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linux/net/mac80211
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Johannes Berg d8dec42b5c mac80211: keep BHs disabled while calling drv_tx_wake_queue() 
Drivers typically expect this, as it's the case for almost all cases
where this is called (i.e. from the TX path). Also, the code in mac80211
itself (if the driver calls ieee80211_tx_dequeue()) expects this as it
uses this_cpu_ptr() without additional protection.

This should fix various reports of the problem:
https://bugzilla.kernel.org/show_bug.cgi?id=204127
https://lore.kernel.org/linux-wireless/CAN5HydrWb3o_FE6A1XDnP1E+xS66d5kiEuhHfiGKkLNQokx13Q@mail.gmail.com/
https://lore.kernel.org/lkml/nycvar.YFH.7.76.1909111238470.473@cbobk.fhfr.pm/

Cc: stable@vger.kernel.org
Reported-and-tested-by: Jiri Kosina <jkosina@suse.cz>
Reported-by: Aaron Hill <aa1ronham@gmail.com>
Reported-by: Lukas Redlinger <rel+kernel@agilox.net>
Reported-by: Oleksii Shevchuk <alxchk@gmail.com>
Fixes: 21a5d4c3a4 ("mac80211: add stop/start logic for software TXQs")
Link: https://lore.kernel.org/r/1569928763-I3e8838c5ecad878e59d4a94eb069a90f6641461a@changeid
Reviewed-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-10-01 17:56:19 +02:00
..
aead_api.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
aead_api.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
aes_ccm.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
aes_cmac.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
aes_cmac.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
aes_gcm.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
aes_gmac.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
aes_gmac.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
agg-rx.c mac80211: add missing null return check from call to ieee80211_get_sband 2019-07-31 10:51:17 +02:00
agg-tx.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
cfg.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-09-15 14:17:27 +02:00
chan.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
debug.h
debugfs_key.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-06-22 08:59:24 -04:00
debugfs_key.h
debugfs_netdev.c mac80211: fix txq null pointer dereference 2019-10-01 17:56:19 +02:00
debugfs_netdev.h
debugfs_sta.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-06-22 08:59:24 -04:00
debugfs_sta.h
debugfs.c mac80211: AMPDU handling for rekeys with Extended Key ID 2019-07-26 13:29:10 +02:00
debugfs.h
driver-ops.c mac80211: don't warn about CW params when not using them 2019-07-20 21:40:32 +02:00
driver-ops.h mac80211: pass the vif to cancel_remain_on_channel 2019-07-26 13:08:28 +02:00
ethtool.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 432 2019-06-05 17:37:16 +02:00
fils_aead.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
fils_aead.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
he.c mac80211: fix possible NULL pointerderef in obss pd code 2019-08-21 10:58:32 +02:00
ht.c mac80211: add support for the ADDBA extension element 2019-07-29 16:40:22 +02:00
ibss.c mac80211: IBSS: send deauth when expiring inactive STAs 2019-09-11 09:33:29 +02:00
ieee80211_i.h mac80211: IBSS: send deauth when expiring inactive STAs 2019-09-11 09:33:29 +02:00
iface.c mac80211: allow drivers to set max MTU 2019-09-11 09:33:29 +02:00
Kconfig Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2019-07-08 20:57:08 -07:00
key.c mac80211: don't check if key is NULL in ieee80211_key_link() 2019-09-11 09:33:28 +02:00
key.h mac80211: clear crypto tx tailroom counter upon keys enable 2019-09-11 09:33:28 +02:00
led.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
led.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
main.c mac80211: allow drivers to set max MTU 2019-09-11 09:33:29 +02:00
Makefile mac80211: minstrel: merge with minstrel_ht, always enable VHT support 2018-10-11 16:01:01 +02:00
mesh_hwmp.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
mesh_pathtbl.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
mesh_plink.c mac80211: implement HE support for mesh 2019-07-26 16:14:12 +02:00
mesh_ps.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
mesh_sync.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
mesh.c mac80211: implement HE support for mesh 2019-07-26 16:14:12 +02:00
mesh.h mac80211: implement HE support for mesh 2019-07-26 16:14:12 +02:00
michael.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
michael.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
mlme.c mac80211: IBSS: send deauth when expiring inactive STAs 2019-09-11 09:33:29 +02:00
ocb.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
offchannel.c mac80211: pass the vif to cancel_remain_on_channel 2019-07-26 13:08:28 +02:00
pm.c
rate.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-06-22 08:59:24 -04:00
rate.h mac80211: remove unused and unneeded remove_sta_debugfs callback 2019-07-26 13:21:12 +02:00
rc80211_minstrel_debugfs.c mac80211: rc80211_minstrel: remove variance / stddev calculation 2018-10-11 16:01:05 +02:00
rc80211_minstrel_ht_debugfs.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
rc80211_minstrel_ht.c mac80211: minstrel_ht: fix infinite loop because supported is not being shifted 2019-08-22 21:58:18 +02:00
rc80211_minstrel_ht.h mac80211: minstrel_ht: improve rate probing for devices with static fallback 2019-08-21 11:10:13 +02:00
rc80211_minstrel.c mac80211: call rate_control_send_low() internally 2019-06-14 14:17:37 +02:00
rc80211_minstrel.h mac80211: minstrel_ht: improve rate probing for devices with static fallback 2019-08-21 11:10:13 +02:00
rx.c mac80211: Correctly set noencrypt for PAE frames 2019-08-29 16:40:00 +02:00
scan.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
spectmgmt.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
sta_info.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-09-15 14:17:27 +02:00
sta_info.h mac80211: add assoc-at support 2019-08-21 10:58:10 +02:00
status.c nl80211: Add support for EDMG channels 2019-08-21 11:07:35 +02:00
tdls.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-06-17 15:55:34 -07:00
tkip.c Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2019-07-08 20:57:08 -07:00
tkip.h Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2019-07-08 20:57:08 -07:00
trace_msg.h mac80211: Increase MAX_MSG_LEN 2019-03-29 11:20:36 +01:00
trace.c
trace.h mac80211: pass the vif to cancel_remain_on_channel 2019-07-26 13:08:28 +02:00
tx.c nl80211: add 6GHz band definition to enum nl80211_band 2019-08-21 10:50:20 +02:00
util.c mac80211: keep BHs disabled while calling drv_tx_wake_queue() 2019-10-01 17:56:19 +02:00
vht.c mac80211: vht: add support VHT EXT NSS BW in parsing VHT 2019-09-11 09:13:03 +02:00
wep.c Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2019-07-08 20:57:08 -07:00
wep.h Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2019-07-08 20:57:08 -07:00
wme.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
wme.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
wpa.c mac80211: add IEEE80211_KEY_FLAG_GENERATE_MMIE to ieee80211_key_flags 2019-07-26 16:14:12 +02:00
wpa.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00