| Commit message (Collapse) | Author | Age | Files | Lines |
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When cable is not present the clock speed of some of the devices is
reduced based upon power saving mode setting in NVRAM. Due to this
NVRAM reads take long time to complete as a result CPU soft lockup
message is seen. Fix is to override clock, disable link aware and link
idle modes before NVRAM reads and restore them back after the reads
are complete. During this period also check if the thread needs to be
rescheduled and if there are any signals to handle.
Also decrease the NVRAM command execution timeout value to 1ms.
Signed-off-by: Prashant Sreedharan <prashant@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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kernel always invokes a pair of rtnl_lock adn rtnl_unlock to
protect dev_ethtool(), so its not neccessary to invoke spin_lock/unlock
in ethtool_ops.
Signed-off-by: Yang Wei <Wei.Yang@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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sock_fprog and sock_fprog_kern are of equal size, however
it's cleaner to just use sizeof(*fprog) instead to always
have correct type.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Users are currently just providing "ks8851" as the compatible for
this driver in device tree. Add a compatible string that provides
the vendor name along with the device name to be more explicit.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Allow the ks8851 driver to enable an optional 1.8V vdd_io
regulator and assert the reset pin to the phy if a reset gpio is
present in device tree.
Cc: Nishanth Menon <nm@ti.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This simplifies error paths and removes the need to
regulator_put().
Cc: Nishanth Menon <nm@ti.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Conflicts:
drivers/net/bonding/bond_alb.c
drivers/net/ethernet/altera/altera_msgdma.c
drivers/net/ethernet/altera/altera_sgdma.c
net/ipv6/xfrm6_output.c
Several cases of overlapping changes.
The xfrm6_output.c has a bug fix which overlaps the renaming
of skb->local_df to skb->ignore_df.
In the Altera TSE driver cases, the register access cleanups
in net-next overlapped with bug fixes done in net.
Similarly a bug fix to send ALB packets in the bonding driver using
the right source address overlaps with cleanups in net-next.
Signed-off-by: David S. Miller <davem@davemloft.net>
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ALB learning packets are currentlyalways sent using the slave mac
address for all vlans configured on top of bond. This is not always
correct, as vlans may change their mac address.
This patch introduced a concept of strict matching where the
source of learning packets can either strictly match the address
passed in, or it can determine a more correct address to use.
There are 3 casese to consider:
1) Switchover. In this case, we have a new active slave and we need
tell the switch about all addresses available on the slave.
2) Monitor. We'll periodically refresh learning info for all slaves.
In this case, we refresh all addresses for current active, and just
the slave address for other slaves.
3) Teaching of disabled adddress. This happens as part of the
failover and in this case, we alwyas to use just the address
provided.
CC: Jay Vosburgh <j.vosburgh@gmail.com>
CC: Veaceslav Falico <vfalico@gmail.com>
CC: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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TLB/ALB learning packets always assume 802.1Q vlan protocol, but
that is no longer the case since we now have support for Q-in-Q
on top of bonding. Pass the vlan protocol to alb_send_lp_vid()
so that the packets are properly tagged.
CC: Jay Vosburgh <j.vosburgh@gmail.com>
CC: Veaceslav Falico <vfalico@gmail.com>
CC: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Acked-by: Veaceslav Falico <vfalico@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://gitorious.org/linux-can/linux-can
Marc Kleine-Budde says:
====================
pull-request: can 2014-05-21
this is a pull request for net/master, for the v3.15 release cycle, with a
single patch. Christopher R. Baker found a use after free during unloading of
the peak_pci driver. This is fixes in a patch by Stephane Grosjean.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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As remarked by Christopher R. Baker in his post at
http://marc.info/?l=linux-can&m=139707295706465&w=2
there's a possibility for an use after free condition at device removal.
This simplified patch introduces an additional variable to prevent the issue.
Thanks for catching this.
Cc: linux-stable <stable@vger.kernel.org>
Reported-by: Christopher R. Baker <cbaker@rec.ri.cmu.edu>
Signed-off-by: Stephane Grosjean <s.grosjean@peak-system.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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The stmmac_open call was calling clk_disable_unprepare on phy init
failure, but it never calls clk_prepare_enable, this causes
a WARN_ON in the clk framework to trigger if for some reason phy init
fails.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In 2b9aecdce2 ("can: c_can: Disable rx split as workaround") a new Kconfig
option was introduced as a workaround. The tests performed by Alexander Stein
confirmed this option to be obsolete with all the other cleanups and fixes
that had been discussed that time:
http://marc.info/?l=linux-can&m=139746476821294&w=2
Both (author and tester) agreed to remove this Kconfig option again:
http://marc.info/?l=linux-can&m=139883820714229&w=2
As some more cleanups took place since then a simple revert is not possible.
This patch removes the entire option as it would behave when disabled.
Further beautification’s can be done later.
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Tested-by: Alexander Stein <alexander.stein@systec-electronic.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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These "return 0;" uses seem wrong as there are
rc variables where error return values are set
but unused.
Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Dmitry Kravkov <Dmitry.Kravkov@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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ALB/TLB learning packets use all vlans configured on top
of the bond. This ends up being incorrect if we have a stack
of vlans on top of the bond. ALB/TLB should only use
first level/outer most vlans in its announcements.
Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Prior to commit fbd929f2dce460456807a51e18d623db3db9f077
bonding: support QinQ for bond arp interval
the arp monitoring code allowed for proper detection of devices
stacked on top of vlans. Since the above commit, the
code can still detect a device stacked on top of single
vlan, but not a device stacked on top of Q-in-Q configuration.
The search will only set the inner vlan tag if the route
device is the vlan device. However, this is not always the
case, as it is possible to extend the stacked configuration.
With this patch it is possible to provision devices on
top Q-in-Q vlan configuration that should be used as
a source of ARP monitoring information.
For example:
ip link add link bond0 vlan10 type vlan proto 802.1q id 10
ip link add link vlan10 vlan100 type vlan proto 802.1q id 100
ip link add link vlan100 type macvlan
Note: This patch limites the number of stacked VLANs to 2,
just like before. The original, however had another issue
in that if we had more then 2 levels of VLANs, we would end
up generating incorrectly tagged traffic. This is no longer
possible.
Fixes: fbd929f2dce460456807a51e18d623db3db9f077 (bonding: support QinQ for bond arp interval)
CC: Jay Vosburgh <j.vosburgh@gmail.com>
CC: Veaceslav Falico <vfalico@redhat.com>
CC: Andy Gospodarek <andy@greyhouse.net>
CC: Ding Tianhong <dingtianhong@huawei.com>
CC: Patric McHardy <kaber@trash.net>
Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Macvlan devices try to avoid stacking, but that's not always
successfull or even desired. As an example, the following
configuration is perefectly legal and valid:
eth0 <--- macvlan0 <---- vlan0.10 <--- macvlan1
However, this configuration produces the following lockdep
trace:
[ 115.620418] ======================================================
[ 115.620477] [ INFO: possible circular locking dependency detected ]
[ 115.620516] 3.15.0-rc1+ #24 Not tainted
[ 115.620540] -------------------------------------------------------
[ 115.620577] ip/1704 is trying to acquire lock:
[ 115.620604] (&vlan_netdev_addr_lock_key/1){+.....}, at: [<ffffffff815df49c>] dev_uc_sync+0x3c/0x80
[ 115.620686]
but task is already holding lock:
[ 115.620723] (&macvlan_netdev_addr_lock_key){+.....}, at: [<ffffffff815da5be>] dev_set_rx_mode+0x1e/0x40
[ 115.620795]
which lock already depends on the new lock.
[ 115.620853]
the existing dependency chain (in reverse order) is:
[ 115.620894]
-> #1 (&macvlan_netdev_addr_lock_key){+.....}:
[ 115.620935] [<ffffffff810d57f2>] lock_acquire+0xa2/0x130
[ 115.620974] [<ffffffff816f62e7>] _raw_spin_lock_nested+0x37/0x50
[ 115.621019] [<ffffffffa07296c3>] vlan_dev_set_rx_mode+0x53/0x110 [8021q]
[ 115.621066] [<ffffffff815da557>] __dev_set_rx_mode+0x57/0xa0
[ 115.621105] [<ffffffff815da5c6>] dev_set_rx_mode+0x26/0x40
[ 115.621143] [<ffffffff815da6be>] __dev_open+0xde/0x140
[ 115.621174] [<ffffffff815da9ad>] __dev_change_flags+0x9d/0x170
[ 115.621174] [<ffffffff815daaa9>] dev_change_flags+0x29/0x60
[ 115.621174] [<ffffffff815e7f11>] do_setlink+0x321/0x9a0
[ 115.621174] [<ffffffff815ea59f>] rtnl_newlink+0x51f/0x730
[ 115.621174] [<ffffffff815e6e75>] rtnetlink_rcv_msg+0x95/0x250
[ 115.621174] [<ffffffff81608b19>] netlink_rcv_skb+0xa9/0xc0
[ 115.621174] [<ffffffff815e6dca>] rtnetlink_rcv+0x2a/0x40
[ 115.621174] [<ffffffff81608150>] netlink_unicast+0xf0/0x1c0
[ 115.621174] [<ffffffff8160851f>] netlink_sendmsg+0x2ff/0x740
[ 115.621174] [<ffffffff815bc9db>] sock_sendmsg+0x8b/0xc0
[ 115.621174] [<ffffffff815bd4b9>] ___sys_sendmsg+0x369/0x380
[ 115.621174] [<ffffffff815bdbb2>] __sys_sendmsg+0x42/0x80
[ 115.621174] [<ffffffff815bdc02>] SyS_sendmsg+0x12/0x20
[ 115.621174] [<ffffffff816ffd69>] system_call_fastpath+0x16/0x1b
[ 115.621174]
-> #0 (&vlan_netdev_addr_lock_key/1){+.....}:
[ 115.621174] [<ffffffff810d4d43>] __lock_acquire+0x1773/0x1a60
[ 115.621174] [<ffffffff810d57f2>] lock_acquire+0xa2/0x130
[ 115.621174] [<ffffffff816f62e7>] _raw_spin_lock_nested+0x37/0x50
[ 115.621174] [<ffffffff815df49c>] dev_uc_sync+0x3c/0x80
[ 115.621174] [<ffffffffa0696d2a>] macvlan_set_mac_lists+0xca/0x110 [macvlan]
[ 115.621174] [<ffffffff815da557>] __dev_set_rx_mode+0x57/0xa0
[ 115.621174] [<ffffffff815da5c6>] dev_set_rx_mode+0x26/0x40
[ 115.621174] [<ffffffff815da6be>] __dev_open+0xde/0x140
[ 115.621174] [<ffffffff815da9ad>] __dev_change_flags+0x9d/0x170
[ 115.621174] [<ffffffff815daaa9>] dev_change_flags+0x29/0x60
[ 115.621174] [<ffffffff815e7f11>] do_setlink+0x321/0x9a0
[ 115.621174] [<ffffffff815ea59f>] rtnl_newlink+0x51f/0x730
[ 115.621174] [<ffffffff815e6e75>] rtnetlink_rcv_msg+0x95/0x250
[ 115.621174] [<ffffffff81608b19>] netlink_rcv_skb+0xa9/0xc0
[ 115.621174] [<ffffffff815e6dca>] rtnetlink_rcv+0x2a/0x40
[ 115.621174] [<ffffffff81608150>] netlink_unicast+0xf0/0x1c0
[ 115.621174] [<ffffffff8160851f>] netlink_sendmsg+0x2ff/0x740
[ 115.621174] [<ffffffff815bc9db>] sock_sendmsg+0x8b/0xc0
[ 115.621174] [<ffffffff815bd4b9>] ___sys_sendmsg+0x369/0x380
[ 115.621174] [<ffffffff815bdbb2>] __sys_sendmsg+0x42/0x80
[ 115.621174] [<ffffffff815bdc02>] SyS_sendmsg+0x12/0x20
[ 115.621174] [<ffffffff816ffd69>] system_call_fastpath+0x16/0x1b
[ 115.621174]
other info that might help us debug this:
[ 115.621174] Possible unsafe locking scenario:
[ 115.621174] CPU0 CPU1
[ 115.621174] ---- ----
[ 115.621174] lock(&macvlan_netdev_addr_lock_key);
[ 115.621174] lock(&vlan_netdev_addr_lock_key/1);
[ 115.621174] lock(&macvlan_netdev_addr_lock_key);
[ 115.621174] lock(&vlan_netdev_addr_lock_key/1);
[ 115.621174]
*** DEADLOCK ***
[ 115.621174] 2 locks held by ip/1704:
[ 115.621174] #0: (rtnl_mutex){+.+.+.}, at: [<ffffffff815e6dbb>] rtnetlink_rcv+0x1b/0x40
[ 115.621174] #1: (&macvlan_netdev_addr_lock_key){+.....}, at: [<ffffffff815da5be>] dev_set_rx_mode+0x1e/0x40
[ 115.621174]
stack backtrace:
[ 115.621174] CPU: 3 PID: 1704 Comm: ip Not tainted 3.15.0-rc1+ #24
[ 115.621174] Hardware name: Hewlett-Packard HP xw8400 Workstation/0A08h, BIOS 786D5 v02.38 10/25/2010
[ 115.621174] ffffffff82339ae0 ffff880465f79568 ffffffff816ee20c ffffffff82339ae0
[ 115.621174] ffff880465f795a8 ffffffff816e9e1b ffff880465f79600 ffff880465b019c8
[ 115.621174] 0000000000000001 0000000000000002 ffff880465b019c8 ffff880465b01230
[ 115.621174] Call Trace:
[ 115.621174] [<ffffffff816ee20c>] dump_stack+0x4d/0x66
[ 115.621174] [<ffffffff816e9e1b>] print_circular_bug+0x200/0x20e
[ 115.621174] [<ffffffff810d4d43>] __lock_acquire+0x1773/0x1a60
[ 115.621174] [<ffffffff810d3172>] ? trace_hardirqs_on_caller+0xb2/0x1d0
[ 115.621174] [<ffffffff810d57f2>] lock_acquire+0xa2/0x130
[ 115.621174] [<ffffffff815df49c>] ? dev_uc_sync+0x3c/0x80
[ 115.621174] [<ffffffff816f62e7>] _raw_spin_lock_nested+0x37/0x50
[ 115.621174] [<ffffffff815df49c>] ? dev_uc_sync+0x3c/0x80
[ 115.621174] [<ffffffff815df49c>] dev_uc_sync+0x3c/0x80
[ 115.621174] [<ffffffffa0696d2a>] macvlan_set_mac_lists+0xca/0x110 [macvlan]
[ 115.621174] [<ffffffff815da557>] __dev_set_rx_mode+0x57/0xa0
[ 115.621174] [<ffffffff815da5c6>] dev_set_rx_mode+0x26/0x40
[ 115.621174] [<ffffffff815da6be>] __dev_open+0xde/0x140
[ 115.621174] [<ffffffff815da9ad>] __dev_change_flags+0x9d/0x170
[ 115.621174] [<ffffffff815daaa9>] dev_change_flags+0x29/0x60
[ 115.621174] [<ffffffff811e1db1>] ? mem_cgroup_bad_page_check+0x21/0x30
[ 115.621174] [<ffffffff815e7f11>] do_setlink+0x321/0x9a0
[ 115.621174] [<ffffffff810d394c>] ? __lock_acquire+0x37c/0x1a60
[ 115.621174] [<ffffffff815ea59f>] rtnl_newlink+0x51f/0x730
[ 115.621174] [<ffffffff815ea169>] ? rtnl_newlink+0xe9/0x730
[ 115.621174] [<ffffffff815e6e75>] rtnetlink_rcv_msg+0x95/0x250
[ 115.621174] [<ffffffff810d329d>] ? trace_hardirqs_on+0xd/0x10
[ 115.621174] [<ffffffff815e6dbb>] ? rtnetlink_rcv+0x1b/0x40
[ 115.621174] [<ffffffff815e6de0>] ? rtnetlink_rcv+0x40/0x40
[ 115.621174] [<ffffffff81608b19>] netlink_rcv_skb+0xa9/0xc0
[ 115.621174] [<ffffffff815e6dca>] rtnetlink_rcv+0x2a/0x40
[ 115.621174] [<ffffffff81608150>] netlink_unicast+0xf0/0x1c0
[ 115.621174] [<ffffffff8160851f>] netlink_sendmsg+0x2ff/0x740
[ 115.621174] [<ffffffff815bc9db>] sock_sendmsg+0x8b/0xc0
[ 115.621174] [<ffffffff8119d4af>] ? might_fault+0x5f/0xb0
[ 115.621174] [<ffffffff8119d4f8>] ? might_fault+0xa8/0xb0
[ 115.621174] [<ffffffff8119d4af>] ? might_fault+0x5f/0xb0
[ 115.621174] [<ffffffff815cb51e>] ? verify_iovec+0x5e/0xe0
[ 115.621174] [<ffffffff815bd4b9>] ___sys_sendmsg+0x369/0x380
[ 115.621174] [<ffffffff816faa0d>] ? __do_page_fault+0x11d/0x570
[ 115.621174] [<ffffffff810cfe9f>] ? up_read+0x1f/0x40
[ 115.621174] [<ffffffff816fab04>] ? __do_page_fault+0x214/0x570
[ 115.621174] [<ffffffff8120a10b>] ? mntput_no_expire+0x6b/0x1c0
[ 115.621174] [<ffffffff8120a0b7>] ? mntput_no_expire+0x17/0x1c0
[ 115.621174] [<ffffffff8120a284>] ? mntput+0x24/0x40
[ 115.621174] [<ffffffff815bdbb2>] __sys_sendmsg+0x42/0x80
[ 115.621174] [<ffffffff815bdc02>] SyS_sendmsg+0x12/0x20
[ 115.621174] [<ffffffff816ffd69>] system_call_fastpath+0x16/0x1b
Fix this by correctly providing macvlan lockdep class.
Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When the NAPI budget was not all used, xenvif_poll() would call
napi_complete() /after/ enabling the interrupt. This resulted in a
race between the napi_complete() and the napi_schedule() in the
interrupt handler. The use of local_irq_save/restore() avoided by
race iff the handler is running on the same CPU but not if it was
running on a different CPU.
Fix this properly by calling napi_complete() before reenabling
interrupts (in the xenvif_napi_schedule_or_enable_irq() call).
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
John W. Linville says:
====================
pull request: wireless 2014-05-15
Please pull this batch of fixes for the 3.15 stream...
For the mac80211 bits, Johannes says:
"One fix is to get better VHT performance and the other fixes tracing
garbage or other potential issues with the interface name tracing."
And...
"This has a fix from Emmanuel for a problem I failed to fix - when
association is in progress then it needs to be cancelled while
suspending (I had fixed the same for authentication). Also included a
fix from myself for a userspace API problem that hit the iw tool and a
fix to the remain-on-channel framework."
For the iwlwifi bits, Emmanuel says:
"Alex fixes the scan by disabling the fragmented scan. David prevents
scan offload while associated, the firmware seems not to like it. I
fix a stupid bug I made in BT Coex, and fix a bad #ifdef clause in rate
scaling. Along with that there is a fix for a NULL pointer exception
that can happen if we load the driver and our ISR gets called because
the interrupt line is shared. The fix has been tested by the reporter."
And...
"We have here a fix from David Spinadel that makes a previous fix more
complete, and an off-by-one issue fixed by Eliad in the same area.
I fix the monitor that broke on the way."
Beyond that...
Daniel Kim's one-liner fixes a brcmfmac regression caused by a typo
in an earlier commit..
Rajkumar Manoharan fixes an ath9k oops reported by David Herrmann.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem
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During remain on channel request, ANI worker thread is not stopped
before doing hw reset. This is causing kernel crash in
hw_per_calibration. This change ensures that ANI is stopped before
doing chip reset and it will be rescheduled later when the chip is
configured back to home channel and having valid bss.
Reported-by: David Herrmann <dh.herrmann@gmail.com>
Tested-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-fixes
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Prevent sched scan while not idle (including during association or in AP
mode) instead of while associated only.
This fixes my previous commit which was incomplete:
commit bd5e4744a6ca64299b57a2682c720d00a475a734
Author: David Spinadel <david.spinadel@intel.com>
Date: Thu Apr 24 13:15:29 2014 +0300
iwlwifi: mvm: do no sched scan while associated
Currently the FW doesn't support sched scan while associated,
Prevent it.
Signed-off-by: David Spinadel <david.spinadel@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
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tail should be equal to the last valid index, so
decrease it by one.
This error causes in "a gap" in some cases (as well as
some possible out-of-bound write), finally resulting in
ucode assertion.
Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
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There was a deadlock in monitor mode when we were setting the
channel if the channel was not 1.
======================================================
[ INFO: possible circular locking dependency detected ]
3.14.3 #4 Not tainted
-------------------------------------------------------
iw/3323 is trying to acquire lock:
(&local->chanctx_mtx){+.+.+.}, at: [<ffffffffa062e2f2>] ieee80211_vif_release_channel+0x42/0xb0 [mac80211]
but task is already holding lock:
(&local->iflist_mtx){+.+...}, at: [<ffffffffa0609e0a>] ieee80211_set_monitor_channel+0x5a/0x1b0 [mac80211]
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #2 (&local->iflist_mtx){+.+...}:
[<ffffffff810d95bb>] __lock_acquire+0xb3b/0x13b0
[<ffffffff810d9ee0>] lock_acquire+0xb0/0x1f0
[<ffffffff817eb9c8>] mutex_lock_nested+0x78/0x4f0
[<ffffffffa06225cf>] ieee80211_iterate_active_interfaces+0x2f/0x60 [mac80211]
[<ffffffffa0518189>] iwl_mvm_recalc_multicast+0x49/0xa0 [iwlmvm]
[<ffffffffa051822e>] iwl_mvm_configure_filter+0x4e/0x70 [iwlmvm]
[<ffffffffa05e6d43>] ieee80211_configure_filter+0x153/0x5f0 [mac80211]
[<ffffffffa05e71f5>] ieee80211_reconfig_filter+0x15/0x20 [mac80211]
[snip]
-> #1 (&mvm->mutex){+.+.+.}:
[<ffffffff810d95bb>] __lock_acquire+0xb3b/0x13b0
[<ffffffff810d9ee0>] lock_acquire+0xb0/0x1f0
[<ffffffff817eb9c8>] mutex_lock_nested+0x78/0x4f0
[<ffffffffa0517246>] iwl_mvm_add_chanctx+0x56/0xe0 [iwlmvm]
[<ffffffffa062ca1e>] ieee80211_new_chanctx+0x13e/0x410 [mac80211]
[<ffffffffa062d953>] ieee80211_vif_use_channel+0x1c3/0x5a0 [mac80211]
[<ffffffffa06035ab>] ieee80211_add_virtual_monitor+0x1ab/0x6b0 [mac80211]
[<ffffffffa06052ea>] ieee80211_do_open+0xe6a/0x15a0 [mac80211]
[<ffffffffa0605a79>] ieee80211_open+0x59/0x60 [mac80211]
[snip]
-> #0 (&local->chanctx_mtx){+.+.+.}:
[<ffffffff810d6cb7>] check_prevs_add+0x977/0x980
[<ffffffff810d95bb>] __lock_acquire+0xb3b/0x13b0
[<ffffffff810d9ee0>] lock_acquire+0xb0/0x1f0
[<ffffffff817eb9c8>] mutex_lock_nested+0x78/0x4f0
[<ffffffffa062e2f2>] ieee80211_vif_release_channel+0x42/0xb0 [mac80211]
[<ffffffffa0609ec3>] ieee80211_set_monitor_channel+0x113/0x1b0 [mac80211]
[<ffffffffa058fb37>] cfg80211_set_monitor_channel+0x77/0x2b0 [cfg80211]
[<ffffffffa056e0b2>] __nl80211_set_channel+0x122/0x140 [cfg80211]
[<ffffffffa0581374>] nl80211_set_wiphy+0x284/0xaf0 [cfg80211]
[snip]
other info that might help us debug this:
Chain exists of:
&local->chanctx_mtx --> &mvm->mutex --> &local->iflist_mtx
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&local->iflist_mtx);
lock(&mvm->mutex);
lock(&local->iflist_mtx);
lock(&local->chanctx_mtx);
*** DEADLOCK ***
This deadlock actually occurs:
INFO: task iw:3323 blocked for more than 120 seconds.
Not tainted 3.14.3 #4
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
iw D ffff8800c8afcd80 4192 3323 3322 0x00000000
ffff880078fdb7e0 0000000000000046 ffff8800c8afcd80 ffff880078fdbfd8
00000000001d5540 00000000001d5540 ffff8801141b0000 ffff8800c8afcd80
ffff880078ff9e38 ffff880078ff9e38 ffff880078ff9e40 0000000000000246
Call Trace:
[<ffffffff817ea841>] schedule_preempt_disabled+0x31/0x80
[<ffffffff817ebaed>] mutex_lock_nested+0x19d/0x4f0
[<ffffffffa06225cf>] ? ieee80211_iterate_active_interfaces+0x2f/0x60 [mac80211]
[<ffffffffa06225cf>] ? ieee80211_iterate_active_interfaces+0x2f/0x60 [mac80211]
[<ffffffffa052a680>] ? iwl_mvm_power_mac_update_mode+0xc0/0xc0 [iwlmvm]
[<ffffffffa06225cf>] ieee80211_iterate_active_interfaces+0x2f/0x60 [mac80211]
[<ffffffffa0529357>] _iwl_mvm_power_update_binding+0x27/0x80 [iwlmvm]
[<ffffffffa0516eb1>] iwl_mvm_unassign_vif_chanctx+0x81/0xc0 [iwlmvm]
[<ffffffffa062d3ff>] __ieee80211_vif_release_channel+0xdf/0x470 [mac80211]
[<ffffffffa062e2fa>] ieee80211_vif_release_channel+0x4a/0xb0 [mac80211]
[<ffffffffa0609ec3>] ieee80211_set_monitor_channel+0x113/0x1b0 [mac80211]
[<ffffffffa058fb37>] cfg80211_set_monitor_channel+0x77/0x2b0 [cfg80211]
[<ffffffffa056e0b2>] __nl80211_set_channel+0x122/0x140 [cfg80211]
[<ffffffffa0581374>] nl80211_set_wiphy+0x284/0xaf0 [cfg80211]
This fixes https://bugzilla.kernel.org/show_bug.cgi?id=75541
Cc: <stable@vger.kernel.org> [3.13+]
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
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Fix iovar 'bw_cap' set command failure introduced by
commit ff3b0fba6f25555ef59c55d138a467d0f81d82d7
Author: Arend van Spriel <arend@broadcom.com>
Date: Sat Mar 15 12:00:57 2014 +0100
brcmfmac: fallback to mimo_bw_cap for older firmwares
This resulted in disabling 20MHz operation in the firmware.
Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Signed-off-by: Daniel Kim <dekim@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-fixes
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In case RFKILL is in KILL position, the NIC will issue an
interrupt straight away. This interrupt won't be sent
because it is masked in the hardware.
But if our interrupt service routine is called for another
reason (SHARED_IRQ), then we'll look at the interrupt cause
and service it. This can cause bad things if we are not
ready yet.
Explicitly clean the interrupt cause register to make sure
we won't service anything before we are ready to.
Cc: <stable@vger.kernel.org> [3.14]
Reported-and-tested-by: Alexander Monakov <amonakov@gmail.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
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Currently the FW doesn't support sched scan while associated,
Prevent it.
Signed-off-by: David Spinadel <david.spinadel@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
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My bad - I forgot to update this when sending the patch
upstream.
Fixes: 87d5e4155c00 ("iwlwifi: mvm: rs: reinit rs if no tx for a long time")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
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The commit below introduced a bug in the validity bits in
init. Due to that, all the Coex mechanism stopped sending
kills to the BT side. Fix that.
Fixes: b9fae2d54c9f ("iwlwifi: mvm: BT Coex add support for Co-running block")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
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The firmware doesn't handle properly the fragmented scan.
Stop using it.
While at it change max_out_time and suspend_time units from
usec to TUs as expected by firmware API.
Signed-off-by: Alexander Bondar <alexander.bondar@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
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With commit be9dad1f9f26604fb ("net: phy: suspend phydev when going
to HALTED"), an unused PHY device will be put in a low-power mode
using BMCR_PDOWN. Some Ethernet drivers might be calling phy_start()
and phy_stop() from ndo_open and ndo_close() respectively, while
calling phy_connect() and phy_disconnect() from probe and remove.
In such a case, the PHY will be powered down during the phy_stop()
call, but will fail to be powered up in phy_start().
This patch fixes this scenario.
Signed-off-by: Jiancheng Xue <xuejiancheng@huawei.com>
Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch adds UPDATE_QP SRIOV wrapper support.
The mechanism is a general one, but currently only source MAC
index changes are allowed for VFs.
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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I've missed to add a NULL entry to the bond_intmax_tbl when I introduced
it with the conversion of arp_interval so add it now.
CC: Jay Vosburgh <j.vosburgh@gmail.com>
CC: Veaceslav Falico <vfalico@gmail.com>
CC: Andy Gospodarek <andy@greyhouse.net>
Fixes: 7bdb04ed0dbf ("bonding: convert arp_interval to use the new option API")
Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Acked-by: Veaceslav Falico <vfalico@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The original series for reintroducing grant mapping for netback had a patch [1]
to handle receiving of packets from an another VIF. Grant copy on the receiving
side needs the grant ref of the page to set up the op.
The original patch assumed (wrongly) that the frags array haven't changed. In
the case reported by Sander, the sending guest sent a packet where the linear
buffer and the first frag were under PKT_PROT_LEN (=128) bytes.
xenvif_tx_submit() then pulled up the linear area to 128 bytes, and ditched the
first frag. The receiving side had an off-by-one problem when gathered the grant
refs.
This patch fixes that by checking whether the actual frag's page pointer is the
same as the page in the original frag list. It can handle any kind of changes on
the original frags array, like:
- removing granted frags from the array at any point
- adding local pages to the frags list anywhere
- reordering the frags
It's optimized to the most common case, when there is 1:1 relation between the
frags and the list, plus works optimal when frags are removed from the end or
the beginning.
[1]: 3e2234: xen-netback: Handle foreign mapped pages on the guest RX path
Reported-by: Sander Eikelenboom <linux@eikelenboom.it>
Signed-off-by: Zoltan Kiss <zoltan.kiss@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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After the call to phy_init_hw failed in phy_attach_direct, phy_detach is called
to detach the phy device from its network device. If the attached driver is a
generic phy driver, this also detaches the driver. Subsequently phy_resume
is called, which assumes without checking that a driver is attached to the
device. This will result in a crash such as
Unable to handle kernel paging request for data at address 0xffffffffffffff90
Faulting instruction address: 0xc0000000003a0e18
Oops: Kernel access of bad area, sig: 11 [#1]
...
NIP [c0000000003a0e18] .phy_attach_direct+0x68/0x17c
LR [c0000000003a0e6c] .phy_attach_direct+0xbc/0x17c
Call Trace:
[c0000003fc0475d0] [c0000000003a0e6c] .phy_attach_direct+0xbc/0x17c (unreliable)
[c0000003fc047670] [c0000000003a0ff8] .phy_connect_direct+0x28/0x98
[c0000003fc047700] [c0000000003f0074] .of_phy_connect+0x4c/0xa4
Only call phy_resume if phy_init_hw was successful.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch disables multicast hash filtering if present in the hardware
and uses promiscuous mode instead until the problem with multicast
filtering has been debugged, integrated and tested.
Signed-off-by: Vince Bridgers <vbridgers2013@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch fixes the many sparse errors and warnings contained in the
initial submission of the Altera Triple Speed Ethernet driver, and a
few minor cppcheck warnings. Changes are tested on ARM and NIOS2
example designs, and compile tested against multiple architectures.
Typical issues addressed were as follows:
altera_tse_ethtool.c:136:19: warning: incorrect type in argument
1 (different address spaces)
altera_tse_ethtool.c:136:19: expected void const volatile
[noderef] <asn:2>*addr
altera_tse_ethtool.c:136:19: got unsigned int *<noident>
...
altera_sgdma.c:129:31: warning: cast removes address space of
expression
Signed-off-by: Vince Bridgers <vbridgers2013@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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On some BE3 FW versions, after a HW reset, interrupts will remain disabled
for each function. So, explicitly enable the interrupts in the eeh_resume
handler, else after an eeh recovery interrupts wouldn't work.
Signed-off-by: Kalesh AP <kalesh.purayil@emulex.com>
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In my recent fix (76a691d0a: fix dma unmap warning), Ben Hutchings noted that my
loop count was incorrect. Where j started at startidx, it should have started
at zero, and gone on for count entries, not to endidx. Additionally, a DMA
resource exhaustion should drop the frame and (for now), return
NETDEV_TX_OK, not NETEV_TX_BUSY. This patch fixes both of those issues:
Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
CC: Ben Hutchings <ben@decadent.org.uk>
CC: "David S. Miller" <davem@davemloft.net>
CC: Guo-Fu Tseng <cooldavid@cooldavid.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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If the sfc driver is in legacy interrupt mode (either explicitly by
using interrupt_mode module param or by falling back to it) it will
hit a warning at kernel/irq/manage.c because it will try to free an irq
which wasn't allocated by it in the first place because the MSI(X) irqs are
zero and it'll try to free them unconditionally. So fix it by checking if
we're in legacy mode and freeing the appropriate irqs.
CC: Zenghui Shi <zshi@redhat.com>
CC: Ben Hutchings <ben@decadent.org.uk>
CC: <linux-net-drivers@solarflare.com>
CC: Shradha Shah <sshah@solarflare.com>
CC: David S. Miller <davem@davemloft.net>
Fixes: 1899c111a535 ("sfc: Fix IRQ cleanup in case of a probe failure")
Reported-by: Zenghui Shi <zshi@redhat.com>
Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Acked-by: Shradha Shah <sshah@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Clearing the IFF_ALLMULTI flag on a down interface could cause an allmulti
overflow on the underlying interface.
Attempting the set IFF_ALLMULTI on the underlying interface would cause an
error and the log message:
"allmulti touches root, set allmulti failed."
Signed-off-by: Peter Christensen <pch@ordbogen.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The sk_unattached_filter_create() API is used by BPF filters that
are not directly attached or related to sockets, and are used in
team, ptp, xt_bpf, cls_bpf, etc. As such all users do their own
internal managment of obtaining filter blocks and thus already
have them in kernel memory and set up before calling into
sk_unattached_filter_create(). As a result, due to __user annotation
in sock_fprog, sparse triggers false positives (incorrect type in
assignment [different address space]) when filters are set up before
passing them to sk_unattached_filter_create(). Therefore, let
sk_unattached_filter_create() API use sock_fprog_kern to overcome
this issue.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-next
Jeff Kirsher says:
====================
Intel Wired LAN Driver Updates
This series contains updates to igb, igbvf, ixgbe, i40e and i40evf.
Jacob provides eight patches to cleanup the ixgbe driver to resolve various
checkpatch.pl warnings/errors as well as minor coding style issues.
Stephen Hemminger and I provide simple cleanups of void functions which
had useless return statements at the end of the function which are not
needed.
v2: Dropped Emil's patch "ixgbe: fix the detection of SFP+ capable interfaces"
while I wait for his updated patch to be validated.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Remove cases where useless bare return is left at end of function.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Remove useless return statements for void functions which do not need
it.
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
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This semicomplex switch-case has various fallthrough portions, that were
not indicated by a /* fallthrough */ comment.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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This patch cleans up a checkpatch.pl style warning in the ixgbe code.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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The debugfs_remove_recursive function is NULL-safe, so we don't need to
check here ourselves.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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