i2c_dev *dev = i2c_get_adapdata(adap); return dev->functionality; } +EXPORT_SYMBOL_GPL(i2c_dw_func); static u32 i2c_dw_read_clear_intrbits(struct dw_i2c_dev *dev) { @@ -678,17 +682,20 @@ tx_aborted: return IRQ_HANDLED; } +EXPORT_SYMBOL_GPL(i2c_dw_isr); void i2c_dw_enable(struct dw_i2c_dev *dev) { /* Enable the adapter */ dw_writel(dev, 1, DW_IC_ENABLE); } +EXPORT_SYMBOL_GPL(i2c_dw_enable); u32 i2c_dw_is_enabled(struct dw_i2c_dev *dev) { return dw_readl(dev, DW_IC_ENABLE); } +EXPORT_SYMBOL_GPL(i2c_dw_is_enabled); void i2c_dw_disable(struct dw_i2c_dev *dev) { @@ -699,18 +706,22 @@ void i2c_dw_disable(struct dw_i2c_dev *dev) dw_writel(dev, 0, DW_IC_INTR_MASK); dw_readl(dev, DW_IC_CLR_INTR); } +EXPORT_SYMBOL_GPL(i2c_dw_disable); void i2c_dw_clear_int(struct dw_i2c_dev *dev) { dw_readl(dev, DW_IC_CLR_INTR); } +EXPORT_SYMBOL_GPL(i2c_dw_clear_int); void i2c_dw_disable_int(struct dw_i2c_dev *dev) { dw_writel(dev, 0, DW_IC_INTR_MASK); } +EXPORT_SYMBOL_GPL(i2c_dw_disable_int); u32 i2c_dw_read_comp_param(struct dw_i2c_dev *dev) { return dw_readl(dev, DW_IC_COMP_PARAM_1); } +EXPORT_SYMBOL_GPL(i2c_dw_read_comp_param); -- cgit v1.2.1 From 390946b17260797635cd9e65496b5a17b2db0a5d Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Mon, 10 Sep 2012 10:14:02 +0200 Subject: i2c-core: Fix for lockdep validator If kernel is compiled with CONFIG_PROVE_LOCKING the validator raises an error when a multiplexer is removed via sysfs and sub-clients are connected to it. This is a false positive. Documentation/lockdep-design.txt recommends to handle this via calls to mutex_lock_nested(). Based on an earlier fix from Michael Lawnick. Note that the extra code resolves to nothing unless CONFIG_DEBUG_LOCK_ALLOC=y. Signed-off-by: Jean Delvare Cc: Michael Lawnick --- drivers/i2c/i2c-core.c | 22 ++++++++++++++++++++-- 1 file changed, 20 insertions(+), 2 deletions(-) diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c index 2efa56c5ff2c..2091ae8f539a 100644 --- a/drivers/i2c/i2c-core.c +++ b/drivers/i2c/i2c-core.c @@ -636,6 +636,22 @@ static void i2c_adapter_dev_release(struct device *dev) complete(&adap->dev_released); } +/* + * This function is only needed for mutex_lock_nested, so it is never + * called unless locking correctness checking is enabled. Thus we + * make it inline to avoid a compiler warning. That's what gcc ends up + * doing anyway. + */ +static inline unsigned int i2c_adapter_depth(struct i2c_adapter *adapter) +{ + unsigned int depth = 0; + + while ((adapter = i2c_parent_is_i2c_adapter(adapter))) + depth++; + + return depth; +} + /* * Let users instantiate I2C devices through sysfs. This can be used when * platform initialization code doesn't contain the proper data for @@ -726,7 +742,8 @@ i2c_sysfs_delete_device(struct device *dev, struct device_attribute *attr, /* Make sure the device was added through sysfs */ res = -ENOENT; - mutex_lock(&adap->userspace_clients_lock); + mutex_lock_nested(&adap->userspace_clients_lock, + i2c_adapter_depth(adap)); list_for_each_entry_safe(client, next, &adap->userspace_clients, detected) { if (client->addr == addr) { @@ -1073,7 +1090,8 @@ int i2c_del_adapter(struct i2c_adapter *adap) return res; /* Remove devices instantiated from sysfs */ - mutex_lock(&adap->userspace_clients_lock); + mutex_lock_nested(&adap->userspace_clients_lock, + i2c_adapter_depth(adap)); list_for_each_entry_safe(client, next, &adap->userspace_clients, detected) { dev_dbg(&adap->dev, "Removing %s at 0x%x\n", client->name, -- cgit v1.2.1 From 07dc59f0988cb54fd87bd373b3b27eb2401dd811 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Mon, 10 Sep 2012 09:39:31 +0200 Subject: ALSA: hda - Fix Oops at codec reset/reconfig snd_hda_codec_reset() calls restore_pincfgs() where the codec is powered up again, which eventually tries to resume and initialize via the callbacks of the codec. However, it's the place just after codec free callback, thus no codec callbacks should be called after that. On a codec like CS4206, it results in Oops due to the access in init callback. This patch fixes the issue by clearing the codec callbacks properly after freeing codec. Reported-by: Daniel J Blueman Cc: Signed-off-by: Takashi Iwai --- sound/pci/hda/hda_codec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index f25c24c743f9..1c65cc5e3a31 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -2353,6 +2353,7 @@ int snd_hda_codec_reset(struct hda_codec *codec) } if (codec->patch_ops.free) codec->patch_ops.free(codec); + memset(&codec->patch_ops, 0, sizeof(codec->patch_ops)); snd_hda_jack_tbl_clear(codec); codec->proc_widget_hook = NULL; codec->spec = NULL; @@ -2368,7 +2369,6 @@ int snd_hda_codec_reset(struct hda_codec *codec) codec->num_pcms = 0; codec->pcm_info = NULL; codec->preset = NULL; - memset(&codec->patch_ops, 0, sizeof(codec->patch_ops)); codec->slave_dig_outs = NULL; codec->spdif_status_reset = 0; module_put(codec->owner); -- cgit v1.2.1 From 4484141a94f4a5afea6ebc0b2abba0aa1b0ae9d1 Mon Sep 17 00:00:00 2001 From: Xiao Guangrong Date: Fri, 7 Sep 2012 14:14:20 +0800 Subject: KVM: fix error paths for failed gfn_to_page() calls This bug was triggered: [ 4220.198458] BUG: unable to handle kernel paging request at fffffffffffffffe [ 4220.203907] IP: [] put_page+0xf/0x34 ...... [ 4220.237326] Call Trace: [ 4220.237361] [] kvm_arch_destroy_vm+0xf9/0x101 [kvm] [ 4220.237382] [] kvm_put_kvm+0xcc/0x127 [kvm] [ 4220.237401] [] kvm_vcpu_release+0x18/0x1c [kvm] [ 4220.237407] [] __fput+0x111/0x1ed [ 4220.237411] [] ____fput+0xe/0x10 [ 4220.237418] [] task_work_run+0x5d/0x88 [ 4220.237424] [] do_exit+0x2bf/0x7ca The test case: printf(fmt, ##args); \ exit(-1);} while (0) static int create_vm(void) { int sys_fd, vm_fd; sys_fd = open("/dev/kvm", O_RDWR); if (sys_fd < 0) die("open /dev/kvm fail.\n"); vm_fd = ioctl(sys_fd, KVM_CREATE_VM, 0); if (vm_fd < 0) die("KVM_CREATE_VM fail.\n"); return vm_fd; } static int create_vcpu(int vm_fd) { int vcpu_fd; vcpu_fd = ioctl(vm_fd, KVM_CREATE_VCPU, 0); if (vcpu_fd < 0) die("KVM_CREATE_VCPU ioctl.\n"); printf("Create vcpu.\n"); return vcpu_fd; } static void *vcpu_thread(void *arg) { int vm_fd = (int)(long)arg; create_vcpu(vm_fd); return NULL; } int main(int argc, char *argv[]) { pthread_t thread; int vm_fd; (void)argc; (void)argv; vm_fd = create_vm(); pthread_create(&thread, NULL, vcpu_thread, (void *)(long)vm_fd); printf("Exit.\n"); return 0; } It caused by release kvm->arch.ept_identity_map_addr which is the error page. The parent thread can send KILL signal to the vcpu thread when it was exiting which stops faulting pages and potentially allocating memory. So gfn_to_pfn/gfn_to_page may fail at this time Fixed by checking the page before it is used Signed-off-by: Xiao Guangrong Signed-off-by: Avi Kivity --- arch/x86/kvm/vmx.c | 19 ++++++++++++++++--- arch/x86/kvm/x86.c | 13 ++++++++++--- 2 files changed, 26 insertions(+), 6 deletions(-) diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 002b4a566e2d..b1eb202ee76a 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -3619,6 +3619,7 @@ static void seg_setup(int seg) static int alloc_apic_access_page(struct kvm *kvm) { + struct page *page; struct kvm_userspace_memory_region kvm_userspace_mem; int r = 0; @@ -3633,7 +3634,13 @@ static int alloc_apic_access_page(struct kvm *kvm) if (r) goto out; - kvm->arch.apic_access_page = gfn_to_page(kvm, 0xfee00); + page = gfn_to_page(kvm, 0xfee00); + if (is_error_page(page)) { + r = -EFAULT; + goto out; + } + + kvm->arch.apic_access_page = page; out: mutex_unlock(&kvm->slots_lock); return r; @@ -3641,6 +3648,7 @@ out: static int alloc_identity_pagetable(struct kvm *kvm) { + struct page *page; struct kvm_userspace_memory_region kvm_userspace_mem; int r = 0; @@ -3656,8 +3664,13 @@ static int alloc_identity_pagetable(struct kvm *kvm) if (r) goto out; - kvm->arch.ept_identity_pagetable = gfn_to_page(kvm, - kvm->arch.ept_identity_map_addr >> PAGE_SHIFT); + page = gfn_to_page(kvm, kvm->arch.ept_identity_map_addr >> PAGE_SHIFT); + if (is_error_page(page)) { + r = -EFAULT; + goto out; + } + + kvm->arch.ept_identity_pagetable = page; out: mutex_unlock(&kvm->slots_lock); return r; diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 148ed666e311..2966c847d489 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -5113,17 +5113,20 @@ static void post_kvm_run_save(struct kvm_vcpu *vcpu) !kvm_event_needs_reinjection(vcpu); } -static void vapic_enter(struct kvm_vcpu *vcpu) +static int vapic_enter(struct kvm_vcpu *vcpu) { struct kvm_lapic *apic = vcpu->arch.apic; struct page *page; if (!apic || !apic->vapic_addr) - return; + return 0; page = gfn_to_page(vcpu->kvm, apic->vapic_addr >> PAGE_SHIFT); + if (is_error_page(page)) + return -EFAULT; vcpu->arch.apic->vapic_page = page; + return 0; } static void vapic_exit(struct kvm_vcpu *vcpu) @@ -5430,7 +5433,11 @@ static int __vcpu_run(struct kvm_vcpu *vcpu) } vcpu->srcu_idx = srcu_read_lock(&kvm->srcu); - vapic_enter(vcpu); + r = vapic_enter(vcpu); + if (r) { + srcu_read_unlock(&kvm->srcu, vcpu->srcu_idx); + return r; + } r = 1; while (r > 0) { -- cgit v1.2.1 From f3d87524975f01b885fc3d009c6ab6afd0d00746 Mon Sep 17 00:00:00 2001 From: Thomas Petazzoni Date: Mon, 10 Sep 2012 16:14:16 +0200 Subject: arm: mm: fix DMA pool affiliation check The __free_from_pool() function was changed in e9da6e9905e639b0f842a244bc770b48ad0523e9. Unfortunately, the test that checks whether the provided (start,size) is within the DMA pool has been improperly modified. It used to be: if (start < coherent_head.vm_start || end > coherent_head.vm_end) Where coherent_head.vm_end was non-inclusive (i.e, it did not include the first byte after the pool). The test has been changed to: if (start < pool->vaddr || start > pool->vaddr + pool->size) So now pool->vaddr + pool->size is inclusive (i.e, it includes the first byte after the pool), so the test should be >= instead of >. This bug causes the following message when freeing the *first* DMA coherent buffer that has been allocated, because its virtual address is exactly equal to pool->vaddr + pool->size : WARNING: at /home/thomas/projets/linux-2.6/arch/arm/mm/dma-mapping.c:463 __free_from_pool+0xa4/0xc0() freeing wrong coherent size from pool Signed-off-by: Thomas Petazzoni Cc: Marek Szyprowski Cc: Russell King Cc: Lior Amsalem Cc: Maen Suleiman Cc: Tawfik Bayouk Cc: Shadi Ammouri Cc: Eran Ben-Avi Cc: Yehuda Yitschak Cc: Nadav Haklai [m.szyprowski: rebased onto v3.6-rc5 and resolved conflict] Signed-off-by: Marek Szyprowski --- arch/arm/mm/dma-mapping.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c index 051204fc4617..e59c4ab71bcb 100644 --- a/arch/arm/mm/dma-mapping.c +++ b/arch/arm/mm/dma-mapping.c @@ -489,7 +489,7 @@ static bool __in_atomic_pool(void *start, size_t size) void *pool_start = pool->vaddr; void *pool_end = pool->vaddr + pool->size; - if (start < pool_start || start > pool_end) + if (start < pool_start || start >= pool_end) return false; if (end <= pool_end) -- cgit v1.2.1 From c06fad9d28c95b024ea10455cf1397432b12848d Mon Sep 17 00:00:00 2001 From: "Philip, Avinash" Date: Thu, 23 Aug 2012 12:29:46 +0530 Subject: pwm: pwm-tiecap: Disable APWM mode after configure APWM mode is enabled while configuring PWM device. This was done to handle shadow & immediate mode update of period and compare registers. However, leaving it enabled after configuring will cause APWM output on PWM pin even before enabling PWM device. Fix the same by disabling APWM mode after configuring if PWM device is not running. Signed-off-by: Philip, Avinash Signed-off-by: Thierry Reding --- drivers/pwm/pwm-tiecap.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/pwm/pwm-tiecap.c b/drivers/pwm/pwm-tiecap.c index 0b66d0f25922..4b6688909fee 100644 --- a/drivers/pwm/pwm-tiecap.c +++ b/drivers/pwm/pwm-tiecap.c @@ -100,6 +100,13 @@ static int ecap_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm, writel(period_cycles, pc->mmio_base + CAP3); } + if (!test_bit(PWMF_ENABLED, &pwm->flags)) { + reg_val = readw(pc->mmio_base + ECCTL2); + /* Disable APWM mode to put APWM output Low */ + reg_val &= ~ECCTL2_APWM_MODE; + writew(reg_val, pc->mmio_base + ECCTL2); + } + pm_runtime_put_sync(pc->chip.dev); return 0; } -- cgit v1.2.1 From 01b2d4536f0215c6d97d77e157afee04300ffc90 Mon Sep 17 00:00:00 2001 From: "Philip, Avinash" Date: Thu, 6 Sep 2012 10:44:25 +0530 Subject: pwm: pwm-tiehrpwm: Fix conflicting channel period setting EHRPWM hardware supports 2 independent PWM channels. However the device uses only one register to handle period setting for both channels. So both channels should be configured for same period (in nsec). Fix the same by returning error for conflicting period values. However, allow 1. Configuration of period settings if not conflicting with other channels 2. Re-configuring of period settings if no other channels being configured Signed-off-by: Philip, Avinash Signed-off-by: Thierry Reding --- drivers/pwm/pwm-tiehrpwm.c | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) diff --git a/drivers/pwm/pwm-tiehrpwm.c b/drivers/pwm/pwm-tiehrpwm.c index c3756d1be194..b1996bcd5b78 100644 --- a/drivers/pwm/pwm-tiehrpwm.c +++ b/drivers/pwm/pwm-tiehrpwm.c @@ -104,6 +104,7 @@ struct ehrpwm_pwm_chip { struct pwm_chip chip; unsigned int clk_rate; void __iomem *mmio_base; + unsigned long period_cycles[NUM_PWM_CHANNEL]; }; static inline struct ehrpwm_pwm_chip *to_ehrpwm_pwm_chip(struct pwm_chip *chip) @@ -210,6 +211,7 @@ static int ehrpwm_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm, unsigned long long c; unsigned long period_cycles, duty_cycles; unsigned short ps_divval, tb_divval; + int i; if (period_ns < 0 || duty_ns < 0 || period_ns > NSEC_PER_SEC) return -ERANGE; @@ -229,6 +231,28 @@ static int ehrpwm_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm, duty_cycles = (unsigned long)c; } + /* + * Period values should be same for multiple PWM channels as IP uses + * same period register for multiple channels. + */ + for (i = 0; i < NUM_PWM_CHANNEL; i++) { + if (pc->period_cycles[i] && + (pc->period_cycles[i] != period_cycles)) { + /* + * Allow channel to reconfigure period if no other + * channels being configured. + */ + if (i == pwm->hwpwm) + continue; + + dev_err(chip->dev, "Period value conflicts with channel %d\n", + i); + return -EINVAL; + } + } + + pc->period_cycles[pwm->hwpwm] = period_cycles; + /* Configure clock prescaler to support Low frequency PWM wave */ if (set_prescale_div(period_cycles/PERIOD_MAX, &ps_divval, &tb_divval)) { @@ -320,10 +344,15 @@ static void ehrpwm_pwm_disable(struct pwm_chip *chip, struct pwm_device *pwm) static void ehrpwm_pwm_free(struct pwm_chip *chip, struct pwm_device *pwm) { + struct ehrpwm_pwm_chip *pc = to_ehrpwm_pwm_chip(chip); + if (test_bit(PWMF_ENABLED, &pwm->flags)) { dev_warn(chip->dev, "Removing PWM device without disabling\n"); pm_runtime_put_sync(chip->dev); } + + /* set period value to zero on free */ + pc->period_cycles[pwm->hwpwm] = 0; } static const struct pwm_ops ehrpwm_pwm_ops = { -- cgit v1.2.1 From 552a37e9360a293cd20e7f8ff1fb326a244c5f1e Mon Sep 17 00:00:00 2001 From: Lai Jiangshan Date: Mon, 10 Sep 2012 10:03:33 -0700 Subject: workqueue: restore POOL_MANAGING_WORKERS This patch restores POOL_MANAGING_WORKERS which was replaced by pool->manager_mutex by 6037315269 "workqueue: use mutex for global_cwq manager exclusion". There's a subtle idle worker depletion bug across CPU hotplug events and we need to distinguish an actual manager and CPU hotplug preventing management. POOL_MANAGING_WORKERS will be used for the former and manager_mutex the later. This patch just lays POOL_MANAGING_WORKERS on top of the existing manager_mutex and doesn't introduce any synchronization changes. The next patch will update it. Note that this patch fixes a non-critical anomaly where too_many_workers() may return %true spuriously while CPU hotplug is in progress. While the issue could schedule idle timer spuriously, it didn't trigger any actual misbehavior. tj: Rewrote patch description. Signed-off-by: Lai Jiangshan Signed-off-by: Tejun Heo --- kernel/workqueue.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/kernel/workqueue.c b/kernel/workqueue.c index dc7b8458e275..383548ed0b54 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -66,6 +66,7 @@ enum { /* pool flags */ POOL_MANAGE_WORKERS = 1 << 0, /* need to manage workers */ + POOL_MANAGING_WORKERS = 1 << 1, /* managing workers */ /* worker flags */ WORKER_STARTED = 1 << 0, /* started */ @@ -652,7 +653,7 @@ static bool need_to_manage_workers(struct worker_pool *pool) /* Do we have too many workers and should some go away? */ static bool too_many_workers(struct worker_pool *pool) { - bool managing = mutex_is_locked(&pool->manager_mutex); + bool managing = pool->flags & POOL_MANAGING_WORKERS; int nr_idle = pool->nr_idle + managing; /* manager is considered idle */ int nr_busy = pool->nr_workers - nr_idle; @@ -1827,6 +1828,7 @@ static bool manage_workers(struct worker *worker) if (!mutex_trylock(&pool->manager_mutex)) return ret; + pool->flags |= POOL_MANAGING_WORKERS; pool->flags &= ~POOL_MANAGE_WORKERS; /* @@ -1836,6 +1838,7 @@ static bool manage_workers(struct worker *worker) ret |= maybe_destroy_workers(pool); ret |= maybe_create_worker(pool); + pool->flags &= ~POOL_MANAGING_WORKERS; mutex_unlock(&pool->manager_mutex); return ret; } -- cgit v1.2.1 From ee378aa49b594da9bda6a2c768cc5b2ad585f911 Mon Sep 17 00:00:00 2001 From: Lai Jiangshan Date: Mon, 10 Sep 2012 10:03:44 -0700 Subject: workqueue: fix possible idle worker depletion across CPU hotplug To simplify both normal and CPU hotplug paths, worker management is prevented while CPU hoplug is in progress. This is achieved by CPU hotplug holding the same exclusion mechanism used by workers to ensure there's only one manager per pool. If someone else seems to be performing the manager role, workers proceed to execute work items. CPU hotplug using the same mechanism can lead to idle worker depletion because all workers could proceed to execute work items while CPU hotplug is in progress and CPU hotplug itself wouldn't actually perform the worker management duty - it doesn't guarantee that there's an idle worker left when it releases management. This idle worker depletion, under extreme circumstances, can break forward-progress guarantee and thus lead to deadlock. This patch fixes the bug by using separate mechanisms for manager exclusion among workers and hotplug exclusion. For manager exclusion, POOL_MANAGING_WORKERS which was restored by the previous patch is used. pool->manager_mutex is now only used for exclusion between the elected manager and CPU hotplug. The elected manager won't proceed without holding pool->manager_mutex. This ensures that the worker which won the manager position can't skip managing while CPU hotplug is in progress. It will block on manager_mutex and perform management after CPU hotplug is complete. Note that hotplug may happen while waiting for manager_mutex. A manager isn't either on idle or busy list and thus the hoplug code can't unbind/rebind it. Make the manager handle its own un/rebinding. tj: Updated comment and description. Signed-off-by: Lai Jiangshan Signed-off-by: Tejun Heo --- kernel/workqueue.c | 37 ++++++++++++++++++++++++++++++++++++- 1 file changed, 36 insertions(+), 1 deletion(-) diff --git a/kernel/workqueue.c b/kernel/workqueue.c index 383548ed0b54..1e1373bcb3e3 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -1825,10 +1825,45 @@ static bool manage_workers(struct worker *worker) struct worker_pool *pool = worker->pool; bool ret = false; - if (!mutex_trylock(&pool->manager_mutex)) + if (pool->flags & POOL_MANAGING_WORKERS) return ret; pool->flags |= POOL_MANAGING_WORKERS; + + /* + * To simplify both worker management and CPU hotplug, hold off + * management while hotplug is in progress. CPU hotplug path can't + * grab %POOL_MANAGING_WORKERS to achieve this because that can + * lead to idle worker depletion (all become busy thinking someone + * else is managing) which in turn can result in deadlock under + * extreme circumstances. Use @pool->manager_mutex to synchronize + * manager against CPU hotplug. + * + * manager_mutex would always be free unless CPU hotplug is in + * progress. trylock first without dropping @gcwq->lock. + */ + if (unlikely(!mutex_trylock(&pool->manager_mutex))) { + spin_unlock_irq(&pool->gcwq->lock); + mutex_lock(&pool->manager_mutex); + /* + * CPU hotplug could have happened while we were waiting + * for manager_mutex. Hotplug itself can't handle us + * because manager isn't either on idle or busy list, and + * @gcwq's state and ours could have deviated. + * + * As hotplug is now excluded via manager_mutex, we can + * simply try to bind. It will succeed or fail depending + * on @gcwq's current state. Try it and adjust + * %WORKER_UNBOUND accordingly. + */ + if (worker_maybe_bind_and_lock(worker)) + worker->flags &= ~WORKER_UNBOUND; + else + worker->flags |= WORKER_UNBOUND; + + ret = true; + } + pool->flags &= ~POOL_MANAGE_WORKERS; /* -- cgit v1.2.1 From f08dea734844aa42ec57c229b0b73b3d7d21f810 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B8rn=20Mork?= Date: Mon, 10 Sep 2012 12:01:05 +0200 Subject: USB: ftdi_sio: do not claim CDC ACM function MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The Microchip vid:pid 04d8:000a is used for their CDC ACM demo firmware application. This is a device with a single function conforming to the CDC ACM specification and with the intention of demonstrating CDC ACM class firmware and driver interaction. The demo is used on a number of development boards, and may also be used unmodified by vendors using Microchip hardware. Some vendors have re-used this vid:pid for other types of firmware, emulating FTDI chips. Attempting to continue to support such devices without breaking class based applications that by matching on interface class/subclass/proto being ff/ff/00. I have no information about the actual device or interface descriptors, but this will at least make the proper CDC ACM devices work again. Anyone having details of the offending device's descriptors should update this entry with the details. Reported-by: Florian Wöhrl Reported-by: Xiaofan Chen Cc: stable Cc: Alan Cox Cc: Bruno Thomsen Signed-off-by: Bjørn Mork Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/ftdi_sio.c | 4 +++- drivers/usb/serial/ftdi_sio_ids.h | 5 ++++- 2 files changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index e2fa7881067d..f906b3aec217 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -805,7 +805,9 @@ static struct usb_device_id id_table_combined [] = { .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, { USB_DEVICE(ADI_VID, ADI_GNICEPLUS_PID), .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, - { USB_DEVICE(MICROCHIP_VID, MICROCHIP_USB_BOARD_PID) }, + { USB_DEVICE_AND_INTERFACE_INFO(MICROCHIP_VID, MICROCHIP_USB_BOARD_PID, + USB_CLASS_VENDOR_SPEC, + USB_SUBCLASS_VENDOR_SPEC, 0x00) }, { USB_DEVICE(JETI_VID, JETI_SPC1201_PID) }, { USB_DEVICE(MARVELL_VID, MARVELL_SHEEVAPLUG_PID), .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h index 9bcaf9c3d3e4..41fe5826100c 100644 --- a/drivers/usb/serial/ftdi_sio_ids.h +++ b/drivers/usb/serial/ftdi_sio_ids.h @@ -542,7 +542,10 @@ /* * Microchip Technology, Inc. * - * MICROCHIP_VID (0x04D8) and MICROCHIP_USB_BOARD_PID (0x000A) are also used by: + * MICROCHIP_VID (0x04D8) and MICROCHIP_USB_BOARD_PID (0x000A) are + * used by single function CDC ACM class based firmware demo + * applications. The VID/PID has also been used in firmware + * emulating FTDI serial chips by: * Hornby Elite - Digital Command Control Console * http://www.hornby.com/hornby-dcc/controllers/ */ -- cgit v1.2.1 From 2120c52da6fe741454a60644018ad2a6abd957ac Mon Sep 17 00:00:00 2001 From: Lennart Sorensen Date: Fri, 7 Sep 2012 12:14:02 +0000 Subject: sierra_net: Endianess bug fix. I discovered I couldn't get sierra_net to work on a powerpc. Turns out the firmware attribute check assumes the system is little endian and hence fails because the attributes is a 16 bit value. Signed-off-by: Len Sorensen Signed-off-by: David S. Miller --- drivers/net/usb/sierra_net.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/usb/sierra_net.c b/drivers/net/usb/sierra_net.c index 7be49ea60b6d..8e22417fa6c1 100644 --- a/drivers/net/usb/sierra_net.c +++ b/drivers/net/usb/sierra_net.c @@ -656,7 +656,7 @@ static int sierra_net_get_fw_attr(struct usbnet *dev, u16 *datap) return -EIO; } - *datap = *attrdata; + *datap = le16_to_cpu(*attrdata); kfree(attrdata); return result; -- cgit v1.2.1 From 974a3b0f9f05b748fe11f1afc31efc32aa5160cb Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Sun, 9 Sep 2012 11:54:16 +0200 Subject: drm/i915: set the right gen3 flip_done mode also at resume Currently we've only frobbed this bit at irq_init time, but did not restore it at resume time. Move it to the gen3 clock gating function to fix this. Notice while reading through code. Cc: stable@vger.kernel.org (for 3.5 only) Reviewed-by: Chris Wilson Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/i915_irq.c | 3 --- drivers/gpu/drm/i915/intel_pm.c | 3 +++ 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index 8a3828528b9d..5249640cce13 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -2700,9 +2700,6 @@ void intel_irq_init(struct drm_device *dev) dev->driver->irq_handler = i8xx_irq_handler; dev->driver->irq_uninstall = i8xx_irq_uninstall; } else if (INTEL_INFO(dev)->gen == 3) { - /* IIR "flip pending" means done if this bit is set */ - I915_WRITE(ECOSKPD, _MASKED_BIT_DISABLE(ECO_FLIP_DONE)); - dev->driver->irq_preinstall = i915_irq_preinstall; dev->driver->irq_postinstall = i915_irq_postinstall; dev->driver->irq_uninstall = i915_irq_uninstall; diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 1881c8c83f0e..ba8a27b1757a 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -3672,6 +3672,9 @@ static void gen3_init_clock_gating(struct drm_device *dev) if (IS_PINEVIEW(dev)) I915_WRITE(ECOSKPD, _MASKED_BIT_ENABLE(ECO_GATING_CX_ONLY)); + + /* IIR "flip pending" means done if this bit is set */ + I915_WRITE(ECOSKPD, _MASKED_BIT_DISABLE(ECO_FLIP_DONE)); } static void i85x_init_clock_gating(struct drm_device *dev) -- cgit v1.2.1 From 566f26aa705609d05940289036ab914c8a3be707 Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Sun, 9 Sep 2012 18:38:27 +0000 Subject: caif: move the dereference below the NULL test The dereference should be moved below the NULL test. spatch with a semantic match is used to found this. (http://coccinelle.lip6.fr/) Signed-off-by: Wei Yongjun Signed-off-by: David S. Miller --- net/caif/cfsrvl.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/net/caif/cfsrvl.c b/net/caif/cfsrvl.c index dd485f6128e8..ba217e90765e 100644 --- a/net/caif/cfsrvl.c +++ b/net/caif/cfsrvl.c @@ -211,9 +211,10 @@ void caif_client_register_refcnt(struct cflayer *adapt_layer, void (*put)(struct cflayer *lyr)) { struct cfsrvl *service; - service = container_of(adapt_layer->dn, struct cfsrvl, layer); - WARN_ON(adapt_layer == NULL || adapt_layer->dn == NULL); + if (WARN_ON(adapt_layer == NULL || adapt_layer->dn == NULL)) + return; + service = container_of(adapt_layer->dn, struct cfsrvl, layer); service->hold = hold; service->put = put; } -- cgit v1.2.1 From 0b836ddde177bdd5790ade83772860940bd481ea Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Mon, 10 Sep 2012 14:06:58 +0200 Subject: ixp4xx_hss: fix build failure due to missing linux/module.h inclusion Commit 36a1211970193ce215de50ed1e4e1272bc814df1 (netprio_cgroup.h: dont include module.h from other includes) made the following build error on ixp4xx_hss pop up: CC [M] drivers/net/wan/ixp4xx_hss.o drivers/net/wan/ixp4xx_hss.c:1412:20: error: expected ';', ',' or ')' before string constant drivers/net/wan/ixp4xx_hss.c:1413:25: error: expected ';', ',' or ')' before string constant drivers/net/wan/ixp4xx_hss.c:1414:21: error: expected ';', ',' or ')' before string constant drivers/net/wan/ixp4xx_hss.c:1415:19: error: expected ';', ',' or ')' before string constant make[8]: *** [drivers/net/wan/ixp4xx_hss.o] Error 1 This was previously hidden because ixp4xx_hss includes linux/hdlc.h which includes linux/netdevice.h which includes linux/netprio_cgroup.h which used to include linux/module.h. The real issue was actually present since the initial commit that added this driver since it uses macros from linux/module.h without including this file. Signed-off-by: Florian Fainelli Signed-off-by: David S. Miller --- drivers/net/wan/ixp4xx_hss.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/wan/ixp4xx_hss.c b/drivers/net/wan/ixp4xx_hss.c index aaaca9aa2293..3f575afd8cfc 100644 --- a/drivers/net/wan/ixp4xx_hss.c +++ b/drivers/net/wan/ixp4xx_hss.c @@ -10,6 +10,7 @@ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt +#include #include #include #include -- cgit v1.2.1 From 1c463e57b32e3b6a3250fe75d1d56cb598d664e6 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Mon, 10 Sep 2012 09:13:07 -0700 Subject: net: fix net/core/sock.c build error Fix net/core/sock.c build error when CONFIG_INET is not enabled: net/built-in.o: In function `sock_edemux': (.text+0xd396): undefined reference to `inet_twsk_put' Signed-off-by: Randy Dunlap Signed-off-by: David S. Miller --- net/core/sock.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/core/sock.c b/net/core/sock.c index 7f64467535d1..305792076121 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -1525,9 +1525,11 @@ void sock_edemux(struct sk_buff *skb) { struct sock *sk = skb->sk; +#ifdef CONFIG_INET if (sk->sk_state == TCP_TIME_WAIT) inet_twsk_put(inet_twsk(sk)); else +#endif sock_put(sk); } EXPORT_SYMBOL(sock_edemux); -- cgit v1.2.1 From 6a44886899ef8cc396e230e492e6a56a883889f3 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B8rn=20Mork?= Date: Mon, 10 Sep 2012 22:17:34 +0200 Subject: USB: cdc-wdm: fix wdm_find_device* return value MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit A logic error made the wdm_find_device* functions return a bogus pointer into static data instead of the intended NULL no matching device was found. Cc: stable # v3.4+ Cc: Oliver Neukum Signed-off-by: Bjørn Mork Signed-off-by: Greg Kroah-Hartman --- drivers/usb/class/cdc-wdm.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c index 65a55abb791f..5f0cb417b736 100644 --- a/drivers/usb/class/cdc-wdm.c +++ b/drivers/usb/class/cdc-wdm.c @@ -109,12 +109,14 @@ static struct usb_driver wdm_driver; /* return intfdata if we own the interface, else look up intf in the list */ static struct wdm_device *wdm_find_device(struct usb_interface *intf) { - struct wdm_device *desc = NULL; + struct wdm_device *desc; spin_lock(&wdm_device_list_lock); list_for_each_entry(desc, &wdm_device_list, device_list) if (desc->intf == intf) - break; + goto found; + desc = NULL; +found: spin_unlock(&wdm_device_list_lock); return desc; @@ -122,12 +124,14 @@ static struct wdm_device *wdm_find_device(struct usb_interface *intf) static struct wdm_device *wdm_find_device_by_minor(int minor) { - struct wdm_device *desc = NULL; + struct wdm_device *desc; spin_lock(&wdm_device_list_lock); list_for_each_entry(desc, &wdm_device_list, device_list) if (desc->intf->minor == minor) - break; + goto found; + desc = NULL; +found: spin_unlock(&wdm_device_list_lock); return desc; -- cgit v1.2.1 From abf02cfc179bb4bd30d05f582d61b3b8f429b813 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Mon, 10 Sep 2012 21:22:11 +0200 Subject: staging: r8712u: fix bug in r8712_recv_indicatepkt() 64bit arches have a buggy r8712u driver, let's fix it. skb->tail must be set properly or network stack behavior is undefined. Addresses https://bugzilla.redhat.com/show_bug.cgi?id=847525 Addresses https://bugzilla.kernel.org/show_bug.cgi?id=45071 Signed-off-by: Eric Dumazet Cc: Dave Jones Cc: stable [2.6.37+] Acked-by: Larry Finger Signed-off-by: Greg Kroah-Hartman --- drivers/staging/rtl8712/recv_linux.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) diff --git a/drivers/staging/rtl8712/recv_linux.c b/drivers/staging/rtl8712/recv_linux.c index 0e26d5f6cf2d..495ee1205e02 100644 --- a/drivers/staging/rtl8712/recv_linux.c +++ b/drivers/staging/rtl8712/recv_linux.c @@ -117,13 +117,8 @@ void r8712_recv_indicatepkt(struct _adapter *padapter, if (skb == NULL) goto _recv_indicatepkt_drop; skb->data = precv_frame->u.hdr.rx_data; -#ifdef NET_SKBUFF_DATA_USES_OFFSET - skb->tail = (sk_buff_data_t)(precv_frame->u.hdr.rx_tail - - precv_frame->u.hdr.rx_head); -#else - skb->tail = (sk_buff_data_t)precv_frame->u.hdr.rx_tail; -#endif skb->len = precv_frame->u.hdr.len; + skb_set_tail_pointer(skb, skb->len); if ((pattrib->tcpchk_valid == 1) && (pattrib->tcp_chkrpt == 1)) skb->ip_summed = CHECKSUM_UNNECESSARY; else -- cgit v1.2.1 From 3d037774b42ed677f699b1dce7d548d55f4e4c2b Mon Sep 17 00:00:00 2001 From: Pavankumar Kondeti Date: Fri, 7 Sep 2012 11:23:28 +0530 Subject: EHCI: Update qTD next pointer in QH overlay region during unlink There is a possibility of QH overlay region having reference to a stale qTD pointer during unlink. Consider an endpoint having two pending qTD before unlink process begins. The endpoint's QH queue looks like this. qTD1 --> qTD2 --> Dummy To unlink qTD2, QH is removed from asynchronous list and Asynchronous Advance Doorbell is programmed. The qTD1's next qTD pointer is set to qTD2'2 next qTD pointer and qTD2 is retired upon controller's doorbell interrupt. If QH's current qTD pointer points to qTD1, transfer overlay region still have reference to qTD2. But qtD2 is just unlinked and freed. This may cause EHCI system error. Fix this by updating qTD next pointer in QH overlay region with the qTD next pointer of the current qTD. Signed-off-by: Pavankumar Kondeti Acked-by: Alan Stern Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/ehci-q.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c index 9bc39ca460c8..4b66374bdc8e 100644 --- a/drivers/usb/host/ehci-q.c +++ b/drivers/usb/host/ehci-q.c @@ -128,9 +128,17 @@ qh_refresh (struct ehci_hcd *ehci, struct ehci_qh *qh) else { qtd = list_entry (qh->qtd_list.next, struct ehci_qtd, qtd_list); - /* first qtd may already be partially processed */ - if (cpu_to_hc32(ehci, qtd->qtd_dma) == qh->hw->hw_current) + /* + * first qtd may already be partially processed. + * If we come here during unlink, the QH overlay region + * might have reference to the just unlinked qtd. The + * qtd is updated in qh_completions(). Update the QH + * overlay here. + */ + if (cpu_to_hc32(ehci, qtd->qtd_dma) == qh->hw->hw_current) { + qh->hw->hw_qtd_next = qtd->hw_next; qtd = NULL; + } } if (qtd) -- cgit v1.2.1 From 0b0d7b62bed81a76dd2b3f12ba6a33eb144a1df6 Mon Sep 17 00:00:00 2001 From: Rob Clark Date: Wed, 5 Sep 2012 16:48:53 -0500 Subject: drm/omap: update for interlaced 'struct omap_video_timings' was updated w/ a 'bool interlaced'. Without a matching update in omap_connector, this field could have undefined values from the stack, which isn't quite ideal. Update the fxns to convert omapdss<->drm timings structs, and zero-init 'struct omap_video_timings' when it is declared on stack to avoid issues like this in the future. Signed-off-by: Rob Clark Reviewed-by: Sumit Semwal Signed-off-by: Greg Kroah-Hartman --- drivers/staging/omapdrm/omap_connector.c | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-) diff --git a/drivers/staging/omapdrm/omap_connector.c b/drivers/staging/omapdrm/omap_connector.c index 5e2856c0e0bb..5f4a89be3dda 100644 --- a/drivers/staging/omapdrm/omap_connector.c +++ b/drivers/staging/omapdrm/omap_connector.c @@ -48,13 +48,10 @@ static inline void copy_timings_omap_to_drm(struct drm_display_mode *mode, mode->vsync_end = mode->vsync_start + timings->vsw; mode->vtotal = mode->vsync_end + timings->vbp; - /* note: whether or not it is interlaced, +/- h/vsync, etc, - * which should be set in the mode flags, is not exposed in - * the omap_video_timings struct.. but hdmi driver tracks - * those separately so all we have to have to set the mode - * is the way to recover these timings values, and the - * omap_dss_driver would do the rest. - */ + mode->flags = 0; + + if (timings->interlace) + mode->flags |= DRM_MODE_FLAG_INTERLACE; } static inline void copy_timings_drm_to_omap(struct omap_video_timings *timings, @@ -71,6 +68,8 @@ static inline void copy_timings_drm_to_omap(struct omap_video_timings *timings, timings->vfp = mode->vsync_start - mode->vdisplay; timings->vsw = mode->vsync_end - mode->vsync_start; timings->vbp = mode->vtotal - mode->vsync_end; + + timings->interlace = !!(mode->flags & DRM_MODE_FLAG_INTERLACE); } static void omap_connector_dpms(struct drm_connector *connector, int mode) @@ -187,7 +186,7 @@ static int omap_connector_get_modes(struct drm_connector *connector) } } else { struct drm_display_mode *mode = drm_mode_create(dev); - struct omap_video_timings timings; + struct omap_video_timings timings = {0}; dssdrv->get_timings(dssdev, &timings); @@ -291,7 +290,7 @@ void omap_connector_mode_set(struct drm_connector *connector, struct omap_connector *omap_connector = to_omap_connector(connector); struct omap_dss_device *dssdev = omap_connector->dssdev; struct omap_dss_driver *dssdrv = dssdev->driver; - struct omap_video_timings timings; + struct omap_video_timings timings = {0}; copy_timings_drm_to_omap(&timings, mode); -- cgit v1.2.1 From 94254edc9c5b4e864767c97bfa0e4ccff2ecb5e5 Mon Sep 17 00:00:00 2001 From: Rob Clark Date: Fri, 7 Sep 2012 12:59:45 -0500 Subject: drm/omap: add more new timings fields Without these, DVI is broken. Signed-off-by: Rob Clark Signed-off-by: Greg Kroah-Hartman --- drivers/staging/omapdrm/omap_connector.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/drivers/staging/omapdrm/omap_connector.c b/drivers/staging/omapdrm/omap_connector.c index 5f4a89be3dda..55e9c8655850 100644 --- a/drivers/staging/omapdrm/omap_connector.c +++ b/drivers/staging/omapdrm/omap_connector.c @@ -52,6 +52,16 @@ static inline void copy_timings_omap_to_drm(struct drm_display_mode *mode, if (timings->interlace) mode->flags |= DRM_MODE_FLAG_INTERLACE; + + if (timings->hsync_level == OMAPDSS_SIG_ACTIVE_HIGH) + mode->flags |= DRM_MODE_FLAG_PHSYNC; + else + mode->flags |= DRM_MODE_FLAG_NHSYNC; + + if (timings->vsync_level == OMAPDSS_SIG_ACTIVE_HIGH) + mode->flags |= DRM_MODE_FLAG_PVSYNC; + else + mode->flags |= DRM_MODE_FLAG_NVSYNC; } static inline void copy_timings_drm_to_omap(struct omap_video_timings *timings, @@ -70,6 +80,20 @@ static inline void copy_timings_drm_to_omap(struct omap_video_timings *timings, timings->vbp = mode->vtotal - mode->vsync_end; timings->interlace = !!(mode->flags & DRM_MODE_FLAG_INTERLACE); + + if (mode->flags & DRM_MODE_FLAG_PHSYNC) + timings->hsync_level = OMAPDSS_SIG_ACTIVE_HIGH; + else + timings->hsync_level = OMAPDSS_SIG_ACTIVE_LOW; + + if (mode->flags & DRM_MODE_FLAG_PVSYNC) + timings->vsync_level = OMAPDSS_SIG_ACTIVE_HIGH; + else + timings->vsync_level = OMAPDSS_SIG_ACTIVE_LOW; + + timings->data_pclk_edge = OMAPDSS_DRIVE_SIG_RISING_EDGE; + timings->de_level = OMAPDSS_SIG_ACTIVE_HIGH; + timings->sync_pclk_edge = OMAPDSS_DRIVE_SIG_OPPOSITE_EDGES; } static void omap_connector_dpms(struct drm_connector *connector, int mode) -- cgit v1.2.1 From 6895f97e15895625e03c95df904d92befdac7118 Mon Sep 17 00:00:00 2001 From: James Hogan Date: Thu, 6 Sep 2012 22:11:25 +0100 Subject: kbuild: add symbol prefix arg to kallsyms Commit 1f2bfbd00e466ff3489b2ca5cc75b1cccd14c123 ("kbuild: link of vmlinux moved to a script") introduced in v3.5-rc1 broke kallsyms on architectures which have symbol prefixes. The --symbol-prefix argument used to be added to the KALLSYMS command line from the architecture Makefile, however this isn't picked up by the new scripts/link-vmlinux.sh. This resulted in symbols like kallsyms_addresses being added which weren't correctly overriding the weak symbols such as _kallsyms_addresses. These could then trigger BUG_ONs in kallsyms code. This is fixed by removing the KALLSYMS addition from the architecture Makefile, and using CONFIG_SYMBOL_PREFIX in the link-vmlinux.sh script to determine whether to add the --symbol-prefix argument. Signed-off-by: James Hogan Signed-off-by: Bob Liu --- arch/blackfin/Makefile | 1 - scripts/link-vmlinux.sh | 7 ++++++- 2 files changed, 6 insertions(+), 2 deletions(-) diff --git a/arch/blackfin/Makefile b/arch/blackfin/Makefile index d3d7e64ca96d..66cf00095b84 100644 --- a/arch/blackfin/Makefile +++ b/arch/blackfin/Makefile @@ -20,7 +20,6 @@ endif KBUILD_AFLAGS += $(call cc-option,-mno-fdpic) KBUILD_CFLAGS_MODULE += -mlong-calls LDFLAGS += -m elf32bfin -KALLSYMS += --symbol-prefix=_ KBUILD_DEFCONFIG := BF537-STAMP_defconfig diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh index 4629038c9e5a..df48dda8a2da 100644 --- a/scripts/link-vmlinux.sh +++ b/scripts/link-vmlinux.sh @@ -74,8 +74,13 @@ kallsyms() info KSYM ${2} local kallsymopt; + if [ -n "${CONFIG_SYMBOL_PREFIX}" ]; then + kallsymopt="${kallsymopt} \ + --symbol-prefix=${CONFIG_SYMBOL_PREFIX}" + fi + if [ -n "${CONFIG_KALLSYMS_ALL}" ]; then - kallsymopt=--all-symbols + kallsymopt="${kallsymopt} --all-symbols" fi local aflags="${KBUILD_AFLAGS} ${KBUILD_AFLAGS_KERNEL} \ -- cgit v1.2.1 From 9b2f4cb65f7083cde86553cd56d6c2878e04932a Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Tue, 11 Sep 2012 12:05:45 +0800 Subject: crypto: authenc - Fix crash with zero-length assoc data The authenc code doesn't deal with zero-length associated data correctly and ends up constructing a zero-length sg entry which causes a crash when it's fed into the crypto system. This patch fixes this by avoiding the code-path that triggers the SG construction if we have no associated data. This isn't the most optimal fix as it means that we'll end up using the fallback code-path even when we could still execute the digest function. However, this isn't a big deal as nobody but the test path would supply zero-length associated data. Reported-by: Romain Francoise Signed-off-by: Herbert Xu Tested-by: Romain Francoise --- crypto/authenc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/crypto/authenc.c b/crypto/authenc.c index 5ef7ba6b6a76..d0583a4489e6 100644 --- a/crypto/authenc.c +++ b/crypto/authenc.c @@ -336,7 +336,7 @@ static int crypto_authenc_genicv(struct aead_request *req, u8 *iv, cryptlen += ivsize; } - if (sg_is_last(assoc)) { + if (req->assoclen && sg_is_last(assoc)) { authenc_ahash_fn = crypto_authenc_ahash; sg_init_table(asg, 2); sg_set_page(asg, sg_page(assoc), assoc->length, assoc->offset); @@ -490,7 +490,7 @@ static int crypto_authenc_iverify(struct aead_request *req, u8 *iv, cryptlen += ivsize; } - if (sg_is_last(assoc)) { + if (req->assoclen && sg_is_last(assoc)) { authenc_ahash_fn = crypto_authenc_ahash; sg_init_table(asg, 2); sg_set_page(asg, sg_page(assoc), assoc->length, assoc->offset); -- cgit v1.2.1 From b48d6f8bed430922f78f648d1f73f7c1591e472c Mon Sep 17 00:00:00 2001 From: Pierre Sauter Date: Mon, 10 Sep 2012 07:02:59 +0000 Subject: net: qmi_wwan: fix Gobi device probing for un2430 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit HP un2430 is a Gobi 3000 device. It was mistakenly treated as Gobi 1000 in patch b9f90eb2740203ff2592efe640409ad48335d1c2. I own this device and qmi_wwan works again with this fix. Signed-off-by: Pierre Sauter Acked-by: Bjørn Mork Signed-off-by: David S. Miller --- drivers/net/usb/qmi_wwan.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c index adfab3fc5478..17b8f3e37687 100644 --- a/drivers/net/usb/qmi_wwan.c +++ b/drivers/net/usb/qmi_wwan.c @@ -398,7 +398,6 @@ static const struct usb_device_id products[] = { /* 4. Gobi 1000 devices */ {QMI_GOBI1K_DEVICE(0x05c6, 0x9212)}, /* Acer Gobi Modem Device */ {QMI_GOBI1K_DEVICE(0x03f0, 0x1f1d)}, /* HP un2400 Gobi Modem Device */ - {QMI_GOBI1K_DEVICE(0x03f0, 0x371d)}, /* HP un2430 Mobile Broadband Module */ {QMI_GOBI1K_DEVICE(0x04da, 0x250d)}, /* Panasonic Gobi Modem device */ {QMI_GOBI1K_DEVICE(0x413c, 0x8172)}, /* Dell Gobi Modem device */ {QMI_GOBI1K_DEVICE(0x1410, 0xa001)}, /* Novatel Gobi Modem device */ @@ -440,6 +439,7 @@ static const struct usb_device_id products[] = { {QMI_GOBI_DEVICE(0x16d8, 0x8002)}, /* CMDTech Gobi 2000 Modem device (VU922) */ {QMI_GOBI_DEVICE(0x05c6, 0x9205)}, /* Gobi 2000 Modem device */ {QMI_GOBI_DEVICE(0x1199, 0x9013)}, /* Sierra Wireless Gobi 3000 Modem device (MC8355) */ + {QMI_GOBI_DEVICE(0x03f0, 0x371d)}, /* HP un2430 Mobile Broadband Module */ {QMI_GOBI_DEVICE(0x1199, 0x9015)}, /* Sierra Wireless Gobi 3000 Modem device */ {QMI_GOBI_DEVICE(0x1199, 0x9019)}, /* Sierra Wireless Gobi 3000 Modem device */ {QMI_GOBI_DEVICE(0x1199, 0x901b)}, /* Sierra Wireless MC7770 */ -- cgit v1.2.1 From 912bfe76528c287bc4812521b8d53366954b39a5 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Sun, 19 Aug 2012 14:05:59 -0300 Subject: ARM: clk-imx25: Fix SSI clock registration SSI block has two types of clock: ipg: bus clock, the clock needed for accessing registers. per: peripheral clock, the clock needed for generating the bit rate. Currently SSI driver only supports slave mode and only need to handle the ipg clock, because the peripheral clock comes from the master codec. Only register the ipg clock and do not register the peripheral clock for ssi. Signed-off-by: Fabio Estevam Signed-off-by: Sascha Hauer Cc: stable@vger.kernel.org --- arch/arm/mach-imx/clk-imx25.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/arch/arm/mach-imx/clk-imx25.c b/arch/arm/mach-imx/clk-imx25.c index fdd8cc87c9fe..4431a62fff5b 100644 --- a/arch/arm/mach-imx/clk-imx25.c +++ b/arch/arm/mach-imx/clk-imx25.c @@ -222,10 +222,8 @@ int __init mx25_clocks_init(void) clk_register_clkdev(clk[lcdc_ipg], "ipg", "imx-fb.0"); clk_register_clkdev(clk[lcdc_ahb], "ahb", "imx-fb.0"); clk_register_clkdev(clk[wdt_ipg], NULL, "imx2-wdt.0"); - clk_register_clkdev(clk[ssi1_ipg_per], "per", "imx-ssi.0"); - clk_register_clkdev(clk[ssi1_ipg], "ipg", "imx-ssi.0"); - clk_register_clkdev(clk[ssi2_ipg_per], "per", "imx-ssi.1"); - clk_register_clkdev(clk[ssi2_ipg], "ipg", "imx-ssi.1"); + clk_register_clkdev(clk[ssi1_ipg], NULL, "imx-ssi.0"); + clk_register_clkdev(clk[ssi2_ipg], NULL, "imx-ssi.1"); clk_register_clkdev(clk[esdhc1_ipg_per], "per", "sdhci-esdhc-imx25.0"); clk_register_clkdev(clk[esdhc1_ipg], "ipg", "sdhci-esdhc-imx25.0"); clk_register_clkdev(clk[esdhc1_ahb], "ahb", "sdhci-esdhc-imx25.0"); -- cgit v1.2.1 From 48540058612786d365602f3324ed97f9071092de Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Mon, 20 Aug 2012 09:39:22 -0300 Subject: ARM: clk-imx35: Fix SSI clock registration SSI block has two types of clock: ipg: bus clock, the clock needed for accessing registers. per: peripheral clock, the clock needed for generating the bit rate. Currently SSI driver only supports slave mode and only need to handle the ipg clock, because the peripheral clock comes from the master codec. Only register the ipg clock and do not register the peripheral clock for ssi. Signed-off-by: Fabio Estevam Tested-by: Mark Brown Signed-off-by: Sascha Hauer Cc: stable@vger.kernel.org --- arch/arm/mach-imx/clk-imx35.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/arch/arm/mach-imx/clk-imx35.c b/arch/arm/mach-imx/clk-imx35.c index c6422fb10bae..65fb8bcd86cb 100644 --- a/arch/arm/mach-imx/clk-imx35.c +++ b/arch/arm/mach-imx/clk-imx35.c @@ -230,10 +230,8 @@ int __init mx35_clocks_init() clk_register_clkdev(clk[ipu_gate], NULL, "mx3_sdc_fb"); clk_register_clkdev(clk[owire_gate], NULL, "mxc_w1"); clk_register_clkdev(clk[sdma_gate], NULL, "imx35-sdma"); - clk_register_clkdev(clk[ipg], "ipg", "imx-ssi.0"); - clk_register_clkdev(clk[ssi1_div_post], "per", "imx-ssi.0"); - clk_register_clkdev(clk[ipg], "ipg", "imx-ssi.1"); - clk_register_clkdev(clk[ssi2_div_post], "per", "imx-ssi.1"); + clk_register_clkdev(clk[ssi1_gate], NULL, "imx-ssi.0"); + clk_register_clkdev(clk[ssi2_gate], NULL, "imx-ssi.1"); /* i.mx35 has the i.mx21 type uart */ clk_register_clkdev(clk[uart1_gate], "per", "imx21-uart.0"); clk_register_clkdev(clk[ipg], "ipg", "imx21-uart.0"); -- cgit v1.2.1 From 81cb324675eec592ab8f3038f980c074fbf7fb9b Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Tue, 11 Sep 2012 14:12:43 +0300 Subject: ALSA: compress_core: fix open flags test in snd_compr_open() O_RDONLY is zero so the original test (f->f_flags & O_RDONLY) is always false and it will never do compress capture. The test for O_WRONLY is also slightly off. The original test would consider "->flags = (O_WRONLY | O_RDWR)" as write only instead of rejecting it as invalid. I've also removed the pr_err() because that could flood dmesg. Signed-off-by: Dan Carpenter Signed-off-by: Takashi Iwai --- sound/core/compress_offload.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/sound/core/compress_offload.c b/sound/core/compress_offload.c index ec2118d0e27a..eb60cb8dbb8a 100644 --- a/sound/core/compress_offload.c +++ b/sound/core/compress_offload.c @@ -80,14 +80,12 @@ static int snd_compr_open(struct inode *inode, struct file *f) int maj = imajor(inode); int ret; - if (f->f_flags & O_WRONLY) + if ((f->f_flags & O_ACCMODE) == O_WRONLY) dirn = SND_COMPRESS_PLAYBACK; - else if (f->f_flags & O_RDONLY) + else if ((f->f_flags & O_ACCMODE) == O_RDONLY) dirn = SND_COMPRESS_CAPTURE; - else { - pr_err("invalid direction\n"); + else return -EINVAL; - } if (maj == snd_major) compr = snd_lookup_minor_data(iminor(inode), -- cgit v1.2.1 From c302d6133c094bda7a7ce94eac5b50c018a7ca7b Mon Sep 17 00:00:00 2001 From: Catalin Iacob Date: Sun, 9 Sep 2012 21:41:11 +0000 Subject: ALSA: hda_intel: add position_fix quirk for Asus K53E Commit c20c5a841cbe47f5b7812b57bd25397497e5fbc0 changed some chipsets to default to POS_FIX_COMBO so they now use POS_FIX_LPIB instead of POS_FIX_POSBUF. Since then I've been getting artifacts on playback, including repeated sounds on my Asus laptop. My hardware is Cougar Point which the commit log of c20c5a841cbe47f5b7812b57bd25397497e5fbc0 mentions as tested so POS_FIX_COMBO probably works in general but apparently it doesn't on Asus K53E therefore the need for the quirk. Signed-off-by: Catalin Iacob Signed-off-by: Takashi Iwai --- sound/pci/hda/hda_intel.c | 1 + 1 file changed, 1 insertion(+) diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index 60882c62f180..228cdf93fa29 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -2701,6 +2701,7 @@ static struct snd_pci_quirk position_fix_list[] __devinitdata = { SND_PCI_QUIRK(0x1043, 0x813d, "ASUS P5AD2", POS_FIX_LPIB), SND_PCI_QUIRK(0x1043, 0x81b3, "ASUS", POS_FIX_LPIB), SND_PCI_QUIRK(0x1043, 0x81e7, "ASUS M2V", POS_FIX_LPIB), + SND_PCI_QUIRK(0x1043, 0x1b43, "ASUS K53E", POS_FIX_POSBUF), SND_PCI_QUIRK(0x104d, 0x9069, "Sony VPCS11V9E", POS_FIX_LPIB), SND_PCI_QUIRK(0x10de, 0xcb89, "Macbook Pro 7,1", POS_FIX_LPIB), SND_PCI_QUIRK(0x1297, 0x3166, "Shuttle", POS_FIX_LPIB), -- cgit v1.2.1 From 75c5da279e06577190abba52cabf0dc2a56edb97 Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Mon, 10 Sep 2012 21:58:29 +0200 Subject: drm/i915: fix up the IBX transcoder B check This has been added in commit de9a35abb3b343a25065449234e47a76c4f3454a Author: Daniel Vetter Date: Tue Jun 5 11:03:40 2012 +0200 drm/i915: assert that the IBX port transcoder select w/a is implemented Unfortunately I've failed to notice that these checks are not just called for the port that is about to be disabled, but for all (which makes sense for an assert ...), and the WARN missfired when disabling another pipe than the one with the dp port. Hence also check whether the port is actually disabled. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=54688 Reviewed-by: Paulo Zanoni Signed-Off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_display.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 2dfa6cf4886b..bc2ad348e5d8 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -1376,7 +1376,8 @@ static void assert_pch_dp_disabled(struct drm_i915_private *dev_priv, "PCH DP (0x%08x) enabled on transcoder %c, should be disabled\n", reg, pipe_name(pipe)); - WARN(HAS_PCH_IBX(dev_priv->dev) && (val & SDVO_PIPE_B_SELECT), + WARN(HAS_PCH_IBX(dev_priv->dev) && (val & DP_PORT_EN) == 0 + && (val & DP_PIPEB_SELECT), "IBX PCH dp port still using transcoder B\n"); } @@ -1388,7 +1389,8 @@ static void assert_pch_hdmi_disabled(struct drm_i915_private *dev_priv, "PCH HDMI (0x%08x) enabled on transcoder %c, should be disabled\n", reg, pipe_name(pipe)); - WARN(HAS_PCH_IBX(dev_priv->dev) && (val & SDVO_PIPE_B_SELECT), + WARN(HAS_PCH_IBX(dev_priv->dev) && (val & PORT_ENABLE) == 0 + && (val & SDVO_PIPE_B_SELECT), "IBX PCH hdmi port still using transcoder B\n"); } -- cgit v1.2.1 From ba9edaa468869a8cea242a411066b0f490751798 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B8rn=20Mork?= Date: Tue, 11 Sep 2012 09:40:31 +0200 Subject: USB: option: replace ZTE K5006-Z entry with vendor class rule MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fix the ZTE K5006-Z entry so that it actually matches anything commit f1b5c997 USB: option: add ZTE K5006-Z added a device specific entry assuming that the device would use class/subclass/proto == ff/ff/ff like other ZTE devices. It turns out that ZTE has started using vendor specific subclass and protocol codes: T: Bus=01 Lev=01 Prnt=01 Port=03 Cnt=01 Dev#= 4 Spd=480 MxCh= 0 D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 P: Vendor=19d2 ProdID=1018 Rev= 0.00 S: Manufacturer=ZTE,Incorporated S: Product=ZTE LTE Technologies MSM S: SerialNumber=MF821Vxxxxxxx C:* #Ifs= 5 Cfg#= 1 Atr=c0 MxPwr=500mA I:* If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=86 Prot=10 Driver=(none) E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms I:* If#= 1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=02 Prot=05 Driver=(none) E: Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms I:* If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=02 Prot=01 Driver=(none) E: Ad=83(I) Atr=03(Int.) MxPS= 64 Ivl=2ms E: Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms I:* If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=06 Prot=00 Driver=qmi_wwan E: Ad=85(I) Atr=03(Int.) MxPS= 64 Ivl=2ms E: Ad=86(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms I:* If#= 4 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage E: Ad=05(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=87(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms We do not have any information on how ZTE intend to use these codes, but let us assume for now that the 3 sets matching serial functions in the K5006-Z always will identify a serial function in a ZTE device. Cc: Thomas Schäfer Cc: stable Signed-off-by: Bjørn Mork Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/option.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index cc40f47ecea1..5ce88d1bc6f1 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -886,8 +886,6 @@ static const struct usb_device_id option_ids[] = { { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1010, 0xff, 0xff, 0xff), .driver_info = (kernel_ulong_t)&net_intf4_blacklist }, { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1012, 0xff, 0xff, 0xff) }, - { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1018, 0xff, 0xff, 0xff), - .driver_info = (kernel_ulong_t)&net_intf3_blacklist }, { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1057, 0xff, 0xff, 0xff) }, { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1058, 0xff, 0xff, 0xff) }, { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1059, 0xff, 0xff, 0xff) }, @@ -1092,6 +1090,10 @@ static const struct usb_device_id option_ids[] = { .driver_info = (kernel_ulong_t)&zte_ad3812_z_blacklist }, { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_MC2716, 0xff, 0xff, 0xff), .driver_info = (kernel_ulong_t)&zte_mc2716_z_blacklist }, + { USB_VENDOR_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff, 0x02, 0x01) }, + { USB_VENDOR_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff, 0x02, 0x05) }, + { USB_VENDOR_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff, 0x86, 0x10) }, + { USB_DEVICE(BENQ_VENDOR_ID, BENQ_PRODUCT_H10) }, { USB_DEVICE(DLINK_VENDOR_ID, DLINK_PRODUCT_DWM_652) }, { USB_DEVICE(ALINK_VENDOR_ID, DLINK_PRODUCT_DWM_652_U5) }, /* Yes, ALINK_VENDOR_ID */ -- cgit v1.2.1 From 7b281ee026552f10862b617a2a51acf49c829554 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Tue, 11 Sep 2012 15:38:32 -0400 Subject: NFS: fsync() must exit with an error if page writeback failed We need to ensure that if the call to filemap_write_and_wait_range() fails, then we report that error back to the application. Signed-off-by: Trond Myklebust --- fs/nfs/file.c | 4 +++- fs/nfs/nfs4file.c | 4 +++- 2 files changed, 6 insertions(+), 2 deletions(-) diff --git a/fs/nfs/file.c b/fs/nfs/file.c index 75d6d0a3d32e..6a7fcab7ecb3 100644 --- a/fs/nfs/file.c +++ b/fs/nfs/file.c @@ -287,10 +287,12 @@ nfs_file_fsync(struct file *file, loff_t start, loff_t end, int datasync) struct inode *inode = file->f_path.dentry->d_inode; ret = filemap_write_and_wait_range(inode->i_mapping, start, end); + if (ret != 0) + goto out; mutex_lock(&inode->i_mutex); ret = nfs_file_fsync_commit(file, start, end, datasync); mutex_unlock(&inode->i_mutex); - +out: return ret; } diff --git a/fs/nfs/nfs4file.c b/fs/nfs/nfs4file.c index acb65e7887f8..eb5eb8eef4d3 100644 --- a/fs/nfs/nfs4file.c +++ b/fs/nfs/nfs4file.c @@ -96,13 +96,15 @@ nfs4_file_fsync(struct file *file, loff_t start, loff_t end, int datasync) struct inode *inode = file->f_path.dentry->d_inode; ret = filemap_write_and_wait_range(inode->i_mapping, start, end); + if (ret != 0) + goto out; mutex_lock(&inode->i_mutex); ret = nfs_file_fsync_commit(file, start, end, datasync); if (!ret && !datasync) /* application has asked for meta-data sync */ ret = pnfs_layoutcommit_inode(inode, true); mutex_unlock(&inode->i_mutex); - +out: return ret; } -- cgit v1.2.1 From bdfc87f7d1e253e0a61e2fc6a75ea9d76f7fc03a Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Tue, 11 Sep 2012 13:11:12 +0000 Subject: net-sched: sch_cbq: avoid infinite loop Its possible to setup a bad cbq configuration leading to an infinite loop in cbq_classify() DEV_OUT=eth0 ICMP="match ip protocol 1 0xff" U32="protocol ip u32" DST="match ip dst" tc qdisc add dev $DEV_OUT root handle 1: cbq avpkt 1000 \ bandwidth 100mbit tc class add dev $DEV_OUT parent 1: classid 1:1 cbq \ rate 512kbit allot 1500 prio 5 bounded isolated tc filter add dev $DEV_OUT parent 1: prio 3 $U32 \ $ICMP $DST 192.168.3.234 flowid 1: Reported-by: Denys Fedoryschenko Tested-by: Denys Fedoryschenko Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- net/sched/sch_cbq.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/net/sched/sch_cbq.c b/net/sched/sch_cbq.c index 6aabd77d1cfd..564b9fc8efd3 100644 --- a/net/sched/sch_cbq.c +++ b/net/sched/sch_cbq.c @@ -250,10 +250,11 @@ cbq_classify(struct sk_buff *skb, struct Qdisc *sch, int *qerr) else if ((cl = defmap[res.classid & TC_PRIO_MAX]) == NULL) cl = defmap[TC_PRIO_BESTEFFORT]; - if (cl == NULL || cl->level >= head->level) + if (cl == NULL) goto fallback; } - + if (cl->level >= head->level) + goto fallback; #ifdef CONFIG_NET_CLS_ACT switch (result) { case TC_ACT_QUEUED: -- cgit v1.2.1 From 73d7c119255615a26070f9d6cdb722a166a29015 Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Tue, 19 Jun 2012 08:00:00 -0700 Subject: hwmon: (twl4030-madc-hwmon) Initialize uninitialized structure elements twl4030_madc_conversion uses do_avg and type structure elements of twl4030_madc_request. Initialize structure to avoid random operation. Fix for: Coverity CID 200794 Uninitialized scalar variable. Cc: Keerthy Cc: stable@vger.kernel.org Signed-off-by: Guenter Roeck Acked-by: Jean Delvare Acked-by: Keerthy --- drivers/hwmon/twl4030-madc-hwmon.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/hwmon/twl4030-madc-hwmon.c b/drivers/hwmon/twl4030-madc-hwmon.c index 0018c7dd0097..1a174f0a3cde 100644 --- a/drivers/hwmon/twl4030-madc-hwmon.c +++ b/drivers/hwmon/twl4030-madc-hwmon.c @@ -44,12 +44,13 @@ static ssize_t madc_read(struct device *dev, struct device_attribute *devattr, char *buf) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct twl4030_madc_request req; + struct twl4030_madc_request req = { + .channels = 1 << attr->index, + .method = TWL4030_MADC_SW2, + .type = TWL4030_MADC_WAIT, + }; long val; - req.channels = (1 << attr->index); - req.method = TWL4030_MADC_SW2; - req.func_cb = NULL; val = twl4030_madc_conversion(&req); if (val < 0) return val; -- cgit v1.2.1 From 080b98e9ab30734bda2f1b8b33cd55a4c4ef406a Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Tue, 11 Sep 2012 08:22:14 -0700 Subject: hwmon: (ina2xx) Fix word size register read and write operations The driver uses be16_to_cpu and cpu_to_be16 to convert data in SMBus word operations from chip to host byte order. However, the data passed from and to the SMBus word API functions is in host byte order, not in chip byte order. Conversion should therefore use swab16 instead of be16 to change the byte order. Replace driver internal word conversion functions with SMBus API functions to solve the problem. Signed-off-by: Guenter Roeck Cc: stable@vger.kernel.org # 3.5+ Acked-by: Jean Delvare --- drivers/hwmon/ina2xx.c | 30 +++++++++--------------------- 1 file changed, 9 insertions(+), 21 deletions(-) diff --git a/drivers/hwmon/ina2xx.c b/drivers/hwmon/ina2xx.c index 7f3f4a385729..602148299f68 100644 --- a/drivers/hwmon/ina2xx.c +++ b/drivers/hwmon/ina2xx.c @@ -69,22 +69,6 @@ struct ina2xx_data { u16 regs[INA2XX_MAX_REGISTERS]; }; -int ina2xx_read_word(struct i2c_client *client, int reg) -{ - int val = i2c_smbus_read_word_data(client, reg); - if (unlikely(val < 0)) { - dev_dbg(&client->dev, - "Failed to read register: %d\n", reg); - return val; - } - return be16_to_cpu(val); -} - -void ina2xx_write_word(struct i2c_client *client, int reg, int data) -{ - i2c_smbus_write_word_data(client, reg, cpu_to_be16(data)); -} - static struct ina2xx_data *ina2xx_update_device(struct device *dev) { struct i2c_client *client = to_i2c_client(dev); @@ -102,7 +86,7 @@ static struct ina2xx_data *ina2xx_update_device(struct device *dev) /* Read all registers */ for (i = 0; i < data->registers; i++) { - int rv = ina2xx_read_word(client, i); + int rv = i2c_smbus_read_word_swapped(client, i); if (rv < 0) { ret = ERR_PTR(rv); goto abort; @@ -279,22 +263,26 @@ static int ina2xx_probe(struct i2c_client *client, switch (data->kind) { case ina219: /* device configuration */ - ina2xx_write_word(client, INA2XX_CONFIG, INA219_CONFIG_DEFAULT); + i2c_smbus_write_word_swapped(client, INA2XX_CONFIG, + INA219_CONFIG_DEFAULT); /* set current LSB to 1mA, shunt is in uOhms */ /* (equation 13 in datasheet) */ - ina2xx_write_word(client, INA2XX_CALIBRATION, 40960000 / shunt); + i2c_smbus_write_word_swapped(client, INA2XX_CALIBRATION, + 40960000 / shunt); dev_info(&client->dev, "power monitor INA219 (Rshunt = %li uOhm)\n", shunt); data->registers = INA219_REGISTERS; break; case ina226: /* device configuration */ - ina2xx_write_word(client, INA2XX_CONFIG, INA226_CONFIG_DEFAULT); + i2c_smbus_write_word_swapped(client, INA2XX_CONFIG, + INA226_CONFIG_DEFAULT); /* set current LSB to 1mA, shunt is in uOhms */ /* (equation 1 in datasheet)*/ - ina2xx_write_word(client, INA2XX_CALIBRATION, 5120000 / shunt); + i2c_smbus_write_word_swapped(client, INA2XX_CALIBRATION, + 5120000 / shunt); dev_info(&client->dev, "power monitor INA226 (Rshunt = %li uOhm)\n", shunt); data->registers = INA226_REGISTERS; -- cgit v1.2.1 From 3737e2be505d872bf2b3c1cd4151b2d2b413d7b5 Mon Sep 17 00:00:00 2001 From: Matteo Frigo Date: Wed, 12 Sep 2012 10:12:06 -0400 Subject: ALSA: ice1724: Use linear scale for AK4396 volume control. The AK4396 DAC has a linear-scale attentuator, but sound/pci/ice1712/prodigy_hifi.c used a log scale instead, which is not quite right. This patch restores the correct scale, borrowing from the ak4396 code in sound/pci/oxygen/oxygen.c. Signed-off-by: Matteo Frigo Cc: Signed-off-by: Takashi Iwai --- sound/pci/ice1712/prodigy_hifi.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/sound/pci/ice1712/prodigy_hifi.c b/sound/pci/ice1712/prodigy_hifi.c index 764cc93dbca4..075d5aa1fee0 100644 --- a/sound/pci/ice1712/prodigy_hifi.c +++ b/sound/pci/ice1712/prodigy_hifi.c @@ -297,6 +297,7 @@ static int ak4396_dac_vol_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem } static const DECLARE_TLV_DB_SCALE(db_scale_wm_dac, -12700, 100, 1); +static const DECLARE_TLV_DB_LINEAR(ak4396_db_scale, TLV_DB_GAIN_MUTE, 0); static struct snd_kcontrol_new prodigy_hd2_controls[] __devinitdata = { { @@ -307,7 +308,7 @@ static struct snd_kcontrol_new prodigy_hd2_controls[] __devinitdata = { .info = ak4396_dac_vol_info, .get = ak4396_dac_vol_get, .put = ak4396_dac_vol_put, - .tlv = { .p = db_scale_wm_dac }, + .tlv = { .p = ak4396_db_scale }, }, }; -- cgit v1.2.1 From 16af511a666827eaf5802144f09e2fb7b0942c99 Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Wed, 12 Sep 2012 02:04:53 +0000 Subject: netfilter: log: Fix log-level processing auto75914331@hushmail.com reports that iptables does not correctly output the KERN_. $IPTABLES -A RULE_0_in -j LOG --log-level notice --log-prefix "DENY in: " result with linux 3.6-rc5 Sep 12 06:37:29 xxxxx kernel: <5>DENY in: IN=eth0 OUT= MAC=....... result with linux 3.5.3 and older: Sep 9 10:43:01 xxxxx kernel: DENY in: IN=eth0 OUT= MAC...... commit 04d2c8c83d0 ("printk: convert the format for KERN_ to a 2 byte pattern") updated the syslog header style but did not update netfilter uses. Do so. Use KERN_SOH and string concatenation instead of "%c" KERN_SOH_ASCII as suggested by Eric Dumazet. Signed-off-by: Joe Perches cc: auto75914331@hushmail.com Signed-off-by: Pablo Neira Ayuso --- net/bridge/netfilter/ebt_log.c | 2 +- net/netfilter/xt_LOG.c | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/net/bridge/netfilter/ebt_log.c b/net/bridge/netfilter/ebt_log.c index f88ee537fb2b..92de5e5f9db2 100644 --- a/net/bridge/netfilter/ebt_log.c +++ b/net/bridge/netfilter/ebt_log.c @@ -80,7 +80,7 @@ ebt_log_packet(u_int8_t pf, unsigned int hooknum, unsigned int bitmask; spin_lock_bh(&ebt_log_lock); - printk("<%c>%s IN=%s OUT=%s MAC source = %pM MAC dest = %pM proto = 0x%04x", + printk(KERN_SOH "%c%s IN=%s OUT=%s MAC source = %pM MAC dest = %pM proto = 0x%04x", '0' + loginfo->u.log.level, prefix, in ? in->name : "", out ? out->name : "", eth_hdr(skb)->h_source, eth_hdr(skb)->h_dest, diff --git a/net/netfilter/xt_LOG.c b/net/netfilter/xt_LOG.c index 2a4f9693e799..91e9af4d1f42 100644 --- a/net/netfilter/xt_LOG.c +++ b/net/netfilter/xt_LOG.c @@ -443,8 +443,8 @@ log_packet_common(struct sbuff *m, const struct nf_loginfo *loginfo, const char *prefix) { - sb_add(m, "<%d>%sIN=%s OUT=%s ", loginfo->u.log.level, - prefix, + sb_add(m, KERN_SOH "%c%sIN=%s OUT=%s ", + '0' + loginfo->u.log.level, prefix, in ? in->name : "", out ? out->name : ""); #ifdef CONFIG_BRIDGE_NETFILTER -- cgit v1.2.1 From b3aafe80c83097403d2b5edccfc440fac3d5f028 Mon Sep 17 00:00:00 2001 From: Roland Stigge Date: Wed, 8 Aug 2012 09:42:31 +0200 Subject: i2c: pnx: Fix bit definitions The I2C Control Register bits RFDAIE and RFFIE were mixed up. In addition to this fix, this patch adds the missing bit DRSIE for completeness. Signed-off-by: Roland Stigge Signed-off-by: Wolfram Sang --- drivers/i2c/busses/i2c-pnx.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/i2c/busses/i2c-pnx.c b/drivers/i2c/busses/i2c-pnx.c index 5d54416770b0..b36e21f9fd53 100644 --- a/drivers/i2c/busses/i2c-pnx.c +++ b/drivers/i2c/busses/i2c-pnx.c @@ -48,8 +48,9 @@ enum { mcntrl_afie = 0x00000002, mcntrl_naie = 0x00000004, mcntrl_drmie = 0x00000008, - mcntrl_daie = 0x00000020, - mcntrl_rffie = 0x00000040, + mcntrl_drsie = 0x00000010, + mcntrl_rffie = 0x00000020, + mcntrl_daie = 0x00000040, mcntrl_tffie = 0x00000080, mcntrl_reset = 0x00000100, mcntrl_cdbmode = 0x00000400, -- cgit v1.2.1 From c076ada4e4aaf45e1a31ad6de7c6cce36081e045 Mon Sep 17 00:00:00 2001 From: Roland Stigge Date: Wed, 8 Aug 2012 09:42:32 +0200 Subject: i2c: pnx: Fix read transactions of >= 2 bytes On transactions with n>=2 bytes, the controller actually wrongly clocks in n+1 bytes. This is caused by the (wrong) assumption that RFE in the Status Register is 1 iff there is no byte already ordered (via a dummy TX byte). This lead to the implementation of synchronized byte ordering, e.g.: Dummy-TX - RX - Dummy-TX - RX - ... But since RFE actually stays high after some Dummy-TX, it rather looks like: Dummy-TX - Dummy-TX - RX - Dummy-TX - RX - (RX) The last RX byte is clocked in by the bus controller, but ignored by the kernel when filling the userspace buffer. This patch fixes the issue by asking for RX via Dummy-TX asynchronously. Introducing a separate counter for TX bytes. Signed-off-by: Roland Stigge Signed-off-by: Wolfram Sang --- drivers/i2c/busses/i2c-pnx.c | 48 ++++++++++++++++++++++++++------------------ include/linux/i2c-pnx.h | 1 + 2 files changed, 29 insertions(+), 20 deletions(-) diff --git a/drivers/i2c/busses/i2c-pnx.c b/drivers/i2c/busses/i2c-pnx.c index b36e21f9fd53..8488bddfe465 100644 --- a/drivers/i2c/busses/i2c-pnx.c +++ b/drivers/i2c/busses/i2c-pnx.c @@ -291,31 +291,37 @@ static int i2c_pnx_master_rcv(struct i2c_pnx_algo_data *alg_data) * or we didn't 'ask' for it yet. */ if (ioread32(I2C_REG_STS(alg_data)) & mstatus_rfe) { - dev_dbg(&alg_data->adapter.dev, - "%s(): Write dummy data to fill Rx-fifo...\n", - __func__); + /* 'Asking' is done asynchronously, e.g. dummy TX of several + * bytes is done before the first actual RX arrives in FIFO. + * Therefore, ordered bytes (via TX) are counted separately. + */ + if (alg_data->mif.order) { + dev_dbg(&alg_data->adapter.dev, + "%s(): Write dummy data to fill Rx-fifo...\n", + __func__); - if (alg_data->mif.len == 1) { - /* Last byte, do not acknowledge next rcv. */ - val |= stop_bit; + if (alg_data->mif.order == 1) { + /* Last byte, do not acknowledge next rcv. */ + val |= stop_bit; + + /* + * Enable interrupt RFDAIE (data in Rx fifo), + * and disable DRMIE (need data for Tx) + */ + ctl = ioread32(I2C_REG_CTL(alg_data)); + ctl |= mcntrl_rffie | mcntrl_daie; + ctl &= ~mcntrl_drmie; + iowrite32(ctl, I2C_REG_CTL(alg_data)); + } /* - * Enable interrupt RFDAIE (data in Rx fifo), - * and disable DRMIE (need data for Tx) + * Now we'll 'ask' for data: + * For each byte we want to receive, we must + * write a (dummy) byte to the Tx-FIFO. */ - ctl = ioread32(I2C_REG_CTL(alg_data)); - ctl |= mcntrl_rffie | mcntrl_daie; - ctl &= ~mcntrl_drmie; - iowrite32(ctl, I2C_REG_CTL(alg_data)); + iowrite32(val, I2C_REG_TX(alg_data)); + alg_data->mif.order--; } - - /* - * Now we'll 'ask' for data: - * For each byte we want to receive, we must - * write a (dummy) byte to the Tx-FIFO. - */ - iowrite32(val, I2C_REG_TX(alg_data)); - return 0; } @@ -515,6 +521,7 @@ i2c_pnx_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num) alg_data->mif.buf = pmsg->buf; alg_data->mif.len = pmsg->len; + alg_data->mif.order = pmsg->len; alg_data->mif.mode = (pmsg->flags & I2C_M_RD) ? I2C_SMBUS_READ : I2C_SMBUS_WRITE; alg_data->mif.ret = 0; @@ -567,6 +574,7 @@ i2c_pnx_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num) /* Cleanup to be sure... */ alg_data->mif.buf = NULL; alg_data->mif.len = 0; + alg_data->mif.order = 0; dev_dbg(&alg_data->adapter.dev, "%s(): exiting, stat = %x\n", __func__, ioread32(I2C_REG_STS(alg_data))); diff --git a/include/linux/i2c-pnx.h b/include/linux/i2c-pnx.h index 1bc74afe7a35..49ed17fdf055 100644 --- a/include/linux/i2c-pnx.h +++ b/include/linux/i2c-pnx.h @@ -22,6 +22,7 @@ struct i2c_pnx_mif { struct timer_list timer; /* Timeout */ u8 * buf; /* Data buffer */ int len; /* Length of data buffer */ + int order; /* RX Bytes to order via TX */ }; struct i2c_pnx_algo_data { -- cgit v1.2.1 From 72ee734a6716aac5aaf336da70a811e308d2a84e Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Sat, 8 Sep 2012 17:28:06 +0200 Subject: i2c: mxs: correctly setup speed for non devicetree Commit cd4f2d4 (i2c: mxs: Set I2C timing registers for mxs-i2c) only covered the case for devicetree and made platform_data based boards bail out with -EINVAL. Correctly support the latter one, too. Signed-off-by: Wolfram Sang --- drivers/i2c/busses/i2c-mxs.c | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) diff --git a/drivers/i2c/busses/i2c-mxs.c b/drivers/i2c/busses/i2c-mxs.c index 088c5c1ed17d..51f05b8520ed 100644 --- a/drivers/i2c/busses/i2c-mxs.c +++ b/drivers/i2c/busses/i2c-mxs.c @@ -365,10 +365,6 @@ static int mxs_i2c_get_ofdata(struct mxs_i2c_dev *i2c) struct device_node *node = dev->of_node; int ret; - if (!node) - return -EINVAL; - - i2c->speed = &mxs_i2c_95kHz_config; ret = of_property_read_u32(node, "clock-frequency", &speed); if (ret) dev_warn(dev, "No I2C speed selected, using 100kHz\n"); @@ -419,10 +415,13 @@ static int __devinit mxs_i2c_probe(struct platform_device *pdev) return err; i2c->dev = dev; + i2c->speed = &mxs_i2c_95kHz_config; - err = mxs_i2c_get_ofdata(i2c); - if (err) - return err; + if (dev->of_node) { + err = mxs_i2c_get_ofdata(i2c); + if (err) + return err; + } platform_set_drvdata(pdev, i2c); -- cgit v1.2.1 From 7f67c38bdcb6d8bce02e10521fbf1618b586319f Mon Sep 17 00:00:00 2001 From: Michael Grzeschik Date: Wed, 12 Sep 2012 14:58:00 +0300 Subject: usb: chipidea: udc: fix setup of endpoint maxpacket size This patch changes the setup of the endpoint maxpacket size. All non control endpoints are initialized with an undefined ((unsigned short)~0) maxpacket size. The maxpacket size of Endpoint 0 will be kept at CTRL_PAYLOAD_MAX. Some gadget drivers check for the maxpacket size before they enable the endpoint, which leads to a wrong state in these drivers. Cc: stable Signed-off-by: Michael Grzeschik Acked-by: Felipe Balbi Signed-off-by: Marc Kleine-Budde Signed-off-by: Alexander Shishkin Signed-off-by: Greg Kroah-Hartman --- drivers/usb/chipidea/udc.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c index c7a032a4f0c5..7801a3f8be90 100644 --- a/drivers/usb/chipidea/udc.c +++ b/drivers/usb/chipidea/udc.c @@ -1455,7 +1455,12 @@ static int init_eps(struct ci13xxx *ci) mEp->ep.name = mEp->name; mEp->ep.ops = &usb_ep_ops; - mEp->ep.maxpacket = CTRL_PAYLOAD_MAX; + /* + * for ep0: maxP defined in desc, for other + * eps, maxP is set by epautoconfig() called + * by gadget layer + */ + mEp->ep.maxpacket = (unsigned short)~0; INIT_LIST_HEAD(&mEp->qh.queue); mEp->qh.ptr = dma_pool_alloc(ci->qh_pool, GFP_KERNEL, @@ -1475,6 +1480,7 @@ static int init_eps(struct ci13xxx *ci) else ci->ep0in = mEp; + mEp->ep.maxpacket = CTRL_PAYLOAD_MAX; continue; } -- cgit v1.2.1 From c0a48e6c75f2ac190d812bea5fc339696e434c2e Mon Sep 17 00:00:00 2001 From: Michael Grzeschik Date: Wed, 12 Sep 2012 14:58:01 +0300 Subject: usb: chipidea: udc: add pullup fuction, needed by the uvc gadget Add function to physicaly enable or disable of pullup connection on the USB-D+ line. The uvc gaget will fail, if this function is not implemented. Cc: stable Signed-off-by: Michael Grzeschik Acked-by: Felipe Balbi Signed-off-by: Marc Kleine-Budde Signed-off-by: Alexander Shishkin Signed-off-by: Greg Kroah-Hartman --- drivers/usb/chipidea/udc.c | 21 +++++++++++++++++---- 1 file changed, 17 insertions(+), 4 deletions(-) diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c index 7801a3f8be90..32ee8701e199 100644 --- a/drivers/usb/chipidea/udc.c +++ b/drivers/usb/chipidea/udc.c @@ -78,8 +78,7 @@ static inline int ep_to_bit(struct ci13xxx *ci, int n) } /** - * hw_device_state: enables/disables interrupts & starts/stops device (execute - * without interruption) + * hw_device_state: enables/disables interrupts (execute without interruption) * @dma: 0 => disable, !0 => enable and set dma engine * * This function returns an error code @@ -91,9 +90,7 @@ static int hw_device_state(struct ci13xxx *ci, u32 dma) /* interrupt, error, port change, reset, sleep/suspend */ hw_write(ci, OP_USBINTR, ~0, USBi_UI|USBi_UEI|USBi_PCI|USBi_URI|USBi_SLI); - hw_write(ci, OP_USBCMD, USBCMD_RS, USBCMD_RS); } else { - hw_write(ci, OP_USBCMD, USBCMD_RS, 0); hw_write(ci, OP_USBINTR, ~0, 0); } return 0; @@ -1420,6 +1417,21 @@ static int ci13xxx_vbus_draw(struct usb_gadget *_gadget, unsigned mA) return -ENOTSUPP; } +/* Change Data+ pullup status + * this func is used by usb_gadget_connect/disconnet + */ +static int ci13xxx_pullup(struct usb_gadget *_gadget, int is_on) +{ + struct ci13xxx *ci = container_of(_gadget, struct ci13xxx, gadget); + + if (is_on) + hw_write(ci, OP_USBCMD, USBCMD_RS, USBCMD_RS); + else + hw_write(ci, OP_USBCMD, USBCMD_RS, 0); + + return 0; +} + static int ci13xxx_start(struct usb_gadget *gadget, struct usb_gadget_driver *driver); static int ci13xxx_stop(struct usb_gadget *gadget, @@ -1432,6 +1444,7 @@ static int ci13xxx_stop(struct usb_gadget *gadget, static const struct usb_gadget_ops usb_gadget_ops = { .vbus_session = ci13xxx_vbus_session, .wakeup = ci13xxx_wakeup, + .pullup = ci13xxx_pullup, .vbus_draw = ci13xxx_vbus_draw, .udc_start = ci13xxx_start, .udc_stop = ci13xxx_stop, -- cgit v1.2.1 From c9d1f947a85e38b6dded469470c95ed62430cb3f Mon Sep 17 00:00:00 2001 From: Marc Kleine-Budde Date: Wed, 12 Sep 2012 14:58:02 +0300 Subject: usb: chipidea: udc: fix error path in udc_start() This patch fixes the error path of udc_start(). Now NULL is used to unset the peripheral with otg_set_peripheral(). Cc: stable Reviewed-by: Richard Zhao Signed-off-by: Marc Kleine-Budde Signed-off-by: Alexander Shishkin Signed-off-by: Greg Kroah-Hartman --- drivers/usb/chipidea/udc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c index 32ee8701e199..3a755e5160cf 100644 --- a/drivers/usb/chipidea/udc.c +++ b/drivers/usb/chipidea/udc.c @@ -1748,7 +1748,7 @@ static int udc_start(struct ci13xxx *ci) remove_trans: if (!IS_ERR_OR_NULL(ci->transceiver)) { - otg_set_peripheral(ci->transceiver->otg, &ci->gadget); + otg_set_peripheral(ci->transceiver->otg, NULL); if (ci->global_phy) usb_put_phy(ci->transceiver); } -- cgit v1.2.1 From ad6b1b97fe8504957d017cd6e4168cac8903d3f3 Mon Sep 17 00:00:00 2001 From: Marc Kleine-Budde Date: Wed, 12 Sep 2012 14:58:03 +0300 Subject: usb: chipidea: cleanup dma_pool if udc_start() fails If udc_start() fails the qh_pool dma-pool cannot be closed because it's still in use. This patch factors out the dma_pool_free() loop into destroy_eps() and calls it in the error path of udc_start(), too. Cc: stable Reviewed-by: Richard Zhao Signed-off-by: Marc Kleine-Budde Signed-off-by: Alexander Shishkin Signed-off-by: Greg Kroah-Hartman --- drivers/usb/chipidea/udc.c | 23 +++++++++++++++-------- 1 file changed, 15 insertions(+), 8 deletions(-) diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c index 3a755e5160cf..2d8b6092f80d 100644 --- a/drivers/usb/chipidea/udc.c +++ b/drivers/usb/chipidea/udc.c @@ -1503,6 +1503,17 @@ static int init_eps(struct ci13xxx *ci) return retval; } +static void destroy_eps(struct ci13xxx *ci) +{ + int i; + + for (i = 0; i < ci->hw_ep_max; i++) { + struct ci13xxx_ep *mEp = &ci->ci13xxx_ep[i]; + + dma_pool_free(ci->qh_pool, mEp->qh.ptr, mEp->qh.dma); + } +} + /** * ci13xxx_start: register a gadget driver * @gadget: our gadget @@ -1710,7 +1721,7 @@ static int udc_start(struct ci13xxx *ci) if (ci->platdata->flags & CI13XXX_REQUIRE_TRANSCEIVER) { if (ci->transceiver == NULL) { retval = -ENODEV; - goto free_pools; + goto destroy_eps; } } @@ -1761,6 +1772,8 @@ unreg_device: put_transceiver: if (!IS_ERR_OR_NULL(ci->transceiver) && ci->global_phy) usb_put_phy(ci->transceiver); +destroy_eps: + destroy_eps(ci); free_pools: dma_pool_destroy(ci->td_pool); free_qh_pool: @@ -1775,18 +1788,12 @@ free_qh_pool: */ static void udc_stop(struct ci13xxx *ci) { - int i; - if (ci == NULL) return; usb_del_gadget_udc(&ci->gadget); - for (i = 0; i < ci->hw_ep_max; i++) { - struct ci13xxx_ep *mEp = &ci->ci13xxx_ep[i]; - - dma_pool_free(ci->qh_pool, mEp->qh.ptr, mEp->qh.dma); - } + destroy_eps(ci); dma_pool_destroy(ci->td_pool); dma_pool_destroy(ci->qh_pool); -- cgit v1.2.1 From db89960e50f45274c07dc60926b5a49489b8a7a0 Mon Sep 17 00:00:00 2001 From: Michael Grzeschik Date: Wed, 12 Sep 2012 14:58:04 +0300 Subject: usb: chipidea: udc: don't stall endpoint if request list is empty in isr_tr_complete_low When attaching an imx28 or imx53 in USB gadget mode to a Windows host and starting a rndis connection we see this message every 4-10 seconds: g_ether gadget: high speed config #2: RNDIS Analysis shows that each time this message is printed, the rndis connection is re-establish due to a reset because of a stalled endpoint (ep 0, dir 1). The endpoint is stalled because the reqeust complete bit on that endpoint is set, but in isr_tr_complete_low() the endpoint request list (mEp->qh.queue) is empty. This patch removed this check, because the code doesn't take the following situation into account: The loop over all endpoints in isr_tr_complete_handler() will call ep_nuke() on both ep0/dir0 and ep/dir1 in the first loop. Pending reqeusts will be flushed and completed here. There seems to be a race condition, the request is nuked, but the request complete bit will be set, too. The subsequent check (in ep0/dir1's loop cycle) for endpoint request list (mEp->qh.queue) empty will fail. Both other mainline chipidea drivers (mv_udc_core.c and fsl_udc_core.c) don't have this check. Cc: stable Signed-off-by: Michael Grzeschik Signed-off-by: Marc Kleine-Budde Signed-off-by: Alexander Shishkin Signed-off-by: Greg Kroah-Hartman --- drivers/usb/chipidea/udc.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c index 2d8b6092f80d..d214448b677e 100644 --- a/drivers/usb/chipidea/udc.c +++ b/drivers/usb/chipidea/udc.c @@ -771,10 +771,7 @@ __acquires(mEp->lock) { struct ci13xxx_req *mReq, *mReqTemp; struct ci13xxx_ep *mEpTemp = mEp; - int uninitialized_var(retval); - - if (list_empty(&mEp->qh.queue)) - return -EINVAL; + int retval = 0; list_for_each_entry_safe(mReq, mReqTemp, &mEp->qh.queue, queue) { -- cgit v1.2.1 From bc01637a80f5b670bd70a0279d3f93fa8de1c96d Mon Sep 17 00:00:00 2001 From: Dmitry Kasatkin Date: Wed, 12 Sep 2012 13:26:55 +0300 Subject: digsig: add hash size comparision on signature verification When pkcs_1_v1_5_decode_emsa() returns without error and hash sizes do not match, hash comparision is not done and digsig_verify_rsa() returns no error. This is a bug and this patch fixes it. The bug was introduced in v3.3 by commit b35e286a640f ("lib/digsig: pkcs_1_v1_5_decode_emsa cleanup"). Cc: stable@vger.kernel.org Signed-off-by: Dmitry Kasatkin Signed-off-by: Linus Torvalds --- lib/digsig.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/lib/digsig.c b/lib/digsig.c index 286d558033e2..8c0e62975c88 100644 --- a/lib/digsig.c +++ b/lib/digsig.c @@ -163,9 +163,11 @@ static int digsig_verify_rsa(struct key *key, memcpy(out1 + head, p, l); err = pkcs_1_v1_5_decode_emsa(out1, len, mblen, out2, &len); + if (err) + goto err; - if (!err && len == hlen) - err = memcmp(out2, h, hlen); + if (len != hlen || memcmp(out2, h, hlen)) + err = -EINVAL; err: mpi_free(in); -- cgit v1.2.1 From 26df641eac05abe1a3276eea441359b4d1120816 Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Wed, 12 Sep 2012 10:05:04 +0000 Subject: gma500: Fix regression on Oaktrail devices The register map patches didn't set one value for the GMA600 which means the Fujitsu Q550 dies on boot with the GMA500 driver enabled. Add the map entry so we don't read from the device MMIO + 0 by mistake. Signed-off-by: Alan Cox Cc: Horses Signed-off-by: Dave Airlie --- drivers/gpu/drm/gma500/oaktrail_device.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/gma500/oaktrail_device.c b/drivers/gpu/drm/gma500/oaktrail_device.c index 0f9b7db80f6b..cf49ba5a54bf 100644 --- a/drivers/gpu/drm/gma500/oaktrail_device.c +++ b/drivers/gpu/drm/gma500/oaktrail_device.c @@ -476,6 +476,7 @@ static const struct psb_offset oaktrail_regmap[2] = { .pos = DSPAPOS, .surf = DSPASURF, .addr = MRST_DSPABASE, + .base = MRST_DSPABASE, .status = PIPEASTAT, .linoff = DSPALINOFF, .tileoff = DSPATILEOFF, @@ -499,6 +500,7 @@ static const struct psb_offset oaktrail_regmap[2] = { .pos = DSPBPOS, .surf = DSPBSURF, .addr = DSPBBASE, + .base = DSPBBASE, .status = PIPEBSTAT, .linoff = DSPBLINOFF, .tileoff = DSPBTILEOFF, -- cgit v1.2.1 From 5e1782d224c79b26ab7d5c31e3f87657000714fb Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Tue, 28 Aug 2012 01:53:54 +0000 Subject: vmwgfx: add dumb ioctl support Testing and works with the -modesetting driver, Reviewed-by: Jakob Bornecrantz Cc: stable@vger.kernel.org Signed-off-by: Dave Airlie --- drivers/gpu/drm/vmwgfx/vmwgfx_drv.c | 5 +++ drivers/gpu/drm/vmwgfx/vmwgfx_drv.h | 10 +++++ drivers/gpu/drm/vmwgfx/vmwgfx_resource.c | 73 ++++++++++++++++++++++++++++++++ 3 files changed, 88 insertions(+) diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c index 33bfc2033009..ba2c35dbf10e 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c @@ -1155,6 +1155,11 @@ static struct drm_driver driver = { .open = vmw_driver_open, .preclose = vmw_preclose, .postclose = vmw_postclose, + + .dumb_create = vmw_dumb_create, + .dumb_map_offset = vmw_dumb_map_offset, + .dumb_destroy = vmw_dumb_destroy, + .fops = &vmwgfx_driver_fops, .name = VMWGFX_DRIVER_NAME, .desc = VMWGFX_DRIVER_DESC, diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h index d0f2c079ee27..29c984ff7f23 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h @@ -645,6 +645,16 @@ int vmw_kms_readback(struct vmw_private *dev_priv, int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); +int vmw_dumb_create(struct drm_file *file_priv, + struct drm_device *dev, + struct drm_mode_create_dumb *args); + +int vmw_dumb_map_offset(struct drm_file *file_priv, + struct drm_device *dev, uint32_t handle, + uint64_t *offset); +int vmw_dumb_destroy(struct drm_file *file_priv, + struct drm_device *dev, + uint32_t handle); /** * Overlay control - vmwgfx_overlay.c */ diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c index 22bf9a21ec71..2c6ffe0e2c07 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c @@ -1917,3 +1917,76 @@ err_ref: vmw_resource_unreference(&res); return ret; } + + +int vmw_dumb_create(struct drm_file *file_priv, + struct drm_device *dev, + struct drm_mode_create_dumb *args) +{ + struct vmw_private *dev_priv = vmw_priv(dev); + struct vmw_master *vmaster = vmw_master(file_priv->master); + struct vmw_user_dma_buffer *vmw_user_bo; + struct ttm_buffer_object *tmp; + int ret; + + args->pitch = args->width * ((args->bpp + 7) / 8); + args->size = args->pitch * args->height; + + vmw_user_bo = kzalloc(sizeof(*vmw_user_bo), GFP_KERNEL); + if (vmw_user_bo == NULL) + return -ENOMEM; + + ret = ttm_read_lock(&vmaster->lock, true); + if (ret != 0) { + kfree(vmw_user_bo); + return ret; + } + + ret = vmw_dmabuf_init(dev_priv, &vmw_user_bo->dma, args->size, + &vmw_vram_sys_placement, true, + &vmw_user_dmabuf_destroy); + if (ret != 0) + goto out_no_dmabuf; + + tmp = ttm_bo_reference(&vmw_user_bo->dma.base); + ret = ttm_base_object_init(vmw_fpriv(file_priv)->tfile, + &vmw_user_bo->base, + false, + ttm_buffer_type, + &vmw_user_dmabuf_release, NULL); + if (unlikely(ret != 0)) + goto out_no_base_object; + + args->handle = vmw_user_bo->base.hash.key; + +out_no_base_object: + ttm_bo_unref(&tmp); +out_no_dmabuf: + ttm_read_unlock(&vmaster->lock); + return ret; +} + +int vmw_dumb_map_offset(struct drm_file *file_priv, + struct drm_device *dev, uint32_t handle, + uint64_t *offset) +{ + struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; + struct vmw_dma_buffer *out_buf; + int ret; + + ret = vmw_user_dmabuf_lookup(tfile, handle, &out_buf); + if (ret != 0) + return -EINVAL; + + *offset = out_buf->base.addr_space_offset; + vmw_dmabuf_unreference(&out_buf); + return 0; +} + +int vmw_dumb_destroy(struct drm_file *file_priv, + struct drm_device *dev, + uint32_t handle) +{ + return ttm_ref_object_base_unref(vmw_fpriv(file_priv)->tfile, + handle, TTM_REF_USAGE); +} -- cgit v1.2.1 From 7ba073cdd8b770f990916a7b506d7b31fadb70a5 Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Mon, 6 Aug 2012 12:16:16 +0530 Subject: drm/exynos: Remove redundant check in exynos_hdmi.c file devm_request_and_ioremap function checks the validity of the pointer returned by platform_get_resource. Hence an additional check in the probe function is not necessary. Signed-off-by: Sachin Kamat Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park --- drivers/gpu/drm/exynos/exynos_hdmi.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c index 409e2ec1207c..bb504cbd7898 100644 --- a/drivers/gpu/drm/exynos/exynos_hdmi.c +++ b/drivers/gpu/drm/exynos/exynos_hdmi.c @@ -2312,11 +2312,6 @@ static int __devinit hdmi_probe(struct platform_device *pdev) } res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) { - DRM_ERROR("failed to find registers\n"); - ret = -ENOENT; - goto err_resource; - } hdata->regs = devm_request_and_ioremap(&pdev->dev, res); if (!hdata->regs) { -- cgit v1.2.1 From 16e197417de3414af7c183f7f4abfa2c7e37f297 Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Mon, 6 Aug 2012 12:16:17 +0530 Subject: drm/exynos: Remove redundant check in exynos_drm_fimd.c file devm_request_and_ioremap function checks the validity of the pointer returned by platform_get_resource. Hence an additional check in the probe function is not necessary. Signed-off-by: Sachin Kamat Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park --- drivers/gpu/drm/exynos/exynos_drm_fimd.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimd.c b/drivers/gpu/drm/exynos/exynos_drm_fimd.c index a68d2b313f03..b19cd93e7047 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_fimd.c +++ b/drivers/gpu/drm/exynos/exynos_drm_fimd.c @@ -831,11 +831,6 @@ static int __devinit fimd_probe(struct platform_device *pdev) } res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) { - dev_err(dev, "failed to find registers\n"); - ret = -ENOENT; - goto err_clk; - } ctx->regs = devm_request_and_ioremap(&pdev->dev, res); if (!ctx->regs) { -- cgit v1.2.1 From 59848db5055765a5d012ad7c428124eca1fcc625 Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Mon, 6 Aug 2012 12:16:18 +0530 Subject: drm/exynos: Use devm_kzalloc in exynos_drm_vidi.c file devm_kzalloc is a device managed function and makes freeing and error handling simpler. Signed-off-by: Sachin Kamat Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park --- drivers/gpu/drm/exynos/exynos_drm_vidi.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/gpu/drm/exynos/exynos_drm_vidi.c b/drivers/gpu/drm/exynos/exynos_drm_vidi.c index bb1550c4dd57..537027a74fd5 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_vidi.c +++ b/drivers/gpu/drm/exynos/exynos_drm_vidi.c @@ -633,7 +633,7 @@ static int __devinit vidi_probe(struct platform_device *pdev) DRM_DEBUG_KMS("%s\n", __FILE__); - ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); + ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL); if (!ctx) return -ENOMEM; @@ -673,8 +673,6 @@ static int __devexit vidi_remove(struct platform_device *pdev) ctx->raw_edid = NULL; } - kfree(ctx); - return 0; } -- cgit v1.2.1 From ae18294018c7cf098777a33086073321477f723f Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Mon, 6 Aug 2012 12:16:19 +0530 Subject: drm/exynos: Use devm_kzalloc in exynos_drm_hdmi.c file devm_kzalloc is a device managed function and makes freeing and error handling simpler. Signed-off-by: Sachin Kamat Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park --- drivers/gpu/drm/exynos/exynos_drm_hdmi.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/gpu/drm/exynos/exynos_drm_hdmi.c b/drivers/gpu/drm/exynos/exynos_drm_hdmi.c index 8ffcdf8b9e22..3fdf0b65f47e 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_hdmi.c +++ b/drivers/gpu/drm/exynos/exynos_drm_hdmi.c @@ -345,7 +345,7 @@ static int __devinit exynos_drm_hdmi_probe(struct platform_device *pdev) DRM_DEBUG_KMS("%s\n", __FILE__); - ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); + ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL); if (!ctx) { DRM_LOG_KMS("failed to alloc common hdmi context.\n"); return -ENOMEM; @@ -371,7 +371,6 @@ static int __devexit exynos_drm_hdmi_remove(struct platform_device *pdev) DRM_DEBUG_KMS("%s\n", __FILE__); exynos_drm_subdrv_unregister(&ctx->subdrv); - kfree(ctx); return 0; } -- cgit v1.2.1 From b767593349c92049dcea4a8ce5c534c4a470099b Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Mon, 6 Aug 2012 12:16:20 +0530 Subject: drm/exynos: Use devm_* functions in exynos_drm_g2d.c file devm_* functions are device managed functions and make error handling and cleanup cleaner and simpler. Signed-off-by: Sachin Kamat Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park --- drivers/gpu/drm/exynos/exynos_drm_g2d.c | 50 +++++++-------------------------- 1 file changed, 10 insertions(+), 40 deletions(-) diff --git a/drivers/gpu/drm/exynos/exynos_drm_g2d.c b/drivers/gpu/drm/exynos/exynos_drm_g2d.c index d2d88f22a037..6adfa4e03265 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_g2d.c +++ b/drivers/gpu/drm/exynos/exynos_drm_g2d.c @@ -129,7 +129,6 @@ struct g2d_runqueue_node { struct g2d_data { struct device *dev; struct clk *gate_clk; - struct resource *regs_res; void __iomem *regs; int irq; struct workqueue_struct *g2d_workq; @@ -751,7 +750,7 @@ static int __devinit g2d_probe(struct platform_device *pdev) struct exynos_drm_subdrv *subdrv; int ret; - g2d = kzalloc(sizeof(*g2d), GFP_KERNEL); + g2d = devm_kzalloc(&pdev->dev, sizeof(*g2d), GFP_KERNEL); if (!g2d) { dev_err(dev, "failed to allocate driver data\n"); return -ENOMEM; @@ -759,10 +758,8 @@ static int __devinit g2d_probe(struct platform_device *pdev) g2d->runqueue_slab = kmem_cache_create("g2d_runqueue_slab", sizeof(struct g2d_runqueue_node), 0, 0, NULL); - if (!g2d->runqueue_slab) { - ret = -ENOMEM; - goto err_free_mem; - } + if (!g2d->runqueue_slab) + return -ENOMEM; g2d->dev = dev; @@ -794,38 +791,26 @@ static int __devinit g2d_probe(struct platform_device *pdev) pm_runtime_enable(dev); res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) { - dev_err(dev, "failed to get I/O memory\n"); - ret = -ENOENT; - goto err_put_clk; - } - g2d->regs_res = request_mem_region(res->start, resource_size(res), - dev_name(dev)); - if (!g2d->regs_res) { - dev_err(dev, "failed to request I/O memory\n"); - ret = -ENOENT; - goto err_put_clk; - } - - g2d->regs = ioremap(res->start, resource_size(res)); + g2d->regs = devm_request_and_ioremap(&pdev->dev, res); if (!g2d->regs) { dev_err(dev, "failed to remap I/O memory\n"); ret = -ENXIO; - goto err_release_res; + goto err_put_clk; } g2d->irq = platform_get_irq(pdev, 0); if (g2d->irq < 0) { dev_err(dev, "failed to get irq\n"); ret = g2d->irq; - goto err_unmap_base; + goto err_put_clk; } - ret = request_irq(g2d->irq, g2d_irq_handler, 0, "drm_g2d", g2d); + ret = devm_request_irq(&pdev->dev, g2d->irq, g2d_irq_handler, 0, + "drm_g2d", g2d); if (ret < 0) { dev_err(dev, "irq request failed\n"); - goto err_unmap_base; + goto err_put_clk; } platform_set_drvdata(pdev, g2d); @@ -838,7 +823,7 @@ static int __devinit g2d_probe(struct platform_device *pdev) ret = exynos_drm_subdrv_register(subdrv); if (ret < 0) { dev_err(dev, "failed to register drm g2d device\n"); - goto err_free_irq; + goto err_put_clk; } dev_info(dev, "The exynos g2d(ver %d.%d) successfully probed\n", @@ -846,13 +831,6 @@ static int __devinit g2d_probe(struct platform_device *pdev) return 0; -err_free_irq: - free_irq(g2d->irq, g2d); -err_unmap_base: - iounmap(g2d->regs); -err_release_res: - release_resource(g2d->regs_res); - kfree(g2d->regs_res); err_put_clk: pm_runtime_disable(dev); clk_put(g2d->gate_clk); @@ -862,8 +840,6 @@ err_destroy_workqueue: destroy_workqueue(g2d->g2d_workq); err_destroy_slab: kmem_cache_destroy(g2d->runqueue_slab); -err_free_mem: - kfree(g2d); return ret; } @@ -873,24 +849,18 @@ static int __devexit g2d_remove(struct platform_device *pdev) cancel_work_sync(&g2d->runqueue_work); exynos_drm_subdrv_unregister(&g2d->subdrv); - free_irq(g2d->irq, g2d); while (g2d->runqueue_node) { g2d_free_runqueue_node(g2d, g2d->runqueue_node); g2d->runqueue_node = g2d_get_runqueue_node(g2d); } - iounmap(g2d->regs); - release_resource(g2d->regs_res); - kfree(g2d->regs_res); - pm_runtime_disable(&pdev->dev); clk_put(g2d->gate_clk); g2d_fini_cmdlist(g2d); destroy_workqueue(g2d->g2d_workq); kmem_cache_destroy(g2d->runqueue_slab); - kfree(g2d); return 0; } -- cgit v1.2.1 From 4fbd9a4539e4eda1e9588509eb31e9dc38ffd653 Mon Sep 17 00:00:00 2001 From: Thomas Meyer Date: Tue, 7 Aug 2012 08:57:25 +0200 Subject: drm/exynos: Use ERR_CAST inlined function instead of ERR_PTR(PTR_ERR(.. [1] The semantic patch that makes this change is available in scripts/coccinelle/api/err_cast.cocci. More information about semantic patching is available at http://coccinelle.lip6.fr/ Signed-off-by: Thomas Meyer Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park --- drivers/gpu/drm/exynos/exynos_drm_gem.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.c b/drivers/gpu/drm/exynos/exynos_drm_gem.c index f9efde40c097..da4e3ca219fa 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_gem.c +++ b/drivers/gpu/drm/exynos/exynos_drm_gem.c @@ -122,7 +122,7 @@ fail: __free_page(pages[i]); drm_free_large(pages); - return ERR_PTR(PTR_ERR(p)); + return ERR_CAST(p); } static void exynos_gem_put_pages(struct drm_gem_object *obj, -- cgit v1.2.1 From 7da5907c84f8b092dc42b47b5c19684c1b3b4c98 Mon Sep 17 00:00:00 2001 From: Inki Dae Date: Fri, 17 Aug 2012 15:24:03 +0900 Subject: drm/exynos: fixed page align bug. do not align in page unit at dumb creation. the align is done by exynos_drm_gem_create() to be called commonly. Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park --- drivers/gpu/drm/exynos/exynos_drm_gem.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.c b/drivers/gpu/drm/exynos/exynos_drm_gem.c index da4e3ca219fa..a38051c95ec4 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_gem.c +++ b/drivers/gpu/drm/exynos/exynos_drm_gem.c @@ -662,7 +662,7 @@ int exynos_drm_gem_dumb_create(struct drm_file *file_priv, */ args->pitch = args->width * ((args->bpp + 7) / 8); - args->size = PAGE_ALIGN(args->pitch * args->height); + args->size = args->pitch * args->height; exynos_gem_obj = exynos_drm_gem_create(dev, args->flags, args->size); if (IS_ERR(exynos_gem_obj)) -- cgit v1.2.1 From 254d4d111ee159a39d4afb30d9515036d1e0b027 Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Tue, 14 Aug 2012 12:07:20 +0530 Subject: drm/exynos: Add dependency for G2D in Kconfig Select Exynos DRM based G2D only if non-DRM based Exynos G2D driver is not selected. Signed-off-by: Sachin Kamat Signed-off-by: Inki Dae --- drivers/gpu/drm/exynos/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/exynos/Kconfig b/drivers/gpu/drm/exynos/Kconfig index 7f5096763b7d..59a26e577b57 100644 --- a/drivers/gpu/drm/exynos/Kconfig +++ b/drivers/gpu/drm/exynos/Kconfig @@ -36,6 +36,6 @@ config DRM_EXYNOS_VIDI config DRM_EXYNOS_G2D bool "Exynos DRM G2D" - depends on DRM_EXYNOS + depends on DRM_EXYNOS && !VIDEO_SAMSUNG_S5P_G2D help Choose this option if you want to use Exynos G2D for DRM. -- cgit v1.2.1 From 9e1355e7d9c0dac39b9bc4e146a49d379f43ba42 Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Tue, 28 Aug 2012 14:11:41 +0530 Subject: drm/exynos: Make g2d_pm_ops static Fixes the following warning: drivers/gpu/drm/exynos/exynos_drm_g2d.c:897:1: warning: symbol 'g2d_pm_ops' was not declared. Should it be static? Signed-off-by: Sachin Kamat Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park --- drivers/gpu/drm/exynos/exynos_drm_g2d.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/exynos/exynos_drm_g2d.c b/drivers/gpu/drm/exynos/exynos_drm_g2d.c index 6adfa4e03265..1065e90d0919 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_g2d.c +++ b/drivers/gpu/drm/exynos/exynos_drm_g2d.c @@ -894,7 +894,7 @@ static int g2d_resume(struct device *dev) } #endif -SIMPLE_DEV_PM_OPS(g2d_pm_ops, g2d_suspend, g2d_resume); +static SIMPLE_DEV_PM_OPS(g2d_pm_ops, g2d_suspend, g2d_resume); struct platform_driver g2d_driver = { .probe = g2d_probe, -- cgit v1.2.1 From adc837ac3c6eb76d734e471512eaeba210fa5e98 Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Fri, 31 Aug 2012 15:50:47 +0530 Subject: drm/exynos: Add missing braces around sizeof in exynos_hdmi.c Fixes the following checkpatch warnings: WARNING: sizeof *res should be sizeof(*res) WARNING: sizeof res->regul_bulk[0] should be sizeof(res->regul_bulk[0]) WARNING: sizeof *res should be sizeof(*res) Signed-off-by: Sachin Kamat Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park --- drivers/gpu/drm/exynos/exynos_hdmi.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c index bb504cbd7898..a6aea6f3ea1a 100644 --- a/drivers/gpu/drm/exynos/exynos_hdmi.c +++ b/drivers/gpu/drm/exynos/exynos_hdmi.c @@ -2172,7 +2172,7 @@ static int __devinit hdmi_resources_init(struct hdmi_context *hdata) DRM_DEBUG_KMS("HDMI resource init\n"); - memset(res, 0, sizeof *res); + memset(res, 0, sizeof(*res)); /* get clocks, power */ res->hdmi = clk_get(dev, "hdmi"); @@ -2204,7 +2204,7 @@ static int __devinit hdmi_resources_init(struct hdmi_context *hdata) clk_set_parent(res->sclk_hdmi, res->sclk_pixel); res->regul_bulk = kzalloc(ARRAY_SIZE(supply) * - sizeof res->regul_bulk[0], GFP_KERNEL); + sizeof(res->regul_bulk[0]), GFP_KERNEL); if (!res->regul_bulk) { DRM_ERROR("failed to get memory for regulators\n"); goto fail; @@ -2243,7 +2243,7 @@ static int hdmi_resources_cleanup(struct hdmi_context *hdata) clk_put(res->sclk_hdmi); if (!IS_ERR_OR_NULL(res->hdmi)) clk_put(res->hdmi); - memset(res, 0, sizeof *res); + memset(res, 0, sizeof(*res)); return 0; } -- cgit v1.2.1 From e25e1b6654e3d80da7a40561ec6dba6c5e7e12d3 Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Fri, 31 Aug 2012 15:50:48 +0530 Subject: drm/exynos: Add missing braces around sizeof in exynos_mixer.c Fixes the following checkpatch warnings: WARNING: sizeof filter_y_horiz_tap8 should be sizeof(filter_y_horiz_tap8) WARNING: sizeof filter_y_vert_tap4 should be sizeof(filter_y_vert_tap4) WARNING: sizeof filter_cr_horiz_tap4 should be sizeof(filter_cr_horiz_tap4) Signed-off-by: Sachin Kamat Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park --- drivers/gpu/drm/exynos/exynos_mixer.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c b/drivers/gpu/drm/exynos/exynos_mixer.c index 30fcc12f81dd..25b97d5e5fcb 100644 --- a/drivers/gpu/drm/exynos/exynos_mixer.c +++ b/drivers/gpu/drm/exynos/exynos_mixer.c @@ -236,11 +236,11 @@ static inline void vp_filter_set(struct mixer_resources *res, static void vp_default_filter(struct mixer_resources *res) { vp_filter_set(res, VP_POLY8_Y0_LL, - filter_y_horiz_tap8, sizeof filter_y_horiz_tap8); + filter_y_horiz_tap8, sizeof(filter_y_horiz_tap8)); vp_filter_set(res, VP_POLY4_Y0_LL, - filter_y_vert_tap4, sizeof filter_y_vert_tap4); + filter_y_vert_tap4, sizeof(filter_y_vert_tap4)); vp_filter_set(res, VP_POLY4_C0_LL, - filter_cr_horiz_tap4, sizeof filter_cr_horiz_tap4); + filter_cr_horiz_tap4, sizeof(filter_cr_horiz_tap4)); } static void mixer_vsync_set_update(struct mixer_context *ctx, bool enable) -- cgit v1.2.1 From b716d46e003fc12f64bbdd71e5b9fd733e59b8d4 Mon Sep 17 00:00:00 2001 From: Tomasz Stanislawski Date: Wed, 5 Sep 2012 19:31:56 +0900 Subject: drm/exynos: add dummy support for dmabuf-mmap This patch adds a stub function for DMABUF mmap. This allows to export a DMABUF. Signed-off-by: Tomasz Stanislawski Signed-off-by: Kyungmin Park Signed-off-by: Inki Dae --- drivers/gpu/drm/exynos/exynos_drm_dmabuf.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/gpu/drm/exynos/exynos_drm_dmabuf.c b/drivers/gpu/drm/exynos/exynos_drm_dmabuf.c index 613bf8a5d9b2..ae13febe0eaa 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_dmabuf.c +++ b/drivers/gpu/drm/exynos/exynos_drm_dmabuf.c @@ -163,6 +163,12 @@ static void exynos_gem_dmabuf_kunmap(struct dma_buf *dma_buf, /* TODO */ } +static int exynos_gem_dmabuf_mmap(struct dma_buf *dma_buf, + struct vm_area_struct *vma) +{ + return -ENOTTY; +} + static struct dma_buf_ops exynos_dmabuf_ops = { .map_dma_buf = exynos_gem_map_dma_buf, .unmap_dma_buf = exynos_gem_unmap_dma_buf, @@ -170,6 +176,7 @@ static struct dma_buf_ops exynos_dmabuf_ops = { .kmap_atomic = exynos_gem_dmabuf_kmap_atomic, .kunmap = exynos_gem_dmabuf_kunmap, .kunmap_atomic = exynos_gem_dmabuf_kunmap_atomic, + .mmap = exynos_gem_dmabuf_mmap, .release = exynos_dmabuf_release, }; -- cgit v1.2.1 From 525ee699f08c0d2516103e4ffd57c21041405d0c Mon Sep 17 00:00:00 2001 From: Mandeep Singh Baines Date: Thu, 6 Sep 2012 09:49:23 -0700 Subject: drm/exynos: fix double call of drm_prime_(init/destroy)_file_private The double invocations are incorrect but seem to be safe so I don't think this will fix any bugs. Before: [ 7.639366] drm_prime_init_file ee3675d0 [ 7.639377] drm_prime_init_file ee3675d0 [ 7.639507] drm_prime_destroy_file ee3675d0 [ 7.639518] drm_prime_destroy_file ee3675d0 [ 7.639802] drm_prime_init_file ee372390 [ 7.639810] drm_prime_init_file ee372390 [ 8.473316] drm_prime_init_file ee356390 [ 8.473331] drm_prime_init_file ee356390 After: [ 6.363842] drm_prime_init_file edc2e5d0 [ 6.363994] drm_prime_destroy_file edc2e5d0 [ 6.364260] drm_prime_init_file edc2e750 [ 8.004837] drm_prime_init_file ee36ded0 Signed-off-by: Mandeep Singh Baines Acked-by: Seung-Woo Kim Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park --- drivers/gpu/drm/exynos/exynos_drm_drv.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c index 6345abe9fdee..d07071937453 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_drv.c +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c @@ -160,7 +160,6 @@ static int exynos_drm_open(struct drm_device *dev, struct drm_file *file) if (!file_priv) return -ENOMEM; - drm_prime_init_file_private(&file->prime); file->driver_priv = file_priv; return exynos_drm_subdrv_open(dev, file); @@ -184,7 +183,6 @@ static void exynos_drm_preclose(struct drm_device *dev, e->base.destroy(&e->base); } } - drm_prime_destroy_file_private(&file->prime); spin_unlock_irqrestore(&dev->event_lock, flags); exynos_drm_subdrv_close(dev, file); -- cgit v1.2.1 From ece82d624cd0ca783e3fa2377fbbce6dd01ec1b3 Mon Sep 17 00:00:00 2001 From: Inki Dae Date: Fri, 7 Sep 2012 16:18:15 +0900 Subject: drm/exynos: remove DRM_FORMAT_NV12M from plane module this patch removes DRM_FORMAT_NV12M from plane module because this format is same as DRM_FORMAT_NV12. DRM_FORMAT_NV12M will be identified by mode_cmd->handles and mode_cmd->offsets fields internally. Signed-off-by: Inki Dae Signed-off-by: Kyungmin.park --- drivers/gpu/drm/exynos/exynos_drm_plane.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/gpu/drm/exynos/exynos_drm_plane.c b/drivers/gpu/drm/exynos/exynos_drm_plane.c index b89829e5043a..e1f94b746bd7 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_plane.c +++ b/drivers/gpu/drm/exynos/exynos_drm_plane.c @@ -29,7 +29,6 @@ static const uint32_t formats[] = { DRM_FORMAT_XRGB8888, DRM_FORMAT_ARGB8888, DRM_FORMAT_NV12, - DRM_FORMAT_NV12M, DRM_FORMAT_NV12MT, }; -- cgit v1.2.1 From d9dd85dd4e18c255225bada181ffcee37f4ff9a6 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= Date: Fri, 20 Apr 2012 18:26:10 +0300 Subject: drm: Drop the NV12M and YUV420M formats MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The NV12M/YUV420M formats are identical to the NV12/YUV420 formats. So just remove these duplicated format names. This might look like breaking the ABI, but the code has never actually accepted these formats, so nothing can be using them. Signed-off-by: Ville Syrjälä Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park --- include/drm/drm_fourcc.h | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) diff --git a/include/drm/drm_fourcc.h b/include/drm/drm_fourcc.h index bdf0152cbbe9..f4621184a9b4 100644 --- a/include/drm/drm_fourcc.h +++ b/include/drm/drm_fourcc.h @@ -107,8 +107,7 @@ #define DRM_FORMAT_NV16 fourcc_code('N', 'V', '1', '6') /* 2x1 subsampled Cr:Cb plane */ #define DRM_FORMAT_NV61 fourcc_code('N', 'V', '6', '1') /* 2x1 subsampled Cb:Cr plane */ -/* 2 non contiguous plane YCbCr */ -#define DRM_FORMAT_NV12M fourcc_code('N', 'M', '1', '2') /* 2x2 subsampled Cr:Cb plane */ +/* special NV12 tiled format */ #define DRM_FORMAT_NV12MT fourcc_code('T', 'M', '1', '2') /* 2x2 subsampled Cr:Cb plane 64x32 macroblocks */ /* @@ -131,7 +130,4 @@ #define DRM_FORMAT_YUV444 fourcc_code('Y', 'U', '2', '4') /* non-subsampled Cb (1) and Cr (2) planes */ #define DRM_FORMAT_YVU444 fourcc_code('Y', 'V', '2', '4') /* non-subsampled Cr (1) and Cb (2) planes */ -/* 3 non contiguous plane YCbCr */ -#define DRM_FORMAT_YUV420M fourcc_code('Y', 'M', '1', '2') /* 2x2 subsampled Cb (1) and Cr (2) planes */ - #endif /* DRM_FOURCC_H */ -- cgit v1.2.1 From 1fefb8fdc6562057a0e4e4542f3d4323981c9686 Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Mon, 10 Sep 2012 01:09:04 +0100 Subject: ahci: Add JMicron 362 device IDs The JMicron JMB362 controller supports AHCI only, but some revisions use the IDE class code. These need to be matched by device ID. These additions have apparently been included by QNAP in their NAS devices using these controllers. References: http://bugs.debian.org/634180 Signed-off-by: Ben Hutchings Signed-off-by: Jeff Garzik --- drivers/ata/ahci.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index 50d5dea0ff59..c3f52eb97fca 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -268,6 +268,9 @@ static const struct pci_device_id ahci_pci_tbl[] = { /* JMicron 360/1/3/5/6, match class to avoid IDE function */ { PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci_ign_iferr }, + /* JMicron 362B and 362C have an AHCI function with IDE class code */ + { PCI_VDEVICE(JMICRON, 0x2362), board_ahci_ign_iferr }, + { PCI_VDEVICE(JMICRON, 0x236f), board_ahci_ign_iferr }, /* ATI */ { PCI_VDEVICE(ATI, 0x4380), board_ahci_sb600 }, /* ATI SB600 */ -- cgit v1.2.1 From 17c60c6b763cb5b83b0185e7d38d01d18e55a05a Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Tue, 4 Sep 2012 16:07:18 +0100 Subject: ahci: Add alternate identifier for the 88SE9172 This can also appear as 0x9192. Reported in bugzilla and confirmed with the board documentation for these boards. Resolves-bug: https://bugzilla.kernel.org/show_bug.cgi?id=42970 Signed-off-by: Alan Cox Cc: The Stables Signed-off-by: Jeff Garzik --- drivers/ata/ahci.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index c3f52eb97fca..51548dd60977 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -396,6 +396,8 @@ static const struct pci_device_id ahci_pci_tbl[] = { .driver_data = board_ahci_yes_fbs }, /* 88se9125 */ { PCI_DEVICE(0x1b4b, 0x917a), .driver_data = board_ahci_yes_fbs }, /* 88se9172 */ + { PCI_DEVICE(0x1b4b, 0x9192), + .driver_data = board_ahci_yes_fbs }, /* 88se9172 on some Gigabyte */ { PCI_DEVICE(0x1b4b, 0x91a3), .driver_data = board_ahci_yes_fbs }, -- cgit v1.2.1 From 7b4f6ecacb14f384adc1a5a67ad95eb082c02bd1 Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Tue, 4 Sep 2012 16:25:25 +0100 Subject: ahci: Add identifiers for ASM106x devices They don't always appear as AHCI class devices but instead as IDE class. Based on an initial patch by Hiroaki Nito Resolves-bug: https://bugzilla.kernel.org/show_bug.cgi?id=42804 Signed-off-by: Alan Cox Signed-off-by: Jeff Garzik --- drivers/ata/ahci.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index 51548dd60977..7862d17976b7 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -405,7 +405,10 @@ static const struct pci_device_id ahci_pci_tbl[] = { { PCI_VDEVICE(PROMISE, 0x3f20), board_ahci }, /* PDC42819 */ /* Asmedia */ - { PCI_VDEVICE(ASMEDIA, 0x0612), board_ahci }, /* ASM1061 */ + { PCI_VDEVICE(ASMEDIA, 0x0601), board_ahci }, /* ASM1060 */ + { PCI_VDEVICE(ASMEDIA, 0x0602), board_ahci }, /* ASM1060 */ + { PCI_VDEVICE(ASMEDIA, 0x0611), board_ahci }, /* ASM1061 */ + { PCI_VDEVICE(ASMEDIA, 0x0612), board_ahci }, /* ASM1062 */ /* Generic, PCI class code for AHCI */ { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, -- cgit v1.2.1 From da1dfb6af849cb05aa82b0c18866a7b2bafb6905 Mon Sep 17 00:00:00 2001 From: Steven Whitehouse Date: Thu, 26 Jul 2012 11:30:54 +0100 Subject: GFS2: Make write size hinting code common This collects up the write size hinting code which is used by the block reservation subsystem into a single function. At the same time this also corrects the rounding for this calculation. Signed-off-by: Steven Whitehouse --- fs/gfs2/file.c | 31 +++++++++++++++++++++++++++---- 1 file changed, 27 insertions(+), 4 deletions(-) diff --git a/fs/gfs2/file.c b/fs/gfs2/file.c index d1d791ef38de..382000ffac1f 100644 --- a/fs/gfs2/file.c +++ b/fs/gfs2/file.c @@ -322,6 +322,29 @@ static long gfs2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) return -ENOTTY; } +/** + * gfs2_size_hint - Give a hint to the size of a write request + * @file: The struct file + * @offset: The file offset of the write + * @size: The length of the write + * + * When we are about to do a write, this function records the total + * write size in order to provide a suitable hint to the lower layers + * about how many blocks will be required. + * + */ + +static void gfs2_size_hint(struct file *filep, loff_t offset, size_t size) +{ + struct inode *inode = filep->f_dentry->d_inode; + struct gfs2_sbd *sdp = GFS2_SB(inode); + struct gfs2_inode *ip = GFS2_I(inode); + size_t blks = (size + sdp->sd_sb.sb_bsize - 1) >> sdp->sd_sb.sb_bsize_shift; + int hint = min_t(size_t, INT_MAX, blks); + + atomic_set(&ip->i_res->rs_sizehint, hint); +} + /** * gfs2_allocate_page_backing - Use bmap to allocate blocks * @page: The (locked) page to allocate backing for @@ -382,8 +405,7 @@ static int gfs2_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf) if (ret) return ret; - atomic_set(&ip->i_res->rs_sizehint, - PAGE_CACHE_SIZE >> sdp->sd_sb.sb_bsize_shift); + gfs2_size_hint(vma->vm_file, pos, PAGE_CACHE_SIZE); gfs2_holder_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &gh); ret = gfs2_glock_nq(&gh); @@ -663,7 +685,8 @@ static ssize_t gfs2_file_aio_write(struct kiocb *iocb, const struct iovec *iov, if (ret) return ret; - atomic_set(&ip->i_res->rs_sizehint, writesize >> sdp->sd_sb.sb_bsize_shift); + gfs2_size_hint(file, pos, writesize); + if (file->f_flags & O_APPEND) { struct gfs2_holder gh; @@ -789,7 +812,7 @@ static long gfs2_fallocate(struct file *file, int mode, loff_t offset, if (unlikely(error)) goto out_uninit; - atomic_set(&ip->i_res->rs_sizehint, len >> sdp->sd_sb.sb_bsize_shift); + gfs2_size_hint(file, offset, len); while (len > 0) { if (len < bytes) -- cgit v1.2.1 From 645b2ccc75d3d15928e3dbfc659659c2b8d4d9a6 Mon Sep 17 00:00:00 2001 From: Steven Whitehouse Date: Thu, 26 Jul 2012 14:15:17 +0100 Subject: GFS2: Fix missing allocation data for set/remove xattr These entry points were missed in the original patch to allocate this data structure. Signed-off-by: Steven Whitehouse --- fs/gfs2/inode.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c index 4ce22e547308..753af3d86bbc 100644 --- a/fs/gfs2/inode.c +++ b/fs/gfs2/inode.c @@ -1722,7 +1722,9 @@ static int gfs2_setxattr(struct dentry *dentry, const char *name, gfs2_holder_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &gh); ret = gfs2_glock_nq(&gh); if (ret == 0) { - ret = generic_setxattr(dentry, name, data, size, flags); + ret = gfs2_rs_alloc(ip); + if (ret == 0) + ret = generic_setxattr(dentry, name, data, size, flags); gfs2_glock_dq(&gh); } gfs2_holder_uninit(&gh); @@ -1757,7 +1759,9 @@ static int gfs2_removexattr(struct dentry *dentry, const char *name) gfs2_holder_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &gh); ret = gfs2_glock_nq(&gh); if (ret == 0) { - ret = generic_removexattr(dentry, name); + ret = gfs2_rs_alloc(ip); + if (ret == 0) + ret = generic_removexattr(dentry, name); gfs2_glock_dq(&gh); } gfs2_holder_uninit(&gh); -- cgit v1.2.1 From 62e252eeefda62eb8cae9f4286270317ab8d5a42 Mon Sep 17 00:00:00 2001 From: Steven Whitehouse Date: Mon, 30 Jul 2012 11:06:08 +0100 Subject: GFS2: Take account of blockages when using reserved blocks The claim_reserved_blks() function was not taking account of the possibility of "blockages" while performing allocation. This can be caused by another node allocating something in the same extent which has been reserved locally. This patch tests for this condition and then skips the remainder of the reservation in this case. This is a relatively rare event, so that it should not affect the general performance improvement which the block reservations provide. The claim_reserved_blks() function also appears not to be able to deal with reservations which cross bitmap boundaries, but that can be dealt with in a future patch since we don't generate boundary crossing reservations currently. Signed-off-by: Steven Whitehouse Reported-by: David Teigland Cc: Bob Peterson --- fs/gfs2/rgrp.c | 66 +++++++++++++++++++++++++--------------------------------- 1 file changed, 28 insertions(+), 38 deletions(-) diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c index 4d34887a601d..c9ed814eeb6f 100644 --- a/fs/gfs2/rgrp.c +++ b/fs/gfs2/rgrp.c @@ -1961,7 +1961,7 @@ static void gfs2_rgrp_error(struct gfs2_rgrpd *rgd) * @dinode: 1 if this block is a dinode block, otherwise data block * @nblocks: desired extent length * - * Lay claim to previously allocated block reservation blocks. + * Lay claim to previously reserved blocks. * Returns: Starting block number of the blocks claimed. * Sets *nblocks to the actual extent length allocated. */ @@ -1970,19 +1970,17 @@ static u64 claim_reserved_blks(struct gfs2_inode *ip, bool dinode, { struct gfs2_blkreserv *rs = ip->i_res; struct gfs2_rgrpd *rgd = rs->rs_rgd; - struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode); struct gfs2_bitmap *bi; u64 start_block = gfs2_rs_startblk(rs); const unsigned int elen = *nblocks; - /*BUG_ON(!gfs2_glock_is_locked_by_me(ip->i_gl));*/ - gfs2_assert_withdraw(sdp, rgd); - /*BUG_ON(!gfs2_glock_is_locked_by_me(rgd->rd_gl));*/ bi = rs->rs_bi; gfs2_trans_add_bh(rgd->rd_gl, bi->bi_bh, 1); for (*nblocks = 0; *nblocks < elen && rs->rs_free; (*nblocks)++) { - /* Make sure the bitmap hasn't changed */ + if (gfs2_testbit(rgd, bi->bi_bh->b_data + bi->bi_offset, + bi->bi_len, rs->rs_biblk) != GFS2_BLKST_FREE) + break; gfs2_setbit(rgd, bi->bi_clone, bi, rs->rs_biblk, dinode ? GFS2_BLKST_DINODE : GFS2_BLKST_USED); rs->rs_biblk++; @@ -1991,20 +1989,12 @@ static u64 claim_reserved_blks(struct gfs2_inode *ip, bool dinode, BUG_ON(!rgd->rd_reserved); rgd->rd_reserved--; dinode = false; - trace_gfs2_rs(ip, rs, TRACE_RS_CLAIM); } - if (!rs->rs_free) { - struct gfs2_rgrpd *rgd = ip->i_res->rs_rgd; - + trace_gfs2_rs(ip, rs, TRACE_RS_CLAIM); + if (!rs->rs_free || *nblocks != elen) gfs2_rs_deltree(rs); - /* -nblocks because we haven't returned to do the math yet. - I'm doing the math backwards to prevent negative numbers, - but think of it as: - if (unclaimed_blocks(rgd) - *nblocks >= RGRP_RSRV_MINBLKS */ - if (unclaimed_blocks(rgd) >= RGRP_RSRV_MINBLKS + *nblocks) - rg_mblk_search(rgd, ip); - } + return start_block; } @@ -2037,34 +2027,34 @@ int gfs2_alloc_blocks(struct gfs2_inode *ip, u64 *bn, unsigned int *nblocks, if (ip->i_res->rs_requested == 0) return -ECANCELED; - /* Check if we have a multi-block reservation, and if so, claim the - next free block from it. */ + /* If we have a reservation, claim blocks from it. */ if (gfs2_rs_active(ip->i_res)) { BUG_ON(!ip->i_res->rs_free); rgd = ip->i_res->rs_rgd; block = claim_reserved_blks(ip, dinode, nblocks); - } else { - rgd = ip->i_rgd; + if (*nblocks) + goto found_blocks; + } - if (!dinode && rgrp_contains_block(rgd, ip->i_goal)) - goal = ip->i_goal - rgd->rd_data0; - else - goal = rgd->rd_last_alloc; - - blk = rgblk_search(rgd, goal, GFS2_BLKST_FREE, &bi); - - /* Since all blocks are reserved in advance, this shouldn't - happen */ - if (blk == BFITNOENT) { - printk(KERN_WARNING "BFITNOENT, nblocks=%u\n", - *nblocks); - printk(KERN_WARNING "FULL=%d\n", - test_bit(GBF_FULL, &rgd->rd_bits->bi_flags)); - goto rgrp_error; - } + rgd = ip->i_rgd; - block = gfs2_alloc_extent(rgd, bi, blk, dinode, nblocks); + if (!dinode && rgrp_contains_block(rgd, ip->i_goal)) + goal = ip->i_goal - rgd->rd_data0; + else + goal = rgd->rd_last_alloc; + + blk = rgblk_search(rgd, goal, GFS2_BLKST_FREE, &bi); + + /* Since all blocks are reserved in advance, this shouldn't happen */ + if (blk == BFITNOENT) { + printk(KERN_WARNING "BFITNOENT, nblocks=%u\n", *nblocks); + printk(KERN_WARNING "FULL=%d\n", + test_bit(GBF_FULL, &rgd->rd_bits->bi_flags)); + goto rgrp_error; } + + block = gfs2_alloc_extent(rgd, bi, blk, dinode, nblocks); +found_blocks: ndata = *nblocks; if (dinode) ndata--; -- cgit v1.2.1 From 64f1e00d8edb54f5d25fb0114a46050fb8340df4 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Thu, 13 Sep 2012 15:28:56 +0200 Subject: ALSA: hda - Yet another position_fix quirk for ASUS machines ASUS X53S also suffers from the same issue as in commit c302d6133. Use POS_FIX_POSBUF for this hardware, too. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=47461 Signed-off-by: Takashi Iwai --- sound/pci/hda/hda_intel.c | 1 + 1 file changed, 1 insertion(+) diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index 228cdf93fa29..c4763c52eaf6 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -2701,6 +2701,7 @@ static struct snd_pci_quirk position_fix_list[] __devinitdata = { SND_PCI_QUIRK(0x1043, 0x813d, "ASUS P5AD2", POS_FIX_LPIB), SND_PCI_QUIRK(0x1043, 0x81b3, "ASUS", POS_FIX_LPIB), SND_PCI_QUIRK(0x1043, 0x81e7, "ASUS M2V", POS_FIX_LPIB), + SND_PCI_QUIRK(0x1043, 0x1ac3, "ASUS X53S", POS_FIX_POSBUF), SND_PCI_QUIRK(0x1043, 0x1b43, "ASUS K53E", POS_FIX_POSBUF), SND_PCI_QUIRK(0x104d, 0x9069, "Sony VPCS11V9E", POS_FIX_LPIB), SND_PCI_QUIRK(0x10de, 0xcb89, "Macbook Pro 7,1", POS_FIX_LPIB), -- cgit v1.2.1 From 4b921eda53366b319602351ff4d7256fafa4bd1b Mon Sep 17 00:00:00 2001 From: Karsten Keil Date: Thu, 13 Sep 2012 04:36:20 +0000 Subject: mISDN: Fix wrong usage of flush_work_sync while holding locks It is a bad idea to hold a spinlock and call flush_work_sync. Move the workqueue cleanup outside the spinlock and use cancel_work_sync, on closing the channel this seems to be the more correct function. Remove the never used and constant return value of mISDN_freebchannel. Signed-off-by: Karsten Keil Cc: Signed-off-by: David S. Miller --- drivers/isdn/hardware/mISDN/avmfritz.c | 3 ++- drivers/isdn/hardware/mISDN/mISDNipac.c | 3 ++- drivers/isdn/hardware/mISDN/mISDNisar.c | 3 ++- drivers/isdn/hardware/mISDN/netjet.c | 3 ++- drivers/isdn/hardware/mISDN/w6692.c | 3 ++- drivers/isdn/mISDN/hwchannel.c | 9 ++++----- include/linux/mISDNhw.h | 2 +- 7 files changed, 15 insertions(+), 11 deletions(-) diff --git a/drivers/isdn/hardware/mISDN/avmfritz.c b/drivers/isdn/hardware/mISDN/avmfritz.c index fa6ca4733725..dceaec821b0e 100644 --- a/drivers/isdn/hardware/mISDN/avmfritz.c +++ b/drivers/isdn/hardware/mISDN/avmfritz.c @@ -857,8 +857,9 @@ avm_bctrl(struct mISDNchannel *ch, u32 cmd, void *arg) switch (cmd) { case CLOSE_CHANNEL: test_and_clear_bit(FLG_OPEN, &bch->Flags); + cancel_work_sync(&bch->workq); spin_lock_irqsave(&fc->lock, flags); - mISDN_freebchannel(bch); + mISDN_clear_bchannel(bch); modehdlc(bch, ISDN_P_NONE); spin_unlock_irqrestore(&fc->lock, flags); ch->protocol = ISDN_P_NONE; diff --git a/drivers/isdn/hardware/mISDN/mISDNipac.c b/drivers/isdn/hardware/mISDN/mISDNipac.c index 752e0825591f..ccd7d851be26 100644 --- a/drivers/isdn/hardware/mISDN/mISDNipac.c +++ b/drivers/isdn/hardware/mISDN/mISDNipac.c @@ -1406,8 +1406,9 @@ hscx_bctrl(struct mISDNchannel *ch, u32 cmd, void *arg) switch (cmd) { case CLOSE_CHANNEL: test_and_clear_bit(FLG_OPEN, &bch->Flags); + cancel_work_sync(&bch->workq); spin_lock_irqsave(hx->ip->hwlock, flags); - mISDN_freebchannel(bch); + mISDN_clear_bchannel(bch); hscx_mode(hx, ISDN_P_NONE); spin_unlock_irqrestore(hx->ip->hwlock, flags); ch->protocol = ISDN_P_NONE; diff --git a/drivers/isdn/hardware/mISDN/mISDNisar.c b/drivers/isdn/hardware/mISDN/mISDNisar.c index be5973ded6d6..182ecf0626c2 100644 --- a/drivers/isdn/hardware/mISDN/mISDNisar.c +++ b/drivers/isdn/hardware/mISDN/mISDNisar.c @@ -1588,8 +1588,9 @@ isar_bctrl(struct mISDNchannel *ch, u32 cmd, void *arg) switch (cmd) { case CLOSE_CHANNEL: test_and_clear_bit(FLG_OPEN, &bch->Flags); + cancel_work_sync(&bch->workq); spin_lock_irqsave(ich->is->hwlock, flags); - mISDN_freebchannel(bch); + mISDN_clear_bchannel(bch); modeisar(ich, ISDN_P_NONE); spin_unlock_irqrestore(ich->is->hwlock, flags); ch->protocol = ISDN_P_NONE; diff --git a/drivers/isdn/hardware/mISDN/netjet.c b/drivers/isdn/hardware/mISDN/netjet.c index c3e3e7686273..9bcade59eb73 100644 --- a/drivers/isdn/hardware/mISDN/netjet.c +++ b/drivers/isdn/hardware/mISDN/netjet.c @@ -812,8 +812,9 @@ nj_bctrl(struct mISDNchannel *ch, u32 cmd, void *arg) switch (cmd) { case CLOSE_CHANNEL: test_and_clear_bit(FLG_OPEN, &bch->Flags); + cancel_work_sync(&bch->workq); spin_lock_irqsave(&card->lock, flags); - mISDN_freebchannel(bch); + mISDN_clear_bchannel(bch); mode_tiger(bc, ISDN_P_NONE); spin_unlock_irqrestore(&card->lock, flags); ch->protocol = ISDN_P_NONE; diff --git a/drivers/isdn/hardware/mISDN/w6692.c b/drivers/isdn/hardware/mISDN/w6692.c index 26a86b846099..335fe6455002 100644 --- a/drivers/isdn/hardware/mISDN/w6692.c +++ b/drivers/isdn/hardware/mISDN/w6692.c @@ -1054,8 +1054,9 @@ w6692_bctrl(struct mISDNchannel *ch, u32 cmd, void *arg) switch (cmd) { case CLOSE_CHANNEL: test_and_clear_bit(FLG_OPEN, &bch->Flags); + cancel_work_sync(&bch->workq); spin_lock_irqsave(&card->lock, flags); - mISDN_freebchannel(bch); + mISDN_clear_bchannel(bch); w6692_mode(bc, ISDN_P_NONE); spin_unlock_irqrestore(&card->lock, flags); ch->protocol = ISDN_P_NONE; diff --git a/drivers/isdn/mISDN/hwchannel.c b/drivers/isdn/mISDN/hwchannel.c index ef34fd40867c..2602be23f341 100644 --- a/drivers/isdn/mISDN/hwchannel.c +++ b/drivers/isdn/mISDN/hwchannel.c @@ -148,17 +148,16 @@ mISDN_clear_bchannel(struct bchannel *ch) ch->next_minlen = ch->init_minlen; ch->maxlen = ch->init_maxlen; ch->next_maxlen = ch->init_maxlen; + skb_queue_purge(&ch->rqueue); + ch->rcount = 0; } EXPORT_SYMBOL(mISDN_clear_bchannel); -int +void mISDN_freebchannel(struct bchannel *ch) { + cancel_work_sync(&ch->workq); mISDN_clear_bchannel(ch); - skb_queue_purge(&ch->rqueue); - ch->rcount = 0; - flush_work_sync(&ch->workq); - return 0; } EXPORT_SYMBOL(mISDN_freebchannel); diff --git a/include/linux/mISDNhw.h b/include/linux/mISDNhw.h index d0752eca9b44..9d96d5d4dfed 100644 --- a/include/linux/mISDNhw.h +++ b/include/linux/mISDNhw.h @@ -183,7 +183,7 @@ extern int mISDN_initbchannel(struct bchannel *, unsigned short, unsigned short); extern int mISDN_freedchannel(struct dchannel *); extern void mISDN_clear_bchannel(struct bchannel *); -extern int mISDN_freebchannel(struct bchannel *); +extern void mISDN_freebchannel(struct bchannel *); extern int mISDN_ctrl_bchannel(struct bchannel *, struct mISDN_ctrl_req *); extern void queue_ch_frame(struct mISDNchannel *, u_int, int, struct sk_buff *); -- cgit v1.2.1 From e29fe837bfa3ca0a9f4ef1d4a90e6e0a74b6b8a0 Mon Sep 17 00:00:00 2001 From: David Ward Date: Thu, 13 Sep 2012 05:22:32 +0000 Subject: net_sched: gred: correct comment about qavg calculation in RIO mode Signed-off-by: David Ward Acked-by: Jamal Hadi Salim Signed-off-by: David S. Miller --- net/sched/sch_gred.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/sched/sch_gred.c b/net/sched/sch_gred.c index e901583e4ea5..fca73cdf44d9 100644 --- a/net/sched/sch_gred.c +++ b/net/sched/sch_gred.c @@ -176,7 +176,7 @@ static int gred_enqueue(struct sk_buff *skb, struct Qdisc *sch) skb->tc_index = (skb->tc_index & ~GRED_VQ_MASK) | dp; } - /* sum up all the qaves of prios <= to ours to get the new qave */ + /* sum up all the qaves of prios < ours to get the new qave */ if (!gred_wred_mode(t) && gred_rio_mode(t)) { int i; -- cgit v1.2.1 From c22e464022f935b0cbd8724b1d99d800d49518a9 Mon Sep 17 00:00:00 2001 From: David Ward Date: Thu, 13 Sep 2012 05:22:33 +0000 Subject: net_sched: gred: eliminate redundant DP prio comparisons Each pair of DPs only needs to be compared once when searching for a non-unique prio value. Signed-off-by: David Ward Acked-by: Jamal Hadi Salim Signed-off-by: David S. Miller --- net/sched/sch_gred.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/net/sched/sch_gred.c b/net/sched/sch_gred.c index fca73cdf44d9..e19d4ebfea1c 100644 --- a/net/sched/sch_gred.c +++ b/net/sched/sch_gred.c @@ -102,9 +102,8 @@ static inline int gred_wred_mode_check(struct Qdisc *sch) if (q == NULL) continue; - for (n = 0; n < table->DPs; n++) - if (table->tab[n] && table->tab[n] != q && - table->tab[n]->prio == q->prio) + for (n = i + 1; n < table->DPs; n++) + if (table->tab[n] && table->tab[n]->prio == q->prio) return 1; } -- cgit v1.2.1 From 1fe37b106b039d9358fd1211c39b1fa199e547a8 Mon Sep 17 00:00:00 2001 From: David Ward Date: Thu, 13 Sep 2012 05:22:34 +0000 Subject: net_sched: gred: fix qave reporting via netlink q->vars.qavg is a Wlog scaled value, but q->backlog is not. In order to pass q->vars.qavg as the backlog value, we need to un-scale it. Additionally, the qave value returned via netlink should not be Wlog scaled, so we need to un-scale the result of red_calc_qavg(). This caused artificially high values for "Average Queue" to be shown by 'tc -s -d qdisc', but did not affect the actual operation of GRED. Signed-off-by: David Ward Acked-by: Jamal Hadi Salim Signed-off-by: David S. Miller --- net/sched/sch_gred.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/net/sched/sch_gred.c b/net/sched/sch_gred.c index e19d4ebfea1c..b2570b59d85e 100644 --- a/net/sched/sch_gred.c +++ b/net/sched/sch_gred.c @@ -534,6 +534,7 @@ static int gred_dump(struct Qdisc *sch, struct sk_buff *skb) for (i = 0; i < MAX_DPs; i++) { struct gred_sched_data *q = table->tab[i]; struct tc_gred_qopt opt; + unsigned long qavg; memset(&opt, 0, sizeof(opt)); @@ -565,7 +566,9 @@ static int gred_dump(struct Qdisc *sch, struct sk_buff *skb) if (gred_wred_mode(table)) gred_load_wred_set(table, q); - opt.qave = red_calc_qavg(&q->parms, &q->vars, q->vars.qavg); + qavg = red_calc_qavg(&q->parms, &q->vars, + q->vars.qavg >> q->parms.Wlog); + opt.qave = qavg >> q->parms.Wlog; append_opt: if (nla_append(skb, sizeof(opt), &opt) < 0) -- cgit v1.2.1 From ba1bf474eae07a128fae6252bf7d68eaef0eacf8 Mon Sep 17 00:00:00 2001 From: David Ward Date: Thu, 13 Sep 2012 05:22:35 +0000 Subject: net_sched: gred: actually perform idling in WRED mode gred_dequeue() and gred_drop() do not seem to get called when the queue is empty, meaning that we never start idling while in WRED mode. And since qidlestart is not stored by gred_store_wred_set(), we would never stop idling while in WRED mode if we ever started. This messes up the average queue size calculation that influences packet marking/dropping behavior. Now, we start WRED mode idling as we are removing the last packet from the queue. Also we now actually stop WRED mode idling when we are enqueuing a packet. Cc: Bruce Osler Signed-off-by: David Ward Acked-by: Jamal Hadi Salim Signed-off-by: David S. Miller --- net/sched/sch_gred.c | 26 +++++++++++++++----------- 1 file changed, 15 insertions(+), 11 deletions(-) diff --git a/net/sched/sch_gred.c b/net/sched/sch_gred.c index b2570b59d85e..d42234c0f13b 100644 --- a/net/sched/sch_gred.c +++ b/net/sched/sch_gred.c @@ -136,6 +136,7 @@ static inline void gred_store_wred_set(struct gred_sched *table, struct gred_sched_data *q) { table->wred_set.qavg = q->vars.qavg; + table->wred_set.qidlestart = q->vars.qidlestart; } static inline int gred_use_ecn(struct gred_sched *t) @@ -259,16 +260,18 @@ static struct sk_buff *gred_dequeue(struct Qdisc *sch) } else { q->backlog -= qdisc_pkt_len(skb); - if (!q->backlog && !gred_wred_mode(t)) - red_start_of_idle_period(&q->vars); + if (gred_wred_mode(t)) { + if (!sch->qstats.backlog) + red_start_of_idle_period(&t->wred_set); + } else { + if (!q->backlog) + red_start_of_idle_period(&q->vars); + } } return skb; } - if (gred_wred_mode(t) && !red_is_idling(&t->wred_set)) - red_start_of_idle_period(&t->wred_set); - return NULL; } @@ -290,19 +293,20 @@ static unsigned int gred_drop(struct Qdisc *sch) q->backlog -= len; q->stats.other++; - if (!q->backlog && !gred_wred_mode(t)) - red_start_of_idle_period(&q->vars); + if (gred_wred_mode(t)) { + if (!sch->qstats.backlog) + red_start_of_idle_period(&t->wred_set); + } else { + if (!q->backlog) + red_start_of_idle_period(&q->vars); + } } qdisc_drop(skb, sch); return len; } - if (gred_wred_mode(t) && !red_is_idling(&t->wred_set)) - red_start_of_idle_period(&t->wred_set); - return 0; - } static void gred_reset(struct Qdisc *sch) -- cgit v1.2.1 From 8624dd2a3e33b647cd672211b54ba276ddee2a2c Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B8rn=20Mork?= Date: Wed, 12 Sep 2012 20:44:35 +0000 Subject: net: qmi_wwan: call subdriver with control intf only MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This fixes a hang on suspend due to calling wdm_suspend on the unregistered data interface. The hang should have been a NULL pointer reference had it not been for a logic error in the cdc_wdm code. commit 230718bd net: qmi_wwan: bind to both control and data interface changed qmi_wwan to use cdc_wdm as a subdriver for devices with a two-interface QMI/wwan function. The commit failed to update qmi_wwan_suspend and qmi_wwan_resume, which were written to handle either a single combined interface function, or no subdriver at all. The result was that we called into the subdriver both when the control interface was suspended and when the data interface was suspended. Calling the subdriver suspend function with an unregistered interface is not supported and will make the subdriver bug out. Signed-off-by: Bjørn Mork Signed-off-by: David S. Miller --- drivers/net/usb/qmi_wwan.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c index 17b8f3e37687..b1ba68f1a049 100644 --- a/drivers/net/usb/qmi_wwan.c +++ b/drivers/net/usb/qmi_wwan.c @@ -297,7 +297,7 @@ static int qmi_wwan_suspend(struct usb_interface *intf, pm_message_t message) if (ret < 0) goto err; - if (info->subdriver && info->subdriver->suspend) + if (intf == info->control && info->subdriver && info->subdriver->suspend) ret = info->subdriver->suspend(intf, message); if (ret < 0) usbnet_resume(intf); @@ -310,13 +310,14 @@ static int qmi_wwan_resume(struct usb_interface *intf) struct usbnet *dev = usb_get_intfdata(intf); struct qmi_wwan_state *info = (void *)&dev->data; int ret = 0; + bool callsub = (intf == info->control && info->subdriver && info->subdriver->resume); - if (info->subdriver && info->subdriver->resume) + if (callsub) ret = info->subdriver->resume(intf); if (ret < 0) goto err; ret = usbnet_resume(intf); - if (ret < 0 && info->subdriver && info->subdriver->resume && info->subdriver->suspend) + if (ret < 0 && callsub && info->subdriver->suspend) info->subdriver->suspend(intf, PMSG_SUSPEND); err: return ret; -- cgit v1.2.1 From 985f61f7ee647ad570c05eab0b74915da2ac8e19 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Fri, 31 Aug 2012 11:56:50 -0400 Subject: drm/radeon: rework pll selection (v3) For DP we can use the same PPLL for all active DP encoders. Take advantage of that to prevent cases where we may end up sharing a PPLL between DP and non-DP which won't work. Also clean up the code a bit. v2: - fix missing pll_id assignment in crtc init v3: - fix DP PPLL check - document functions - break in main encoder search loop after matching. no need to keep checking additional encoders. fixes: https://bugs.freedesktop.org/show_bug.cgi?id=54471 Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org --- drivers/gpu/drm/radeon/atombios_crtc.c | 163 ++++++++++++++++++++++++++------- 1 file changed, 129 insertions(+), 34 deletions(-) diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c index 2817101fb167..e721e3087b99 100644 --- a/drivers/gpu/drm/radeon/atombios_crtc.c +++ b/drivers/gpu/drm/radeon/atombios_crtc.c @@ -1479,14 +1479,98 @@ static void radeon_legacy_atom_fixup(struct drm_crtc *crtc) } } +/** + * radeon_get_pll_use_mask - look up a mask of which pplls are in use + * + * @crtc: drm crtc + * + * Returns the mask of which PPLLs (Pixel PLLs) are in use. + */ +static u32 radeon_get_pll_use_mask(struct drm_crtc *crtc) +{ + struct drm_device *dev = crtc->dev; + struct drm_crtc *test_crtc; + struct radeon_crtc *radeon_test_crtc; + u32 pll_in_use = 0; + + list_for_each_entry(test_crtc, &dev->mode_config.crtc_list, head) { + if (crtc == test_crtc) + continue; + + radeon_test_crtc = to_radeon_crtc(test_crtc); + if (radeon_test_crtc->pll_id != ATOM_PPLL_INVALID) + pll_in_use |= (1 << radeon_test_crtc->pll_id); + } + return pll_in_use; +} + +/** + * radeon_get_shared_dp_ppll - return the PPLL used by another crtc for DP + * + * @crtc: drm crtc + * + * Returns the PPLL (Pixel PLL) used by another crtc/encoder which is + * also in DP mode. For DP, a single PPLL can be used for all DP + * crtcs/encoders. + */ +static int radeon_get_shared_dp_ppll(struct drm_crtc *crtc) +{ + struct drm_device *dev = crtc->dev; + struct drm_encoder *test_encoder; + struct radeon_crtc *radeon_test_crtc; + + list_for_each_entry(test_encoder, &dev->mode_config.encoder_list, head) { + if (test_encoder->crtc && (test_encoder->crtc != crtc)) { + if (ENCODER_MODE_IS_DP(atombios_get_encoder_mode(test_encoder))) { + /* for DP use the same PLL for all */ + radeon_test_crtc = to_radeon_crtc(test_encoder->crtc); + if (radeon_test_crtc->pll_id != ATOM_PPLL_INVALID) + return radeon_test_crtc->pll_id; + } + } + } + return ATOM_PPLL_INVALID; +} + +/** + * radeon_atom_pick_pll - Allocate a PPLL for use by the crtc. + * + * @crtc: drm crtc + * + * Returns the PPLL (Pixel PLL) to be used by the crtc. For DP monitors + * a single PPLL can be used for all DP crtcs/encoders. For non-DP + * monitors a dedicated PPLL must be used. If a particular board has + * an external DP PLL, return ATOM_PPLL_INVALID to skip PLL programming + * as there is no need to program the PLL itself. If we are not able to + * allocate a PLL, return ATOM_PPLL_INVALID to skip PLL programming to + * avoid messing up an existing monitor. + * + * Asic specific PLL information + * + * DCE 6.1 + * - PPLL2 is only available to UNIPHYA (both DP and non-DP) + * - PPLL0, PPLL1 are available for UNIPHYB/C/D/E/F (both DP and non-DP) + * + * DCE 6.0 + * - PPLL0 is available to all UNIPHY (DP only) + * - PPLL1, PPLL2 are available for all UNIPHY (both DP and non-DP) and DAC + * + * DCE 5.0 + * - DCPLL is available to all UNIPHY (DP only) + * - PPLL1, PPLL2 are available for all UNIPHY (both DP and non-DP) and DAC + * + * DCE 3.0/4.0/4.1 + * - PPLL1, PPLL2 are available for all UNIPHY (both DP and non-DP) and DAC + * + */ static int radeon_atom_pick_pll(struct drm_crtc *crtc) { struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); struct drm_device *dev = crtc->dev; struct radeon_device *rdev = dev->dev_private; struct drm_encoder *test_encoder; - struct drm_crtc *test_crtc; - uint32_t pll_in_use = 0; + u32 pll_in_use; + int pll; if (ASIC_IS_DCE61(rdev)) { list_for_each_entry(test_encoder, &dev->mode_config.encoder_list, head) { @@ -1498,32 +1582,40 @@ static int radeon_atom_pick_pll(struct drm_crtc *crtc) if ((test_radeon_encoder->encoder_id == ENCODER_OBJECT_ID_INTERNAL_UNIPHY) && - (dig->linkb == false)) /* UNIPHY A uses PPLL2 */ + (dig->linkb == false)) + /* UNIPHY A uses PPLL2 */ return ATOM_PPLL2; + else if (ENCODER_MODE_IS_DP(atombios_get_encoder_mode(test_encoder))) { + /* UNIPHY B/C/D/E/F */ + if (rdev->clock.dp_extclk) + /* skip PPLL programming if using ext clock */ + return ATOM_PPLL_INVALID; + else { + /* use the same PPLL for all DP monitors */ + pll = radeon_get_shared_dp_ppll(crtc); + if (pll != ATOM_PPLL_INVALID) + return pll; + } + } + break; } } /* UNIPHY B/C/D/E/F */ - list_for_each_entry(test_crtc, &dev->mode_config.crtc_list, head) { - struct radeon_crtc *radeon_test_crtc; - - if (crtc == test_crtc) - continue; - - radeon_test_crtc = to_radeon_crtc(test_crtc); - if ((radeon_test_crtc->pll_id == ATOM_PPLL0) || - (radeon_test_crtc->pll_id == ATOM_PPLL1)) - pll_in_use |= (1 << radeon_test_crtc->pll_id); - } - if (!(pll_in_use & 4)) + pll_in_use = radeon_get_pll_use_mask(crtc); + if (!(pll_in_use & (1 << ATOM_PPLL0))) return ATOM_PPLL0; - return ATOM_PPLL1; + if (!(pll_in_use & (1 << ATOM_PPLL1))) + return ATOM_PPLL1; + DRM_ERROR("unable to allocate a PPLL\n"); + return ATOM_PPLL_INVALID; } else if (ASIC_IS_DCE4(rdev)) { list_for_each_entry(test_encoder, &dev->mode_config.encoder_list, head) { if (test_encoder->crtc && (test_encoder->crtc == crtc)) { /* in DP mode, the DP ref clock can come from PPLL, DCPLL, or ext clock, * depending on the asic: * DCE4: PPLL or ext clock - * DCE5: DCPLL or ext clock + * DCE5: PPLL, DCPLL, or ext clock + * DCE6: PPLL, PPLL0, or ext clock * * Setting ATOM_PPLL_INVALID will cause SetPixelClock to skip * PPLL/DCPLL programming and only program the DP DTO for the @@ -1531,31 +1623,34 @@ static int radeon_atom_pick_pll(struct drm_crtc *crtc) */ if (ENCODER_MODE_IS_DP(atombios_get_encoder_mode(test_encoder))) { if (rdev->clock.dp_extclk) + /* skip PPLL programming if using ext clock */ return ATOM_PPLL_INVALID; else if (ASIC_IS_DCE6(rdev)) + /* use PPLL0 for all DP */ return ATOM_PPLL0; else if (ASIC_IS_DCE5(rdev)) + /* use DCPLL for all DP */ return ATOM_DCPLL; + else { + /* use the same PPLL for all DP monitors */ + pll = radeon_get_shared_dp_ppll(crtc); + if (pll != ATOM_PPLL_INVALID) + return pll; + } } + break; } } - - /* otherwise, pick one of the plls */ - list_for_each_entry(test_crtc, &dev->mode_config.crtc_list, head) { - struct radeon_crtc *radeon_test_crtc; - - if (crtc == test_crtc) - continue; - - radeon_test_crtc = to_radeon_crtc(test_crtc); - if ((radeon_test_crtc->pll_id >= ATOM_PPLL1) && - (radeon_test_crtc->pll_id <= ATOM_PPLL2)) - pll_in_use |= (1 << radeon_test_crtc->pll_id); - } - if (!(pll_in_use & 1)) + /* all other cases */ + pll_in_use = radeon_get_pll_use_mask(crtc); + if (!(pll_in_use & (1 << ATOM_PPLL2))) + return ATOM_PPLL2; + if (!(pll_in_use & (1 << ATOM_PPLL1))) return ATOM_PPLL1; - return ATOM_PPLL2; + DRM_ERROR("unable to allocate a PPLL\n"); + return ATOM_PPLL_INVALID; } else + /* use PPLL1 or PPLL2 */ return radeon_crtc->crtc_id; } @@ -1697,7 +1792,7 @@ static void atombios_crtc_disable(struct drm_crtc *crtc) break; } done: - radeon_crtc->pll_id = -1; + radeon_crtc->pll_id = ATOM_PPLL_INVALID; } static const struct drm_crtc_helper_funcs atombios_helper_funcs = { @@ -1746,6 +1841,6 @@ void radeon_atombios_init_crtc(struct drm_device *dev, else radeon_crtc->crtc_offset = 0; } - radeon_crtc->pll_id = -1; + radeon_crtc->pll_id = ATOM_PPLL_INVALID; drm_crtc_helper_add(&radeon_crtc->base, &atombios_helper_funcs); } -- cgit v1.2.1 From f492c171a38d77fc13a8998a0721f2da50835224 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Christian=20K=C3=B6nig?= Date: Thu, 13 Sep 2012 10:33:47 +0200 Subject: drm/radeon: make 64bit fences more robust v3 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Only increase the higher 32bits if we really detect a wrap around. v2: instead of increasing the higher 32bits just use the higher 32bits from the last emitted fence. v3: also use last emitted fence value as upper limit. The intention of this patch is to make fences as robust as they where before introducing 64bit fences. This is necessary because on older systems it looks like the fence value gets corrupted on initialization. Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=51344 Should also fix: https://bugs.freedesktop.org/show_bug.cgi?id=54129 https://bugs.freedesktop.org/show_bug.cgi?id=54662 https://bugzilla.redhat.com/show_bug.cgi?id=846505 https://bugzilla.redhat.com/show_bug.cgi?id=845639 3.5 needs a separate patch due to changes in the fence code. Will send that out separately. Signed-off-by: Christian König Signed-off-by: Alex Deucher --- drivers/gpu/drm/radeon/radeon_fence.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/radeon/radeon_fence.c b/drivers/gpu/drm/radeon/radeon_fence.c index 7b737b9339ad..2a59375dbe52 100644 --- a/drivers/gpu/drm/radeon/radeon_fence.c +++ b/drivers/gpu/drm/radeon/radeon_fence.c @@ -131,7 +131,7 @@ int radeon_fence_emit(struct radeon_device *rdev, */ void radeon_fence_process(struct radeon_device *rdev, int ring) { - uint64_t seq, last_seq; + uint64_t seq, last_seq, last_emitted; unsigned count_loop = 0; bool wake = false; @@ -158,13 +158,15 @@ void radeon_fence_process(struct radeon_device *rdev, int ring) */ last_seq = atomic64_read(&rdev->fence_drv[ring].last_seq); do { + last_emitted = rdev->fence_drv[ring].sync_seq[ring]; seq = radeon_fence_read(rdev, ring); seq |= last_seq & 0xffffffff00000000LL; if (seq < last_seq) { - seq += 0x100000000LL; + seq &= 0xffffffff; + seq |= last_emitted & 0xffffffff00000000LL; } - if (seq == last_seq) { + if (seq <= last_seq || seq > last_emitted) { break; } /* If we loop over we don't want to return without -- cgit v1.2.1 From bef05406ac0ea6f468e1e25e9934f3011ea9259b Mon Sep 17 00:00:00 2001 From: Dmitry Kravkov Date: Tue, 11 Sep 2012 04:34:08 +0000 Subject: bnx2x: Avoid sending multiple statistics queries During traffic when DCB is enabled, it is possible for multiple instances of statistics queries to be sent to the chip - this may cause the FW to assert. This patch prevents the sending of an additional instance of statistics query while the previous query hasn't completed. Signed-off-by: Dmitry Kravkov Signed-off-by: Yuval Mintz Signed-off-by: Eilon Greenstein Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c index 332db64dd5be..d848dc9db7b0 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c @@ -1151,9 +1151,11 @@ static void bnx2x_stats_update(struct bnx2x *bp) if (bp->port.pmf) bnx2x_hw_stats_update(bp); - if (bnx2x_storm_stats_update(bp) && (bp->stats_pending++ == 3)) { - BNX2X_ERR("storm stats were not updated for 3 times\n"); - bnx2x_panic(); + if (bnx2x_storm_stats_update(bp)) { + if (bp->stats_pending++ == 3) { + BNX2X_ERR("storm stats were not updated for 3 times\n"); + bnx2x_panic(); + } return; } -- cgit v1.2.1 From 217aeb896a4a9f00006ce4b193c216f739234296 Mon Sep 17 00:00:00 2001 From: Yuval Mintz Date: Tue, 11 Sep 2012 04:34:09 +0000 Subject: bnx2x: fix stats copying logic FW needs the driver statistics for management. Current logic is broken in that the function that gathers the port statistics does not copy its own statistics to a place where the FW can use it. This patch causes every function that can pass statistics to the FW to do so. Signed-off-by: Yuval Mintz Signed-off-by: Eilon Greenstein Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c index d848dc9db7b0..a1d0446b39b3 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c @@ -101,6 +101,11 @@ static void bnx2x_hw_stats_post(struct bnx2x *bp) if (CHIP_REV_IS_SLOW(bp)) return; + /* Update MCP's statistics if possible */ + if (bp->func_stx) + memcpy(bnx2x_sp(bp, func_stats), &bp->func_stats, + sizeof(bp->func_stats)); + /* loader */ if (bp->executer_idx) { int loader_idx = PMF_DMAE_C(bp); @@ -128,8 +133,6 @@ static void bnx2x_hw_stats_post(struct bnx2x *bp) } else if (bp->func_stx) { *stats_comp = 0; - memcpy(bnx2x_sp(bp, func_stats), &bp->func_stats, - sizeof(bp->func_stats)); bnx2x_post_dmae(bp, dmae, INIT_DMAE_C(bp)); } } -- cgit v1.2.1 From 375944cb7c96bf66914a73b1858e5865c439b335 Mon Sep 17 00:00:00 2001 From: Yaniv Rosner Date: Tue, 11 Sep 2012 04:34:10 +0000 Subject: bnx2x: prevent timeouts when using PFC Prevent updating the xmac PFC configuration when using a link speed slower than 10G -the umac block is responsible for 1G or slower connections, therefore it is possible the xmac block is reset when connection is slower. Signed-off-by: Yaniv Rosner Signed-off-by: Yuval Mintz Signed-off-by: Eilon Greenstein Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c index f4beb46c4709..40a7b8d877cf 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c @@ -2667,9 +2667,11 @@ int bnx2x_update_pfc(struct link_params *params, return bnx2x_status; DP(NETIF_MSG_LINK, "About to update PFC in BMAC\n"); - if (CHIP_IS_E3(bp)) - bnx2x_update_pfc_xmac(params, vars, 0); - else { + + if (CHIP_IS_E3(bp)) { + if (vars->mac_type == MAC_TYPE_XMAC) + bnx2x_update_pfc_xmac(params, vars, 0); + } else { val = REG_RD(bp, MISC_REG_RESET_REG_2); if ((val & (MISC_REGISTERS_RESET_REG_2_RST_BMAC0 << params->port)) -- cgit v1.2.1 From 430d172a635c3dd791a56c59573418e02735b006 Mon Sep 17 00:00:00 2001 From: Yaniv Rosner Date: Tue, 11 Sep 2012 04:34:11 +0000 Subject: bnx2x: display the correct duplex value Prior to this fix, the driver reported the chip's active duplex state is always 'full', even if using half-duplex mode. Signed-off-by: Yaniv Rosner Signed-off-by: Yuval Mintz Signed-off-by: Eilon Greenstein Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c index 40a7b8d877cf..b046beb435b2 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c @@ -5434,7 +5434,7 @@ static int bnx2x_get_link_speed_duplex(struct bnx2x_phy *phy, switch (speed_mask) { case GP_STATUS_10M: vars->line_speed = SPEED_10; - if (vars->duplex == DUPLEX_FULL) + if (is_duplex == DUPLEX_FULL) vars->link_status |= LINK_10TFD; else vars->link_status |= LINK_10THD; @@ -5442,7 +5442,7 @@ static int bnx2x_get_link_speed_duplex(struct bnx2x_phy *phy, case GP_STATUS_100M: vars->line_speed = SPEED_100; - if (vars->duplex == DUPLEX_FULL) + if (is_duplex == DUPLEX_FULL) vars->link_status |= LINK_100TXFD; else vars->link_status |= LINK_100TXHD; @@ -5451,7 +5451,7 @@ static int bnx2x_get_link_speed_duplex(struct bnx2x_phy *phy, case GP_STATUS_1G: case GP_STATUS_1G_KX: vars->line_speed = SPEED_1000; - if (vars->duplex == DUPLEX_FULL) + if (is_duplex == DUPLEX_FULL) vars->link_status |= LINK_1000TFD; else vars->link_status |= LINK_1000THD; @@ -5459,7 +5459,7 @@ static int bnx2x_get_link_speed_duplex(struct bnx2x_phy *phy, case GP_STATUS_2_5G: vars->line_speed = SPEED_2500; - if (vars->duplex == DUPLEX_FULL) + if (is_duplex == DUPLEX_FULL) vars->link_status |= LINK_2500TFD; else vars->link_status |= LINK_2500THD; @@ -5533,6 +5533,7 @@ static int bnx2x_link_settings_status(struct bnx2x_phy *phy, if (gp_status & MDIO_GP_STATUS_TOP_AN_STATUS1_LINK_STATUS) { if (SINGLE_MEDIA_DIRECT(params)) { + vars->duplex = duplex; bnx2x_flow_ctrl_resolve(phy, params, vars, gp_status); if (phy->req_line_speed == SPEED_AUTO_NEG) bnx2x_xgxs_an_resolve(phy, params, vars, @@ -5627,6 +5628,7 @@ static int bnx2x_warpcore_read_status(struct bnx2x_phy *phy, LINK_STATUS_PARALLEL_DETECTION_USED; } bnx2x_ext_phy_resolve_fc(phy, params, vars); + vars->duplex = duplex; } } -- cgit v1.2.1 From 5cd75f0c0fd2b068dbd0ce3cb9460c3aafc0aae7 Mon Sep 17 00:00:00 2001 From: Yaniv Rosner Date: Tue, 11 Sep 2012 04:34:12 +0000 Subject: bnx2x: correct advertisement of pause capabilities This patch propagates users' requested flow-control into the link layer, which will later be used to advertise this flow-control for auto-negotiation (until now these values were ignored). Signed-off-by: Yaniv Rosner Signed-off-by: Yuval Mintz Signed-off-by: Eilon Greenstein Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c index c37a68d68090..bbf4cf00dd19 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c @@ -1587,6 +1587,12 @@ static int bnx2x_set_pauseparam(struct net_device *dev, bp->link_params.req_flow_ctrl[cfg_idx] = BNX2X_FLOW_CTRL_AUTO; } + bp->link_params.req_fc_auto_adv = BNX2X_FLOW_CTRL_NONE; + if (epause->rx_pause) + bp->link_params.req_fc_auto_adv |= BNX2X_FLOW_CTRL_RX; + + if (epause->tx_pause) + bp->link_params.req_fc_auto_adv |= BNX2X_FLOW_CTRL_TX; } DP(BNX2X_MSG_ETHTOOL, -- cgit v1.2.1 From 2ace95103df2bcb574c9da5df96807e9b46f9b38 Mon Sep 17 00:00:00 2001 From: Dmitry Kravkov Date: Tue, 11 Sep 2012 04:34:13 +0000 Subject: bnx2x: fix registers dumped Under traffic, there are several registers that when read (e.g., via 'ethtool -d') may cause the chip to stall. This patch corrects the registers read in such flows. Signed-off-by: Dmitry Kravkov Signed-off-by: Yuval Mintz Signed-off-by: Eilon Greenstein Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnx2x/bnx2x_dump.h | 25 +++++++--------------- .../net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c | 2 +- 2 files changed, 9 insertions(+), 18 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dump.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dump.h index 3e4cff9b1ebe..b926f58e983b 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dump.h +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dump.h @@ -401,11 +401,11 @@ static const struct reg_addr reg_addrs[] = { { 0x70000, 8, RI_ALL_ONLINE }, { 0x70020, 8184, RI_ALL_OFFLINE }, { 0x78000, 8192, RI_E3E3B0_OFFLINE }, - { 0x85000, 3, RI_ALL_ONLINE }, - { 0x8501c, 7, RI_ALL_ONLINE }, - { 0x85048, 1, RI_ALL_ONLINE }, - { 0x85200, 32, RI_ALL_ONLINE }, - { 0xb0000, 16384, RI_E1H_ONLINE }, + { 0x85000, 3, RI_ALL_OFFLINE }, + { 0x8501c, 7, RI_ALL_OFFLINE }, + { 0x85048, 1, RI_ALL_OFFLINE }, + { 0x85200, 32, RI_ALL_OFFLINE }, + { 0xb0000, 16384, RI_E1H_OFFLINE }, { 0xc1000, 7, RI_ALL_ONLINE }, { 0xc103c, 2, RI_E2E3E3B0_ONLINE }, { 0xc1800, 2, RI_ALL_ONLINE }, @@ -581,17 +581,12 @@ static const struct reg_addr reg_addrs[] = { { 0x140188, 3, RI_E1E1HE2E3_ONLINE }, { 0x140194, 13, RI_ALL_ONLINE }, { 0x140200, 6, RI_E1E1HE2E3_ONLINE }, - { 0x140220, 4, RI_E2E3_ONLINE }, - { 0x140240, 4, RI_E2E3_ONLINE }, { 0x140260, 4, RI_E2E3_ONLINE }, { 0x140280, 4, RI_E2E3_ONLINE }, - { 0x1402a0, 4, RI_E2E3_ONLINE }, - { 0x1402c0, 4, RI_E2E3_ONLINE }, { 0x1402e0, 2, RI_E2E3_ONLINE }, { 0x1402e8, 2, RI_E2E3E3B0_ONLINE }, { 0x1402f0, 9, RI_E2E3_ONLINE }, { 0x140314, 44, RI_E3B0_ONLINE }, - { 0x1403d0, 70, RI_E3B0_ONLINE }, { 0x144000, 4, RI_E1E1H_ONLINE }, { 0x148000, 4, RI_E1E1H_ONLINE }, { 0x14c000, 4, RI_E1E1H_ONLINE }, @@ -704,7 +699,6 @@ static const struct reg_addr reg_addrs[] = { { 0x180398, 1, RI_E2E3E3B0_ONLINE }, { 0x1803a0, 5, RI_E2E3E3B0_ONLINE }, { 0x1803b4, 2, RI_E3E3B0_ONLINE }, - { 0x180400, 1, RI_ALL_ONLINE }, { 0x180404, 255, RI_E1E1H_OFFLINE }, { 0x181000, 4, RI_ALL_ONLINE }, { 0x181010, 1020, RI_ALL_OFFLINE }, @@ -800,9 +794,9 @@ static const struct reg_addr reg_addrs[] = { { 0x1b905c, 1, RI_E3E3B0_ONLINE }, { 0x1b9064, 1, RI_E3B0_ONLINE }, { 0x1b9080, 10, RI_E3B0_ONLINE }, - { 0x1b9400, 14, RI_E2E3E3B0_ONLINE }, - { 0x1b943c, 19, RI_E2E3E3B0_ONLINE }, - { 0x1b9490, 10, RI_E2E3E3B0_ONLINE }, + { 0x1b9400, 14, RI_E2E3E3B0_OFFLINE }, + { 0x1b943c, 19, RI_E2E3E3B0_OFFLINE }, + { 0x1b9490, 10, RI_E2E3E3B0_OFFLINE }, { 0x1c0000, 2, RI_ALL_ONLINE }, { 0x200000, 65, RI_ALL_ONLINE }, { 0x20014c, 2, RI_E1HE2E3E3B0_ONLINE }, @@ -814,7 +808,6 @@ static const struct reg_addr reg_addrs[] = { { 0x200398, 1, RI_E2E3E3B0_ONLINE }, { 0x2003a0, 1, RI_E2E3E3B0_ONLINE }, { 0x2003a8, 2, RI_E2E3E3B0_ONLINE }, - { 0x200400, 1, RI_ALL_ONLINE }, { 0x200404, 255, RI_E1E1H_OFFLINE }, { 0x202000, 4, RI_ALL_ONLINE }, { 0x202010, 2044, RI_ALL_OFFLINE }, @@ -921,7 +914,6 @@ static const struct reg_addr reg_addrs[] = { { 0x280398, 1, RI_E2E3E3B0_ONLINE }, { 0x2803a0, 1, RI_E2E3E3B0_ONLINE }, { 0x2803a8, 2, RI_E2E3E3B0_ONLINE }, - { 0x280400, 1, RI_ALL_ONLINE }, { 0x280404, 255, RI_E1E1H_OFFLINE }, { 0x282000, 4, RI_ALL_ONLINE }, { 0x282010, 2044, RI_ALL_OFFLINE }, @@ -1031,7 +1023,6 @@ static const struct reg_addr reg_addrs[] = { { 0x300398, 1, RI_E2E3E3B0_ONLINE }, { 0x3003a0, 1, RI_E2E3E3B0_ONLINE }, { 0x3003a8, 2, RI_E2E3E3B0_ONLINE }, - { 0x300400, 1, RI_ALL_ONLINE }, { 0x300404, 255, RI_E1E1H_OFFLINE }, { 0x302000, 4, RI_ALL_ONLINE }, { 0x302010, 2044, RI_ALL_OFFLINE }, diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c index bbf4cf00dd19..ebf40cd7aa10 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c @@ -775,7 +775,7 @@ static void bnx2x_get_regs(struct net_device *dev, struct bnx2x *bp = netdev_priv(dev); struct dump_hdr dump_hdr = {0}; - regs->version = 0; + regs->version = 1; memset(p, 0, regs->len); if (!netif_running(bp->dev)) -- cgit v1.2.1 From 7b5342d9026d537cbc01fd30b7cd9bac9b07b5ad Mon Sep 17 00:00:00 2001 From: Yuval Mintz Date: Tue, 11 Sep 2012 04:34:14 +0000 Subject: bnx2x: Add missing afex code Commit a334872224a67b614dc888460377862621f3dac7 added afex support but lacked several logical changes. This lack can cause afex to crash, and also have a slight effect on other flows (i.e., driver always assumes the Tx ring has less available buffers than what it actually has). This patch adds the missing segments, fixing said issues. Signed-off-by: Yuval Mintz Signed-off-by: Barak Witkowski Signed-off-by: Dmitry Kravkov Signed-off-by: Eilon Greenstein Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h | 11 +++++------ drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c | 21 ++++++++++++++++----- 2 files changed, 21 insertions(+), 11 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h index 21b553229ea4..dfd86a55f1dc 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h @@ -710,17 +710,15 @@ static inline u16 bnx2x_tx_avail(struct bnx2x *bp, prod = txdata->tx_bd_prod; cons = txdata->tx_bd_cons; - /* NUM_TX_RINGS = number of "next-page" entries - It will be used as a threshold */ - used = SUB_S16(prod, cons) + (s16)NUM_TX_RINGS; + used = SUB_S16(prod, cons); #ifdef BNX2X_STOP_ON_ERROR WARN_ON(used < 0); - WARN_ON(used > bp->tx_ring_size); - WARN_ON((bp->tx_ring_size - used) > MAX_TX_AVAIL); + WARN_ON(used > txdata->tx_ring_size); + WARN_ON((txdata->tx_ring_size - used) > MAX_TX_AVAIL); #endif - return (s16)(bp->tx_ring_size) - used; + return (s16)(txdata->tx_ring_size) - used; } static inline int bnx2x_tx_queue_has_work(struct bnx2x_fp_txdata *txdata) @@ -1088,6 +1086,7 @@ static inline void bnx2x_init_txdata(struct bnx2x *bp, txdata->txq_index = txq_index; txdata->tx_cons_sb = tx_cons_sb; txdata->parent_fp = fp; + txdata->tx_ring_size = IS_FCOE_FP(fp) ? MAX_TX_AVAIL : bp->tx_ring_size; DP(NETIF_MSG_IFUP, "created tx data cid %d, txq %d\n", txdata->cid, txdata->txq_index); diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c index 21054987257a..211753e01f81 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c @@ -7561,8 +7561,14 @@ int bnx2x_set_mac_one(struct bnx2x *bp, u8 *mac, } rc = bnx2x_config_vlan_mac(bp, &ramrod_param); - if (rc < 0) + + if (rc == -EEXIST) { + DP(BNX2X_MSG_SP, "Failed to schedule ADD operations: %d\n", rc); + /* do not treat adding same MAC as error */ + rc = 0; + } else if (rc < 0) BNX2X_ERR("%s MAC failed\n", (set ? "Set" : "Del")); + return rc; } @@ -10294,13 +10300,11 @@ static void __devinit bnx2x_get_fcoe_info(struct bnx2x *bp) dev_info.port_hw_config[port]. fcoe_wwn_node_name_lower); } else if (!IS_MF_SD(bp)) { - u32 cfg = MF_CFG_RD(bp, func_ext_config[func].func_cfg); - /* * Read the WWN info only if the FCoE feature is enabled for * this function. */ - if (cfg & MACP_FUNC_CFG_FLAGS_FCOE_OFFLOAD) + if (BNX2X_MF_EXT_PROTOCOL_FCOE(bp) && !CHIP_IS_E1x(bp)) bnx2x_get_ext_wwn_info(bp, func); } else if (IS_MF_FCOE_SD(bp)) @@ -11073,7 +11077,14 @@ static int bnx2x_set_uc_list(struct bnx2x *bp) netdev_for_each_uc_addr(ha, dev) { rc = bnx2x_set_mac_one(bp, bnx2x_uc_addr(ha), mac_obj, true, BNX2X_UC_LIST_MAC, &ramrod_flags); - if (rc < 0) { + if (rc == -EEXIST) { + DP(BNX2X_MSG_SP, + "Failed to schedule ADD operations: %d\n", rc); + /* do not treat adding same MAC as error */ + rc = 0; + + } else if (rc < 0) { + BNX2X_ERR("Failed to schedule ADD operations: %d\n", rc); return rc; -- cgit v1.2.1 From 07f377da7e8a7d3c3a6626333516f9c808637c9e Mon Sep 17 00:00:00 2001 From: Bernhard Froemel Date: Sat, 25 Aug 2012 10:30:49 +0200 Subject: apple-gmux: Obtain version info from indexed gmux This patch extracts and displays version information from the indexed gmux device as it is also done for the classic gmux device. Signed-off-by: Bernhard Froemel Signed-off-by: Matthew Garrett --- drivers/platform/x86/apple-gmux.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/drivers/platform/x86/apple-gmux.c b/drivers/platform/x86/apple-gmux.c index dfb1a92ce949..c9558d1ea88c 100644 --- a/drivers/platform/x86/apple-gmux.c +++ b/drivers/platform/x86/apple-gmux.c @@ -461,18 +461,22 @@ static int __devinit gmux_probe(struct pnp_dev *pnp, ver_release = gmux_read8(gmux_data, GMUX_PORT_VERSION_RELEASE); if (ver_major == 0xff && ver_minor == 0xff && ver_release == 0xff) { if (gmux_is_indexed(gmux_data)) { + u32 version; mutex_init(&gmux_data->index_lock); gmux_data->indexed = true; + version = gmux_read32(gmux_data, + GMUX_PORT_VERSION_MAJOR); + ver_major = (version >> 24) & 0xff; + ver_minor = (version >> 16) & 0xff; + ver_release = (version >> 8) & 0xff; } else { pr_info("gmux device not present\n"); ret = -ENODEV; goto err_release; } - pr_info("Found indexed gmux\n"); - } else { - pr_info("Found gmux version %d.%d.%d\n", ver_major, ver_minor, - ver_release); } + pr_info("Found gmux version %d.%d.%d [%s]\n", ver_major, ver_minor, + ver_release, (gmux_data->indexed ? "indexed" : "classic")); memset(&props, 0, sizeof(props)); props.type = BACKLIGHT_PLATFORM; -- cgit v1.2.1 From c5a5052923c55990e32a3d64bdb4779b01162646 Mon Sep 17 00:00:00 2001 From: Bernhard Froemel Date: Sat, 25 Aug 2012 10:30:48 +0200 Subject: apple-gmux: Fix index read functions Study of Apple's binary driver revealed that the GMUX_READ_PORT should be written between calls to gmux_index_wait_ready and gmux_index_wait_complete (i.e., the new index protocol must be followed). If this is not done correctly, the indexed gmux device only partially accepts writes which lead to problems concerning GPU switching. Special thanks to Seth Forshee who helped greatly with identifying unnecessary changes. Signed-off-by: Bernhard Froemel Signed-off-by: Matthew Garrett --- drivers/platform/x86/apple-gmux.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/platform/x86/apple-gmux.c b/drivers/platform/x86/apple-gmux.c index c9558d1ea88c..0e43477de337 100644 --- a/drivers/platform/x86/apple-gmux.c +++ b/drivers/platform/x86/apple-gmux.c @@ -142,8 +142,9 @@ static u8 gmux_index_read8(struct apple_gmux_data *gmux_data, int port) u8 val; mutex_lock(&gmux_data->index_lock); - outb((port & 0xff), gmux_data->iostart + GMUX_PORT_READ); gmux_index_wait_ready(gmux_data); + outb((port & 0xff), gmux_data->iostart + GMUX_PORT_READ); + gmux_index_wait_complete(gmux_data); val = inb(gmux_data->iostart + GMUX_PORT_VALUE); mutex_unlock(&gmux_data->index_lock); @@ -166,8 +167,9 @@ static u32 gmux_index_read32(struct apple_gmux_data *gmux_data, int port) u32 val; mutex_lock(&gmux_data->index_lock); - outb((port & 0xff), gmux_data->iostart + GMUX_PORT_READ); gmux_index_wait_ready(gmux_data); + outb((port & 0xff), gmux_data->iostart + GMUX_PORT_READ); + gmux_index_wait_complete(gmux_data); val = inl(gmux_data->iostart + GMUX_PORT_VALUE); mutex_unlock(&gmux_data->index_lock); -- cgit v1.2.1 From e6d9d3d59ca08fc87688c5953061b4da0d17bf15 Mon Sep 17 00:00:00 2001 From: Seth Forshee Date: Tue, 21 Aug 2012 21:56:49 -0500 Subject: apple-gmux: Fix port address calculation in gmux_pio_write32() This function fails to add the start address of the gmux I/O range to the requested port address and thus writes to the wrong location. Signed-off-by: Seth Forshee Signed-off-by: Matthew Garrett --- drivers/platform/x86/apple-gmux.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/platform/x86/apple-gmux.c b/drivers/platform/x86/apple-gmux.c index 0e43477de337..5c17ba895692 100644 --- a/drivers/platform/x86/apple-gmux.c +++ b/drivers/platform/x86/apple-gmux.c @@ -101,7 +101,7 @@ static void gmux_pio_write32(struct apple_gmux_data *gmux_data, int port, for (i = 0; i < 4; i++) { tmpval = (val >> (i * 8)) & 0xff; - outb(tmpval, port + i); + outb(tmpval, gmux_data->iostart + port + i); } } -- cgit v1.2.1 From 689db7843d503fae0eb46cb849e4caab35588170 Mon Sep 17 00:00:00 2001 From: Corentin Chary Date: Mon, 20 Aug 2012 23:01:50 +0200 Subject: drivers-platform-x86: remove useless #ifdef CONFIG_ACPI_VIDEO Signed-off-by: Corentin Chary Signed-off-by: Matthew Garrett --- drivers/platform/x86/acer-wmi.c | 2 -- drivers/platform/x86/apple-gmux.c | 4 ---- drivers/platform/x86/asus-wmi.c | 4 ---- drivers/platform/x86/samsung-laptop.c | 4 ---- 4 files changed, 14 deletions(-) diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c index 3782e1cd3697..934d861a3235 100644 --- a/drivers/platform/x86/acer-wmi.c +++ b/drivers/platform/x86/acer-wmi.c @@ -2196,10 +2196,8 @@ static int __init acer_wmi_init(void) interface->capability &= ~ACER_CAP_BRIGHTNESS; pr_info("Brightness must be controlled by acpi video driver\n"); } else { -#ifdef CONFIG_ACPI_VIDEO pr_info("Disabling ACPI video driver\n"); acpi_video_unregister(); -#endif } if (wmi_has_guid(WMID_GUID3)) { diff --git a/drivers/platform/x86/apple-gmux.c b/drivers/platform/x86/apple-gmux.c index 5c17ba895692..db8f63841b42 100644 --- a/drivers/platform/x86/apple-gmux.c +++ b/drivers/platform/x86/apple-gmux.c @@ -511,9 +511,7 @@ static int __devinit gmux_probe(struct pnp_dev *pnp, * Disable the other backlight choices. */ acpi_video_dmi_promote_vendor(); -#if defined (CONFIG_ACPI_VIDEO) || defined (CONFIG_ACPI_VIDEO_MODULE) acpi_video_unregister(); -#endif apple_bl_unregister(); gmux_data->power_state = VGA_SWITCHEROO_ON; @@ -599,9 +597,7 @@ static void __devexit gmux_remove(struct pnp_dev *pnp) kfree(gmux_data); acpi_video_dmi_demote_vendor(); -#if defined (CONFIG_ACPI_VIDEO) || defined (CONFIG_ACPI_VIDEO_MODULE) acpi_video_register(); -#endif apple_bl_register(); } diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c index 2eb9fe8e8efd..c0e9ff489b24 100644 --- a/drivers/platform/x86/asus-wmi.c +++ b/drivers/platform/x86/asus-wmi.c @@ -47,9 +47,7 @@ #include #include #include -#ifdef CONFIG_ACPI_VIDEO #include -#endif #include "asus-wmi.h" @@ -1704,10 +1702,8 @@ static int asus_wmi_add(struct platform_device *pdev) if (asus->driver->quirks->wmi_backlight_power) acpi_video_dmi_promote_vendor(); if (!acpi_video_backlight_support()) { -#ifdef CONFIG_ACPI_VIDEO pr_info("Disabling ACPI video driver\n"); acpi_video_unregister(); -#endif err = asus_wmi_backlight_init(asus); if (err && err != -ENODEV) goto fail_backlight; diff --git a/drivers/platform/x86/samsung-laptop.c b/drivers/platform/x86/samsung-laptop.c index c1ca7bcebb66..dd90d15f5210 100644 --- a/drivers/platform/x86/samsung-laptop.c +++ b/drivers/platform/x86/samsung-laptop.c @@ -26,9 +26,7 @@ #include #include #include -#ifdef CONFIG_ACPI_VIDEO #include -#endif /* * This driver is needed because a number of Samsung laptops do not hook @@ -1558,9 +1556,7 @@ static int __init samsung_init(void) samsung->handle_backlight = false; } else if (samsung->quirks->broken_acpi_video) { pr_info("Disabling ACPI video driver\n"); -#ifdef CONFIG_ACPI_VIDEO acpi_video_unregister(); -#endif } #endif -- cgit v1.2.1 From 8871e99f89b7d7b1ea99de550eea2a56273f42ab Mon Sep 17 00:00:00 2001 From: Corentin Chary Date: Mon, 20 Aug 2012 23:01:51 +0200 Subject: asus-laptop: HRWS/HWRS typo Resolves-bug: https://bugzilla.kernel.org/show_bug.cgi?id=24222 Signed-off-by: Corentin Chary Signed-off-by: Matthew Garrett --- drivers/platform/x86/asus-laptop.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/platform/x86/asus-laptop.c b/drivers/platform/x86/asus-laptop.c index e38f91be0b10..110c7778cbf9 100644 --- a/drivers/platform/x86/asus-laptop.c +++ b/drivers/platform/x86/asus-laptop.c @@ -863,9 +863,9 @@ static ssize_t show_infos(struct device *dev, * The significance of others is yet to be found. * If we don't find the method, we assume the device are present. */ - rv = acpi_evaluate_integer(asus->handle, "HRWS", NULL, &temp); + rv = acpi_evaluate_integer(asus->handle, "HWRS", NULL, &temp); if (!ACPI_FAILURE(rv)) - len += sprintf(page + len, "HRWS value : %#x\n", + len += sprintf(page + len, "HWRS value : %#x\n", (uint) temp); /* * Another value for userspace: the ASYM method returns 0x02 for @@ -1751,9 +1751,9 @@ static int asus_laptop_get_info(struct asus_laptop *asus) * The significance of others is yet to be found. */ status = - acpi_evaluate_integer(asus->handle, "HRWS", NULL, &hwrs_result); + acpi_evaluate_integer(asus->handle, "HWRS", NULL, &hwrs_result); if (!ACPI_FAILURE(status)) - pr_notice(" HRWS returned %x", (int)hwrs_result); + pr_notice(" HWRS returned %x", (int)hwrs_result); if (!acpi_check_handle(asus->handle, METHOD_WL_STATUS, NULL)) asus->have_rsts = true; -- cgit v1.2.1 From 3f5449bf39896587ca9f87b76832c5aa30f0f5c7 Mon Sep 17 00:00:00 2001 From: Maxim Nikulin Date: Mon, 20 Aug 2012 23:01:52 +0200 Subject: platform/x86: fix asus_laptop.wled_type description MODULE_PARM_DESC for wlan_status is further in the same file Signed-off-by: Maxim A. Nikulin Signed-off-by: Corentin Chary Signed-off-by: Matthew Garrett --- drivers/platform/x86/asus-laptop.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/platform/x86/asus-laptop.c b/drivers/platform/x86/asus-laptop.c index 110c7778cbf9..4b568df56643 100644 --- a/drivers/platform/x86/asus-laptop.c +++ b/drivers/platform/x86/asus-laptop.c @@ -85,7 +85,7 @@ static char *wled_type = "unknown"; static char *bled_type = "unknown"; module_param(wled_type, charp, 0444); -MODULE_PARM_DESC(wlan_status, "Set the wled type on boot " +MODULE_PARM_DESC(wled_type, "Set the wled type on boot " "(unknown, led or rfkill). " "default is unknown"); -- cgit v1.2.1 From f661848b74b33069b0b7068c414bd282c407781d Mon Sep 17 00:00:00 2001 From: Jiang Liu Date: Fri, 14 Sep 2012 00:21:59 +0800 Subject: eeepc-laptop: fix device reference count leakage in eeepc_rfkill_hotplug() Fix a device reference count leakage issue in function eeepc_rfkill_hotplug(). Signed-off-by: Jiang Liu Signed-off-by: Bjorn Helgaas Signed-off-by: Matthew Garrett --- drivers/platform/x86/eeepc-laptop.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c index dab91b48d22c..5ca264179f4e 100644 --- a/drivers/platform/x86/eeepc-laptop.c +++ b/drivers/platform/x86/eeepc-laptop.c @@ -610,12 +610,12 @@ static void eeepc_rfkill_hotplug(struct eeepc_laptop *eeepc, acpi_handle handle) if (!bus) { pr_warn("Unable to find PCI bus 1?\n"); - goto out_unlock; + goto out_put_dev; } if (pci_bus_read_config_dword(bus, 0, PCI_VENDOR_ID, &l)) { pr_err("Unable to read PCI config space?\n"); - goto out_unlock; + goto out_put_dev; } absent = (l == 0xffffffff); @@ -627,7 +627,7 @@ static void eeepc_rfkill_hotplug(struct eeepc_laptop *eeepc, acpi_handle handle) absent ? "absent" : "present"); pr_warn("skipped wireless hotplug as probably " "inappropriate for this model\n"); - goto out_unlock; + goto out_put_dev; } if (!blocked) { @@ -635,7 +635,7 @@ static void eeepc_rfkill_hotplug(struct eeepc_laptop *eeepc, acpi_handle handle) if (dev) { /* Device already present */ pci_dev_put(dev); - goto out_unlock; + goto out_put_dev; } dev = pci_scan_single_device(bus, 0); if (dev) { @@ -650,6 +650,8 @@ static void eeepc_rfkill_hotplug(struct eeepc_laptop *eeepc, acpi_handle handle) pci_dev_put(dev); } } +out_put_dev: + pci_dev_put(port); } out_unlock: -- cgit v1.2.1 From eceeb4371240aff22e9a535a2bc57d2311820942 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Sat, 1 Sep 2012 12:54:07 -0700 Subject: thinkpad_acpi: buffer overflow in fan_get_status() The acpi_evalf() function modifies four bytes of data but in fan_get_status() we pass a pointer to u8. I have modified the function to use type checking now. Signed-off-by: Dan Carpenter Signed-off-by: Matthew Garrett --- drivers/platform/x86/thinkpad_acpi.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c index 80e377949314..52daaa816e53 100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@ -545,7 +545,7 @@ TPACPI_HANDLE(hkey, ec, "\\_SB.HKEY", /* 600e/x, 770e, 770x */ */ static int acpi_evalf(acpi_handle handle, - void *res, char *method, char *fmt, ...) + int *res, char *method, char *fmt, ...) { char *fmt0 = fmt; struct acpi_object_list params; @@ -606,7 +606,7 @@ static int acpi_evalf(acpi_handle handle, success = (status == AE_OK && out_obj.type == ACPI_TYPE_INTEGER); if (success && res) - *(int *)res = out_obj.integer.value; + *res = out_obj.integer.value; break; case 'v': /* void */ success = status == AE_OK; @@ -7386,17 +7386,18 @@ static int fan_get_status(u8 *status) * Add TPACPI_FAN_RD_ACPI_FANS ? */ switch (fan_status_access_mode) { - case TPACPI_FAN_RD_ACPI_GFAN: + case TPACPI_FAN_RD_ACPI_GFAN: { /* 570, 600e/x, 770e, 770x */ + int res; - if (unlikely(!acpi_evalf(gfan_handle, &s, NULL, "d"))) + if (unlikely(!acpi_evalf(gfan_handle, &res, NULL, "d"))) return -EIO; if (likely(status)) - *status = s & 0x07; + *status = res & 0x07; break; - + } case TPACPI_FAN_RD_TPEC: /* all except 570, 600e/x, 770e, 770x */ if (unlikely(!acpi_ec_read(fan_status_offset, &s))) -- cgit v1.2.1 From 6af773e786ad617b0264ebe06ba60675c01f3e51 Mon Sep 17 00:00:00 2001 From: Nishank Trivedi Date: Wed, 12 Sep 2012 13:32:49 +0000 Subject: pktgen: fix crash with vlan and packet size less than 46 If vlan option is being specified in the pktgen and packet size being requested is less than 46 bytes, despite being illogical request, pktgen should not crash the kernel. BUG: unable to handle kernel paging request at ffff88021fb82000 Process kpktgend_0 (pid: 1184, threadinfo ffff880215f1a000, task ffff880218544530) Call Trace: [] ? pktgen_finalize_skb+0x222/0x300 [pktgen] [] ? build_skb+0x34/0x1c0 [] pktgen_thread_worker+0x5d1/0x1790 [pktgen] [] ? igb_xmit_frame_ring+0xa30/0xa30 [igb] [] ? wake_up_bit+0x40/0x40 [] ? wake_up_bit+0x40/0x40 [] ? spin+0x240/0x240 [pktgen] [] kthread+0x93/0xa0 [] kernel_thread_helper+0x4/0x10 [] ? flush_kthread_worker+0x80/0x80 [] ? gs_change+0x13/0x13 The root cause of why pktgen is not able to handle this case is due to comparison of signed (datalen) and unsigned data (sizeof), which eventually passes a huge number to skb_put(). Signed-off-by: Nishank Trivedi Signed-off-by: David S. Miller --- net/core/pktgen.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/core/pktgen.c b/net/core/pktgen.c index cce9e53528b1..148e73d2c451 100644 --- a/net/core/pktgen.c +++ b/net/core/pktgen.c @@ -2721,7 +2721,7 @@ static struct sk_buff *fill_packet_ipv4(struct net_device *odev, /* Eth + IPh + UDPh + mpls */ datalen = pkt_dev->cur_pkt_size - 14 - 20 - 8 - pkt_dev->pkt_overhead; - if (datalen < sizeof(struct pktgen_hdr)) + if (datalen < 0 || datalen < sizeof(struct pktgen_hdr)) datalen = sizeof(struct pktgen_hdr); udph->source = htons(pkt_dev->cur_udp_src); -- cgit v1.2.1 From 8f7412a792bc989d1bddd3c802282eec09456d57 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Fri, 14 Sep 2012 00:26:24 +0200 Subject: ACPI / PM: Infer parent power state from child if unknown, v2 It turns out that there are ACPI BIOSes defining device objects with _PSx and without either _PSC or _PRx. For devices corresponding to those ACPI objetcs __acpi_bus_get_power() returns ACPI_STATE_UNKNOWN and their initial power states are regarded as unknown as a result. If such a device is a parent of another power-manageable device, the child cannot be put into a low-power state through ACPI, because __acpi_bus_set_power() refuses to change power states of devices whose parents' power states are unknown. To work around this problem, observe that the ACPI power state of a device cannot be higher-power (lower-number) than the power state of its parent. Thus, if the device's _PSC method or the configuration of its power resources indicates that the device is in D0, the device's parent has to be in D0 as well. Consequently, if the parent's power state is unknown when we've just learned that its child's power state is D0, we can safely set the parent's power.state field to ACPI_STATE_D0. Tested-by: Aaron Lu Cc: stable@vger.kernel.org Signed-off-by: Rafael J. Wysocki --- drivers/acpi/bus.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index 9628652e080c..e0596954290b 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -237,6 +237,16 @@ static int __acpi_bus_get_power(struct acpi_device *device, int *state) } else if (result == ACPI_STATE_D3_HOT) { result = ACPI_STATE_D3; } + + /* + * If we were unsure about the device parent's power state up to this + * point, the fact that the device is in D0 implies that the parent has + * to be in D0 too. + */ + if (device->parent && device->parent->power.state == ACPI_STATE_UNKNOWN + && result == ACPI_STATE_D0) + device->parent->power.state = ACPI_STATE_D0; + *state = result; out: -- cgit v1.2.1 From 40bf66ec9791f1452b90b82aadc3b6e6aee201f5 Mon Sep 17 00:00:00 2001 From: Lin Ming Date: Fri, 14 Sep 2012 00:26:33 +0200 Subject: ACPI / PM: Fix resource_lock dead lock in acpi_power_on_device Commit 0090def("ACPI: Add interface to register/unregister device to/from power resources") used resource_lock to protect the devices list that relies on power resource. It caused a mutex dead lock, as below acpi_power_on ---> lock resource_lock __acpi_power_on acpi_power_on_device acpi_power_get_inferred_state acpi_power_get_list_state ---> lock resource_lock This patch adds a new mutex "devices_lock" to protect the devices list and calls acpi_power_on_device in acpi_power_on, instead of __acpi_power_on, after the resource_lock is released. [rjw: Changed data type of a boolean variable to bool.] Signed-off-by: Lin Ming Signed-off-by: Aaron Lu Cc: stable@vger.kernel.org Signed-off-by: Rafael J. Wysocki --- drivers/acpi/power.c | 34 +++++++++++++++++++++++----------- 1 file changed, 23 insertions(+), 11 deletions(-) diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c index fc1803414629..cc2a2dcff336 100644 --- a/drivers/acpi/power.c +++ b/drivers/acpi/power.c @@ -107,6 +107,7 @@ struct acpi_power_resource { /* List of devices relying on this power resource */ struct acpi_power_resource_device *devices; + struct mutex devices_lock; }; static struct list_head acpi_power_resource_list; @@ -225,7 +226,6 @@ static void acpi_power_on_device(struct acpi_power_managed_device *device) static int __acpi_power_on(struct acpi_power_resource *resource) { - struct acpi_power_resource_device *device_list = resource->devices; acpi_status status = AE_OK; status = acpi_evaluate_object(resource->device->handle, "_ON", NULL, NULL); @@ -238,19 +238,15 @@ static int __acpi_power_on(struct acpi_power_resource *resource) ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Power resource [%s] turned on\n", resource->name)); - while (device_list) { - acpi_power_on_device(device_list->device); - - device_list = device_list->next; - } - return 0; } static int acpi_power_on(acpi_handle handle) { int result = 0; + bool resume_device = false; struct acpi_power_resource *resource = NULL; + struct acpi_power_resource_device *device_list; result = acpi_power_get_context(handle, &resource); if (result) @@ -266,10 +262,25 @@ static int acpi_power_on(acpi_handle handle) result = __acpi_power_on(resource); if (result) resource->ref_count--; + else + resume_device = true; } mutex_unlock(&resource->resource_lock); + if (!resume_device) + return result; + + mutex_lock(&resource->devices_lock); + + device_list = resource->devices; + while (device_list) { + acpi_power_on_device(device_list->device); + device_list = device_list->next; + } + + mutex_unlock(&resource->devices_lock); + return result; } @@ -355,7 +366,7 @@ static void __acpi_power_resource_unregister_device(struct device *dev, if (acpi_power_get_context(res_handle, &resource)) return; - mutex_lock(&resource->resource_lock); + mutex_lock(&resource->devices_lock); prev = NULL; curr = resource->devices; while (curr) { @@ -372,7 +383,7 @@ static void __acpi_power_resource_unregister_device(struct device *dev, prev = curr; curr = curr->next; } - mutex_unlock(&resource->resource_lock); + mutex_unlock(&resource->devices_lock); } /* Unlink dev from all power resources in _PR0 */ @@ -414,10 +425,10 @@ static int __acpi_power_resource_register_device( power_resource_device->device = powered_device; - mutex_lock(&resource->resource_lock); + mutex_lock(&resource->devices_lock); power_resource_device->next = resource->devices; resource->devices = power_resource_device; - mutex_unlock(&resource->resource_lock); + mutex_unlock(&resource->devices_lock); return 0; } @@ -721,6 +732,7 @@ static int acpi_power_add(struct acpi_device *device) resource->device = device; mutex_init(&resource->resource_lock); + mutex_init(&resource->devices_lock); strcpy(resource->name, device->pnp.bus_id); strcpy(acpi_device_name(device), ACPI_POWER_DEVICE_NAME); strcpy(acpi_device_class(device), ACPI_POWER_CLASS); -- cgit v1.2.1 From 610bd7da160f76f1644ecb4cd7f39511b49a22cc Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Fri, 14 Sep 2012 13:28:23 +1000 Subject: drm/nouveau: fix booting with plymouth + dumb support We noticed a plymouth bug on Fedora 18, and I then noticed this stupid thinko, fixing it fixed the problem with plymouth. Cc: stable@vger.kernel.org Acked-by: Ben Skeggs Signed-off-by: Dave Airlie --- drivers/gpu/drm/nouveau/nouveau_display.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c index 69688ef5cf46..7e16dc5e6467 100644 --- a/drivers/gpu/drm/nouveau/nouveau_display.c +++ b/drivers/gpu/drm/nouveau/nouveau_display.c @@ -598,7 +598,7 @@ nouveau_display_dumb_create(struct drm_file *file_priv, struct drm_device *dev, args->size = args->pitch * args->height; args->size = roundup(args->size, PAGE_SIZE); - ret = nouveau_gem_new(dev, args->size, 0, TTM_PL_FLAG_VRAM, 0, 0, &bo); + ret = nouveau_gem_new(dev, args->size, 0, NOUVEAU_GEM_DOMAIN_VRAM, 0, 0, &bo); if (ret) return ret; -- cgit v1.2.1 From 4a5b2b269e2780790687cfc7c2fc438cb6d8964e Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Wed, 12 Sep 2012 18:03:26 +0200 Subject: MAINTAINERS: fix tree for current i2c-embedded development Guide people to where their patches can be found these days. Signed-off-by: Wolfram Sang Acked-by: Jean Delvare Acked-by: Ben Dooks --- MAINTAINERS | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/MAINTAINERS b/MAINTAINERS index fdc0119963e7..53cc13c82cb1 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -3388,7 +3388,7 @@ M: "Wolfram Sang (embedded platforms)" L: linux-i2c@vger.kernel.org W: http://i2c.wiki.kernel.org/ T: quilt kernel.org/pub/linux/kernel/people/jdelvare/linux-2.6/jdelvare-i2c/ -T: git git://git.fluff.org/bjdooks/linux.git +T: git git://git.pengutronix.de/git/wsa/linux.git S: Maintained F: Documentation/i2c/ F: drivers/i2c/ -- cgit v1.2.1 From 5f71a3ef3753ac2068009637eee619e163f44b30 Mon Sep 17 00:00:00 2001 From: Thomas Kavanagh Date: Thu, 13 Sep 2012 08:16:55 -0700 Subject: i2c: algo: pca: Fix mode selection for PCA9665 The code currently always selects turbo mode for PCA9665, no matter which clock frequency is configured. This is because it compares the clock frequency against constants reflecting (boundary / 100). Compare against real boundary frequencies to fix the problem. Signed-off-by: Thomas Kavanagh Signed-off-by: Guenter Roeck Signed-off-by: Wolfram Sang --- drivers/i2c/algos/i2c-algo-pca.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/i2c/algos/i2c-algo-pca.c b/drivers/i2c/algos/i2c-algo-pca.c index 73133b1063f0..6f5f98d69af7 100644 --- a/drivers/i2c/algos/i2c-algo-pca.c +++ b/drivers/i2c/algos/i2c-algo-pca.c @@ -476,17 +476,17 @@ static int pca_init(struct i2c_adapter *adap) /* To avoid integer overflow, use clock/100 for calculations */ clock = pca_clock(pca_data) / 100; - if (pca_data->i2c_clock > 10000) { + if (pca_data->i2c_clock > 1000000) { mode = I2C_PCA_MODE_TURBO; min_tlow = 14; min_thi = 5; raise_fall_time = 22; /* Raise 11e-8s, Fall 11e-8s */ - } else if (pca_data->i2c_clock > 4000) { + } else if (pca_data->i2c_clock > 400000) { mode = I2C_PCA_MODE_FASTP; min_tlow = 17; min_thi = 9; raise_fall_time = 22; /* Raise 11e-8s, Fall 11e-8s */ - } else if (pca_data->i2c_clock > 1000) { + } else if (pca_data->i2c_clock > 100000) { mode = I2C_PCA_MODE_FAST; min_tlow = 44; min_thi = 20; -- cgit v1.2.1 From 7149f2558d5b5b988726662fe58b1c388337805b Mon Sep 17 00:00:00 2001 From: Tyler Hicks Date: Wed, 12 Sep 2012 18:02:46 -0700 Subject: eCryptfs: Write out all dirty pages just before releasing the lower file Fixes a regression caused by: 821f749 eCryptfs: Revert to a writethrough cache model That patch reverted some code (specifically, 32001d6f) that was necessary to properly handle open() -> mmap() -> close() -> dirty pages -> munmap(), because the lower file could be closed before the dirty pages are written out. Rather than reapplying 32001d6f, this approach is a better way of ensuring that the lower file is still open in order to handle writing out the dirty pages. It is called from ecryptfs_release(), while we have a lock on the lower file pointer, just before the lower file gets the final fput() and we overwrite the pointer. https://launchpad.net/bugs/1047261 Signed-off-by: Tyler Hicks Reported-by: Artemy Tregubenko Tested-by: Artemy Tregubenko Tested-by: Colin Ian King --- fs/ecryptfs/main.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/ecryptfs/main.c b/fs/ecryptfs/main.c index 2768138eefee..9b627c15010a 100644 --- a/fs/ecryptfs/main.c +++ b/fs/ecryptfs/main.c @@ -162,6 +162,7 @@ void ecryptfs_put_lower_file(struct inode *inode) inode_info = ecryptfs_inode_to_private(inode); if (atomic_dec_and_mutex_lock(&inode_info->lower_file_count, &inode_info->lower_file_mutex)) { + filemap_write_and_wait(inode->i_mapping); fput(inode_info->lower_file); inode_info->lower_file = NULL; mutex_unlock(&inode_info->lower_file_mutex); -- cgit v1.2.1 From 64e6651dcc10e9d2cc6230208a8e6c2cfd19ae18 Mon Sep 17 00:00:00 2001 From: Tyler Hicks Date: Wed, 12 Sep 2012 18:38:00 -0700 Subject: eCryptfs: Call lower ->flush() from ecryptfs_flush() Since eCryptfs only calls fput() on the lower file in ecryptfs_release(), eCryptfs should call the lower filesystem's ->flush() from ecryptfs_flush(). If the lower filesystem implements ->flush(), then eCryptfs should try to flush out any dirty pages prior to calling the lower ->flush(). If the lower filesystem does not implement ->flush(), then eCryptfs has no need to do anything in ecryptfs_flush() since dirty pages are now written out to the lower filesystem in ecryptfs_release(). Signed-off-by: Tyler Hicks --- fs/ecryptfs/file.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/fs/ecryptfs/file.c b/fs/ecryptfs/file.c index 44ce5c6a541d..d45ba4568128 100644 --- a/fs/ecryptfs/file.c +++ b/fs/ecryptfs/file.c @@ -275,8 +275,14 @@ out: static int ecryptfs_flush(struct file *file, fl_owner_t td) { - return file->f_mode & FMODE_WRITE - ? filemap_write_and_wait(file->f_mapping) : 0; + struct file *lower_file = ecryptfs_file_to_lower(file); + + if (lower_file->f_op && lower_file->f_op->flush) { + filemap_write_and_wait(file->f_mapping); + return lower_file->f_op->flush(lower_file, td); + } + + return 0; } static int ecryptfs_release(struct inode *inode, struct file *file) -- cgit v1.2.1 From 8335eafc2859e1a26282bef7c3d19f3d68868b8a Mon Sep 17 00:00:00 2001 From: Tyler Hicks Date: Thu, 13 Sep 2012 12:00:56 -0700 Subject: eCryptfs: Copy up attributes of the lower target inode after rename After calling into the lower filesystem to do a rename, the lower target inode's attributes were not copied up to the eCryptfs target inode. This resulted in the eCryptfs target inode staying around, rather than being evicted, because i_nlink was not updated for the eCryptfs inode. This also meant that eCryptfs didn't do the final iput() on the lower target inode so it stayed around, as well. This would result in a failure to free up space occupied by the target file in the rename() operation. Both target inodes would eventually be evicted when the eCryptfs filesystem was unmounted. This patch calls fsstack_copy_attr_all() after the lower filesystem does its ->rename() so that important inode attributes, such as i_nlink, are updated at the eCryptfs layer. ecryptfs_evict_inode() is now called and eCryptfs can drop its final reference on the lower inode. http://launchpad.net/bugs/561129 Signed-off-by: Tyler Hicks Tested-by: Colin Ian King Cc: [2.6.39+] --- fs/ecryptfs/inode.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c index 534b129ea676..cc7709e7c508 100644 --- a/fs/ecryptfs/inode.c +++ b/fs/ecryptfs/inode.c @@ -619,6 +619,7 @@ ecryptfs_rename(struct inode *old_dir, struct dentry *old_dentry, struct dentry *lower_old_dir_dentry; struct dentry *lower_new_dir_dentry; struct dentry *trap = NULL; + struct inode *target_inode; lower_old_dentry = ecryptfs_dentry_to_lower(old_dentry); lower_new_dentry = ecryptfs_dentry_to_lower(new_dentry); @@ -626,6 +627,7 @@ ecryptfs_rename(struct inode *old_dir, struct dentry *old_dentry, dget(lower_new_dentry); lower_old_dir_dentry = dget_parent(lower_old_dentry); lower_new_dir_dentry = dget_parent(lower_new_dentry); + target_inode = new_dentry->d_inode; trap = lock_rename(lower_old_dir_dentry, lower_new_dir_dentry); /* source should not be ancestor of target */ if (trap == lower_old_dentry) { @@ -641,6 +643,9 @@ ecryptfs_rename(struct inode *old_dir, struct dentry *old_dentry, lower_new_dir_dentry->d_inode, lower_new_dentry); if (rc) goto out_lock; + if (target_inode) + fsstack_copy_attr_all(target_inode, + ecryptfs_inode_to_lower(target_inode)); fsstack_copy_attr_all(new_dir, lower_new_dir_dentry->d_inode); if (new_dir != old_dir) fsstack_copy_attr_all(old_dir, lower_old_dir_dentry->d_inode); -- cgit v1.2.1 From 985b11fa8064d55d0d5a84e68667434598911bb2 Mon Sep 17 00:00:00 2001 From: Bo Shen Date: Fri, 14 Sep 2012 16:09:09 +0800 Subject: ASoC: wm8904: correct the index Signed-off-by: Bo Shen Signed-off-by: Mark Brown --- sound/soc/codecs/wm8904.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/codecs/wm8904.c b/sound/soc/codecs/wm8904.c index 0013afe48e66..dc4262eea4b7 100644 --- a/sound/soc/codecs/wm8904.c +++ b/sound/soc/codecs/wm8904.c @@ -100,7 +100,7 @@ static const struct reg_default wm8904_reg_defaults[] = { { 14, 0x0000 }, /* R14 - Power Management 2 */ { 15, 0x0000 }, /* R15 - Power Management 3 */ { 18, 0x0000 }, /* R18 - Power Management 6 */ - { 19, 0x945E }, /* R20 - Clock Rates 0 */ + { 20, 0x945E }, /* R20 - Clock Rates 0 */ { 21, 0x0C05 }, /* R21 - Clock Rates 1 */ { 22, 0x0006 }, /* R22 - Clock Rates 2 */ { 24, 0x0050 }, /* R24 - Audio Interface 0 */ -- cgit v1.2.1 From f25b70613c048ceb1df052576fda03321ebf41cf Mon Sep 17 00:00:00 2001 From: Aaron Lu Date: Fri, 14 Sep 2012 20:54:44 +0200 Subject: ACPI / PM: Use KERN_DEBUG when no power resources are found commit a606dac368eed5696fb38e16b1394f1d049c09e9 adds support to link devices which have _PRx, if a device does not have _PRx, a warning message will be printed. This commit is for ZPODD on Intel ZPODD capable platforms, on other platforms, it has no problem if there is no power resource for this device, so a warning here is not appropriate, change it to debug. Reported-by: Borislav Petkov Signed-off-by: Aaron Lu Cc: stable@vger.kernel.org Signed-off-by: Rafael J. Wysocki --- drivers/acpi/power.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c index cc2a2dcff336..40e38a06ba85 100644 --- a/drivers/acpi/power.c +++ b/drivers/acpi/power.c @@ -473,7 +473,7 @@ int acpi_power_resource_register_device(struct device *dev, acpi_handle handle) return ret; no_power_resource: - printk(KERN_WARNING PREFIX "Invalid Power Resource to register!"); + printk(KERN_DEBUG PREFIX "Invalid Power Resource to register!"); return -ENODEV; } EXPORT_SYMBOL_GPL(acpi_power_resource_register_device); -- cgit v1.2.1 From 55815f70147dcfa3ead5738fd56d3574e2e3c1c2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Fri, 14 Sep 2012 14:48:21 -0700 Subject: vfs: make O_PATH file descriptors usable for 'fstat()' MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit We already use them for openat() and friends, but fstat() also wants to be able to use O_PATH file descriptors. This should make it more directly comparable to the O_SEARCH of Solaris. Note that you could already do the same thing with "fstatat()" and an empty path, but just doing "fstat()" directly is simpler and faster, so there is no reason not to just allow it directly. See also commit 332a2e1244bd, which did the same thing for fchdir, for the same reasons. Reported-by: ольга крыжановская Cc: Al Viro Cc: stable@kernel.org # O_PATH introduced in 3.0+ Signed-off-by: Linus Torvalds --- fs/stat.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/stat.c b/fs/stat.c index b6ff11825fc8..40780229a032 100644 --- a/fs/stat.c +++ b/fs/stat.c @@ -58,7 +58,7 @@ EXPORT_SYMBOL(vfs_getattr); int vfs_fstat(unsigned int fd, struct kstat *stat) { int fput_needed; - struct file *f = fget_light(fd, &fput_needed); + struct file *f = fget_raw_light(fd, &fput_needed); int error = -EBADF; if (f) { -- cgit v1.2.1 From f3a87f1b0c4086a408eda48e4c26e32ff80d3124 Mon Sep 17 00:00:00 2001 From: Chris Mason Date: Fri, 14 Sep 2012 20:06:30 -0400 Subject: Revert "Btrfs: fix some error codes in btrfs_qgroup_inherit()" This reverts commit 5986802c2fcc754040bb7ed95f30bb16c4a843b7. Both paths are not error paths but regular cases where non-qgroup subvols are involved. Signed-off-by: Chris Mason --- fs/btrfs/qgroup.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c index 38b42e7bc91d..b65015581744 100644 --- a/fs/btrfs/qgroup.c +++ b/fs/btrfs/qgroup.c @@ -1371,10 +1371,8 @@ int btrfs_qgroup_inherit(struct btrfs_trans_handle *trans, if (srcid) { srcgroup = find_qgroup_rb(fs_info, srcid); - if (!srcgroup) { - ret = -EINVAL; + if (!srcgroup) goto unlock; - } dstgroup->rfer = srcgroup->rfer - level_size; dstgroup->rfer_cmpr = srcgroup->rfer_cmpr - level_size; srcgroup->excl = level_size; @@ -1383,10 +1381,8 @@ int btrfs_qgroup_inherit(struct btrfs_trans_handle *trans, qgroup_dirty(fs_info, srcgroup); } - if (!inherit) { - ret = -EINVAL; + if (!inherit) goto unlock; - } i_qgroups = (u64 *)(inherit + 1); for (i = 0; i < inherit->num_qgroups; ++i) { -- cgit v1.2.1 From 0848c94fb4a5cc213a7fb0fb3a5721ad6e16f096 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Tue, 11 Sep 2012 15:16:36 +0800 Subject: mfd: core: Push irqdomain mapping out into devices Currently the MFD core supports remapping MFD cell interrupts using an irqdomain but only if the MFD is being instantiated using device tree and only if the device tree bindings use the pattern of registering IPs in the device tree with compatible properties. This will be actively harmful for drivers which support non-DT platforms and use this pattern for their DT bindings as it will mean that the core will silently change remapping behaviour and it is also limiting for drivers which don't do DT with this particular pattern. There is also a potential fragility if there are interrupts not associated with MFD cells and all the cells are omitted from the device tree for some reason. Instead change the code to take an IRQ domain as an optional argument, allowing drivers to take the decision about the parent domain for their interrupts. The one current user of this feature is ab8500-core, it has the domain lookup pushed out into the driver. Signed-off-by: Mark Brown Signed-off-by: Samuel Ortiz --- drivers/mfd/88pm800.c | 5 +++-- drivers/mfd/88pm805.c | 3 ++- drivers/mfd/88pm860x-core.c | 21 +++++++++++---------- drivers/mfd/aat2870-core.c | 2 +- drivers/mfd/ab3100-core.c | 2 +- drivers/mfd/ab8500-core.c | 10 +++++----- drivers/mfd/arizona-core.c | 6 +++--- drivers/mfd/asic3.c | 6 +++--- drivers/mfd/cs5535-mfd.c | 2 +- drivers/mfd/da9052-core.c | 2 +- drivers/mfd/davinci_voicecodec.c | 2 +- drivers/mfd/db8500-prcmu.c | 2 +- drivers/mfd/htc-pasic3.c | 5 +++-- drivers/mfd/intel_msic.c | 4 ++-- drivers/mfd/janz-cmodio.c | 2 +- drivers/mfd/jz4740-adc.c | 3 ++- drivers/mfd/lm3533-core.c | 7 ++++--- drivers/mfd/lpc_ich.c | 4 ++-- drivers/mfd/lpc_sch.c | 6 ++++-- drivers/mfd/max77686.c | 2 +- drivers/mfd/max77693.c | 2 +- drivers/mfd/max8925-core.c | 12 ++++++------ drivers/mfd/max8997.c | 2 +- drivers/mfd/max8998.c | 8 ++++---- drivers/mfd/mc13xxx-core.c | 2 +- drivers/mfd/mfd-core.c | 12 ++++++------ drivers/mfd/palmas.c | 3 ++- drivers/mfd/rc5t583.c | 2 +- drivers/mfd/rdc321x-southbridge.c | 3 ++- drivers/mfd/sec-core.c | 8 ++++---- drivers/mfd/sta2x11-mfd.c | 4 ++-- drivers/mfd/stmpe.c | 2 +- drivers/mfd/t7l66xb.c | 2 +- drivers/mfd/tc3589x.c | 8 ++++---- drivers/mfd/tc6387xb.c | 2 +- drivers/mfd/tc6393xb.c | 4 ++-- drivers/mfd/ti-ssp.c | 2 +- drivers/mfd/timberdale.c | 12 ++++++------ drivers/mfd/tps6105x.c | 2 +- drivers/mfd/tps6507x.c | 2 +- drivers/mfd/tps65090.c | 2 +- drivers/mfd/tps65217.c | 2 +- drivers/mfd/tps6586x.c | 3 ++- drivers/mfd/tps65910.c | 2 +- drivers/mfd/tps65912-core.c | 2 +- drivers/mfd/twl4030-audio.c | 2 +- drivers/mfd/twl6040-core.c | 2 +- drivers/mfd/vx855.c | 2 +- drivers/mfd/wl1273-core.c | 2 +- drivers/mfd/wm831x-core.c | 16 ++++++++-------- drivers/mfd/wm8400-core.c | 2 +- drivers/mfd/wm8994-core.c | 4 ++-- drivers/staging/nvec/nvec.c | 2 +- include/linux/mfd/core.h | 4 +++- 54 files changed, 125 insertions(+), 112 deletions(-) diff --git a/drivers/mfd/88pm800.c b/drivers/mfd/88pm800.c index b67a3018b136..ce229ea933d1 100644 --- a/drivers/mfd/88pm800.c +++ b/drivers/mfd/88pm800.c @@ -470,7 +470,8 @@ static int __devinit device_800_init(struct pm80x_chip *chip, ret = mfd_add_devices(chip->dev, 0, &onkey_devs[0], - ARRAY_SIZE(onkey_devs), &onkey_resources[0], 0); + ARRAY_SIZE(onkey_devs), &onkey_resources[0], 0, + NULL); if (ret < 0) { dev_err(chip->dev, "Failed to add onkey subdev\n"); goto out_dev; @@ -481,7 +482,7 @@ static int __devinit device_800_init(struct pm80x_chip *chip, rtc_devs[0].platform_data = pdata->rtc; rtc_devs[0].pdata_size = sizeof(struct pm80x_rtc_pdata); ret = mfd_add_devices(chip->dev, 0, &rtc_devs[0], - ARRAY_SIZE(rtc_devs), NULL, 0); + ARRAY_SIZE(rtc_devs), NULL, 0, NULL); if (ret < 0) { dev_err(chip->dev, "Failed to add rtc subdev\n"); goto out_dev; diff --git a/drivers/mfd/88pm805.c b/drivers/mfd/88pm805.c index 6146583589f6..c20a31136f04 100644 --- a/drivers/mfd/88pm805.c +++ b/drivers/mfd/88pm805.c @@ -216,7 +216,8 @@ static int __devinit device_805_init(struct pm80x_chip *chip) } ret = mfd_add_devices(chip->dev, 0, &codec_devs[0], - ARRAY_SIZE(codec_devs), &codec_resources[0], 0); + ARRAY_SIZE(codec_devs), &codec_resources[0], 0, + NULL); if (ret < 0) { dev_err(chip->dev, "Failed to add codec subdev\n"); goto out_codec; diff --git a/drivers/mfd/88pm860x-core.c b/drivers/mfd/88pm860x-core.c index d09918cf1b15..b73f033b2c60 100644 --- a/drivers/mfd/88pm860x-core.c +++ b/drivers/mfd/88pm860x-core.c @@ -637,7 +637,7 @@ static void __devinit device_bk_init(struct pm860x_chip *chip, bk_devs[i].resources = &bk_resources[j]; ret = mfd_add_devices(chip->dev, 0, &bk_devs[i], 1, - &bk_resources[j], 0); + &bk_resources[j], 0, NULL); if (ret < 0) { dev_err(chip->dev, "Failed to add " "backlight subdev\n"); @@ -672,7 +672,7 @@ static void __devinit device_led_init(struct pm860x_chip *chip, led_devs[i].resources = &led_resources[j], ret = mfd_add_devices(chip->dev, 0, &led_devs[i], 1, - &led_resources[j], 0); + &led_resources[j], 0, NULL); if (ret < 0) { dev_err(chip->dev, "Failed to add " "led subdev\n"); @@ -709,7 +709,7 @@ static void __devinit device_regulator_init(struct pm860x_chip *chip, regulator_devs[i].resources = ®ulator_resources[seq]; ret = mfd_add_devices(chip->dev, 0, ®ulator_devs[i], 1, - ®ulator_resources[seq], 0); + ®ulator_resources[seq], 0, NULL); if (ret < 0) { dev_err(chip->dev, "Failed to add regulator subdev\n"); goto out; @@ -733,7 +733,7 @@ static void __devinit device_rtc_init(struct pm860x_chip *chip, rtc_devs[0].resources = &rtc_resources[0]; ret = mfd_add_devices(chip->dev, 0, &rtc_devs[0], ARRAY_SIZE(rtc_devs), &rtc_resources[0], - chip->irq_base); + chip->irq_base, NULL); if (ret < 0) dev_err(chip->dev, "Failed to add rtc subdev\n"); } @@ -752,7 +752,7 @@ static void __devinit device_touch_init(struct pm860x_chip *chip, touch_devs[0].resources = &touch_resources[0]; ret = mfd_add_devices(chip->dev, 0, &touch_devs[0], ARRAY_SIZE(touch_devs), &touch_resources[0], - chip->irq_base); + chip->irq_base, NULL); if (ret < 0) dev_err(chip->dev, "Failed to add touch subdev\n"); } @@ -770,7 +770,7 @@ static void __devinit device_power_init(struct pm860x_chip *chip, power_devs[0].num_resources = ARRAY_SIZE(battery_resources); power_devs[0].resources = &battery_resources[0], ret = mfd_add_devices(chip->dev, 0, &power_devs[0], 1, - &battery_resources[0], chip->irq_base); + &battery_resources[0], chip->irq_base, NULL); if (ret < 0) dev_err(chip->dev, "Failed to add battery subdev\n"); @@ -779,7 +779,7 @@ static void __devinit device_power_init(struct pm860x_chip *chip, power_devs[1].num_resources = ARRAY_SIZE(charger_resources); power_devs[1].resources = &charger_resources[0], ret = mfd_add_devices(chip->dev, 0, &power_devs[1], 1, - &charger_resources[0], chip->irq_base); + &charger_resources[0], chip->irq_base, NULL); if (ret < 0) dev_err(chip->dev, "Failed to add charger subdev\n"); @@ -788,7 +788,7 @@ static void __devinit device_power_init(struct pm860x_chip *chip, power_devs[2].num_resources = ARRAY_SIZE(preg_resources); power_devs[2].resources = &preg_resources[0], ret = mfd_add_devices(chip->dev, 0, &power_devs[2], 1, - &preg_resources[0], chip->irq_base); + &preg_resources[0], chip->irq_base, NULL); if (ret < 0) dev_err(chip->dev, "Failed to add preg subdev\n"); } @@ -802,7 +802,7 @@ static void __devinit device_onkey_init(struct pm860x_chip *chip, onkey_devs[0].resources = &onkey_resources[0], ret = mfd_add_devices(chip->dev, 0, &onkey_devs[0], ARRAY_SIZE(onkey_devs), &onkey_resources[0], - chip->irq_base); + chip->irq_base, NULL); if (ret < 0) dev_err(chip->dev, "Failed to add onkey subdev\n"); } @@ -815,7 +815,8 @@ static void __devinit device_codec_init(struct pm860x_chip *chip, codec_devs[0].num_resources = ARRAY_SIZE(codec_resources); codec_devs[0].resources = &codec_resources[0], ret = mfd_add_devices(chip->dev, 0, &codec_devs[0], - ARRAY_SIZE(codec_devs), &codec_resources[0], 0); + ARRAY_SIZE(codec_devs), &codec_resources[0], 0, + NULL); if (ret < 0) dev_err(chip->dev, "Failed to add codec subdev\n"); } diff --git a/drivers/mfd/aat2870-core.c b/drivers/mfd/aat2870-core.c index 44a3fdbadef4..f1beb4971f87 100644 --- a/drivers/mfd/aat2870-core.c +++ b/drivers/mfd/aat2870-core.c @@ -424,7 +424,7 @@ static int aat2870_i2c_probe(struct i2c_client *client, } ret = mfd_add_devices(aat2870->dev, 0, aat2870_devs, - ARRAY_SIZE(aat2870_devs), NULL, 0); + ARRAY_SIZE(aat2870_devs), NULL, 0, NULL); if (ret != 0) { dev_err(aat2870->dev, "Failed to add subdev: %d\n", ret); goto out_disable; diff --git a/drivers/mfd/ab3100-core.c b/drivers/mfd/ab3100-core.c index 78fca2902c8d..01781ae5d0d7 100644 --- a/drivers/mfd/ab3100-core.c +++ b/drivers/mfd/ab3100-core.c @@ -946,7 +946,7 @@ static int __devinit ab3100_probe(struct i2c_client *client, } err = mfd_add_devices(&client->dev, 0, ab3100_devs, - ARRAY_SIZE(ab3100_devs), NULL, 0); + ARRAY_SIZE(ab3100_devs), NULL, 0, NULL); ab3100_setup_debugfs(ab3100); diff --git a/drivers/mfd/ab8500-core.c b/drivers/mfd/ab8500-core.c index 626b4ecaf647..47adf800024e 100644 --- a/drivers/mfd/ab8500-core.c +++ b/drivers/mfd/ab8500-core.c @@ -1418,25 +1418,25 @@ static int __devinit ab8500_probe(struct platform_device *pdev) ret = mfd_add_devices(ab8500->dev, 0, abx500_common_devs, ARRAY_SIZE(abx500_common_devs), NULL, - ab8500->irq_base); + ab8500->irq_base, ab8500->domain); if (ret) goto out_freeirq; if (is_ab9540(ab8500)) ret = mfd_add_devices(ab8500->dev, 0, ab9540_devs, ARRAY_SIZE(ab9540_devs), NULL, - ab8500->irq_base); + ab8500->irq_base, ab8500->domain); else ret = mfd_add_devices(ab8500->dev, 0, ab8500_devs, ARRAY_SIZE(ab8500_devs), NULL, - ab8500->irq_base); + ab8500->irq_base, ab8500->domain); if (ret) goto out_freeirq; if (is_ab9540(ab8500) || is_ab8505(ab8500)) ret = mfd_add_devices(ab8500->dev, 0, ab9540_ab8505_devs, ARRAY_SIZE(ab9540_ab8505_devs), NULL, - ab8500->irq_base); + ab8500->irq_base, ab8500->domain); if (ret) goto out_freeirq; @@ -1444,7 +1444,7 @@ static int __devinit ab8500_probe(struct platform_device *pdev) /* Add battery management devices */ ret = mfd_add_devices(ab8500->dev, 0, ab8500_bm_devs, ARRAY_SIZE(ab8500_bm_devs), NULL, - ab8500->irq_base); + ab8500->irq_base, ab8500->domain); if (ret) dev_err(ab8500->dev, "error adding bm devices\n"); } diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c index c7983e862549..1b48f2094806 100644 --- a/drivers/mfd/arizona-core.c +++ b/drivers/mfd/arizona-core.c @@ -316,7 +316,7 @@ int __devinit arizona_dev_init(struct arizona *arizona) } ret = mfd_add_devices(arizona->dev, -1, early_devs, - ARRAY_SIZE(early_devs), NULL, 0); + ARRAY_SIZE(early_devs), NULL, 0, NULL); if (ret != 0) { dev_err(dev, "Failed to add early children: %d\n", ret); return ret; @@ -516,11 +516,11 @@ int __devinit arizona_dev_init(struct arizona *arizona) switch (arizona->type) { case WM5102: ret = mfd_add_devices(arizona->dev, -1, wm5102_devs, - ARRAY_SIZE(wm5102_devs), NULL, 0); + ARRAY_SIZE(wm5102_devs), NULL, 0, NULL); break; case WM5110: ret = mfd_add_devices(arizona->dev, -1, wm5110_devs, - ARRAY_SIZE(wm5102_devs), NULL, 0); + ARRAY_SIZE(wm5102_devs), NULL, 0, NULL); break; } diff --git a/drivers/mfd/asic3.c b/drivers/mfd/asic3.c index 683e18a23329..62f0883a7630 100644 --- a/drivers/mfd/asic3.c +++ b/drivers/mfd/asic3.c @@ -913,14 +913,14 @@ static int __init asic3_mfd_probe(struct platform_device *pdev, if (pdata->clock_rate) { ds1wm_pdata.clock_rate = pdata->clock_rate; ret = mfd_add_devices(&pdev->dev, pdev->id, - &asic3_cell_ds1wm, 1, mem, asic->irq_base); + &asic3_cell_ds1wm, 1, mem, asic->irq_base, NULL); if (ret < 0) goto out; } if (mem_sdio && (irq >= 0)) { ret = mfd_add_devices(&pdev->dev, pdev->id, - &asic3_cell_mmc, 1, mem_sdio, irq); + &asic3_cell_mmc, 1, mem_sdio, irq, NULL); if (ret < 0) goto out; } @@ -934,7 +934,7 @@ static int __init asic3_mfd_probe(struct platform_device *pdev, asic3_cell_leds[i].pdata_size = sizeof(pdata->leds[i]); } ret = mfd_add_devices(&pdev->dev, 0, - asic3_cell_leds, ASIC3_NUM_LEDS, NULL, 0); + asic3_cell_leds, ASIC3_NUM_LEDS, NULL, 0, NULL); } out: diff --git a/drivers/mfd/cs5535-mfd.c b/drivers/mfd/cs5535-mfd.c index 3419e726de47..2b282133c725 100644 --- a/drivers/mfd/cs5535-mfd.c +++ b/drivers/mfd/cs5535-mfd.c @@ -149,7 +149,7 @@ static int __devinit cs5535_mfd_probe(struct pci_dev *pdev, } err = mfd_add_devices(&pdev->dev, -1, cs5535_mfd_cells, - ARRAY_SIZE(cs5535_mfd_cells), NULL, 0); + ARRAY_SIZE(cs5535_mfd_cells), NULL, 0, NULL); if (err) { dev_err(&pdev->dev, "MFD add devices failed: %d\n", err); goto err_disable; diff --git a/drivers/mfd/da9052-core.c b/drivers/mfd/da9052-core.c index 2544910e1fd6..a0a62b24621b 100644 --- a/drivers/mfd/da9052-core.c +++ b/drivers/mfd/da9052-core.c @@ -803,7 +803,7 @@ int __devinit da9052_device_init(struct da9052 *da9052, u8 chip_id) dev_err(da9052->dev, "DA9052 ADC IRQ failed ret=%d\n", ret); ret = mfd_add_devices(da9052->dev, -1, da9052_subdev_info, - ARRAY_SIZE(da9052_subdev_info), NULL, 0); + ARRAY_SIZE(da9052_subdev_info), NULL, 0, NULL); if (ret) goto err; diff --git a/drivers/mfd/davinci_voicecodec.c b/drivers/mfd/davinci_voicecodec.c index 4e2af2cb2d26..45e83a68641b 100644 --- a/drivers/mfd/davinci_voicecodec.c +++ b/drivers/mfd/davinci_voicecodec.c @@ -129,7 +129,7 @@ static int __init davinci_vc_probe(struct platform_device *pdev) cell->pdata_size = sizeof(*davinci_vc); ret = mfd_add_devices(&pdev->dev, pdev->id, davinci_vc->cells, - DAVINCI_VC_CELLS, NULL, 0); + DAVINCI_VC_CELLS, NULL, 0, NULL); if (ret != 0) { dev_err(&pdev->dev, "fail to register client devices\n"); goto fail4; diff --git a/drivers/mfd/db8500-prcmu.c b/drivers/mfd/db8500-prcmu.c index 7040a0081130..0e63cdd9b52a 100644 --- a/drivers/mfd/db8500-prcmu.c +++ b/drivers/mfd/db8500-prcmu.c @@ -3010,7 +3010,7 @@ static int __devinit db8500_prcmu_probe(struct platform_device *pdev) prcmu_config_esram0_deep_sleep(ESRAM0_DEEP_SLEEP_STATE_RET); err = mfd_add_devices(&pdev->dev, 0, db8500_prcmu_devs, - ARRAY_SIZE(db8500_prcmu_devs), NULL, 0); + ARRAY_SIZE(db8500_prcmu_devs), NULL, 0, NULL); if (err) { pr_err("prcmu: Failed to add subdevices\n"); return err; diff --git a/drivers/mfd/htc-pasic3.c b/drivers/mfd/htc-pasic3.c index 04c7093d6499..9e5453d21a68 100644 --- a/drivers/mfd/htc-pasic3.c +++ b/drivers/mfd/htc-pasic3.c @@ -168,7 +168,7 @@ static int __init pasic3_probe(struct platform_device *pdev) /* the first 5 PASIC3 registers control the DS1WM */ ds1wm_resources[0].end = (5 << asic->bus_shift) - 1; ret = mfd_add_devices(&pdev->dev, pdev->id, - &ds1wm_cell, 1, r, irq); + &ds1wm_cell, 1, r, irq, NULL); if (ret < 0) dev_warn(dev, "failed to register DS1WM\n"); } @@ -176,7 +176,8 @@ static int __init pasic3_probe(struct platform_device *pdev) if (pdata && pdata->led_pdata) { led_cell.platform_data = pdata->led_pdata; led_cell.pdata_size = sizeof(struct pasic3_leds_machinfo); - ret = mfd_add_devices(&pdev->dev, pdev->id, &led_cell, 1, r, 0); + ret = mfd_add_devices(&pdev->dev, pdev->id, &led_cell, 1, r, + 0, NULL); if (ret < 0) dev_warn(dev, "failed to register LED device\n"); } diff --git a/drivers/mfd/intel_msic.c b/drivers/mfd/intel_msic.c index 59df5584cb58..266bdc5bd96d 100644 --- a/drivers/mfd/intel_msic.c +++ b/drivers/mfd/intel_msic.c @@ -344,13 +344,13 @@ static int __devinit intel_msic_init_devices(struct intel_msic *msic) continue; ret = mfd_add_devices(&pdev->dev, -1, &msic_devs[i], 1, NULL, - pdata->irq[i]); + pdata->irq[i], NULL); if (ret) goto fail; } ret = mfd_add_devices(&pdev->dev, 0, msic_other_devs, - ARRAY_SIZE(msic_other_devs), NULL, 0); + ARRAY_SIZE(msic_other_devs), NULL, 0, NULL); if (ret) goto fail; diff --git a/drivers/mfd/janz-cmodio.c b/drivers/mfd/janz-cmodio.c index 2ea99989551a..965c4801df8a 100644 --- a/drivers/mfd/janz-cmodio.c +++ b/drivers/mfd/janz-cmodio.c @@ -147,7 +147,7 @@ static int __devinit cmodio_probe_submodules(struct cmodio_device *priv) } return mfd_add_devices(&pdev->dev, 0, priv->cells, - num_probed, NULL, pdev->irq); + num_probed, NULL, pdev->irq, NULL); } /* diff --git a/drivers/mfd/jz4740-adc.c b/drivers/mfd/jz4740-adc.c index 87662a17dec6..c6b6d7dda517 100644 --- a/drivers/mfd/jz4740-adc.c +++ b/drivers/mfd/jz4740-adc.c @@ -287,7 +287,8 @@ static int __devinit jz4740_adc_probe(struct platform_device *pdev) writeb(0xff, adc->base + JZ_REG_ADC_CTRL); ret = mfd_add_devices(&pdev->dev, 0, jz4740_adc_cells, - ARRAY_SIZE(jz4740_adc_cells), mem_base, irq_base); + ARRAY_SIZE(jz4740_adc_cells), mem_base, + irq_base, NULL); if (ret < 0) goto err_clk_put; diff --git a/drivers/mfd/lm3533-core.c b/drivers/mfd/lm3533-core.c index 0b2879b87fd9..24212f45b201 100644 --- a/drivers/mfd/lm3533-core.c +++ b/drivers/mfd/lm3533-core.c @@ -393,7 +393,8 @@ static int __devinit lm3533_device_als_init(struct lm3533 *lm3533) lm3533_als_devs[0].platform_data = pdata->als; lm3533_als_devs[0].pdata_size = sizeof(*pdata->als); - ret = mfd_add_devices(lm3533->dev, 0, lm3533_als_devs, 1, NULL, 0); + ret = mfd_add_devices(lm3533->dev, 0, lm3533_als_devs, 1, NULL, + 0, NULL); if (ret) { dev_err(lm3533->dev, "failed to add ALS device\n"); return ret; @@ -422,7 +423,7 @@ static int __devinit lm3533_device_bl_init(struct lm3533 *lm3533) } ret = mfd_add_devices(lm3533->dev, 0, lm3533_bl_devs, - pdata->num_backlights, NULL, 0); + pdata->num_backlights, NULL, 0, NULL); if (ret) { dev_err(lm3533->dev, "failed to add backlight devices\n"); return ret; @@ -451,7 +452,7 @@ static int __devinit lm3533_device_led_init(struct lm3533 *lm3533) } ret = mfd_add_devices(lm3533->dev, 0, lm3533_led_devs, - pdata->num_leds, NULL, 0); + pdata->num_leds, NULL, 0, NULL); if (ret) { dev_err(lm3533->dev, "failed to add LED devices\n"); return ret; diff --git a/drivers/mfd/lpc_ich.c b/drivers/mfd/lpc_ich.c index a05fdfc2ebcf..092ad4b44b6d 100644 --- a/drivers/mfd/lpc_ich.c +++ b/drivers/mfd/lpc_ich.c @@ -750,7 +750,7 @@ gpe0_done: lpc_ich_finalize_cell(&lpc_ich_cells[LPC_GPIO], id); ret = mfd_add_devices(&dev->dev, -1, &lpc_ich_cells[LPC_GPIO], - 1, NULL, 0); + 1, NULL, 0, NULL); gpio_done: if (acpi_conflict) @@ -807,7 +807,7 @@ static int __devinit lpc_ich_init_wdt(struct pci_dev *dev, lpc_ich_finalize_cell(&lpc_ich_cells[LPC_WDT], id); ret = mfd_add_devices(&dev->dev, -1, &lpc_ich_cells[LPC_WDT], - 1, NULL, 0); + 1, NULL, 0, NULL); wdt_done: return ret; diff --git a/drivers/mfd/lpc_sch.c b/drivers/mfd/lpc_sch.c index 9f20abc5e393..f6b9c5c96b24 100644 --- a/drivers/mfd/lpc_sch.c +++ b/drivers/mfd/lpc_sch.c @@ -127,7 +127,8 @@ static int __devinit lpc_sch_probe(struct pci_dev *dev, lpc_sch_cells[i].id = id->device; ret = mfd_add_devices(&dev->dev, 0, - lpc_sch_cells, ARRAY_SIZE(lpc_sch_cells), NULL, 0); + lpc_sch_cells, ARRAY_SIZE(lpc_sch_cells), NULL, + 0, NULL); if (ret) goto out_dev; @@ -153,7 +154,8 @@ static int __devinit lpc_sch_probe(struct pci_dev *dev, tunnelcreek_cells[i].id = id->device; ret = mfd_add_devices(&dev->dev, 0, tunnelcreek_cells, - ARRAY_SIZE(tunnelcreek_cells), NULL, 0); + ARRAY_SIZE(tunnelcreek_cells), NULL, + 0, NULL); } return ret; diff --git a/drivers/mfd/max77686.c b/drivers/mfd/max77686.c index c03e12b51924..d9e24c849a00 100644 --- a/drivers/mfd/max77686.c +++ b/drivers/mfd/max77686.c @@ -126,7 +126,7 @@ static int max77686_i2c_probe(struct i2c_client *i2c, max77686_irq_init(max77686); ret = mfd_add_devices(max77686->dev, -1, max77686_devs, - ARRAY_SIZE(max77686_devs), NULL, 0); + ARRAY_SIZE(max77686_devs), NULL, 0, NULL); if (ret < 0) goto err_mfd; diff --git a/drivers/mfd/max77693.c b/drivers/mfd/max77693.c index a1811cb50ec7..4fdd03d28539 100644 --- a/drivers/mfd/max77693.c +++ b/drivers/mfd/max77693.c @@ -159,7 +159,7 @@ static int max77693_i2c_probe(struct i2c_client *i2c, pm_runtime_set_active(max77693->dev); ret = mfd_add_devices(max77693->dev, -1, max77693_devs, - ARRAY_SIZE(max77693_devs), NULL, 0); + ARRAY_SIZE(max77693_devs), NULL, 0, NULL); if (ret < 0) goto err_mfd; diff --git a/drivers/mfd/max8925-core.c b/drivers/mfd/max8925-core.c index 825a7f06d9ba..ee53757beca7 100644 --- a/drivers/mfd/max8925-core.c +++ b/drivers/mfd/max8925-core.c @@ -598,7 +598,7 @@ int __devinit max8925_device_init(struct max8925_chip *chip, ret = mfd_add_devices(chip->dev, 0, &rtc_devs[0], ARRAY_SIZE(rtc_devs), - &rtc_resources[0], chip->irq_base); + &rtc_resources[0], chip->irq_base, NULL); if (ret < 0) { dev_err(chip->dev, "Failed to add rtc subdev\n"); goto out; @@ -606,7 +606,7 @@ int __devinit max8925_device_init(struct max8925_chip *chip, ret = mfd_add_devices(chip->dev, 0, &onkey_devs[0], ARRAY_SIZE(onkey_devs), - &onkey_resources[0], 0); + &onkey_resources[0], 0, NULL); if (ret < 0) { dev_err(chip->dev, "Failed to add onkey subdev\n"); goto out_dev; @@ -615,7 +615,7 @@ int __devinit max8925_device_init(struct max8925_chip *chip, if (pdata) { ret = mfd_add_devices(chip->dev, 0, ®ulator_devs[0], ARRAY_SIZE(regulator_devs), - ®ulator_resources[0], 0); + ®ulator_resources[0], 0, NULL); if (ret < 0) { dev_err(chip->dev, "Failed to add regulator subdev\n"); goto out_dev; @@ -625,7 +625,7 @@ int __devinit max8925_device_init(struct max8925_chip *chip, if (pdata && pdata->backlight) { ret = mfd_add_devices(chip->dev, 0, &backlight_devs[0], ARRAY_SIZE(backlight_devs), - &backlight_resources[0], 0); + &backlight_resources[0], 0, NULL); if (ret < 0) { dev_err(chip->dev, "Failed to add backlight subdev\n"); goto out_dev; @@ -635,7 +635,7 @@ int __devinit max8925_device_init(struct max8925_chip *chip, if (pdata && pdata->power) { ret = mfd_add_devices(chip->dev, 0, &power_devs[0], ARRAY_SIZE(power_devs), - &power_supply_resources[0], 0); + &power_supply_resources[0], 0, NULL); if (ret < 0) { dev_err(chip->dev, "Failed to add power supply " "subdev\n"); @@ -646,7 +646,7 @@ int __devinit max8925_device_init(struct max8925_chip *chip, if (pdata && pdata->touch) { ret = mfd_add_devices(chip->dev, 0, &touch_devs[0], ARRAY_SIZE(touch_devs), - &touch_resources[0], 0); + &touch_resources[0], 0, NULL); if (ret < 0) { dev_err(chip->dev, "Failed to add touch subdev\n"); goto out_dev; diff --git a/drivers/mfd/max8997.c b/drivers/mfd/max8997.c index 10b629c245b6..f123517065ec 100644 --- a/drivers/mfd/max8997.c +++ b/drivers/mfd/max8997.c @@ -160,7 +160,7 @@ static int max8997_i2c_probe(struct i2c_client *i2c, mfd_add_devices(max8997->dev, -1, max8997_devs, ARRAY_SIZE(max8997_devs), - NULL, 0); + NULL, 0, NULL); /* * TODO: enable others (flash, muic, rtc, battery, ...) and diff --git a/drivers/mfd/max8998.c b/drivers/mfd/max8998.c index 6ef56d28c056..d7218cc90945 100644 --- a/drivers/mfd/max8998.c +++ b/drivers/mfd/max8998.c @@ -161,13 +161,13 @@ static int max8998_i2c_probe(struct i2c_client *i2c, switch (id->driver_data) { case TYPE_LP3974: ret = mfd_add_devices(max8998->dev, -1, - lp3974_devs, ARRAY_SIZE(lp3974_devs), - NULL, 0); + lp3974_devs, ARRAY_SIZE(lp3974_devs), + NULL, 0, NULL); break; case TYPE_MAX8998: ret = mfd_add_devices(max8998->dev, -1, - max8998_devs, ARRAY_SIZE(max8998_devs), - NULL, 0); + max8998_devs, ARRAY_SIZE(max8998_devs), + NULL, 0, NULL); break; default: ret = -EINVAL; diff --git a/drivers/mfd/mc13xxx-core.c b/drivers/mfd/mc13xxx-core.c index b801dc72f041..1ec79b54bd2f 100644 --- a/drivers/mfd/mc13xxx-core.c +++ b/drivers/mfd/mc13xxx-core.c @@ -612,7 +612,7 @@ static int mc13xxx_add_subdevice_pdata(struct mc13xxx *mc13xxx, if (!cell.name) return -ENOMEM; - return mfd_add_devices(mc13xxx->dev, -1, &cell, 1, NULL, 0); + return mfd_add_devices(mc13xxx->dev, -1, &cell, 1, NULL, 0, NULL); } static int mc13xxx_add_subdevice(struct mc13xxx *mc13xxx, const char *format) diff --git a/drivers/mfd/mfd-core.c b/drivers/mfd/mfd-core.c index 0c3a01cde2f7..f8b77711ad2d 100644 --- a/drivers/mfd/mfd-core.c +++ b/drivers/mfd/mfd-core.c @@ -74,12 +74,11 @@ static int mfd_platform_add_cell(struct platform_device *pdev, static int mfd_add_device(struct device *parent, int id, const struct mfd_cell *cell, struct resource *mem_base, - int irq_base) + int irq_base, struct irq_domain *domain) { struct resource *res; struct platform_device *pdev; struct device_node *np = NULL; - struct irq_domain *domain = NULL; int ret = -ENOMEM; int r; @@ -97,7 +96,6 @@ static int mfd_add_device(struct device *parent, int id, for_each_child_of_node(parent->of_node, np) { if (of_device_is_compatible(np, cell->of_compatible)) { pdev->dev.of_node = np; - domain = irq_find_host(parent->of_node); break; } } @@ -177,7 +175,7 @@ fail_alloc: int mfd_add_devices(struct device *parent, int id, struct mfd_cell *cells, int n_devs, struct resource *mem_base, - int irq_base) + int irq_base, struct irq_domain *domain) { int i; int ret = 0; @@ -191,7 +189,8 @@ int mfd_add_devices(struct device *parent, int id, for (i = 0; i < n_devs; i++) { atomic_set(&cnts[i], 0); cells[i].usage_count = &cnts[i]; - ret = mfd_add_device(parent, id, cells + i, mem_base, irq_base); + ret = mfd_add_device(parent, id, cells + i, mem_base, + irq_base, domain); if (ret) break; } @@ -247,7 +246,8 @@ int mfd_clone_cell(const char *cell, const char **clones, size_t n_clones) for (i = 0; i < n_clones; i++) { cell_entry.name = clones[i]; /* don't give up if a single call fails; just report error */ - if (mfd_add_device(pdev->dev.parent, -1, &cell_entry, NULL, 0)) + if (mfd_add_device(pdev->dev.parent, -1, &cell_entry, NULL, 0, + NULL)) dev_err(dev, "failed to create platform device '%s'\n", clones[i]); } diff --git a/drivers/mfd/palmas.c b/drivers/mfd/palmas.c index c4a69f193a1d..a345f9bb7b47 100644 --- a/drivers/mfd/palmas.c +++ b/drivers/mfd/palmas.c @@ -453,7 +453,8 @@ static int __devinit palmas_i2c_probe(struct i2c_client *i2c, ret = mfd_add_devices(palmas->dev, -1, children, ARRAY_SIZE(palmas_children), - NULL, regmap_irq_chip_get_base(palmas->irq_data)); + NULL, regmap_irq_chip_get_base(palmas->irq_data), + NULL); kfree(children); if (ret < 0) diff --git a/drivers/mfd/rc5t583.c b/drivers/mfd/rc5t583.c index cdc1df7fa0e9..3a8fa88567b1 100644 --- a/drivers/mfd/rc5t583.c +++ b/drivers/mfd/rc5t583.c @@ -289,7 +289,7 @@ static int __devinit rc5t583_i2c_probe(struct i2c_client *i2c, } ret = mfd_add_devices(rc5t583->dev, -1, rc5t583_subdevs, - ARRAY_SIZE(rc5t583_subdevs), NULL, 0); + ARRAY_SIZE(rc5t583_subdevs), NULL, 0, NULL); if (ret) { dev_err(&i2c->dev, "add mfd devices failed: %d\n", ret); goto err_add_devs; diff --git a/drivers/mfd/rdc321x-southbridge.c b/drivers/mfd/rdc321x-southbridge.c index 685d61e431ad..0f70dce61160 100644 --- a/drivers/mfd/rdc321x-southbridge.c +++ b/drivers/mfd/rdc321x-southbridge.c @@ -87,7 +87,8 @@ static int __devinit rdc321x_sb_probe(struct pci_dev *pdev, rdc321x_wdt_pdata.sb_pdev = pdev; return mfd_add_devices(&pdev->dev, -1, - rdc321x_sb_cells, ARRAY_SIZE(rdc321x_sb_cells), NULL, 0); + rdc321x_sb_cells, ARRAY_SIZE(rdc321x_sb_cells), + NULL, 0, NULL); } static void __devexit rdc321x_sb_remove(struct pci_dev *pdev) diff --git a/drivers/mfd/sec-core.c b/drivers/mfd/sec-core.c index 2988efde11eb..49d361a618d0 100644 --- a/drivers/mfd/sec-core.c +++ b/drivers/mfd/sec-core.c @@ -141,19 +141,19 @@ static int sec_pmic_probe(struct i2c_client *i2c, switch (sec_pmic->device_type) { case S5M8751X: ret = mfd_add_devices(sec_pmic->dev, -1, s5m8751_devs, - ARRAY_SIZE(s5m8751_devs), NULL, 0); + ARRAY_SIZE(s5m8751_devs), NULL, 0, NULL); break; case S5M8763X: ret = mfd_add_devices(sec_pmic->dev, -1, s5m8763_devs, - ARRAY_SIZE(s5m8763_devs), NULL, 0); + ARRAY_SIZE(s5m8763_devs), NULL, 0, NULL); break; case S5M8767X: ret = mfd_add_devices(sec_pmic->dev, -1, s5m8767_devs, - ARRAY_SIZE(s5m8767_devs), NULL, 0); + ARRAY_SIZE(s5m8767_devs), NULL, 0, NULL); break; case S2MPS11X: ret = mfd_add_devices(sec_pmic->dev, -1, s2mps11_devs, - ARRAY_SIZE(s2mps11_devs), NULL, 0); + ARRAY_SIZE(s2mps11_devs), NULL, 0, NULL); break; default: /* If this happens the probe function is problem */ diff --git a/drivers/mfd/sta2x11-mfd.c b/drivers/mfd/sta2x11-mfd.c index d31fed07aefb..d35da6820bea 100644 --- a/drivers/mfd/sta2x11-mfd.c +++ b/drivers/mfd/sta2x11-mfd.c @@ -407,7 +407,7 @@ static int __devinit sta2x11_mfd_probe(struct pci_dev *pdev, sta2x11_mfd_bar0, ARRAY_SIZE(sta2x11_mfd_bar0), &pdev->resource[0], - 0); + 0, NULL); if (err) { dev_err(&pdev->dev, "mfd_add_devices[0] failed: %d\n", err); goto err_disable; @@ -417,7 +417,7 @@ static int __devinit sta2x11_mfd_probe(struct pci_dev *pdev, sta2x11_mfd_bar1, ARRAY_SIZE(sta2x11_mfd_bar1), &pdev->resource[1], - 0); + 0, NULL); if (err) { dev_err(&pdev->dev, "mfd_add_devices[1] failed: %d\n", err); goto err_disable; diff --git a/drivers/mfd/stmpe.c b/drivers/mfd/stmpe.c index 2dd8d49cb30b..c94f521f392c 100644 --- a/drivers/mfd/stmpe.c +++ b/drivers/mfd/stmpe.c @@ -962,7 +962,7 @@ static int __devinit stmpe_add_device(struct stmpe *stmpe, struct mfd_cell *cell, int irq) { return mfd_add_devices(stmpe->dev, stmpe->pdata->id, cell, 1, - NULL, stmpe->irq_base + irq); + NULL, stmpe->irq_base + irq, NULL); } static int __devinit stmpe_devices_init(struct stmpe *stmpe) diff --git a/drivers/mfd/t7l66xb.c b/drivers/mfd/t7l66xb.c index 2d9e8799e733..b32940ec9034 100644 --- a/drivers/mfd/t7l66xb.c +++ b/drivers/mfd/t7l66xb.c @@ -388,7 +388,7 @@ static int t7l66xb_probe(struct platform_device *dev) ret = mfd_add_devices(&dev->dev, dev->id, t7l66xb_cells, ARRAY_SIZE(t7l66xb_cells), - iomem, t7l66xb->irq_base); + iomem, t7l66xb->irq_base, NULL); if (!ret) return 0; diff --git a/drivers/mfd/tc3589x.c b/drivers/mfd/tc3589x.c index 048bf0532a09..b56ba6b43294 100644 --- a/drivers/mfd/tc3589x.c +++ b/drivers/mfd/tc3589x.c @@ -262,8 +262,8 @@ static int __devinit tc3589x_device_init(struct tc3589x *tc3589x) if (blocks & TC3589x_BLOCK_GPIO) { ret = mfd_add_devices(tc3589x->dev, -1, tc3589x_dev_gpio, - ARRAY_SIZE(tc3589x_dev_gpio), NULL, - tc3589x->irq_base); + ARRAY_SIZE(tc3589x_dev_gpio), NULL, + tc3589x->irq_base, NULL); if (ret) { dev_err(tc3589x->dev, "failed to add gpio child\n"); return ret; @@ -273,8 +273,8 @@ static int __devinit tc3589x_device_init(struct tc3589x *tc3589x) if (blocks & TC3589x_BLOCK_KEYPAD) { ret = mfd_add_devices(tc3589x->dev, -1, tc3589x_dev_keypad, - ARRAY_SIZE(tc3589x_dev_keypad), NULL, - tc3589x->irq_base); + ARRAY_SIZE(tc3589x_dev_keypad), NULL, + tc3589x->irq_base, NULL); if (ret) { dev_err(tc3589x->dev, "failed to keypad child\n"); return ret; diff --git a/drivers/mfd/tc6387xb.c b/drivers/mfd/tc6387xb.c index d20a284ad4ba..413c891102f8 100644 --- a/drivers/mfd/tc6387xb.c +++ b/drivers/mfd/tc6387xb.c @@ -192,7 +192,7 @@ static int __devinit tc6387xb_probe(struct platform_device *dev) printk(KERN_INFO "Toshiba tc6387xb initialised\n"); ret = mfd_add_devices(&dev->dev, dev->id, tc6387xb_cells, - ARRAY_SIZE(tc6387xb_cells), iomem, irq); + ARRAY_SIZE(tc6387xb_cells), iomem, irq, NULL); if (!ret) return 0; diff --git a/drivers/mfd/tc6393xb.c b/drivers/mfd/tc6393xb.c index 9612264f0e6d..dcab026fcbb2 100644 --- a/drivers/mfd/tc6393xb.c +++ b/drivers/mfd/tc6393xb.c @@ -700,8 +700,8 @@ static int __devinit tc6393xb_probe(struct platform_device *dev) tc6393xb_cells[TC6393XB_CELL_FB].pdata_size = sizeof(*tcpd->fb_data); ret = mfd_add_devices(&dev->dev, dev->id, - tc6393xb_cells, ARRAY_SIZE(tc6393xb_cells), - iomem, tcpd->irq_base); + tc6393xb_cells, ARRAY_SIZE(tc6393xb_cells), + iomem, tcpd->irq_base, NULL); if (!ret) return 0; diff --git a/drivers/mfd/ti-ssp.c b/drivers/mfd/ti-ssp.c index 4fb0e6c8e8fe..7c3675a74f93 100644 --- a/drivers/mfd/ti-ssp.c +++ b/drivers/mfd/ti-ssp.c @@ -412,7 +412,7 @@ static int __devinit ti_ssp_probe(struct platform_device *pdev) cells[id].data_size = data->pdata_size; } - error = mfd_add_devices(dev, 0, cells, 2, NULL, 0); + error = mfd_add_devices(dev, 0, cells, 2, NULL, 0, NULL); if (error < 0) { dev_err(dev, "cannot add mfd cells\n"); goto error_enable; diff --git a/drivers/mfd/timberdale.c b/drivers/mfd/timberdale.c index a447f4ec11fb..cccc626c83c8 100644 --- a/drivers/mfd/timberdale.c +++ b/drivers/mfd/timberdale.c @@ -757,25 +757,25 @@ static int __devinit timb_probe(struct pci_dev *dev, err = mfd_add_devices(&dev->dev, -1, timberdale_cells_bar0_cfg0, ARRAY_SIZE(timberdale_cells_bar0_cfg0), - &dev->resource[0], msix_entries[0].vector); + &dev->resource[0], msix_entries[0].vector, NULL); break; case TIMB_HW_VER1: err = mfd_add_devices(&dev->dev, -1, timberdale_cells_bar0_cfg1, ARRAY_SIZE(timberdale_cells_bar0_cfg1), - &dev->resource[0], msix_entries[0].vector); + &dev->resource[0], msix_entries[0].vector, NULL); break; case TIMB_HW_VER2: err = mfd_add_devices(&dev->dev, -1, timberdale_cells_bar0_cfg2, ARRAY_SIZE(timberdale_cells_bar0_cfg2), - &dev->resource[0], msix_entries[0].vector); + &dev->resource[0], msix_entries[0].vector, NULL); break; case TIMB_HW_VER3: err = mfd_add_devices(&dev->dev, -1, timberdale_cells_bar0_cfg3, ARRAY_SIZE(timberdale_cells_bar0_cfg3), - &dev->resource[0], msix_entries[0].vector); + &dev->resource[0], msix_entries[0].vector, NULL); break; default: dev_err(&dev->dev, "Uknown IP setup: %d.%d.%d\n", @@ -792,7 +792,7 @@ static int __devinit timb_probe(struct pci_dev *dev, err = mfd_add_devices(&dev->dev, 0, timberdale_cells_bar1, ARRAY_SIZE(timberdale_cells_bar1), - &dev->resource[1], msix_entries[0].vector); + &dev->resource[1], msix_entries[0].vector, NULL); if (err) { dev_err(&dev->dev, "mfd_add_devices failed: %d\n", err); goto err_mfd2; @@ -803,7 +803,7 @@ static int __devinit timb_probe(struct pci_dev *dev, ((priv->fw.config & TIMB_HW_VER_MASK) == TIMB_HW_VER3)) { err = mfd_add_devices(&dev->dev, 1, timberdale_cells_bar2, ARRAY_SIZE(timberdale_cells_bar2), - &dev->resource[2], msix_entries[0].vector); + &dev->resource[2], msix_entries[0].vector, NULL); if (err) { dev_err(&dev->dev, "mfd_add_devices failed: %d\n", err); goto err_mfd2; diff --git a/drivers/mfd/tps6105x.c b/drivers/mfd/tps6105x.c index a293b978e27c..14051bdc714b 100644 --- a/drivers/mfd/tps6105x.c +++ b/drivers/mfd/tps6105x.c @@ -188,7 +188,7 @@ static int __devinit tps6105x_probe(struct i2c_client *client, } ret = mfd_add_devices(&client->dev, 0, tps6105x_cells, - ARRAY_SIZE(tps6105x_cells), NULL, 0); + ARRAY_SIZE(tps6105x_cells), NULL, 0, NULL); if (ret) goto fail; diff --git a/drivers/mfd/tps6507x.c b/drivers/mfd/tps6507x.c index 33ba7723c967..1b203499c744 100644 --- a/drivers/mfd/tps6507x.c +++ b/drivers/mfd/tps6507x.c @@ -100,7 +100,7 @@ static int tps6507x_i2c_probe(struct i2c_client *i2c, ret = mfd_add_devices(tps6507x->dev, -1, tps6507x_devs, ARRAY_SIZE(tps6507x_devs), - NULL, 0); + NULL, 0, NULL); if (ret < 0) goto err; diff --git a/drivers/mfd/tps65090.c b/drivers/mfd/tps65090.c index 80e24f4b47bf..50fd87c87a1c 100644 --- a/drivers/mfd/tps65090.c +++ b/drivers/mfd/tps65090.c @@ -292,7 +292,7 @@ static int __devinit tps65090_i2c_probe(struct i2c_client *client, } ret = mfd_add_devices(tps65090->dev, -1, tps65090s, - ARRAY_SIZE(tps65090s), NULL, 0); + ARRAY_SIZE(tps65090s), NULL, 0, NULL); if (ret) { dev_err(&client->dev, "add mfd devices failed with err: %d\n", ret); diff --git a/drivers/mfd/tps65217.c b/drivers/mfd/tps65217.c index 3bc274409b58..a95e9421b735 100644 --- a/drivers/mfd/tps65217.c +++ b/drivers/mfd/tps65217.c @@ -191,7 +191,7 @@ static int __devinit tps65217_probe(struct i2c_client *client, } ret = mfd_add_devices(tps->dev, -1, tps65217s, - ARRAY_SIZE(tps65217s), NULL, 0); + ARRAY_SIZE(tps65217s), NULL, 0, NULL); if (ret < 0) { dev_err(tps->dev, "mfd_add_devices failed: %d\n", ret); return ret; diff --git a/drivers/mfd/tps6586x.c b/drivers/mfd/tps6586x.c index 353c34812120..5f58370ccf55 100644 --- a/drivers/mfd/tps6586x.c +++ b/drivers/mfd/tps6586x.c @@ -493,7 +493,8 @@ static int __devinit tps6586x_i2c_probe(struct i2c_client *client, } ret = mfd_add_devices(tps6586x->dev, -1, - tps6586x_cell, ARRAY_SIZE(tps6586x_cell), NULL, 0); + tps6586x_cell, ARRAY_SIZE(tps6586x_cell), + NULL, 0, NULL); if (ret < 0) { dev_err(&client->dev, "mfd_add_devices failed: %d\n", ret); goto err_mfd_add; diff --git a/drivers/mfd/tps65910.c b/drivers/mfd/tps65910.c index 1c563792c777..d3ce4d569deb 100644 --- a/drivers/mfd/tps65910.c +++ b/drivers/mfd/tps65910.c @@ -254,7 +254,7 @@ static __devinit int tps65910_i2c_probe(struct i2c_client *i2c, ret = mfd_add_devices(tps65910->dev, -1, tps65910s, ARRAY_SIZE(tps65910s), - NULL, 0); + NULL, 0, NULL); if (ret < 0) { dev_err(&i2c->dev, "mfd_add_devices failed: %d\n", ret); return ret; diff --git a/drivers/mfd/tps65912-core.c b/drivers/mfd/tps65912-core.c index 74fd8cb5f372..4658b5bdcd84 100644 --- a/drivers/mfd/tps65912-core.c +++ b/drivers/mfd/tps65912-core.c @@ -146,7 +146,7 @@ int tps65912_device_init(struct tps65912 *tps65912) ret = mfd_add_devices(tps65912->dev, -1, tps65912s, ARRAY_SIZE(tps65912s), - NULL, 0); + NULL, 0, NULL); if (ret < 0) goto err; diff --git a/drivers/mfd/twl4030-audio.c b/drivers/mfd/twl4030-audio.c index 838ce4eb444e..77c9acb14583 100644 --- a/drivers/mfd/twl4030-audio.c +++ b/drivers/mfd/twl4030-audio.c @@ -223,7 +223,7 @@ static int __devinit twl4030_audio_probe(struct platform_device *pdev) if (childs) ret = mfd_add_devices(&pdev->dev, pdev->id, audio->cells, - childs, NULL, 0); + childs, NULL, 0, NULL); else { dev_err(&pdev->dev, "No platform data found for childs\n"); ret = -ENODEV; diff --git a/drivers/mfd/twl6040-core.c b/drivers/mfd/twl6040-core.c index b0fad0ffca56..3dca5c195a20 100644 --- a/drivers/mfd/twl6040-core.c +++ b/drivers/mfd/twl6040-core.c @@ -632,7 +632,7 @@ static int __devinit twl6040_probe(struct i2c_client *client, } ret = mfd_add_devices(&client->dev, -1, twl6040->cells, children, - NULL, 0); + NULL, 0, NULL); if (ret) goto mfd_err; diff --git a/drivers/mfd/vx855.c b/drivers/mfd/vx855.c index 872aff21e4be..b9a636d44c7f 100644 --- a/drivers/mfd/vx855.c +++ b/drivers/mfd/vx855.c @@ -102,7 +102,7 @@ static __devinit int vx855_probe(struct pci_dev *pdev, vx855_gpio_resources[1].end = vx855_gpio_resources[1].start + 3; ret = mfd_add_devices(&pdev->dev, -1, vx855_cells, ARRAY_SIZE(vx855_cells), - NULL, 0); + NULL, 0, NULL); /* we always return -ENODEV here in order to enable other * drivers like old, not-yet-platform_device ported i2c-viapro */ diff --git a/drivers/mfd/wl1273-core.c b/drivers/mfd/wl1273-core.c index f39b756df561..86e0e4309fc2 100644 --- a/drivers/mfd/wl1273-core.c +++ b/drivers/mfd/wl1273-core.c @@ -241,7 +241,7 @@ static int __devinit wl1273_core_probe(struct i2c_client *client, __func__, children); r = mfd_add_devices(&client->dev, -1, core->cells, - children, NULL, 0); + children, NULL, 0, NULL); if (r) goto err; diff --git a/drivers/mfd/wm831x-core.c b/drivers/mfd/wm831x-core.c index 946698fd2dc6..301731035940 100644 --- a/drivers/mfd/wm831x-core.c +++ b/drivers/mfd/wm831x-core.c @@ -1813,27 +1813,27 @@ int wm831x_device_init(struct wm831x *wm831x, unsigned long id, int irq) case WM8310: ret = mfd_add_devices(wm831x->dev, wm831x_num, wm8310_devs, ARRAY_SIZE(wm8310_devs), - NULL, 0); + NULL, 0, NULL); break; case WM8311: ret = mfd_add_devices(wm831x->dev, wm831x_num, wm8311_devs, ARRAY_SIZE(wm8311_devs), - NULL, 0); + NULL, 0, NULL); if (!pdata || !pdata->disable_touch) mfd_add_devices(wm831x->dev, wm831x_num, touch_devs, ARRAY_SIZE(touch_devs), - NULL, 0); + NULL, 0, NULL); break; case WM8312: ret = mfd_add_devices(wm831x->dev, wm831x_num, wm8312_devs, ARRAY_SIZE(wm8312_devs), - NULL, 0); + NULL, 0, NULL); if (!pdata || !pdata->disable_touch) mfd_add_devices(wm831x->dev, wm831x_num, touch_devs, ARRAY_SIZE(touch_devs), - NULL, 0); + NULL, 0, NULL); break; case WM8320: @@ -1842,7 +1842,7 @@ int wm831x_device_init(struct wm831x *wm831x, unsigned long id, int irq) case WM8326: ret = mfd_add_devices(wm831x->dev, wm831x_num, wm8320_devs, ARRAY_SIZE(wm8320_devs), - NULL, 0); + NULL, 0, NULL); break; default: @@ -1867,7 +1867,7 @@ int wm831x_device_init(struct wm831x *wm831x, unsigned long id, int irq) if (ret & WM831X_XTAL_ENA) { ret = mfd_add_devices(wm831x->dev, wm831x_num, rtc_devs, ARRAY_SIZE(rtc_devs), - NULL, 0); + NULL, 0, NULL); if (ret != 0) { dev_err(wm831x->dev, "Failed to add RTC: %d\n", ret); goto err_irq; @@ -1880,7 +1880,7 @@ int wm831x_device_init(struct wm831x *wm831x, unsigned long id, int irq) /* Treat errors as non-critical */ ret = mfd_add_devices(wm831x->dev, wm831x_num, backlight_devs, ARRAY_SIZE(backlight_devs), NULL, - 0); + 0, NULL); if (ret < 0) dev_err(wm831x->dev, "Failed to add backlight: %d\n", ret); diff --git a/drivers/mfd/wm8400-core.c b/drivers/mfd/wm8400-core.c index 4b7d378551d5..639ca359242f 100644 --- a/drivers/mfd/wm8400-core.c +++ b/drivers/mfd/wm8400-core.c @@ -70,7 +70,7 @@ static int wm8400_register_codec(struct wm8400 *wm8400) .pdata_size = sizeof(*wm8400), }; - return mfd_add_devices(wm8400->dev, -1, &cell, 1, NULL, 0); + return mfd_add_devices(wm8400->dev, -1, &cell, 1, NULL, 0, NULL); } /* diff --git a/drivers/mfd/wm8994-core.c b/drivers/mfd/wm8994-core.c index eec74aa55fdf..2febf88cfce8 100644 --- a/drivers/mfd/wm8994-core.c +++ b/drivers/mfd/wm8994-core.c @@ -414,7 +414,7 @@ static __devinit int wm8994_device_init(struct wm8994 *wm8994, int irq) ret = mfd_add_devices(wm8994->dev, -1, wm8994_regulator_devs, ARRAY_SIZE(wm8994_regulator_devs), - NULL, 0); + NULL, 0, NULL); if (ret != 0) { dev_err(wm8994->dev, "Failed to add children: %d\n", ret); goto err; @@ -648,7 +648,7 @@ static __devinit int wm8994_device_init(struct wm8994 *wm8994, int irq) ret = mfd_add_devices(wm8994->dev, -1, wm8994_devs, ARRAY_SIZE(wm8994_devs), - NULL, 0); + NULL, 0, NULL); if (ret != 0) { dev_err(wm8994->dev, "Failed to add children: %d\n", ret); goto err_irq; diff --git a/drivers/staging/nvec/nvec.c b/drivers/staging/nvec/nvec.c index 695ea35f75b0..d0a7e408efe9 100644 --- a/drivers/staging/nvec/nvec.c +++ b/drivers/staging/nvec/nvec.c @@ -837,7 +837,7 @@ static int __devinit tegra_nvec_probe(struct platform_device *pdev) } ret = mfd_add_devices(nvec->dev, -1, nvec_devices, - ARRAY_SIZE(nvec_devices), base, 0); + ARRAY_SIZE(nvec_devices), base, 0, NULL); if (ret) dev_err(nvec->dev, "error adding subdevices\n"); diff --git a/include/linux/mfd/core.h b/include/linux/mfd/core.h index 3a8435a8058f..cebe97ee98b8 100644 --- a/include/linux/mfd/core.h +++ b/include/linux/mfd/core.h @@ -16,6 +16,8 @@ #include +struct irq_domain; + /* * This struct describes the MFD part ("cell"). * After registration the copy of this structure will become the platform data @@ -98,7 +100,7 @@ static inline const struct mfd_cell *mfd_get_cell(struct platform_device *pdev) extern int mfd_add_devices(struct device *parent, int id, struct mfd_cell *cells, int n_devs, struct resource *mem_base, - int irq_base); + int irq_base, struct irq_domain *irq_domain); extern void mfd_remove_devices(struct device *parent); -- cgit v1.2.1 From d51f42d2c5b7e11b47876b8b5c53f0ac317fef24 Mon Sep 17 00:00:00 2001 From: Chanwoo Choi Date: Tue, 21 Aug 2012 15:15:52 +0900 Subject: mfd: MAX77693: Fix interrupt handling bug This patch fix bug related to interrupt handling for MAX77693 devices. - Unmask interrupt masking bit for charger/flash/muic to revolve that interrupt isn't happened when external connector is attached. - Fix wrong regmap instance when muic interrupt is happened. This patch were discussed and confirm discussion about this patch on below url: http://lkml.org/lkml/2012/7/16/118 Signed-off-by: Chanwoo Choi Signed-off-by: Myungjoo Ham Signed-off-by: Kyungmin Park Acked-by: Greg Kroah-Hartman Signed-off-by: Samuel Ortiz --- drivers/mfd/max77693-irq.c | 36 +++++++++++++++++++++++++++++++----- 1 file changed, 31 insertions(+), 5 deletions(-) diff --git a/drivers/mfd/max77693-irq.c b/drivers/mfd/max77693-irq.c index 2b403569e0a6..1029d018c739 100644 --- a/drivers/mfd/max77693-irq.c +++ b/drivers/mfd/max77693-irq.c @@ -137,6 +137,9 @@ static void max77693_irq_mask(struct irq_data *data) const struct max77693_irq_data *irq_data = irq_to_max77693_irq(max77693, data->irq); + if (irq_data->group >= MAX77693_IRQ_GROUP_NR) + return; + if (irq_data->group >= MUIC_INT1 && irq_data->group <= MUIC_INT3) max77693->irq_masks_cur[irq_data->group] &= ~irq_data->mask; else @@ -149,6 +152,9 @@ static void max77693_irq_unmask(struct irq_data *data) const struct max77693_irq_data *irq_data = irq_to_max77693_irq(max77693, data->irq); + if (irq_data->group >= MAX77693_IRQ_GROUP_NR) + return; + if (irq_data->group >= MUIC_INT1 && irq_data->group <= MUIC_INT3) max77693->irq_masks_cur[irq_data->group] |= irq_data->mask; else @@ -200,7 +206,7 @@ static irqreturn_t max77693_irq_thread(int irq, void *data) if (irq_src & MAX77693_IRQSRC_MUIC) /* MUIC INT1 ~ INT3 */ - max77693_bulk_read(max77693->regmap, MAX77693_MUIC_REG_INT1, + max77693_bulk_read(max77693->regmap_muic, MAX77693_MUIC_REG_INT1, MAX77693_NUM_IRQ_MUIC_REGS, &irq_reg[MUIC_INT1]); /* Apply masking */ @@ -255,7 +261,8 @@ int max77693_irq_init(struct max77693_dev *max77693) { struct irq_domain *domain; int i; - int ret; + int ret = 0; + u8 intsrc_mask; mutex_init(&max77693->irqlock); @@ -287,19 +294,38 @@ int max77693_irq_init(struct max77693_dev *max77693) &max77693_irq_domain_ops, max77693); if (!domain) { dev_err(max77693->dev, "could not create irq domain\n"); - return -ENODEV; + ret = -ENODEV; + goto err_irq; } max77693->irq_domain = domain; + /* Unmask max77693 interrupt */ + ret = max77693_read_reg(max77693->regmap, + MAX77693_PMIC_REG_INTSRC_MASK, &intsrc_mask); + if (ret < 0) { + dev_err(max77693->dev, "fail to read PMIC register\n"); + goto err_irq; + } + + intsrc_mask &= ~(MAX77693_IRQSRC_CHG); + intsrc_mask &= ~(MAX77693_IRQSRC_FLASH); + intsrc_mask &= ~(MAX77693_IRQSRC_MUIC); + ret = max77693_write_reg(max77693->regmap, + MAX77693_PMIC_REG_INTSRC_MASK, intsrc_mask); + if (ret < 0) { + dev_err(max77693->dev, "fail to write PMIC register\n"); + goto err_irq; + } + ret = request_threaded_irq(max77693->irq, NULL, max77693_irq_thread, IRQF_TRIGGER_FALLING | IRQF_ONESHOT, "max77693-irq", max77693); - if (ret) dev_err(max77693->dev, "Failed to request IRQ %d: %d\n", max77693->irq, ret); - return 0; +err_irq: + return ret; } void max77693_irq_exit(struct max77693_dev *max77693) -- cgit v1.2.1 From b186b12487efc80c44f2f0d26cc26eb249cf1524 Mon Sep 17 00:00:00 2001 From: Chanwoo Choi Date: Tue, 21 Aug 2012 15:16:23 +0900 Subject: mfd: MAX77693: Fix NULL pointer error when initializing irqs This patch initialize register map of MUIC device because mfd driver of Maxim MAX77693 use regmap-muic instance of MUIC device when irqs of Maxim MAX77693 is initialized before call max77693-muic probe() function. Signed-off-by: Chanwoo Choi Signed-off-by: Myungjoo Ham Signed-off-by: Kyungmin Park Reported-by: Sylwester Nawrocki Acked-by: Greg Kroah-Hartman Signed-off-by: Samuel Ortiz --- drivers/extcon/extcon-max77693.c | 19 ++++++++++++------- drivers/mfd/max77693.c | 14 ++++++++++++++ 2 files changed, 26 insertions(+), 7 deletions(-) diff --git a/drivers/extcon/extcon-max77693.c b/drivers/extcon/extcon-max77693.c index 920a609b2c35..38f9e52f358b 100644 --- a/drivers/extcon/extcon-max77693.c +++ b/drivers/extcon/extcon-max77693.c @@ -669,13 +669,18 @@ static int __devinit max77693_muic_probe(struct platform_device *pdev) } info->dev = &pdev->dev; info->max77693 = max77693; - info->max77693->regmap_muic = regmap_init_i2c(info->max77693->muic, - &max77693_muic_regmap_config); - if (IS_ERR(info->max77693->regmap_muic)) { - ret = PTR_ERR(info->max77693->regmap_muic); - dev_err(max77693->dev, - "failed to allocate register map: %d\n", ret); - goto err_regmap; + if (info->max77693->regmap_muic) + dev_dbg(&pdev->dev, "allocate register map\n"); + else { + info->max77693->regmap_muic = devm_regmap_init_i2c( + info->max77693->muic, + &max77693_muic_regmap_config); + if (IS_ERR(info->max77693->regmap_muic)) { + ret = PTR_ERR(info->max77693->regmap_muic); + dev_err(max77693->dev, + "failed to allocate register map: %d\n", ret); + goto err_regmap; + } } platform_set_drvdata(pdev, info); mutex_init(&info->mutex); diff --git a/drivers/mfd/max77693.c b/drivers/mfd/max77693.c index 4fdd03d28539..cc5155e20494 100644 --- a/drivers/mfd/max77693.c +++ b/drivers/mfd/max77693.c @@ -152,6 +152,20 @@ static int max77693_i2c_probe(struct i2c_client *i2c, max77693->haptic = i2c_new_dummy(i2c->adapter, I2C_ADDR_HAPTIC); i2c_set_clientdata(max77693->haptic, max77693); + /* + * Initialize register map for MUIC device because use regmap-muic + * instance of MUIC device when irq of max77693 is initialized + * before call max77693-muic probe() function. + */ + max77693->regmap_muic = devm_regmap_init_i2c(max77693->muic, + &max77693_regmap_config); + if (IS_ERR(max77693->regmap_muic)) { + ret = PTR_ERR(max77693->regmap_muic); + dev_err(max77693->dev, + "failed to allocate register map: %d\n", ret); + goto err_regmap; + } + ret = max77693_irq_init(max77693); if (ret < 0) goto err_irq; -- cgit v1.2.1 From 37407ea7f93864c2cfc03edf8f37872ec539ea2b Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sun, 16 Sep 2012 12:29:43 -0700 Subject: Revert "sched: Improve scalability via 'CPU buddies', which withstand random perturbations" This reverts commit 970e178985cadbca660feb02f4d2ee3a09f7fdda. Nikolay Ulyanitsky reported thatthe 3.6-rc5 kernel has a 15-20% performance drop on PostgreSQL 9.2 on his machine (running "pgbench"). Borislav Petkov was able to reproduce this, and bisected it to this commit 970e178985ca ("sched: Improve scalability via 'CPU buddies' ...") apparently because the new single-idle-buddy model simply doesn't find idle CPU's to reschedule on aggressively enough. Mike Galbraith suspects that it is likely due to the user-mode spinlocks in PostgreSQL not reacting well to preemption, but we don't really know the details - I'll just revert the commit for now. There are hopefully other approaches to improve scheduler scalability without it causing these kinds of downsides. Reported-by: Nikolay Ulyanitsky Bisected-by: Borislav Petkov Acked-by: Mike Galbraith Cc: Andrew Morton Cc: Thomas Gleixner Cc: Ingo Molnar Signed-off-by: Linus Torvalds --- include/linux/sched.h | 1 - kernel/sched/core.c | 39 +-------------------------------------- kernel/sched/fair.c | 28 +++++++++++++++++++++------- 3 files changed, 22 insertions(+), 46 deletions(-) diff --git a/include/linux/sched.h b/include/linux/sched.h index b8c86648a2f9..23bddac4bad8 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -954,7 +954,6 @@ struct sched_domain { unsigned int smt_gain; int flags; /* See SD_* */ int level; - int idle_buddy; /* cpu assigned to select_idle_sibling() */ /* Runtime fields. */ unsigned long last_balance; /* init to jiffies. units in jiffies */ diff --git a/kernel/sched/core.c b/kernel/sched/core.c index a4ea245f3d85..649c9f876cb1 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -6014,11 +6014,6 @@ static void destroy_sched_domains(struct sched_domain *sd, int cpu) * SD_SHARE_PKG_RESOURCE set (Last Level Cache Domain) for this * allows us to avoid some pointer chasing select_idle_sibling(). * - * Iterate domains and sched_groups downward, assigning CPUs to be - * select_idle_sibling() hw buddy. Cross-wiring hw makes bouncing - * due to random perturbation self canceling, ie sw buddies pull - * their counterpart to their CPU's hw counterpart. - * * Also keep a unique ID per domain (we use the first cpu number in * the cpumask of the domain), this allows us to quickly tell if * two cpus are in the same cache domain, see cpus_share_cache(). @@ -6032,40 +6027,8 @@ static void update_top_cache_domain(int cpu) int id = cpu; sd = highest_flag_domain(cpu, SD_SHARE_PKG_RESOURCES); - if (sd) { - struct sched_domain *tmp = sd; - struct sched_group *sg, *prev; - bool right; - - /* - * Traverse to first CPU in group, and count hops - * to cpu from there, switching direction on each - * hop, never ever pointing the last CPU rightward. - */ - do { - id = cpumask_first(sched_domain_span(tmp)); - prev = sg = tmp->groups; - right = 1; - - while (cpumask_first(sched_group_cpus(sg)) != id) - sg = sg->next; - - while (!cpumask_test_cpu(cpu, sched_group_cpus(sg))) { - prev = sg; - sg = sg->next; - right = !right; - } - - /* A CPU went down, never point back to domain start. */ - if (right && cpumask_first(sched_group_cpus(sg->next)) == id) - right = false; - - sg = right ? sg->next : prev; - tmp->idle_buddy = cpumask_first(sched_group_cpus(sg)); - } while ((tmp = tmp->child)); - + if (sd) id = cpumask_first(sched_domain_span(sd)); - } rcu_assign_pointer(per_cpu(sd_llc, cpu), sd); per_cpu(sd_llc_id, cpu) = id; diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 42d9df6a5ca4..96e2b18b6283 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -2637,6 +2637,8 @@ static int select_idle_sibling(struct task_struct *p, int target) int cpu = smp_processor_id(); int prev_cpu = task_cpu(p); struct sched_domain *sd; + struct sched_group *sg; + int i; /* * If the task is going to be woken-up on this cpu and if it is @@ -2653,17 +2655,29 @@ static int select_idle_sibling(struct task_struct *p, int target) return prev_cpu; /* - * Otherwise, check assigned siblings to find an elegible idle cpu. + * Otherwise, iterate the domains and find an elegible idle cpu. */ sd = rcu_dereference(per_cpu(sd_llc, target)); - for_each_lower_domain(sd) { - if (!cpumask_test_cpu(sd->idle_buddy, tsk_cpus_allowed(p))) - continue; - if (idle_cpu(sd->idle_buddy)) - return sd->idle_buddy; - } + sg = sd->groups; + do { + if (!cpumask_intersects(sched_group_cpus(sg), + tsk_cpus_allowed(p))) + goto next; + for_each_cpu(i, sched_group_cpus(sg)) { + if (!idle_cpu(i)) + goto next; + } + + target = cpumask_first_and(sched_group_cpus(sg), + tsk_cpus_allowed(p)); + goto done; +next: + sg = sg->next; + } while (sg != sd->groups); + } +done: return target; } -- cgit v1.2.1 From 5698bd757d55b1bb87edd1a9744ab09c142abfc2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sun, 16 Sep 2012 14:58:51 -0700 Subject: Linux 3.6-rc6 --- Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Makefile b/Makefile index 0f66f146d57e..ae6928cc59d3 100644 --- a/Makefile +++ b/Makefile @@ -1,7 +1,7 @@ VERSION = 3 PATCHLEVEL = 6 SUBLEVEL = 0 -EXTRAVERSION = -rc5 +EXTRAVERSION = -rc6 NAME = Saber-toothed Squirrel # *DOCUMENTATION* -- cgit v1.2.1 From e2187b940fa6f17c372f895ec7d7eec026341385 Mon Sep 17 00:00:00 2001 From: Laxman Dewangan Date: Thu, 16 Aug 2012 04:13:13 +0000 Subject: ARM: tegra: config: enable dmaengine based APB DMA driver Enable config for dmaengine based Tegra APB DMA driver and disable the legacy APB DMA driver (SYSTEM_DMA). [swarren: removed CONFIG_TEGRA_SYSTEM_DMA not set line, since the option is removed entirely in a later patch] Signed-off-by: Laxman Dewangan Signed-off-by: Stephen Warren --- arch/arm/configs/tegra_defconfig | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/configs/tegra_defconfig b/arch/arm/configs/tegra_defconfig index db2245353f0f..0d6bb738c6de 100644 --- a/arch/arm/configs/tegra_defconfig +++ b/arch/arm/configs/tegra_defconfig @@ -145,6 +145,8 @@ CONFIG_MMC_SDHCI_TEGRA=y CONFIG_RTC_CLASS=y CONFIG_RTC_DRV_EM3027=y CONFIG_RTC_DRV_TEGRA=y +CONFIG_DMADEVICES=y +CONFIG_TEGRA20_APB_DMA=y CONFIG_STAGING=y CONFIG_SENSORS_ISL29018=y CONFIG_SENSORS_ISL29028=y -- cgit v1.2.1 From b4c2696798daddee46e01f974251f4ca3d6588eb Mon Sep 17 00:00:00 2001 From: Laxman Dewangan Date: Thu, 16 Aug 2012 04:13:14 +0000 Subject: ARM: tegra: dma: remove legacy APB DMA driver Remove the legacy APB dma driver. The APB DMA support is moved to dmaengine based Tegra APB DMA driver. All clients are also moved to dmaengine based APB DMA driver. Signed-off-by: Laxman Dewangan Signed-off-by: Stephen Warren --- arch/arm/mach-tegra/Kconfig | 7 - arch/arm/mach-tegra/Makefile | 1 - arch/arm/mach-tegra/dma.c | 823 --------------------------------- arch/arm/mach-tegra/include/mach/dma.h | 97 ---- 4 files changed, 928 deletions(-) delete mode 100644 arch/arm/mach-tegra/dma.c diff --git a/arch/arm/mach-tegra/Kconfig b/arch/arm/mach-tegra/Kconfig index 9077aaa398d9..dddbc79c7bec 100644 --- a/arch/arm/mach-tegra/Kconfig +++ b/arch/arm/mach-tegra/Kconfig @@ -130,13 +130,6 @@ config TEGRA_DEBUG_UART_AUTO_SCRATCH endchoice -config TEGRA_SYSTEM_DMA - bool "Enable system DMA driver for NVIDIA Tegra SoCs" - default y - help - Adds system DMA functionality for NVIDIA Tegra SoCs, used by - several Tegra device drivers - config TEGRA_EMC_SCALING_ENABLE bool "Enable scaling the memory frequency" diff --git a/arch/arm/mach-tegra/Makefile b/arch/arm/mach-tegra/Makefile index c3d7303b9ac8..95c2ba9df389 100644 --- a/arch/arm/mach-tegra/Makefile +++ b/arch/arm/mach-tegra/Makefile @@ -18,7 +18,6 @@ obj-$(CONFIG_ARCH_TEGRA_3x_SOC) += tegra30_clocks.o obj-$(CONFIG_SMP) += platsmp.o headsmp.o obj-$(CONFIG_SMP) += reset.o obj-$(CONFIG_HOTPLUG_CPU) += hotplug.o -obj-$(CONFIG_TEGRA_SYSTEM_DMA) += dma.o obj-$(CONFIG_CPU_FREQ) += cpu-tegra.o obj-$(CONFIG_TEGRA_PCI) += pcie.o obj-$(CONFIG_USB_SUPPORT) += usb_phy.o diff --git a/arch/arm/mach-tegra/dma.c b/arch/arm/mach-tegra/dma.c deleted file mode 100644 index 29c5114d607c..000000000000 --- a/arch/arm/mach-tegra/dma.c +++ /dev/null @@ -1,823 +0,0 @@ -/* - * arch/arm/mach-tegra/dma.c - * - * System DMA driver for NVIDIA Tegra SoCs - * - * Copyright (c) 2008-2009, NVIDIA Corporation. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "apbio.h" - -#define APB_DMA_GEN 0x000 -#define GEN_ENABLE (1<<31) - -#define APB_DMA_CNTRL 0x010 - -#define APB_DMA_IRQ_MASK 0x01c - -#define APB_DMA_IRQ_MASK_SET 0x020 - -#define APB_DMA_CHAN_CSR 0x000 -#define CSR_ENB (1<<31) -#define CSR_IE_EOC (1<<30) -#define CSR_HOLD (1<<29) -#define CSR_DIR (1<<28) -#define CSR_ONCE (1<<27) -#define CSR_FLOW (1<<21) -#define CSR_REQ_SEL_SHIFT 16 -#define CSR_WCOUNT_SHIFT 2 -#define CSR_WCOUNT_MASK 0xFFFC - -#define APB_DMA_CHAN_STA 0x004 -#define STA_BUSY (1<<31) -#define STA_ISE_EOC (1<<30) -#define STA_HALT (1<<29) -#define STA_PING_PONG (1<<28) -#define STA_COUNT_SHIFT 2 -#define STA_COUNT_MASK 0xFFFC - -#define APB_DMA_CHAN_AHB_PTR 0x010 - -#define APB_DMA_CHAN_AHB_SEQ 0x014 -#define AHB_SEQ_INTR_ENB (1<<31) -#define AHB_SEQ_BUS_WIDTH_SHIFT 28 -#define AHB_SEQ_BUS_WIDTH_MASK (0x7<list.next, typeof(*req), node); - - tegra_dma_dequeue_req(ch, req); - return; -} - -static void tegra_dma_stop(struct tegra_dma_channel *ch) -{ - u32 csr; - u32 status; - - csr = readl(ch->addr + APB_DMA_CHAN_CSR); - csr &= ~CSR_IE_EOC; - writel(csr, ch->addr + APB_DMA_CHAN_CSR); - - csr &= ~CSR_ENB; - writel(csr, ch->addr + APB_DMA_CHAN_CSR); - - status = readl(ch->addr + APB_DMA_CHAN_STA); - if (status & STA_ISE_EOC) - writel(status, ch->addr + APB_DMA_CHAN_STA); -} - -static int tegra_dma_cancel(struct tegra_dma_channel *ch) -{ - unsigned long irq_flags; - - spin_lock_irqsave(&ch->lock, irq_flags); - while (!list_empty(&ch->list)) - list_del(ch->list.next); - - tegra_dma_stop(ch); - - spin_unlock_irqrestore(&ch->lock, irq_flags); - return 0; -} - -static unsigned int get_channel_status(struct tegra_dma_channel *ch, - struct tegra_dma_req *req, bool is_stop_dma) -{ - void __iomem *addr = IO_ADDRESS(TEGRA_APB_DMA_BASE); - unsigned int status; - - if (is_stop_dma) { - /* - * STOP the DMA and get the transfer count. - * Getting the transfer count is tricky. - * - Globally disable DMA on all channels - * - Read the channel's status register to know the number - * of pending bytes to be transfered. - * - Stop the dma channel - * - Globally re-enable DMA to resume other transfers - */ - spin_lock(&enable_lock); - writel(0, addr + APB_DMA_GEN); - udelay(20); - status = readl(ch->addr + APB_DMA_CHAN_STA); - tegra_dma_stop(ch); - writel(GEN_ENABLE, addr + APB_DMA_GEN); - spin_unlock(&enable_lock); - if (status & STA_ISE_EOC) { - pr_err("Got Dma Int here clearing"); - writel(status, ch->addr + APB_DMA_CHAN_STA); - } - req->status = TEGRA_DMA_REQ_ERROR_ABORTED; - } else { - status = readl(ch->addr + APB_DMA_CHAN_STA); - } - return status; -} - -/* should be called with the channel lock held */ -static unsigned int dma_active_count(struct tegra_dma_channel *ch, - struct tegra_dma_req *req, unsigned int status) -{ - unsigned int to_transfer; - unsigned int req_transfer_count; - unsigned int bytes_transferred; - - to_transfer = ((status & STA_COUNT_MASK) >> STA_COUNT_SHIFT) + 1; - req_transfer_count = ch->req_transfer_count + 1; - bytes_transferred = req_transfer_count; - if (status & STA_BUSY) - bytes_transferred -= to_transfer; - /* - * In continuous transfer mode, DMA only tracks the count of the - * half DMA buffer. So, if the DMA already finished half the DMA - * then add the half buffer to the completed count. - */ - if (ch->mode & TEGRA_DMA_MODE_CONTINOUS) { - if (req->buffer_status == TEGRA_DMA_REQ_BUF_STATUS_HALF_FULL) - bytes_transferred += req_transfer_count; - if (status & STA_ISE_EOC) - bytes_transferred += req_transfer_count; - } - bytes_transferred *= 4; - return bytes_transferred; -} - -int tegra_dma_dequeue_req(struct tegra_dma_channel *ch, - struct tegra_dma_req *_req) -{ - unsigned int status; - struct tegra_dma_req *req = NULL; - int found = 0; - unsigned long irq_flags; - int stop = 0; - - spin_lock_irqsave(&ch->lock, irq_flags); - - if (list_entry(ch->list.next, struct tegra_dma_req, node) == _req) - stop = 1; - - list_for_each_entry(req, &ch->list, node) { - if (req == _req) { - list_del(&req->node); - found = 1; - break; - } - } - if (!found) { - spin_unlock_irqrestore(&ch->lock, irq_flags); - return 0; - } - - if (!stop) - goto skip_stop_dma; - - status = get_channel_status(ch, req, true); - req->bytes_transferred = dma_active_count(ch, req, status); - - if (!list_empty(&ch->list)) { - /* if the list is not empty, queue the next request */ - struct tegra_dma_req *next_req; - next_req = list_entry(ch->list.next, - typeof(*next_req), node); - tegra_dma_update_hw(ch, next_req); - } - -skip_stop_dma: - req->status = -TEGRA_DMA_REQ_ERROR_ABORTED; - - spin_unlock_irqrestore(&ch->lock, irq_flags); - - /* Callback should be called without any lock */ - req->complete(req); - return 0; -} -EXPORT_SYMBOL(tegra_dma_dequeue_req); - -bool tegra_dma_is_empty(struct tegra_dma_channel *ch) -{ - unsigned long irq_flags; - bool is_empty; - - spin_lock_irqsave(&ch->lock, irq_flags); - if (list_empty(&ch->list)) - is_empty = true; - else - is_empty = false; - spin_unlock_irqrestore(&ch->lock, irq_flags); - return is_empty; -} -EXPORT_SYMBOL(tegra_dma_is_empty); - -bool tegra_dma_is_req_inflight(struct tegra_dma_channel *ch, - struct tegra_dma_req *_req) -{ - unsigned long irq_flags; - struct tegra_dma_req *req; - - spin_lock_irqsave(&ch->lock, irq_flags); - list_for_each_entry(req, &ch->list, node) { - if (req == _req) { - spin_unlock_irqrestore(&ch->lock, irq_flags); - return true; - } - } - spin_unlock_irqrestore(&ch->lock, irq_flags); - return false; -} -EXPORT_SYMBOL(tegra_dma_is_req_inflight); - -int tegra_dma_enqueue_req(struct tegra_dma_channel *ch, - struct tegra_dma_req *req) -{ - unsigned long irq_flags; - struct tegra_dma_req *_req; - int start_dma = 0; - - if (req->size > NV_DMA_MAX_TRASFER_SIZE || - req->source_addr & 0x3 || req->dest_addr & 0x3) { - pr_err("Invalid DMA request for channel %d\n", ch->id); - return -EINVAL; - } - - spin_lock_irqsave(&ch->lock, irq_flags); - - list_for_each_entry(_req, &ch->list, node) { - if (req == _req) { - spin_unlock_irqrestore(&ch->lock, irq_flags); - return -EEXIST; - } - } - - req->bytes_transferred = 0; - req->status = 0; - req->buffer_status = 0; - if (list_empty(&ch->list)) - start_dma = 1; - - list_add_tail(&req->node, &ch->list); - - if (start_dma) - tegra_dma_update_hw(ch, req); - - spin_unlock_irqrestore(&ch->lock, irq_flags); - - return 0; -} -EXPORT_SYMBOL(tegra_dma_enqueue_req); - -struct tegra_dma_channel *tegra_dma_allocate_channel(int mode) -{ - int channel; - struct tegra_dma_channel *ch = NULL; - - if (!tegra_dma_initialized) - return NULL; - - mutex_lock(&tegra_dma_lock); - - /* first channel is the shared channel */ - if (mode & TEGRA_DMA_SHARED) { - channel = TEGRA_SYSTEM_DMA_CH_MIN; - } else { - channel = find_first_zero_bit(channel_usage, - ARRAY_SIZE(dma_channels)); - if (channel >= ARRAY_SIZE(dma_channels)) - goto out; - } - __set_bit(channel, channel_usage); - ch = &dma_channels[channel]; - ch->mode = mode; - -out: - mutex_unlock(&tegra_dma_lock); - return ch; -} -EXPORT_SYMBOL(tegra_dma_allocate_channel); - -void tegra_dma_free_channel(struct tegra_dma_channel *ch) -{ - if (ch->mode & TEGRA_DMA_SHARED) - return; - tegra_dma_cancel(ch); - mutex_lock(&tegra_dma_lock); - __clear_bit(ch->id, channel_usage); - mutex_unlock(&tegra_dma_lock); -} -EXPORT_SYMBOL(tegra_dma_free_channel); - -static void tegra_dma_update_hw_partial(struct tegra_dma_channel *ch, - struct tegra_dma_req *req) -{ - u32 apb_ptr; - u32 ahb_ptr; - - if (req->to_memory) { - apb_ptr = req->source_addr; - ahb_ptr = req->dest_addr; - } else { - apb_ptr = req->dest_addr; - ahb_ptr = req->source_addr; - } - writel(apb_ptr, ch->addr + APB_DMA_CHAN_APB_PTR); - writel(ahb_ptr, ch->addr + APB_DMA_CHAN_AHB_PTR); - - req->status = TEGRA_DMA_REQ_INFLIGHT; - return; -} - -static void tegra_dma_update_hw(struct tegra_dma_channel *ch, - struct tegra_dma_req *req) -{ - int ahb_addr_wrap; - int apb_addr_wrap; - int ahb_bus_width; - int apb_bus_width; - int index; - - u32 ahb_seq; - u32 apb_seq; - u32 ahb_ptr; - u32 apb_ptr; - u32 csr; - - csr = CSR_IE_EOC | CSR_FLOW; - ahb_seq = AHB_SEQ_INTR_ENB | AHB_SEQ_BURST_1; - apb_seq = 0; - - csr |= req->req_sel << CSR_REQ_SEL_SHIFT; - - /* One shot mode is always single buffered, - * continuous mode is always double buffered - * */ - if (ch->mode & TEGRA_DMA_MODE_ONESHOT) { - csr |= CSR_ONCE; - ch->req_transfer_count = (req->size >> 2) - 1; - } else { - ahb_seq |= AHB_SEQ_DBL_BUF; - - /* In double buffered mode, we set the size to half the - * requested size and interrupt when half the buffer - * is full */ - ch->req_transfer_count = (req->size >> 3) - 1; - } - - csr |= ch->req_transfer_count << CSR_WCOUNT_SHIFT; - - if (req->to_memory) { - apb_ptr = req->source_addr; - ahb_ptr = req->dest_addr; - - apb_addr_wrap = req->source_wrap; - ahb_addr_wrap = req->dest_wrap; - apb_bus_width = req->source_bus_width; - ahb_bus_width = req->dest_bus_width; - - } else { - csr |= CSR_DIR; - apb_ptr = req->dest_addr; - ahb_ptr = req->source_addr; - - apb_addr_wrap = req->dest_wrap; - ahb_addr_wrap = req->source_wrap; - apb_bus_width = req->dest_bus_width; - ahb_bus_width = req->source_bus_width; - } - - apb_addr_wrap >>= 2; - ahb_addr_wrap >>= 2; - - /* set address wrap for APB size */ - index = 0; - do { - if (apb_addr_wrap_table[index] == apb_addr_wrap) - break; - index++; - } while (index < ARRAY_SIZE(apb_addr_wrap_table)); - BUG_ON(index == ARRAY_SIZE(apb_addr_wrap_table)); - apb_seq |= index << APB_SEQ_WRAP_SHIFT; - - /* set address wrap for AHB size */ - index = 0; - do { - if (ahb_addr_wrap_table[index] == ahb_addr_wrap) - break; - index++; - } while (index < ARRAY_SIZE(ahb_addr_wrap_table)); - BUG_ON(index == ARRAY_SIZE(ahb_addr_wrap_table)); - ahb_seq |= index << AHB_SEQ_WRAP_SHIFT; - - for (index = 0; index < ARRAY_SIZE(bus_width_table); index++) { - if (bus_width_table[index] == ahb_bus_width) - break; - } - BUG_ON(index == ARRAY_SIZE(bus_width_table)); - ahb_seq |= index << AHB_SEQ_BUS_WIDTH_SHIFT; - - for (index = 0; index < ARRAY_SIZE(bus_width_table); index++) { - if (bus_width_table[index] == apb_bus_width) - break; - } - BUG_ON(index == ARRAY_SIZE(bus_width_table)); - apb_seq |= index << APB_SEQ_BUS_WIDTH_SHIFT; - - writel(csr, ch->addr + APB_DMA_CHAN_CSR); - writel(apb_seq, ch->addr + APB_DMA_CHAN_APB_SEQ); - writel(apb_ptr, ch->addr + APB_DMA_CHAN_APB_PTR); - writel(ahb_seq, ch->addr + APB_DMA_CHAN_AHB_SEQ); - writel(ahb_ptr, ch->addr + APB_DMA_CHAN_AHB_PTR); - - csr |= CSR_ENB; - writel(csr, ch->addr + APB_DMA_CHAN_CSR); - - req->status = TEGRA_DMA_REQ_INFLIGHT; -} - -static void handle_oneshot_dma(struct tegra_dma_channel *ch) -{ - struct tegra_dma_req *req; - unsigned long irq_flags; - - spin_lock_irqsave(&ch->lock, irq_flags); - if (list_empty(&ch->list)) { - spin_unlock_irqrestore(&ch->lock, irq_flags); - return; - } - - req = list_entry(ch->list.next, typeof(*req), node); - if (req) { - int bytes_transferred; - - bytes_transferred = ch->req_transfer_count; - bytes_transferred += 1; - bytes_transferred <<= 2; - - list_del(&req->node); - req->bytes_transferred = bytes_transferred; - req->status = TEGRA_DMA_REQ_SUCCESS; - - spin_unlock_irqrestore(&ch->lock, irq_flags); - /* Callback should be called without any lock */ - pr_debug("%s: transferred %d bytes\n", __func__, - req->bytes_transferred); - req->complete(req); - spin_lock_irqsave(&ch->lock, irq_flags); - } - - if (!list_empty(&ch->list)) { - req = list_entry(ch->list.next, typeof(*req), node); - /* the complete function we just called may have enqueued - another req, in which case dma has already started */ - if (req->status != TEGRA_DMA_REQ_INFLIGHT) - tegra_dma_update_hw(ch, req); - } - spin_unlock_irqrestore(&ch->lock, irq_flags); -} - -static void handle_continuous_dma(struct tegra_dma_channel *ch) -{ - struct tegra_dma_req *req; - unsigned long irq_flags; - - spin_lock_irqsave(&ch->lock, irq_flags); - if (list_empty(&ch->list)) { - spin_unlock_irqrestore(&ch->lock, irq_flags); - return; - } - - req = list_entry(ch->list.next, typeof(*req), node); - if (req) { - if (req->buffer_status == TEGRA_DMA_REQ_BUF_STATUS_EMPTY) { - bool is_dma_ping_complete; - is_dma_ping_complete = (readl(ch->addr + APB_DMA_CHAN_STA) - & STA_PING_PONG) ? true : false; - if (req->to_memory) - is_dma_ping_complete = !is_dma_ping_complete; - /* Out of sync - Release current buffer */ - if (!is_dma_ping_complete) { - int bytes_transferred; - - bytes_transferred = ch->req_transfer_count; - bytes_transferred += 1; - bytes_transferred <<= 3; - req->buffer_status = TEGRA_DMA_REQ_BUF_STATUS_FULL; - req->bytes_transferred = bytes_transferred; - req->status = TEGRA_DMA_REQ_SUCCESS; - tegra_dma_stop(ch); - - if (!list_is_last(&req->node, &ch->list)) { - struct tegra_dma_req *next_req; - - next_req = list_entry(req->node.next, - typeof(*next_req), node); - tegra_dma_update_hw(ch, next_req); - } - - list_del(&req->node); - - /* DMA lock is NOT held when callbak is called */ - spin_unlock_irqrestore(&ch->lock, irq_flags); - req->complete(req); - return; - } - /* Load the next request into the hardware, if available - * */ - if (!list_is_last(&req->node, &ch->list)) { - struct tegra_dma_req *next_req; - - next_req = list_entry(req->node.next, - typeof(*next_req), node); - tegra_dma_update_hw_partial(ch, next_req); - } - req->buffer_status = TEGRA_DMA_REQ_BUF_STATUS_HALF_FULL; - req->status = TEGRA_DMA_REQ_SUCCESS; - /* DMA lock is NOT held when callback is called */ - spin_unlock_irqrestore(&ch->lock, irq_flags); - if (likely(req->threshold)) - req->threshold(req); - return; - - } else if (req->buffer_status == - TEGRA_DMA_REQ_BUF_STATUS_HALF_FULL) { - /* Callback when the buffer is completely full (i.e on - * the second interrupt */ - int bytes_transferred; - - bytes_transferred = ch->req_transfer_count; - bytes_transferred += 1; - bytes_transferred <<= 3; - - req->buffer_status = TEGRA_DMA_REQ_BUF_STATUS_FULL; - req->bytes_transferred = bytes_transferred; - req->status = TEGRA_DMA_REQ_SUCCESS; - list_del(&req->node); - - /* DMA lock is NOT held when callbak is called */ - spin_unlock_irqrestore(&ch->lock, irq_flags); - req->complete(req); - return; - - } else { - BUG(); - } - } - spin_unlock_irqrestore(&ch->lock, irq_flags); -} - -static irqreturn_t dma_isr(int irq, void *data) -{ - struct tegra_dma_channel *ch = data; - unsigned long status; - - status = readl(ch->addr + APB_DMA_CHAN_STA); - if (status & STA_ISE_EOC) - writel(status, ch->addr + APB_DMA_CHAN_STA); - else { - pr_warning("Got a spurious ISR for DMA channel %d\n", ch->id); - return IRQ_HANDLED; - } - return IRQ_WAKE_THREAD; -} - -static irqreturn_t dma_thread_fn(int irq, void *data) -{ - struct tegra_dma_channel *ch = data; - - if (ch->mode & TEGRA_DMA_MODE_ONESHOT) - handle_oneshot_dma(ch); - else - handle_continuous_dma(ch); - - - return IRQ_HANDLED; -} - -int __init tegra_dma_init(void) -{ - int ret = 0; - int i; - unsigned int irq; - void __iomem *addr; - struct clk *c; - - bitmap_fill(channel_usage, NV_DMA_MAX_CHANNELS); - - c = clk_get_sys("tegra-apbdma", NULL); - if (IS_ERR(c)) { - pr_err("Unable to get clock for APB DMA\n"); - ret = PTR_ERR(c); - goto fail; - } - ret = clk_prepare_enable(c); - if (ret != 0) { - pr_err("Unable to enable clock for APB DMA\n"); - goto fail; - } - - addr = IO_ADDRESS(TEGRA_APB_DMA_BASE); - writel(GEN_ENABLE, addr + APB_DMA_GEN); - writel(0, addr + APB_DMA_CNTRL); - writel(0xFFFFFFFFul >> (31 - TEGRA_SYSTEM_DMA_CH_MAX), - addr + APB_DMA_IRQ_MASK_SET); - - for (i = TEGRA_SYSTEM_DMA_CH_MIN; i <= TEGRA_SYSTEM_DMA_CH_MAX; i++) { - struct tegra_dma_channel *ch = &dma_channels[i]; - - ch->id = i; - snprintf(ch->name, TEGRA_DMA_NAME_SIZE, "dma_channel_%d", i); - - ch->addr = IO_ADDRESS(TEGRA_APB_DMA_CH0_BASE + - TEGRA_APB_DMA_CH0_SIZE * i); - - spin_lock_init(&ch->lock); - INIT_LIST_HEAD(&ch->list); - - irq = INT_APB_DMA_CH0 + i; - ret = request_threaded_irq(irq, dma_isr, dma_thread_fn, 0, - dma_channels[i].name, ch); - if (ret) { - pr_err("Failed to register IRQ %d for DMA %d\n", - irq, i); - goto fail; - } - ch->irq = irq; - - __clear_bit(i, channel_usage); - } - /* mark the shared channel allocated */ - __set_bit(TEGRA_SYSTEM_DMA_CH_MIN, channel_usage); - - tegra_dma_initialized = true; - - return 0; -fail: - writel(0, addr + APB_DMA_GEN); - for (i = TEGRA_SYSTEM_DMA_CH_MIN; i <= TEGRA_SYSTEM_DMA_CH_MAX; i++) { - struct tegra_dma_channel *ch = &dma_channels[i]; - if (ch->irq) - free_irq(ch->irq, ch); - } - return ret; -} -postcore_initcall(tegra_dma_init); - -#ifdef CONFIG_PM -static u32 apb_dma[5*TEGRA_SYSTEM_DMA_CH_NR + 3]; - -void tegra_dma_suspend(void) -{ - void __iomem *addr = IO_ADDRESS(TEGRA_APB_DMA_BASE); - u32 *ctx = apb_dma; - int i; - - *ctx++ = readl(addr + APB_DMA_GEN); - *ctx++ = readl(addr + APB_DMA_CNTRL); - *ctx++ = readl(addr + APB_DMA_IRQ_MASK); - - for (i = 0; i < TEGRA_SYSTEM_DMA_CH_NR; i++) { - addr = IO_ADDRESS(TEGRA_APB_DMA_CH0_BASE + - TEGRA_APB_DMA_CH0_SIZE * i); - - *ctx++ = readl(addr + APB_DMA_CHAN_CSR); - *ctx++ = readl(addr + APB_DMA_CHAN_AHB_PTR); - *ctx++ = readl(addr + APB_DMA_CHAN_AHB_SEQ); - *ctx++ = readl(addr + APB_DMA_CHAN_APB_PTR); - *ctx++ = readl(addr + APB_DMA_CHAN_APB_SEQ); - } -} - -void tegra_dma_resume(void) -{ - void __iomem *addr = IO_ADDRESS(TEGRA_APB_DMA_BASE); - u32 *ctx = apb_dma; - int i; - - writel(*ctx++, addr + APB_DMA_GEN); - writel(*ctx++, addr + APB_DMA_CNTRL); - writel(*ctx++, addr + APB_DMA_IRQ_MASK); - - for (i = 0; i < TEGRA_SYSTEM_DMA_CH_NR; i++) { - addr = IO_ADDRESS(TEGRA_APB_DMA_CH0_BASE + - TEGRA_APB_DMA_CH0_SIZE * i); - - writel(*ctx++, addr + APB_DMA_CHAN_CSR); - writel(*ctx++, addr + APB_DMA_CHAN_AHB_PTR); - writel(*ctx++, addr + APB_DMA_CHAN_AHB_SEQ); - writel(*ctx++, addr + APB_DMA_CHAN_APB_PTR); - writel(*ctx++, addr + APB_DMA_CHAN_APB_SEQ); - } -} - -#endif diff --git a/arch/arm/mach-tegra/include/mach/dma.h b/arch/arm/mach-tegra/include/mach/dma.h index 9077092812c0..3081cc6dda3b 100644 --- a/arch/arm/mach-tegra/include/mach/dma.h +++ b/arch/arm/mach-tegra/include/mach/dma.h @@ -51,101 +51,4 @@ #define TEGRA_DMA_REQ_SEL_OWR 25 #define TEGRA_DMA_REQ_SEL_INVALID 31 -struct tegra_dma_req; -struct tegra_dma_channel; - -enum tegra_dma_mode { - TEGRA_DMA_SHARED = 1, - TEGRA_DMA_MODE_CONTINOUS = 2, - TEGRA_DMA_MODE_ONESHOT = 4, -}; - -enum tegra_dma_req_error { - TEGRA_DMA_REQ_SUCCESS = 0, - TEGRA_DMA_REQ_ERROR_ABORTED, - TEGRA_DMA_REQ_INFLIGHT, -}; - -enum tegra_dma_req_buff_status { - TEGRA_DMA_REQ_BUF_STATUS_EMPTY = 0, - TEGRA_DMA_REQ_BUF_STATUS_HALF_FULL, - TEGRA_DMA_REQ_BUF_STATUS_FULL, -}; - -struct tegra_dma_req { - struct list_head node; - unsigned int modid; - int instance; - - /* Called when the req is complete and from the DMA ISR context. - * When this is called the req structure is no longer queued by - * the DMA channel. - * - * State of the DMA depends on the number of req it has. If there are - * no DMA requests queued up, then it will STOP the DMA. It there are - * more requests in the DMA, then it will queue the next request. - */ - void (*complete)(struct tegra_dma_req *req); - - /* This is a called from the DMA ISR context when the DMA is still in - * progress and is actively filling same buffer. - * - * In case of continuous mode receive, this threshold is 1/2 the buffer - * size. In other cases, this will not even be called as there is no - * hardware support for it. - * - * In the case of continuous mode receive, if there is next req already - * queued, DMA programs the HW to use that req when this req is - * completed. If there is no "next req" queued, then DMA ISR doesn't do - * anything before calling this callback. - * - * This is mainly used by the cases, where the clients has queued - * only one req and want to get some sort of DMA threshold - * callback to program the next buffer. - * - */ - void (*threshold)(struct tegra_dma_req *req); - - /* 1 to copy to memory. - * 0 to copy from the memory to device FIFO */ - int to_memory; - - void *virt_addr; - - unsigned long source_addr; - unsigned long dest_addr; - unsigned long dest_wrap; - unsigned long source_wrap; - unsigned long source_bus_width; - unsigned long dest_bus_width; - unsigned long req_sel; - unsigned int size; - - /* Updated by the DMA driver on the conpletion of the request. */ - int bytes_transferred; - int status; - - /* DMA completion tracking information */ - int buffer_status; - - /* Client specific data */ - void *dev; -}; - -int tegra_dma_enqueue_req(struct tegra_dma_channel *ch, - struct tegra_dma_req *req); -int tegra_dma_dequeue_req(struct tegra_dma_channel *ch, - struct tegra_dma_req *req); -void tegra_dma_dequeue(struct tegra_dma_channel *ch); -void tegra_dma_flush(struct tegra_dma_channel *ch); - -bool tegra_dma_is_req_inflight(struct tegra_dma_channel *ch, - struct tegra_dma_req *req); -bool tegra_dma_is_empty(struct tegra_dma_channel *ch); - -struct tegra_dma_channel *tegra_dma_allocate_channel(int mode); -void tegra_dma_free_channel(struct tegra_dma_channel *ch); - -int __init tegra_dma_init(void); - #endif -- cgit v1.2.1 From 6a2473c51a29c4a5498a13db1a2357792d42b78b Mon Sep 17 00:00:00 2001 From: Laxman Dewangan Date: Thu, 16 Aug 2012 04:13:15 +0000 Subject: ARM: tegra: apbio: remove support of legacy DMA driver based access Remove the support code which uses the legacy APB DMA driver for accessing the apbio register. The driver will use the dmaengine based APB DMA driver for accessing apbio register. Signed-off-by: Laxman Dewangan Signed-off-by: Stephen Warren --- arch/arm/mach-tegra/apbio.c | 118 +------------------------------------------- 1 file changed, 1 insertion(+), 117 deletions(-) diff --git a/arch/arm/mach-tegra/apbio.c b/arch/arm/mach-tegra/apbio.c index dc0fe389be56..47d7d2c404a8 100644 --- a/arch/arm/mach-tegra/apbio.c +++ b/arch/arm/mach-tegra/apbio.c @@ -28,7 +28,7 @@ #include "apbio.h" -#if defined(CONFIG_TEGRA_SYSTEM_DMA) || defined(CONFIG_TEGRA20_APB_DMA) +#if defined(CONFIG_TEGRA20_APB_DMA) static DEFINE_MUTEX(tegra_apb_dma_lock); static u32 *tegra_apb_bb; static dma_addr_t tegra_apb_bb_phys; @@ -37,121 +37,6 @@ static DECLARE_COMPLETION(tegra_apb_wait); static u32 tegra_apb_readl_direct(unsigned long offset); static void tegra_apb_writel_direct(u32 value, unsigned long offset); -#if defined(CONFIG_TEGRA_SYSTEM_DMA) -static struct tegra_dma_channel *tegra_apb_dma; - -bool tegra_apb_init(void) -{ - struct tegra_dma_channel *ch; - - mutex_lock(&tegra_apb_dma_lock); - - /* Check to see if we raced to setup */ - if (tegra_apb_dma) - goto out; - - ch = tegra_dma_allocate_channel(TEGRA_DMA_MODE_ONESHOT | - TEGRA_DMA_SHARED); - - if (!ch) - goto out_fail; - - tegra_apb_bb = dma_alloc_coherent(NULL, sizeof(u32), - &tegra_apb_bb_phys, GFP_KERNEL); - if (!tegra_apb_bb) { - pr_err("%s: can not allocate bounce buffer\n", __func__); - tegra_dma_free_channel(ch); - goto out_fail; - } - - tegra_apb_dma = ch; -out: - mutex_unlock(&tegra_apb_dma_lock); - return true; - -out_fail: - mutex_unlock(&tegra_apb_dma_lock); - return false; -} - -static void apb_dma_complete(struct tegra_dma_req *req) -{ - complete(&tegra_apb_wait); -} - -static u32 tegra_apb_readl_using_dma(unsigned long offset) -{ - struct tegra_dma_req req; - int ret; - - if (!tegra_apb_dma && !tegra_apb_init()) - return tegra_apb_readl_direct(offset); - - mutex_lock(&tegra_apb_dma_lock); - req.complete = apb_dma_complete; - req.to_memory = 1; - req.dest_addr = tegra_apb_bb_phys; - req.dest_bus_width = 32; - req.dest_wrap = 1; - req.source_addr = offset; - req.source_bus_width = 32; - req.source_wrap = 4; - req.req_sel = TEGRA_DMA_REQ_SEL_CNTR; - req.size = 4; - - INIT_COMPLETION(tegra_apb_wait); - - tegra_dma_enqueue_req(tegra_apb_dma, &req); - - ret = wait_for_completion_timeout(&tegra_apb_wait, - msecs_to_jiffies(50)); - - if (WARN(ret == 0, "apb read dma timed out")) { - tegra_dma_dequeue_req(tegra_apb_dma, &req); - *(u32 *)tegra_apb_bb = 0; - } - - mutex_unlock(&tegra_apb_dma_lock); - return *((u32 *)tegra_apb_bb); -} - -static void tegra_apb_writel_using_dma(u32 value, unsigned long offset) -{ - struct tegra_dma_req req; - int ret; - - if (!tegra_apb_dma && !tegra_apb_init()) { - tegra_apb_writel_direct(value, offset); - return; - } - - mutex_lock(&tegra_apb_dma_lock); - *((u32 *)tegra_apb_bb) = value; - req.complete = apb_dma_complete; - req.to_memory = 0; - req.dest_addr = offset; - req.dest_wrap = 4; - req.dest_bus_width = 32; - req.source_addr = tegra_apb_bb_phys; - req.source_bus_width = 32; - req.source_wrap = 1; - req.req_sel = TEGRA_DMA_REQ_SEL_CNTR; - req.size = 4; - - INIT_COMPLETION(tegra_apb_wait); - - tegra_dma_enqueue_req(tegra_apb_dma, &req); - - ret = wait_for_completion_timeout(&tegra_apb_wait, - msecs_to_jiffies(50)); - - if (WARN(ret == 0, "apb write dma timed out")) - tegra_dma_dequeue_req(tegra_apb_dma, &req); - - mutex_unlock(&tegra_apb_dma_lock); -} - -#else static struct dma_chan *tegra_apb_dma_chan; static struct dma_slave_config dma_sconfig; @@ -279,7 +164,6 @@ static void tegra_apb_writel_using_dma(u32 value, unsigned long offset) pr_err("error in writing offset 0x%08lx using dma\n", offset); mutex_unlock(&tegra_apb_dma_lock); } -#endif #else #define tegra_apb_readl_using_dma tegra_apb_readl_direct #define tegra_apb_writel_using_dma tegra_apb_writel_direct -- cgit v1.2.1 From 5bd27611818920b29597eb01ca11f079280cf218 Mon Sep 17 00:00:00 2001 From: Laxman Dewangan Date: Thu, 16 Aug 2012 04:13:16 +0000 Subject: spi: tegra: remove support of legacy DMA driver based access Remove the support code which uses the legacy APB DMA driver for accessing the SPI FIFO. The driver will use the dmaengine based APB DMA driver for accessing reqding/writing to SPI FIFO. Signed-off-by: Laxman Dewangan Signed-off-by: Stephen Warren Acked-by: Mark Brown --- drivers/spi/Kconfig | 2 +- drivers/spi/spi-tegra.c | 55 +------------------------------------------------ 2 files changed, 2 insertions(+), 55 deletions(-) diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig index 5f84b5563c2d..2d198a01a410 100644 --- a/drivers/spi/Kconfig +++ b/drivers/spi/Kconfig @@ -366,7 +366,7 @@ config SPI_STMP3XXX config SPI_TEGRA tristate "Nvidia Tegra SPI controller" - depends on ARCH_TEGRA && (TEGRA_SYSTEM_DMA || TEGRA20_APB_DMA) + depends on ARCH_TEGRA && TEGRA20_APB_DMA help SPI driver for NVidia Tegra SoCs diff --git a/drivers/spi/spi-tegra.c b/drivers/spi/spi-tegra.c index ef52c1c6f5c5..488d9b6e9cbe 100644 --- a/drivers/spi/spi-tegra.c +++ b/drivers/spi/spi-tegra.c @@ -164,23 +164,15 @@ struct spi_tegra_data { * for the generic case. */ int dma_req_len; -#if defined(CONFIG_TEGRA_SYSTEM_DMA) - struct tegra_dma_req rx_dma_req; - struct tegra_dma_channel *rx_dma; -#else struct dma_chan *rx_dma; struct dma_slave_config sconfig; struct dma_async_tx_descriptor *rx_dma_desc; dma_cookie_t rx_cookie; -#endif u32 *rx_bb; dma_addr_t rx_bb_phys; }; -#if !defined(CONFIG_TEGRA_SYSTEM_DMA) static void tegra_spi_rx_dma_complete(void *args); -#endif - static inline unsigned long spi_tegra_readl(struct spi_tegra_data *tspi, unsigned long reg) { @@ -204,10 +196,6 @@ static void spi_tegra_go(struct spi_tegra_data *tspi) val &= ~SLINK_DMA_BLOCK_SIZE(~0) & ~SLINK_DMA_EN; val |= SLINK_DMA_BLOCK_SIZE(tspi->dma_req_len / 4 - 1); spi_tegra_writel(tspi, val, SLINK_DMA_CTL); -#if defined(CONFIG_TEGRA_SYSTEM_DMA) - tspi->rx_dma_req.size = tspi->dma_req_len; - tegra_dma_enqueue_req(tspi->rx_dma, &tspi->rx_dma_req); -#else tspi->rx_dma_desc = dmaengine_prep_slave_single(tspi->rx_dma, tspi->rx_bb_phys, tspi->dma_req_len, DMA_DEV_TO_MEM, DMA_PREP_INTERRUPT); @@ -219,7 +207,6 @@ static void spi_tegra_go(struct spi_tegra_data *tspi) tspi->rx_dma_desc->callback_param = tspi; tspi->rx_cookie = dmaengine_submit(tspi->rx_dma_desc); dma_async_issue_pending(tspi->rx_dma); -#endif val |= SLINK_DMA_EN; spi_tegra_writel(tspi, val, SLINK_DMA_CTL); @@ -405,19 +392,12 @@ static void handle_spi_rx_dma_complete(struct spi_tegra_data *tspi) spin_unlock_irqrestore(&tspi->lock, flags); } -#if defined(CONFIG_TEGRA_SYSTEM_DMA) -static void tegra_spi_rx_dma_complete(struct tegra_dma_req *req) -{ - struct spi_tegra_data *tspi = req->dev; - handle_spi_rx_dma_complete(tspi); -} -#else + static void tegra_spi_rx_dma_complete(void *args) { struct spi_tegra_data *tspi = args; handle_spi_rx_dma_complete(tspi); } -#endif static int spi_tegra_setup(struct spi_device *spi) { @@ -509,9 +489,7 @@ static int __devinit spi_tegra_probe(struct platform_device *pdev) struct spi_tegra_data *tspi; struct resource *r; int ret; -#if !defined(CONFIG_TEGRA_SYSTEM_DMA) dma_cap_mask_t mask; -#endif master = spi_alloc_master(&pdev->dev, sizeof *tspi); if (master == NULL) { @@ -563,14 +541,6 @@ static int __devinit spi_tegra_probe(struct platform_device *pdev) INIT_LIST_HEAD(&tspi->queue); -#if defined(CONFIG_TEGRA_SYSTEM_DMA) - tspi->rx_dma = tegra_dma_allocate_channel(TEGRA_DMA_MODE_ONESHOT); - if (!tspi->rx_dma) { - dev_err(&pdev->dev, "can not allocate rx dma channel\n"); - ret = -ENODEV; - goto err3; - } -#else dma_cap_zero(mask); dma_cap_set(DMA_SLAVE, mask); tspi->rx_dma = dma_request_channel(mask, NULL, NULL); @@ -580,8 +550,6 @@ static int __devinit spi_tegra_probe(struct platform_device *pdev) goto err3; } -#endif - tspi->rx_bb = dma_alloc_coherent(&pdev->dev, sizeof(u32) * BB_LEN, &tspi->rx_bb_phys, GFP_KERNEL); if (!tspi->rx_bb) { @@ -590,17 +558,6 @@ static int __devinit spi_tegra_probe(struct platform_device *pdev) goto err4; } -#if defined(CONFIG_TEGRA_SYSTEM_DMA) - tspi->rx_dma_req.complete = tegra_spi_rx_dma_complete; - tspi->rx_dma_req.to_memory = 1; - tspi->rx_dma_req.dest_addr = tspi->rx_bb_phys; - tspi->rx_dma_req.dest_bus_width = 32; - tspi->rx_dma_req.source_addr = tspi->phys + SLINK_RX_FIFO; - tspi->rx_dma_req.source_bus_width = 32; - tspi->rx_dma_req.source_wrap = 4; - tspi->rx_dma_req.req_sel = spi_tegra_req_sels[pdev->id]; - tspi->rx_dma_req.dev = tspi; -#else /* Dmaengine Dma slave config */ tspi->sconfig.src_addr = tspi->phys + SLINK_RX_FIFO; tspi->sconfig.dst_addr = tspi->phys + SLINK_RX_FIFO; @@ -616,7 +573,6 @@ static int __devinit spi_tegra_probe(struct platform_device *pdev) ret); goto err4; } -#endif master->dev.of_node = pdev->dev.of_node; ret = spi_register_master(master); @@ -630,11 +586,7 @@ err5: dma_free_coherent(&pdev->dev, sizeof(u32) * BB_LEN, tspi->rx_bb, tspi->rx_bb_phys); err4: -#if defined(CONFIG_TEGRA_SYSTEM_DMA) - tegra_dma_free_channel(tspi->rx_dma); -#else dma_release_channel(tspi->rx_dma); -#endif err3: clk_put(tspi->clk); err2: @@ -656,12 +608,7 @@ static int __devexit spi_tegra_remove(struct platform_device *pdev) tspi = spi_master_get_devdata(master); spi_unregister_master(master); -#if defined(CONFIG_TEGRA_SYSTEM_DMA) - tegra_dma_free_channel(tspi->rx_dma); -#else dma_release_channel(tspi->rx_dma); -#endif - dma_free_coherent(&pdev->dev, sizeof(u32) * BB_LEN, tspi->rx_bb, tspi->rx_bb_phys); -- cgit v1.2.1 From 9891e3240543c45176b1298164418b61e8909ed0 Mon Sep 17 00:00:00 2001 From: Laxman Dewangan Date: Thu, 16 Aug 2012 04:13:17 +0000 Subject: ASoC: tegra: remove support of legacy DMA driver based access Remove the support code which uses the legacy APB DMA driver for accessing the I2S FIFO. The driver will use the dmaengine based APB DMA driver for accessing reqding/writing to I2S FIFO. Signed-off-by: Laxman Dewangan Signed-off-by: Stephen Warren Acked-by: Mark Brown --- sound/soc/tegra/Kconfig | 2 +- sound/soc/tegra/tegra_pcm.c | 232 -------------------------------------------- sound/soc/tegra/tegra_pcm.h | 14 --- 3 files changed, 1 insertion(+), 247 deletions(-) diff --git a/sound/soc/tegra/Kconfig b/sound/soc/tegra/Kconfig index 02bcd308c189..19e5fe7cc403 100644 --- a/sound/soc/tegra/Kconfig +++ b/sound/soc/tegra/Kconfig @@ -1,6 +1,6 @@ config SND_SOC_TEGRA tristate "SoC Audio for the Tegra System-on-Chip" - depends on ARCH_TEGRA && (TEGRA_SYSTEM_DMA || TEGRA20_APB_DMA) + depends on ARCH_TEGRA && TEGRA20_APB_DMA select REGMAP_MMIO select SND_SOC_DMAENGINE_PCM if TEGRA20_APB_DMA help diff --git a/sound/soc/tegra/tegra_pcm.c b/sound/soc/tegra/tegra_pcm.c index 8d6900c1ee47..e18733963cb4 100644 --- a/sound/soc/tegra/tegra_pcm.c +++ b/sound/soc/tegra/tegra_pcm.c @@ -57,237 +57,6 @@ static const struct snd_pcm_hardware tegra_pcm_hardware = { .fifo_size = 4, }; -#if defined(CONFIG_TEGRA_SYSTEM_DMA) -static void tegra_pcm_queue_dma(struct tegra_runtime_data *prtd) -{ - struct snd_pcm_substream *substream = prtd->substream; - struct snd_dma_buffer *buf = &substream->dma_buffer; - struct tegra_dma_req *dma_req; - unsigned long addr; - - dma_req = &prtd->dma_req[prtd->dma_req_idx]; - prtd->dma_req_idx = 1 - prtd->dma_req_idx; - - addr = buf->addr + prtd->dma_pos; - prtd->dma_pos += dma_req->size; - if (prtd->dma_pos >= prtd->dma_pos_end) - prtd->dma_pos = 0; - - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) - dma_req->source_addr = addr; - else - dma_req->dest_addr = addr; - - tegra_dma_enqueue_req(prtd->dma_chan, dma_req); -} - -static void dma_complete_callback(struct tegra_dma_req *req) -{ - struct tegra_runtime_data *prtd = (struct tegra_runtime_data *)req->dev; - struct snd_pcm_substream *substream = prtd->substream; - struct snd_pcm_runtime *runtime = substream->runtime; - - spin_lock(&prtd->lock); - - if (!prtd->running) { - spin_unlock(&prtd->lock); - return; - } - - if (++prtd->period_index >= runtime->periods) - prtd->period_index = 0; - - tegra_pcm_queue_dma(prtd); - - spin_unlock(&prtd->lock); - - snd_pcm_period_elapsed(substream); -} - -static void setup_dma_tx_request(struct tegra_dma_req *req, - struct tegra_pcm_dma_params * dmap) -{ - req->complete = dma_complete_callback; - req->to_memory = false; - req->dest_addr = dmap->addr; - req->dest_wrap = dmap->wrap; - req->source_bus_width = 32; - req->source_wrap = 0; - req->dest_bus_width = dmap->width; - req->req_sel = dmap->req_sel; -} - -static void setup_dma_rx_request(struct tegra_dma_req *req, - struct tegra_pcm_dma_params * dmap) -{ - req->complete = dma_complete_callback; - req->to_memory = true; - req->source_addr = dmap->addr; - req->dest_wrap = 0; - req->source_bus_width = dmap->width; - req->source_wrap = dmap->wrap; - req->dest_bus_width = 32; - req->req_sel = dmap->req_sel; -} - -static int tegra_pcm_open(struct snd_pcm_substream *substream) -{ - struct snd_pcm_runtime *runtime = substream->runtime; - struct tegra_runtime_data *prtd; - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct tegra_pcm_dma_params * dmap; - int ret = 0; - - prtd = kzalloc(sizeof(struct tegra_runtime_data), GFP_KERNEL); - if (prtd == NULL) - return -ENOMEM; - - runtime->private_data = prtd; - prtd->substream = substream; - - spin_lock_init(&prtd->lock); - - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { - dmap = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream); - setup_dma_tx_request(&prtd->dma_req[0], dmap); - setup_dma_tx_request(&prtd->dma_req[1], dmap); - } else { - dmap = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream); - setup_dma_rx_request(&prtd->dma_req[0], dmap); - setup_dma_rx_request(&prtd->dma_req[1], dmap); - } - - prtd->dma_req[0].dev = prtd; - prtd->dma_req[1].dev = prtd; - - prtd->dma_chan = tegra_dma_allocate_channel(TEGRA_DMA_MODE_ONESHOT); - if (prtd->dma_chan == NULL) { - ret = -ENOMEM; - goto err; - } - - /* Set HW params now that initialization is complete */ - snd_soc_set_runtime_hwparams(substream, &tegra_pcm_hardware); - - /* Ensure that buffer size is a multiple of period size */ - ret = snd_pcm_hw_constraint_integer(runtime, - SNDRV_PCM_HW_PARAM_PERIODS); - if (ret < 0) - goto err; - - return 0; - -err: - if (prtd->dma_chan) { - tegra_dma_free_channel(prtd->dma_chan); - } - - kfree(prtd); - - return ret; -} - -static int tegra_pcm_close(struct snd_pcm_substream *substream) -{ - struct snd_pcm_runtime *runtime = substream->runtime; - struct tegra_runtime_data *prtd = runtime->private_data; - - tegra_dma_free_channel(prtd->dma_chan); - - kfree(prtd); - - return 0; -} - -static int tegra_pcm_hw_params(struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *params) -{ - struct snd_pcm_runtime *runtime = substream->runtime; - struct tegra_runtime_data *prtd = runtime->private_data; - - snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer); - - prtd->dma_req[0].size = params_period_bytes(params); - prtd->dma_req[1].size = prtd->dma_req[0].size; - - return 0; -} - -static int tegra_pcm_hw_free(struct snd_pcm_substream *substream) -{ - snd_pcm_set_runtime_buffer(substream, NULL); - - return 0; -} - -static int tegra_pcm_trigger(struct snd_pcm_substream *substream, int cmd) -{ - struct snd_pcm_runtime *runtime = substream->runtime; - struct tegra_runtime_data *prtd = runtime->private_data; - unsigned long flags; - - switch (cmd) { - case SNDRV_PCM_TRIGGER_START: - prtd->dma_pos = 0; - prtd->dma_pos_end = frames_to_bytes(runtime, runtime->periods * runtime->period_size); - prtd->period_index = 0; - prtd->dma_req_idx = 0; - /* Fall-through */ - case SNDRV_PCM_TRIGGER_RESUME: - case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: - spin_lock_irqsave(&prtd->lock, flags); - prtd->running = 1; - spin_unlock_irqrestore(&prtd->lock, flags); - tegra_pcm_queue_dma(prtd); - tegra_pcm_queue_dma(prtd); - break; - case SNDRV_PCM_TRIGGER_STOP: - case SNDRV_PCM_TRIGGER_SUSPEND: - case SNDRV_PCM_TRIGGER_PAUSE_PUSH: - spin_lock_irqsave(&prtd->lock, flags); - prtd->running = 0; - spin_unlock_irqrestore(&prtd->lock, flags); - tegra_dma_dequeue_req(prtd->dma_chan, &prtd->dma_req[0]); - tegra_dma_dequeue_req(prtd->dma_chan, &prtd->dma_req[1]); - break; - default: - return -EINVAL; - } - - return 0; -} - -static snd_pcm_uframes_t tegra_pcm_pointer(struct snd_pcm_substream *substream) -{ - struct snd_pcm_runtime *runtime = substream->runtime; - struct tegra_runtime_data *prtd = runtime->private_data; - - return prtd->period_index * runtime->period_size; -} - - -static int tegra_pcm_mmap(struct snd_pcm_substream *substream, - struct vm_area_struct *vma) -{ - struct snd_pcm_runtime *runtime = substream->runtime; - - return dma_mmap_writecombine(substream->pcm->card->dev, vma, - runtime->dma_area, - runtime->dma_addr, - runtime->dma_bytes); -} - -static struct snd_pcm_ops tegra_pcm_ops = { - .open = tegra_pcm_open, - .close = tegra_pcm_close, - .ioctl = snd_pcm_lib_ioctl, - .hw_params = tegra_pcm_hw_params, - .hw_free = tegra_pcm_hw_free, - .trigger = tegra_pcm_trigger, - .pointer = tegra_pcm_pointer, - .mmap = tegra_pcm_mmap, -}; -#else static int tegra_pcm_open(struct snd_pcm_substream *substream) { struct snd_soc_pcm_runtime *rtd = substream->private_data; @@ -399,7 +168,6 @@ static struct snd_pcm_ops tegra_pcm_ops = { .pointer = snd_dmaengine_pcm_pointer, .mmap = tegra_pcm_mmap, }; -#endif static int tegra_pcm_preallocate_dma_buffer(struct snd_pcm *pcm, int stream) { diff --git a/sound/soc/tegra/tegra_pcm.h b/sound/soc/tegra/tegra_pcm.h index a3a450352dcf..b40279b9f413 100644 --- a/sound/soc/tegra/tegra_pcm.h +++ b/sound/soc/tegra/tegra_pcm.h @@ -40,20 +40,6 @@ struct tegra_pcm_dma_params { unsigned long req_sel; }; -#if defined(CONFIG_TEGRA_SYSTEM_DMA) -struct tegra_runtime_data { - struct snd_pcm_substream *substream; - spinlock_t lock; - int running; - int dma_pos; - int dma_pos_end; - int period_index; - int dma_req_idx; - struct tegra_dma_req dma_req[2]; - struct tegra_dma_channel *dma_chan; -}; -#endif - int tegra_pcm_platform_register(struct device *dev); void tegra_pcm_platform_unregister(struct device *dev); -- cgit v1.2.1