| Commit message (Collapse) | Author | Age | Files | Lines |
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In the major update of the rtlwifi-family of drivers, there was an editing
mistake. Unfortunately, this particular error leads to memory corruption that
silently leads to failure of the system. This patch is one of three needed to
fix the kernel regression reported at https://bugzilla.kernel.org/show_bug.cgi?id=88951.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Reported-by: Catalin Iacob <iacobcatalin@gmail.com>
Tested-by: Catalin Iacob <iacobcatalin@gmail.com>
Cc: Catalin Iacob <iacobcatalin@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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The existing order of steps when starting the PCI devices works for
2.4G devices, but fails to initialize the 5G section of the RTL8821AE
hardware.
This patch is needed to fix the regression reported in Bug #88811
(https://bugzilla.kernel.org/show_bug.cgi?id=88811).
Reported-by: Valerio Passini <valerio.passini@unicam.it>
Tested-by: Valerio Passini <valerio.passini@unicam.it>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Valerio Passini <valerio.passini@unicam.it>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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The changes associated with moving this driver from staging to the regular
tree missed one section setting the allowable rates for the 5GHz band.
This patch is needed to fix the regression reported in Bug #88811
(https://bugzilla.kernel.org/show_bug.cgi?id=88811).
Reported-by: Valerio Passini <valerio.passini@unicam.it>
Tested-by: Valerio Passini <valerio.passini@unicam.it>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Valerio Passini <valerio.passini@unicam.it>
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
Emmanuel Grumbach <egrumbach@gmail.com> says:
"Not all the firmware know how to handle the HOT_SPOT_CMD.
Make sure that the firmware will know this command before
sending it. This avoids a firmware crash."
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Older firmwares do not provide support for the HOT_SPOT_CMD command.
Check for the appropriate TLV flag that declares hotspot support in
the firmware to prevent a firmware assertion failure that can be
triggered from the userspace,
Cc: stable@vger.kernel.org [3.17+]
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
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This is a specific implementation, <asm/unaligned.h> is the
multiplexer that has the arch-specific knowledge of which
of the implementations needs to be used, so include that.
This issue was revealed by kbuild testing
when <asm/unaligned.h> was added in <linux/ieee80211.h>
resulting in redefinition of get_unaligned_be16 (and
probably others).
Cc: stable@vger.kernel.org # v3.17
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.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/jberg/mac80211
Johannes Berg <johannes@sipsolutions.net> says:
"Here's another last minute fix, for minstrel HT crashing
depending on the value of some uninitialised stack."
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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The commit 5935839ad73583781b8bbe8d91412f6826e218a4
"mac80211: improve minstrel_ht rate sorting by throughput & probability"
introduced a crash on rate sorting that occurs when the rate added to
the sorting array is faster than all the previous rates. Due to an
off-by-one error, it reads the rate index from tp_list[-1], which
contains uninitialized stack garbage, and then uses the resulting index
for accessing the group rate stats, leading to a crash if the garbage
value is big enough.
Cc: Thomas Huehn <thomas@net.t-labs.tu-berlin.de>
Reported-by: Jouni Malinen <j@w1.fi>
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Return value of irq_of_parse_and_map() is unsigned int, with 0
indicating failure, so testing for negative result never works.
Signed-off-by: Dmitry Torokhov <dtor@chromium.org>
Cc: stable@vger.kernel.org # v3.17
Acked-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Kill the submitted URB in brcmf_usb_dl_cmd if the request timed out. This
assures the URB is never submitted twice. It also prevents a possible
use-after-free of the URB transfer buffer if a timeout occurs.
Signed-off-by: Mathy Vanhoef <vanhoefm@gmail.com>
Acked-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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The commit that went into 3.17:
ath9k: Summarize hw state per channel context
Group and set hw state (opmode, primary_sta, beacon conf) per
channel context instead of whole list of vifs. This would allow
each channel context to run in different mode (STA/AP).
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
broke multi-vif configuration due to not properly calculating
the bssid mask.
The test case that caught this was:
create wlan0 and sta0-4 (6 total), not sure how much that matters.
associate all 6 (works fine)
disconnect 5 of them, leaving sta0 up
Start trying to bring up the other 5 one at a time. It will
fail, with iw events looking like this (in these logs, several
sta are trying to come up, but symptom is the same with just one)
The patch causing the regression made quite a few changes, but
the part I think caused this particular problem was not
recalculating the bssid mask when adding and removing interfaces.
Re-adding those calls fixes my test case. Fix bad comment
as well.
Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Based on the reference clock, which could be 25MHz or 40MHz,
AR_RTC_DERIVED_CLK is programmed differently for AR9340 and AR9550.
But, when a chip reset is done, processing the initvals
sets the register back to the default value.
Fix this by moving the code in ath9k_hw_init_pll() to
ar9003_hw_override_ini(). Also, do this override for AR9531.
Cc: stable@vger.kernel.org
Signed-off-by: Miaoqing Pan <miaoqing@qca.qualcomm.com>
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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The function chandef_to_chanspec() failed when converting a
chandef with bandwidth set to NL80211_CHAN_WIDTH_20_NOHT. This
was reported by user running the device in AP mode.
------------[ cut here ]------------
WARNING: CPU: 0 PID: 304 at
drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c:381
chandef_to_chanspec.isra.11+0x158/0x184()
Modules linked in:
CPU: 0 PID: 304 Comm: hostapd Not tainted 3.16.0-rc7-abb+g64aa90f #8
[<c0014bb4>] (unwind_backtrace) from [<c0012314>] (show_stack+0x10/0x14)
[<c0012314>] (show_stack) from [<c001d3f8>] (warn_slowpath_common+0x6c/0x8c)
[<c001d3f8>] (warn_slowpath_common) from [<c001d4b4>] (warn_slowpath_null+0x1c/0x24)
[<c001d4b4>] (warn_slowpath_null) from [<c03449a4>] (chandef_to_chanspec.isra.11+0x158/0x184)
[<c03449a4>] (chandef_to_chanspec.isra.11) from [<c0348e00>] (brcmf_cfg80211_start_ap+0x1e4/0x614)
[<c0348e00>] (brcmf_cfg80211_start_ap) from [<c04d1468>] (nl80211_start_ap+0x288/0x414)
[<c04d1468>] (nl80211_start_ap) from [<c043d144>] (genl_rcv_msg+0x21c/0x38c)
[<c043d144>] (genl_rcv_msg) from [<c043c740>] (netlink_rcv_skb+0xac/0xc0)
[<c043c740>] (netlink_rcv_skb) from [<c043cf14>] (genl_rcv+0x20/0x34)
[<c043cf14>] (genl_rcv) from [<c043c0a0>] (netlink_unicast+0x150/0x20c)
[<c043c0a0>] (netlink_unicast) from [<c043c4b8>] (netlink_sendmsg+0x2b8/0x398)
[<c043c4b8>] (netlink_sendmsg) from [<c04066a4>] (sock_sendmsg+0x84/0xa8)
[<c04066a4>] (sock_sendmsg) from [<c0407c5c>] (___sys_sendmsg.part.29+0x268/0x278)
[<c0407c5c>] (___sys_sendmsg.part.29) from [<c0408bdc>] (__sys_sendmsg+0x4c/0x7c)
[<c0408bdc>] (__sys_sendmsg) from [<c000ec60>] (ret_fast_syscall+0x0/0x44)
---[ end trace 965ee2158c9905a2 ]---
Cc: stable@vger.kernel.org # v3.17
Reported-by: Pontus Fuchs <pontusf@broadcom.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Daniel (Deognyoun) Kim <dekim@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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RT2800 and newer hardware require padding between header and payload if
header length is not multiple of 4.
For historical reasons we also align payload to to 4 bytes boundary, but
such alignment is not needed on modern H/W.
Patch fixes skb_under_panic problems reported from time to time:
https://bugzilla.kernel.org/show_bug.cgi?id=84911
https://bugzilla.kernel.org/show_bug.cgi?id=72471
http://marc.info/?l=linux-wireless&m=139108549530402&w=2
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1087591
Panic happened because we eat 4 bytes of skb headroom on each
(re)transmission when sending frame without the payload and the header
length not being multiple of 4 (i.e. QoS header has 26 bytes). On such
case because paylad_aling=2 is bigger than header_align=0 we increase
header_align by 4 bytes. To prevent that we could change the check to:
if (payload_length && payload_align > header_align)
header_align += 4;
but not aligning payload at all is more effective and alignment is not
really needed by H/W (that has been tested on OpenWrt project for few
years now).
Reported-and-tested-by: Antti S. Lankila <alankila@bel.fi>
Debugged-by: Antti S. Lankila <alankila@bel.fi>
Reported-by: Henrik Asp <solenskiner@gmail.com>
Originally-From: Helmut Schaa <helmut.schaa@googlemail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.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
Emmanuel Grumbach <egrumbach@gmail.com> says:
"Two fixes here - we weren't updating mac80211 if a scan
was cut short by RFKILL which confused cfg80211. As a
result, the latter wouldn't allow to run another scan.
Liad fixes a small bug in the firmware dump."
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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The length counting previously done had an error in it, causing
the length down the data dumping function to be shorter than it
should be, causing the end of the data to get truncated off and
lost.
Cc: <stable@vger.kernel.org> [3.17+]
Fixes: 67c65f2cf710 ("iwlwifi: dump periphery registers to fw-error-dump")
Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
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This code existed but not for all the different FW APIs
we support.
Fix this.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
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phy_read and phy_write are not set for every phy any more sine this:
commit d342b95dd735014a590f9051b1ba227eb54ca8f6
Author: Rafał Miłecki <zajec5@gmail.com>
Date: Thu Jul 31 21:59:43 2014 +0200
b43: don't duplicate common PHY read/write ops
b43_phy_copy() accesses phy_read and phy_write directly and will fail
with some phys. This patch fixes the regression by using the
b43_phy_read() and b43_phy_write() functions which should be used for
read and write access.
This should fix this bug report:
https://bugzilla.kernel.org/show_bug.cgi?id=87731
Reported-by: Volker Kempter <v.kempter@pe.tu-clausthal.de>
Tested-by: Volker Kempter <v.kempter@pe.tu-clausthal.de>
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Changes in the vendor driver were added to rtlwifi, but some updates
to rtl8192se were missed, and the driver could neither scan nor connect.
There are other changes that will enhance performance, but this minimal
set fix the basic functionality.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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There are typos in the handling of the descriptor pointers where the wrong
descriptor is referenced. There is also an error in which the pointer is
incremented twice.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Device RTL8192EE uses a new form of trx flow. This fix sets up the descriptors
correctly.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211
Johannes Berg <johannes@sipsolutions.net> says:
"This has just one fix, for an issue with the CCMP decryption
that can cause a kernel crash. I'm not sure it's remotely
exploitable, but it's an important fix nonetheless."
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Commit 7ec7c4a9a686c608315739ab6a2b0527a240883c (mac80211: port CCMP to
cryptoapi's CCM driver) introduced a regression when decrypting empty
packets (data_len == 0). This will lead to backtraces like:
(scatterwalk_start) from [<c01312f4>] (scatterwalk_map_and_copy+0x2c/0xa8)
(scatterwalk_map_and_copy) from [<c013a5a0>] (crypto_ccm_decrypt+0x7c/0x25c)
(crypto_ccm_decrypt) from [<c032886c>] (ieee80211_aes_ccm_decrypt+0x160/0x170)
(ieee80211_aes_ccm_decrypt) from [<c031c628>] (ieee80211_crypto_ccmp_decrypt+0x1ac/0x238)
(ieee80211_crypto_ccmp_decrypt) from [<c032ef28>] (ieee80211_rx_handlers+0x870/0x1d24)
(ieee80211_rx_handlers) from [<c0330c7c>] (ieee80211_prepare_and_rx_handle+0x8a0/0x91c)
(ieee80211_prepare_and_rx_handle) from [<c0331260>] (ieee80211_rx+0x568/0x730)
(ieee80211_rx) from [<c01d3054>] (__carl9170_rx+0x94c/0xa20)
(__carl9170_rx) from [<c01d3324>] (carl9170_rx_stream+0x1fc/0x320)
(carl9170_rx_stream) from [<c01cbccc>] (carl9170_usb_tasklet+0x80/0xc8)
(carl9170_usb_tasklet) from [<c00199dc>] (tasklet_hi_action+0x88/0xcc)
(tasklet_hi_action) from [<c00193c8>] (__do_softirq+0xcc/0x200)
(__do_softirq) from [<c0019734>] (irq_exit+0x80/0xe0)
(irq_exit) from [<c0009c10>] (handle_IRQ+0x64/0x80)
(handle_IRQ) from [<c000c3a0>] (__irq_svc+0x40/0x4c)
(__irq_svc) from [<c0009d44>] (arch_cpu_idle+0x2c/0x34)
Such packets can appear for example when using the carl9170 wireless driver
because hardware sometimes generates garbage when the internal FIFO overruns.
This patch adds an additional length check.
Cc: stable@vger.kernel.org
Fixes: 7ec7c4a9a686 ("mac80211: port CCMP to cryptoapi's CCM driver")
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Ronald Wahl <ronald.wahl@raritan.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211
Johannes Berg <johannes@sipsolutions.net> says:
"This contains another small set of fixes for 3.18, these are all
over the place and most of the bugs are old, one even dates back
to the original mac80211 we merged into the kernel."
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Upon receiving the last fragment, all but the first fragment
are freed, but the multicast check for statistics at the end
of the function refers to the current skb (the last fragment)
causing a use-after-free bug.
Since multicast frames cannot be fragmented and we check for
this early in the function, just modify that check to also
do the accounting to fix the issue.
Cc: stable@vger.kernel.org
Reported-by: Yosef Khyal <yosefx.khyal@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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When an interface is deleted, an ongoing hardware scan is canceled and
the driver must abort the scan, at the very least reporting completion
while the interface is removed.
However, if it scheduled the work that might only run after everything
is said and done, which leads to cfg80211 warning that the scan isn't
reported as finished yet; this is no fault of the driver, it already
did, but mac80211 hasn't processed it.
To fix this situation, flush the delayed work when the interface being
removed is the one that was executing the scan.
Cc: stable@vger.kernel.org
Reported-by: Sujith Manoharan <sujith@msujith.org>
Tested-by: Sujith Manoharan <sujith@msujith.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Due to the time it takes to process the beacon that started the CSA
process, we may be late for the switch if we try to reach exactly
beacon 0. To avoid that, use count - 1 when calculating the switch time.
Cc: stable@vger.kernel.org
Reported-by: Jouni Malinen <j@w1.fi>
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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If we are switching from an HT40+ to an HT40- channel (or vice-versa),
we need the secondary channel offset IE to specify what is the
post-CSA offset to be used. This applies both to beacons and to probe
responses.
In ieee80211_parse_ch_switch_ie() we were ignoring this IE from
beacons and using the *current* HT information IE instead. This was
causing us to use the same offset as before the switch.
Fix that by using the secondary channel offset IE also for beacons and
don't ever use the pre-switch offset. Additionally, remove the
"beacon" argument from ieee80211_parse_ch_switch_ie(), since it's not
needed anymore.
Cc: stable@vger.kernel.org
Reported-by: Jouni Malinen <j@w1.fi>
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Userspace can add keys to an AP mode interface before start_ap has been
called. If there have been no calls to start_ap/stop_ap in the mean
time, the keys will still be around when the interface is brought down.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
[adjust comments, fix AP_VLAN case]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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The driver is not released when ieee80211_register_hw fails in
mac80211_hwsim_create_radio, leading to the access to the unregistered (and
possibly freed) device in platform_driver_unregister:
[ 0.447547] mac80211_hwsim: ieee80211_register_hw failed (-2)
[ 0.448292] ------------[ cut here ]------------
[ 0.448854] WARNING: CPU: 0 PID: 1 at ../include/linux/kref.h:47 kobject_get+0x33/0x50()
[ 0.449839] CPU: 0 PID: 1 Comm: swapper Not tainted 3.17.0-00001-gdd46990-dirty #2
[ 0.450813] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 0.451512] 00000000 00000000 78025e38 7967c6c6 78025e68 7905e09b 7988b480 00000000
[ 0.452579] 00000001 79887d62 0000002f 79170bb3 79170bb3 78397008 79ac9d74 00000001
[ 0.453614] 78025e78 7905e15d 00000009 00000000 78025e84 79170bb3 78397000 78025e8c
[ 0.454632] Call Trace:
[ 0.454921] [<7967c6c6>] dump_stack+0x16/0x18
[ 0.455453] [<7905e09b>] warn_slowpath_common+0x6b/0x90
[ 0.456067] [<79170bb3>] ? kobject_get+0x33/0x50
[ 0.456612] [<79170bb3>] ? kobject_get+0x33/0x50
[ 0.457155] [<7905e15d>] warn_slowpath_null+0x1d/0x20
[ 0.457748] [<79170bb3>] kobject_get+0x33/0x50
[ 0.458274] [<7925824f>] get_device+0xf/0x20
[ 0.458779] [<7925b5cd>] driver_detach+0x3d/0xa0
[ 0.459331] [<7925a3ff>] bus_remove_driver+0x8f/0xb0
[ 0.459927] [<7925bf80>] ? class_unregister+0x40/0x80
[ 0.460660] [<7925bad7>] driver_unregister+0x47/0x50
[ 0.461248] [<7925c033>] ? class_destroy+0x13/0x20
[ 0.461824] [<7925d07b>] platform_driver_unregister+0xb/0x10
[ 0.462507] [<79b51ba0>] init_mac80211_hwsim+0x3e8/0x3f9
[ 0.463161] [<79b30c58>] do_one_initcall+0x106/0x1a9
[ 0.463758] [<79b517b8>] ? if_spi_init_module+0xac/0xac
[ 0.464393] [<79b517b8>] ? if_spi_init_module+0xac/0xac
[ 0.465001] [<79071935>] ? parse_args+0x2f5/0x480
[ 0.465569] [<7906b41e>] ? __usermodehelper_set_disable_depth+0x3e/0x50
[ 0.466345] [<79b30dd9>] kernel_init_freeable+0xde/0x17d
[ 0.466972] [<79b304d6>] ? do_early_param+0x7a/0x7a
[ 0.467546] [<79677b1b>] kernel_init+0xb/0xe0
[ 0.468072] [<79075f42>] ? schedule_tail+0x12/0x40
[ 0.468658] [<79686580>] ret_from_kernel_thread+0x20/0x30
[ 0.469303] [<79677b10>] ? rest_init+0xc0/0xc0
[ 0.469829] ---[ end trace ad8ac403ff8aef5c ]---
[ 0.470509] ------------[ cut here ]------------
[ 0.471047] WARNING: CPU: 0 PID: 1 at ../kernel/locking/lockdep.c:3161 __lock_acquire.isra.22+0x7aa/0xb00()
[ 0.472163] DEBUG_LOCKS_WARN_ON(id >= MAX_LOCKDEP_KEYS)
[ 0.472774] CPU: 0 PID: 1 Comm: swapper Tainted: G W 3.17.0-00001-gdd46990-dirty #2
[ 0.473815] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 0.474492] 78025de0 78025de0 78025da0 7967c6c6 78025dd0 7905e09b 79888931 78025dfc
[ 0.475515] 00000001 79888a93 00000c59 7907f33a 7907f33a 78028000 fffe9d09 00000000
[ 0.476519] 78025de8 7905e10e 00000009 78025de0 79888931 78025dfc 78025e24 7907f33a
[ 0.477523] Call Trace:
[ 0.477821] [<7967c6c6>] dump_stack+0x16/0x18
[ 0.478352] [<7905e09b>] warn_slowpath_common+0x6b/0x90
[ 0.478976] [<7907f33a>] ? __lock_acquire.isra.22+0x7aa/0xb00
[ 0.479658] [<7907f33a>] ? __lock_acquire.isra.22+0x7aa/0xb00
[ 0.480417] [<7905e10e>] warn_slowpath_fmt+0x2e/0x30
[ 0.480479] [<7907f33a>] __lock_acquire.isra.22+0x7aa/0xb00
[ 0.480479] [<79078aa5>] ? sched_clock_cpu+0xb5/0xf0
[ 0.480479] [<7907fd06>] lock_acquire+0x56/0x70
[ 0.480479] [<7925b5e8>] ? driver_detach+0x58/0xa0
[ 0.480479] [<79682d11>] mutex_lock_nested+0x61/0x2a0
[ 0.480479] [<7925b5e8>] ? driver_detach+0x58/0xa0
[ 0.480479] [<7925b5e8>] ? driver_detach+0x58/0xa0
[ 0.480479] [<7925b5e8>] driver_detach+0x58/0xa0
[ 0.480479] [<7925a3ff>] bus_remove_driver+0x8f/0xb0
[ 0.480479] [<7925bf80>] ? class_unregister+0x40/0x80
[ 0.480479] [<7925bad7>] driver_unregister+0x47/0x50
[ 0.480479] [<7925c033>] ? class_destroy+0x13/0x20
[ 0.480479] [<7925d07b>] platform_driver_unregister+0xb/0x10
[ 0.480479] [<79b51ba0>] init_mac80211_hwsim+0x3e8/0x3f9
[ 0.480479] [<79b30c58>] do_one_initcall+0x106/0x1a9
[ 0.480479] [<79b517b8>] ? if_spi_init_module+0xac/0xac
[ 0.480479] [<79b517b8>] ? if_spi_init_module+0xac/0xac
[ 0.480479] [<79071935>] ? parse_args+0x2f5/0x480
[ 0.480479] [<7906b41e>] ? __usermodehelper_set_disable_depth+0x3e/0x50
[ 0.480479] [<79b30dd9>] kernel_init_freeable+0xde/0x17d
[ 0.480479] [<79b304d6>] ? do_early_param+0x7a/0x7a
[ 0.480479] [<79677b1b>] kernel_init+0xb/0xe0
[ 0.480479] [<79075f42>] ? schedule_tail+0x12/0x40
[ 0.480479] [<79686580>] ret_from_kernel_thread+0x20/0x30
[ 0.480479] [<79677b10>] ? rest_init+0xc0/0xc0
[ 0.480479] ---[ end trace ad8ac403ff8aef5d ]---
[ 0.495478] BUG: unable to handle kernel paging request at 00200200
[ 0.496257] IP: [<79682de5>] mutex_lock_nested+0x135/0x2a0
[ 0.496923] *pde = 00000000
[ 0.497290] Oops: 0002 [#1]
[ 0.497653] CPU: 0 PID: 1 Comm: swapper Tainted: G W 3.17.0-00001-gdd46990-dirty #2
[ 0.498659] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 0.499321] task: 78028000 ti: 78024000 task.ti: 78024000
[ 0.499955] EIP: 0060:[<79682de5>] EFLAGS: 00010097 CPU: 0
[ 0.500620] EIP is at mutex_lock_nested+0x135/0x2a0
[ 0.501145] EAX: 00200200 EBX: 78397434 ECX: 78397460 EDX: 78025e70
[ 0.501816] ESI: 00000246 EDI: 78028000 EBP: 78025e8c ESP: 78025e54
[ 0.502497] DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068
[ 0.503076] CR0: 8005003b CR2: 00200200 CR3: 01b9d000 CR4: 00000690
[ 0.503773] Stack:
[ 0.503998] 00000000 00000001 00000000 7925b5e8 78397460 7925b5e8 78397474 78397460
[ 0.504944] 00200200 11111111 78025e70 78397000 79ac9d74 00000001 78025ea0 7925b5e8
[ 0.505451] 79ac9d74 fffffffe 00000001 78025ebc 7925a3ff 7a251398 78025ec8 7925bf80
[ 0.505451] Call Trace:
[ 0.505451] [<7925b5e8>] ? driver_detach+0x58/0xa0
[ 0.505451] [<7925b5e8>] ? driver_detach+0x58/0xa0
[ 0.505451] [<7925b5e8>] driver_detach+0x58/0xa0
[ 0.505451] [<7925a3ff>] bus_remove_driver+0x8f/0xb0
[ 0.505451] [<7925bf80>] ? class_unregister+0x40/0x80
[ 0.505451] [<7925bad7>] driver_unregister+0x47/0x50
[ 0.505451] [<7925c033>] ? class_destroy+0x13/0x20
[ 0.505451] [<7925d07b>] platform_driver_unregister+0xb/0x10
[ 0.505451] [<79b51ba0>] init_mac80211_hwsim+0x3e8/0x3f9
[ 0.505451] [<79b30c58>] do_one_initcall+0x106/0x1a9
[ 0.505451] [<79b517b8>] ? if_spi_init_module+0xac/0xac
[ 0.505451] [<79b517b8>] ? if_spi_init_module+0xac/0xac
[ 0.505451] [<79071935>] ? parse_args+0x2f5/0x480
[ 0.505451] [<7906b41e>] ? __usermodehelper_set_disable_depth+0x3e/0x50
[ 0.505451] [<79b30dd9>] kernel_init_freeable+0xde/0x17d
[ 0.505451] [<79b304d6>] ? do_early_param+0x7a/0x7a
[ 0.505451] [<79677b1b>] kernel_init+0xb/0xe0
[ 0.505451] [<79075f42>] ? schedule_tail+0x12/0x40
[ 0.505451] [<79686580>] ret_from_kernel_thread+0x20/0x30
[ 0.505451] [<79677b10>] ? rest_init+0xc0/0xc0
[ 0.505451] Code: 89 d8 e8 cf 9b 9f ff 8b 4f 04 8d 55 e4 89 d8 e8 72 9d 9f ff 8d 43 2c 89 c1 89 45 d8 8b 43 30 8d 55 e4 89 53 30 89 4d e4 89 45 e8 <89> 10 8b 55 dc 8b 45 e0 89 7d ec e8 db af 9f ff eb 11 90 31 c0
[ 0.505451] EIP: [<79682de5>] mutex_lock_nested+0x135/0x2a0 SS:ESP 0068:78025e54
[ 0.505451] CR2: 0000000000200200
[ 0.505451] ---[ end trace ad8ac403ff8aef5e ]---
[ 0.505451] Kernel panic - not syncing: Fatal exception
Fixes: 9ea927748ced ("mac80211_hwsim: Register and bind to driver")
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Junjie Mao <eternal.n08@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-fixes
Emmanuel Grumbach <egrumbach@gmail.com> says:
"I fix here two issues that are related to the firmware
loading flow. A user reported that he couldn't load the
driver because the rfkill line was pulled up while we
were running the calibrations. This was happening while
booting the system: systemd was restoring the "disable
wifi settings" and that raised an RFKILL interrupt during
the calibration. Our driver didn't handle that properly
and this is now fixed."
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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If the RFkill interrupt fires while we calibrate, it would
make the firmware fail and the driver wasn't able to recover.
Change the flow so that the driver will kill the firmware
in that case.
Since we have now two flows that are calling
trans_stop_device (the RFkill interrupt and the
op_mode_mvm_start function) - we need to better sync this.
Use the STATUS_DEVICE_ENABLED in the pcie transport in an
atomic way to achieve this.
This fixes: https://bugzilla.kernel.org/show_bug.cgi?id=86231
CC: <stable@vger.kernel.org> [3.10+]
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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mvm->cur_ucode wasn't set before we actually load the
firmware. This caused issues when we boot in RFKILL since
we get an RFKILL interrupt upon boot even before we load
any firmware.
This leads to issues since iwl_mvm_set_hw_rfkill_state
(the RFKILL interrupts handler in mvm) relies on this
variable.
Fix this.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
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An error in the code makes the allocated space for firmware to be too
small.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Murilo Opsfelder Araujo <mopsfelder@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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The new version of rtlwifi needs code in rtl92ce_get_desc() that returns
the buffer address for read operations.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Murilo Opsfelder Araujo <mopsfelder@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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The new version of rtlwifi needs code in rtl92se_get_desc() that returns
the buffer address for read operations.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Murilo Opsfelder Araujo <mopsfelder@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Driver rtlwifi has been modified to call ieee80211_register_hw()
from the probe routine; however, the existing call in the callback
routine for deferred firmware loading was not removed.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Murilo Opsfelder Araujo <mopsfelder@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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get_btc_status
The recent changes in checking for Bluetooth status added some callbacks to code
in rtlwifi. To make certain that all callbacks are defined, a dummy routine has been
added to rtlwifi, and the drivers that need to use it are modified.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Murilo Opsfelder Araujo <mopsfelder@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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During 11n RX reordering, if there is a hole in RX table,
driver will not send packets to kernel until the rxreorder
timer expires or the table is full.
However, currently driver always restarts rxreorder timer when
receiving a packet, which causes the timer hardly to expire.
So while connected with to 11n AP in a busy environment,
ping packets may get blocked for about 30 seconds.
This patch fixes this timer restarting by ensuring rxreorder timer
would only be restarted either timer is not set or start_win
has changed.
Signed-off-by: Chin-Ran Lo <crlo@marvell.com>
Signed-off-by: Plus Chen <pchen@marvell.com>
Signed-off-by: Marc Yang <yangyang@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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The right shift operation has higher precedence than the mask so we
left shift by "(i * 3)" and then immediately right shift by "(i * 3)"
then we mask. It should be left shift, mask, and then right shift.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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0x1b75 0xa200 AirLive WN-200USB wireless 11b/g/n dongle
References: https://bugs.debian.org/766802
Reported-by: Martin Mokrejs <mmokrejs@fold.natur.cuni.cz>
Cc: stable@vger.kernel.org
Signed-off-by: Cyril Brulebois <kibi@debian.org>
Acked-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211
Johannes Berg <johannes@sipsolutions.net> says:
"Here are a few fixes for the wireless stack: one fixes the
RTS rate, one for a debugfs file, one to return the correct
channel to userspace, a sanity check for a userspace value
and the remaining two are just documentation fixes."
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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ATM an HT rc_stats line is 106 chars.
Times 8(MCS_GROUP_RATES)*3(SS)*2(GI)*2(BW) + CCK(4), i.e. x100, this is
well above the current 8192 - sizeof(*ms) currently allocated.
Fix this by squeezing the output as follows (not that we're short on
memory but this also improves readability and range, the new format adds
one more digit to *ok/*cum and ok/cum):
- Before (HT) (106 ch):
type rate throughput ewma prob this prob retry this succ/attempt success attempts
CCK/LP 5.5M 0.0 0.0 0.0 0 0( 0) 0 0
HT20/LGI ABCDP MCS0 0.0 0.0 0.0 1 0( 0) 0 0
- After (75 ch):
type rate tpt eprob *prob ret *ok(*cum) ok( cum)
CCK/LP 5.5M 0.0 0.0 0.0 0 0( 0) 0( 0)
HT20/LGI ABCDP MCS0 0.0 0.0 0.0 1 0( 0) 0( 0)
- Align non-HT format Before (non-HT) (83 ch):
rate throughput ewma prob this prob this succ/attempt success attempts
ABCDP 6 0.0 0.0 0.0 0( 0) 0 0
54 0.0 0.0 0.0 0( 0) 0 0
- After (61 ch):
rate tpt eprob *prob *ok(*cum) ok( cum)
ABCDP 1 0.0 0.0 0.0 0( 0) 0( 0)
54 0.0 0.0 0.0 0( 0) 0( 0)
*This also adds dynamic checks for overflow, lowers the size of the
non-HT request (allowing > 30 entries) and replaces the buddy-rounded
allocations (s/sizeof(*ms) + 8192/8192).
Signed-off-by: Karl Beldan <karl.beldan@rivierawaves.com>
Acked-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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It affects non-(V)HT rates and can lead to selecting an rts_cts rate
that is not a basic rate or way superior to the reference rate (ATM
rates[0] used for the 1st attempt of the protected frame data).
E.g, assuming drivers register growing (bitrate) sorted tables of
ieee80211_rate-s, having :
- rates[0].idx == d'2 and basic_rates == b'10100
will select rts_cts idx b'10011 & ~d'(BIT(2)-1), i.e. 1, likewise
- rates[0].idx == d'2 and basic_rates == b'10001
will select rts_cts idx b'10000
The first is not a basic rate and the second is > rates[0].
Also, wrt severity of the addressed misbehavior, ATM we only have one
rts_cts_rate_idx rather than one per rate table entry, so this idx might
still point to bitrates > rates[1..MAX_RATES].
Fixes: 5253ffb8c9e1 ("mac80211: always pick a basic rate to tx RTS/CTS for pre-HT rates")
Cc: stable@vger.kernel.org
Signed-off-by: Karl Beldan <karl.beldan@rivierawaves.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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The nl80211 channel switch count attribute
(NL80211_ATTR_CH_SWITCH_COUNT) is specified as u32, but the
specification uses u8 for the counter. To make sure strange things
don't happen without informing the user, sanity check the value and
return -EINVAL if it doesn't fit in u8.
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Correct the kernel-doc, the parameter is called "blocked" not "state".
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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The chandef of the channel context a vif is using may be different
than the chandef of the vif itself. For instance, the bandwidth used
by the vif may be narrower than the one configured in the channel
context. To avoid confusion, return the vif's chandef in
ieee80211_cfg_get_channel() instead of the chandef of the channel
context.
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Forgot to add an entry to the struct description of sta_info.
Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-fixes
Emmanuel Grumbach <egrumbach@gmail.com> says:
"I revert here a patch that caused interoperability issues.
dvm gets a fix for a bug that was reported by many users.
Two minor fixes for BT Coex and platform power fix that helps
reducing latency when the PCIe link goes to low power states."
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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iwl_poll_bit may return a strictly positive value when the
poll doesn't match on the first try.
This was caught when WoWLAN started failing upon resume
even if the poll_bit actually succeeded.
Also change a wrong print. If we reach the end of
iwl_pcie_prepare_card_hw, it means that we couldn't
get the devices.
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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