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42624d4913
linux/net/mac80211
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Yogesh Ashok Powar 42624d4913 mac80211: Purge A-MPDU TX queues before station destructions 
When a station leaves suddenly while ampdu traffic to that station is still
running, there is a possibility that the ampdu pending queues are not freed due
to a race condition leading to memory leaks. In '__sta_info_destroy' when we
attempt to destroy the ampdu sessions in 'ieee80211_sta_tear_down_BA_sessions',
the driver calls 'ieee80211_stop_tx_ba_cb_irqsafe' to delete the ampdu
structures (tid_tx) and splice the pending queues and this job gets queued in
sdata workqueue. However, the sta entry can get destroyed before the above work
gets scheduled and hence the race.

Purging the queues and freeing the tid_tx to avoid the leak. The better solution
would be to fix the race, but that can be taken up in a separate patch.

Signed-off-by: Nishant Sarmukadam <nishants@marvell.com>
Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-12-13 15:30:33 -05:00
..
aes_ccm.c mac80211: use AES_BLOCK_SIZE 2011-07-08 11:11:24 -04:00
aes_ccm.h mac80211: use AES_BLOCK_SIZE 2011-07-08 11:11:24 -04:00
aes_cmac.c mac80211: use AES_BLOCK_SIZE 2011-07-08 11:11:24 -04:00
aes_cmac.h mac80211: fix CMAC races 2011-07-08 11:11:20 -04:00
agg-rx.c mac80211: Add HT operation modes for IBSS 2011-12-06 16:05:25 -05:00
agg-tx.c mac80211: Purge A-MPDU TX queues before station destructions 2011-12-13 15:30:33 -05:00
cfg.c {nl,cfg,mac}80211: implement dot11MeshHWMPperrMinInterval 2011-11-28 14:44:06 -05:00
cfg.h
chan.c mac80211: fix channel type recalculation with HT and non-HT interfaces 2011-03-14 14:46:58 -04:00
debugfs_key.c mac80211: fix CMAC races 2011-07-08 11:11:20 -04:00
debugfs_key.h mac80211: support separate default keys 2010-12-13 15:23:29 -05:00
debugfs_netdev.c {nl,cfg,mac}80211: implement dot11MeshHWMPperrMinInterval 2011-11-28 14:44:06 -05:00
debugfs_netdev.h mac80211: reduce reliance on netdev 2009-12-21 18:38:52 -05:00
debugfs_sta.c Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless 2011-12-02 15:44:03 -05:00
debugfs_sta.h
debugfs.c mac80211: remove debugfs noack test 2011-11-28 14:34:15 -05:00
debugfs.h mac80211: refactor debugfs function generation code 2010-11-15 13:24:48 -05:00
driver-ops.h mac80211: do not pass AP VLAN vif pointers to drivers 2011-11-28 14:43:52 -05:00
driver-trace.c
driver-trace.h mac80211: remove tracing config symbol 2011-11-28 14:44:09 -05:00
event.c
ht.c mac80211: Remove WARN_ON in apply-ht-override logic. 2011-12-06 16:07:07 -05:00
ibss.c mac80211: unlock on error path in ieee80211_ibss_join() 2011-12-13 15:30:25 -05:00
ieee80211_i.h mac80211: Add HT operation modes for IBSS 2011-12-06 16:05:25 -05:00
iface.c mac80211: fix forwarded mesh frame queue mapping 2011-11-28 14:44:05 -05:00
Kconfig mac80211: remove tracing config symbol 2011-11-28 14:44:09 -05:00
key.c Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux 2011-11-22 14:05:46 -05:00
key.h mac80211: allow driver to disconnect after resume 2011-07-13 14:49:43 -04:00
led.c net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
led.h mac80211: selective throughput LED trigger active 2010-12-22 14:33:37 -05:00
main.c mac80211: Add HT operation modes for IBSS 2011-12-06 16:05:25 -05:00
Makefile mac80211: remove tracing config symbol 2011-11-28 14:44:09 -05:00
mesh_hwmp.c mac80211: don't initiate path discovery when forwarding frame with unknown DA 2011-11-28 14:44:07 -05:00
mesh_pathtbl.c mac80211: don't initiate path discovery when forwarding frame with unknown DA 2011-11-28 14:44:07 -05:00
mesh_plink.c mac80211: Support ht-cap over-rides. 2011-11-21 16:22:06 -05:00
mesh.c {nl,cfg,mac}80211: implement dot11MeshHWMPperrMinInterval 2011-11-28 14:44:06 -05:00
mesh.h mac80211: don't initiate path discovery when forwarding frame with unknown DA 2011-11-28 14:44:07 -05:00
michael.c
michael.h
mlme.c Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless 2011-12-02 15:44:03 -05:00
offchannel.c mac80211: revert on-channel work optimisations 2011-11-30 15:08:31 -05:00
pm.c mac80211: verify virtual interfaces in driver API 2011-11-09 16:01:02 -05:00
rate.c net: Fix files explicitly needing to include module.h 2011-10-31 19:30:28 -04:00
rate.h mac80211: add the minstrel_ht rate control algorithm 2010-06-02 16:12:59 -04:00
rc80211_minstrel_debugfs.c net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
rc80211_minstrel_ht_debugfs.c net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
rc80211_minstrel_ht.c minstrel_ht: Remove unused function parameters 2011-11-17 15:43:58 -05:00
rc80211_minstrel_ht.h minstrel_ht: move minstrel_mcs_groups declaration to header file 2010-06-24 15:42:18 -04:00
rc80211_minstrel.c minstrel: Remove unused function parameter in calc_rate_durations() 2011-11-11 12:32:52 -05:00
rc80211_minstrel.h minstrel_ht: fixed rate mode through debugfs 2011-06-01 15:12:29 -04:00
rc80211_pid_algo.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
rc80211_pid_debugfs.c net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
rc80211_pid.h Fix common misspellings 2011-03-31 11:26:23 -03:00
rx.c mac80211: accept public action frames with mismatched BSSID 2011-12-06 16:07:07 -05:00
scan.c mac80211: revert on-channel work optimisations 2011-11-30 15:08:31 -05:00
spectmgmt.c mac80211: Remove unnecessary OOM logging messages 2011-09-13 15:45:02 -04:00
sta_info.c mac80211: Purge A-MPDU TX queues before station destructions 2011-12-13 15:30:33 -05:00
sta_info.h mac80211: remove unused function declaration 2011-11-30 15:08:32 -05:00
status.c Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless 2011-12-02 15:44:03 -05:00
tkip.c net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
tkip.h mac80211: fix TKIP races, make API easier to use 2011-07-08 11:11:19 -04:00
tx.c mac80211: fix retransmit 2011-12-06 16:07:07 -05:00
util.c mac80211: handle protection mode, RIFS and ADDBA for HT IBSS 2011-12-06 16:05:25 -05:00
wep.c mac80211: use skb list for fragments 2011-11-21 16:20:42 -05:00
wep.h mac80211: remove the dependency on crypto_blkcipher 2011-04-04 16:20:00 -04:00
wme.c mac80211: fix forwarded mesh frame queue mapping 2011-11-28 14:44:05 -05:00
wme.h mac80211: fix forwarded mesh frame queue mapping 2011-11-28 14:44:05 -05:00
work.c mac80211: revert on-channel work optimisations 2011-11-30 15:08:31 -05:00
wpa.c mac80211: use skb list for fragments 2011-11-21 16:20:42 -05:00
wpa.h