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linux/drivers/net/wireless
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Emmanuel Grumbach d090f878b0 iwlwifi: pcie: disable BHs in iwl_pcie_txq_check_wrptrs 
This fixes:

=================================
[ INFO: inconsistent lock state ]
3.14.3+ #5 Tainted: G           O
---------------------------------
inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage.
swapper/3/0 [HC0[0]:SC1[3]:HE1:SE0] takes:
 (&(&txq->lock)->rlock){+.?...}, at: [<ffffffffa059803c>] iwl_pcie_enqueue_hcmd+0x12c/0x1000 [iwlwifi]
{SOFTIRQ-ON-W} state was registered at:
  [<ffffffff810d9071>] __lock_acquire+0x5f1/0x13b0
  [<ffffffff810d9ee0>] lock_acquire+0xb0/0x1f0
  [<ffffffff817ef80e>] _raw_spin_lock+0x3e/0x80
  [<ffffffffa0598f7a>] iwl_pcie_txq_check_wrptrs+0x6a/0xb0 [iwlwifi]
  [<ffffffffa0594b5a>] iwl_pcie_irq_handler+0xdba/0x2670 [iwlwifi]
  [<ffffffff810ef1e0>] irq_thread_fn+0x20/0x50
  [<ffffffff810ef77f>] irq_thread+0x11f/0x150
  [<ffffffff810a04f0>] kthread+0xf0/0x110
  [<ffffffff817fa4bc>] ret_from_fork+0x7c/0xb0
irq event stamp: 1142192
hardirqs last  enabled at (1142192): [<ffffffff817efb6c>] _raw_spin_unlock_irq+0x2c/0x40
hardirqs last disabled at (1142191): [<ffffffff817ef9ef>] _raw_spin_lock_irq+0x1f/0x80
softirqs last  enabled at (1142188): [<ffffffff81079082>] _local_bh_enable+0x22/0x50
softirqs last disabled at (1142189): [<ffffffff8107ad35>] irq_exit+0xe5/0xf0

other info that might help us debug this:
 Possible unsafe locking scenario:

       CPU0
       ----
  lock(&(&txq->lock)->rlock);
  <Interrupt>
    lock(&(&txq->lock)->rlock);

Fixes: ea68f46070c7 ("iwlwifi: pcie: clarify TX queue need_update handling")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-13 13:53:53 +03:00
..
ath
ath9k_hw: fix worse EVM for 11b rates
2014-04-30 12:13:16 -04:00
b43
b43: N-PHY: complete radio 0x2056 setup
2014-04-30 12:13:14 -04:00
b43legacy
net: Replace min macro with min_t
2014-03-03 15:35:54 -05:00
brcm80211
mac80211: add vif to flush call
2014-04-09 10:55:29 +02:00
cw1200
Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next
2014-04-30 12:04:27 -04:00
hostap
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
2014-03-04 13:05:12 -05:00
ipw2x00
net: Replace min macro with min_t
2014-03-03 15:35:54 -05:00
iwlegacy
iwlegacy: Convert /n to \n
2014-04-30 12:08:17 -04:00
iwlwifi
iwlwifi: pcie: disable BHs in iwl_pcie_txq_check_wrptrs
2014-05-13 13:53:53 +03:00
libertas
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2014-03-05 20:32:02 -05:00
libertas_tf
…
mwifiex
Revert "mwifiex: add firmware dump feature for PCIe"
2014-04-24 21:33:55 -04:00
orinoco
orinoco: replace function ieee80211_{dsss_chan_to_freq, freq_to_dsss_chan}
2014-02-28 14:12:36 -05:00
p54
mac80211: add vif to flush call
2014-04-09 10:55:29 +02:00
prism54
net: Replace min macro with min_t
2014-03-03 15:35:54 -05:00
rsi
rsi: Changing opcode for sta mode according to changes in firmware
2014-04-30 12:13:16 -04:00
rt2x00
Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next
2014-04-30 12:04:27 -04:00
rtl818x
rtl8180: be paranoid in stopping unused queues.
2014-04-22 15:06:27 -04:00
rtlwifi
rtlwifi: rtl8723be: disable MSI interrupts mode
2014-04-30 12:08:17 -04:00
ti
wlcore: fix usage of platform_device_add_data()
2014-04-30 12:08:17 -04:00
zd1211rw
zd1211rw: slight optimization of addr compare
2013-12-26 13:31:33 -05:00
adm8211.c
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem
2014-01-17 14:43:17 -05:00
adm8211.h
…
airo_cs.c
wireless: delete non-required instances of include <linux/init.h>
2014-01-03 15:37:01 -05:00
airo.c
airo: replace function ieee80211_{dsss_chan_to_freq, freq_to_dsss_chan}
2014-02-28 14:11:13 -05:00
airo.h
…
at76c50x-usb.c
Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next
2014-01-13 14:40:59 -05:00
at76c50x-usb.h
…
atmel_cs.c
wireless: delete non-required instances of include <linux/init.h>
2014-01-03 15:37:01 -05:00
atmel_pci.c
wireless: delete non-required instances of include <linux/init.h>
2014-01-03 15:37:01 -05:00
atmel.c
atmel: replace function ieee80211_{dsss_chan_to_freq, freq_to_dsss_chan}
2014-02-28 14:11:13 -05:00
atmel.h
…
Kconfig
rsi: Add RS9113 wireless driver
2014-03-17 13:51:52 -04:00
mac80211_hwsim.c
mac80211_hwsim: Advertise support for AP mode channel width changes
2014-04-28 18:11:59 +02:00
mac80211_hwsim.h
mac80211_hwsim: allow creation of single-channel radios with chanctx
2014-02-11 13:10:02 +01:00
Makefile
rsi: Add RS9113 wireless driver
2014-03-17 13:51:52 -04:00
mwl8k.c
mwl8k: mwl8k_update_survey can be static
2014-03-06 14:29:58 -05:00
ray_cs.c
ray_cs: replace del_timer by del_timer_sync
2014-04-22 15:06:28 -04:00
ray_cs.h
…
rayctl.h
…
rndis_wlan.c
rndis_wlan: replace function ieee80211_{dsss_chan_to_freq, freq_to_dsss_chan}
2014-02-28 14:12:36 -05:00
wl3501_cs.c
wl3501_cs: replace function ieee80211_{dsss_chan_to_freq, freq_to_dsss_chan}
2014-02-28 14:12:36 -05:00
wl3501.h
…
zd1201.c
zd1201: replace function ieee80211_{dsss_chan_to_freq, freq_to_dsss_chan}
2014-02-28 14:12:36 -05:00
zd1201.h
…