Simon Wunderlich beffd138d3 mac80211: don't cancel csa finalize work within stop_ap ... The current channel switch code has a potential deadlock: 1) * cfg80211_stop_ap acquires wdev-lock * ieee80211_stop_ap calls cancel_work_sync for the csa_finalize_work, which acquires the associated worker-lock 2) * ieee80211_csa_finalize_work holds the worker-lock when run * it calls cfg80211_ch_switch_notify which will claim the wdev-lock, and also needs to claim the sdata-lock (which is the same as the wdev-lock) to modify the beacons. It is sufficient to just set the channel switch active to false. If the worker is running later, it will find the channel switch to not be active anymore and returns immediately without changing anything. Canceling the worker is done anyway when the interface goes down (ieee80211_do_stop). Reported-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de> Signed-off-by: Johannes Berg <johannes.berg@intel.com>		2013-12-02 11:51:54 +01:00
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aes_ccm.c	mac80211: port CCMP to cryptoapi's CCM driver	2013-10-11 15:38:20 +02:00
aes_ccm.h	mac80211: port CCMP to cryptoapi's CCM driver	2013-10-11 15:38:20 +02:00
aes_cmac.c	mac80211: include export.h in aes_cmac	2012-11-07 18:01:54 +01:00
aes_cmac.h	mac80211: fix CMAC races	2011-07-08 11:11:20 -04:00
agg-rx.c	mac80211: improve aggregation debug messages	2013-01-18 21:55:15 +01:00
agg-tx.c	mac80211: fix aggregation state with current drivers	2013-01-24 15:43:51 +01:00
cfg.c	mac80211: don't cancel csa finalize work within stop_ap	2013-12-02 11:51:54 +01:00
cfg.h
chan.c	mac80211: add min required channel definition field	2013-11-25 20:52:05 +01:00
debug.h	mac80211: process the CSA frame for mesh accordingly	2013-10-28 15:05:28 +01:00
debugfs_key.c	mac80211: move sdata debugfs dir to vif	2013-03-18 20:10:04 +01:00
debugfs_key.h	mac80211: support separate default keys	2010-12-13 15:23:29 -05:00
debugfs_netdev.c	mac80211: implement SMPS for AP	2013-10-28 15:05:11 +01:00
debugfs_netdev.h	mac80211: reduce reliance on netdev	2009-12-21 18:38:52 -05:00
debugfs_sta.c	mac80211: Tx frame latency statistics	2013-12-02 11:51:50 +01:00
debugfs_sta.h
debugfs.c	mac80211: Tx frame latency statistics	2013-12-02 11:51:50 +01:00
debugfs.h	mac80211: use __printf attribute in debugfs	2012-10-18 09:01:57 +02:00
driver-ops.h	mac80211: add explicit IBSS driver operations	2013-10-01 12:17:45 +02:00
event.c
ht.c	mac80211: implement SMPS for AP	2013-10-28 15:05:11 +01:00
ibss.c	mac80211: move csa_chandef to sdata	2013-11-25 20:51:58 +01:00
ieee80211_i.h	mac80211: modify beacon using sdata/wdev-lock, not rtnl lock	2013-12-02 11:51:53 +01:00
iface.c	mac80211: remove sta_info_flush() from interface teardown	2013-12-02 11:51:50 +01:00
Kconfig	mac80211: process the CSA frame for mesh accordingly	2013-10-28 15:05:28 +01:00
key.c	mac80211: add generic cipher scheme support	2013-11-25 20:50:52 +01:00
key.h	mac80211: add generic cipher scheme support	2013-11-25 20:50:52 +01:00
led.c	mac80211: use oneshot blink API for LED triggers	2013-08-01 10:48:49 +02:00
led.h	mac80211: use oneshot blink API for LED triggers	2013-08-01 10:48:49 +02:00
main.c	mac80211: Tx frame latency statistics	2013-12-02 11:51:50 +01:00
Makefile	mac80211: mesh power save basics	2013-02-04 18:57:47 +01:00
mesh_hwmp.c	mac80211: use put_unaligned_le in mesh when necessary	2013-11-25 20:51:55 +01:00
mesh_pathtbl.c	mac80211: use put_unaligned_le in mesh when necessary	2013-11-25 20:51:55 +01:00
mesh_plink.c	mac80211: use put_unaligned_le16 in mesh_plink_frame_tx	2013-11-25 20:51:53 +01:00
mesh_ps.c	mac80211: use put_unaligned_le16 in mesh_plink_frame_tx	2013-11-25 20:51:53 +01:00
mesh_sync.c	mac80211: mesh: only get tsf if we need it	2013-12-02 11:51:52 +01:00
mesh.c	mac80211: move csa_chandef to sdata	2013-11-25 20:51:58 +01:00
mesh.h	mac80211: use put_unaligned_le in mesh when necessary	2013-11-25 20:51:55 +01:00
michael.c
michael.h
mlme.c	mac80211: update ht flag if bss configuration changed	2013-12-02 11:51:51 +01:00
offchannel.c	mac80211: Run deferred scan if last roc_list item is not started	2013-09-30 12:36:56 +02:00
pm.c	mac80211: fix monitor interface suspend crash regression	2013-07-23 14:02:08 +02:00
rate.c	mac80211: respect rate mask in TX	2013-10-15 15:16:29 +02:00
rate.h	mac80211/rc80211: add chandef to rate initialization	2013-07-16 09:58:02 +03:00
rc80211_minstrel_debugfs.c	mac80211: cosmetics for minstrel_debugfs	2013-04-17 17:08:23 +02:00
rc80211_minstrel_ht_debugfs.c	mac80211: minstrel_ht: replace some occurences of MCS_GROUP_RATES	2013-11-25 20:52:07 +01:00
rc80211_minstrel_ht.c	mac80211: minstrel_ht: do not sample unsupported rates	2013-11-25 20:52:21 +01:00
rc80211_minstrel_ht.h	mac80211/minstrel_ht: use the new rate control API	2013-04-22 16:16:41 +02:00
rc80211_minstrel.c	mac80211: minstrels: spare numerous useless calls to get_random_bytes	2013-11-25 20:52:09 +01:00
rc80211_minstrel.h	mac80211/minstrel: use the new rate control API	2013-04-22 16:16:41 +02:00
rc80211_pid_algo.c	mac80211/rc80211: add chandef to rate initialization	2013-07-16 09:58:02 +03:00
rc80211_pid_debugfs.c	mac80211: fix some snprintf misuses	2013-10-01 12:16:51 +02:00
rc80211_pid.h	Fix common misspellings	2011-03-31 11:26:23 -03:00
rx.c	mac80211: use put_unaligned_le in mesh when necessary	2013-11-25 20:51:55 +01:00
scan.c	cfg80211: consolidate passive-scan and no-ibss flags	2013-11-25 20:49:35 +01:00
spectmgmt.c	mac80211: process mesh channel switching using beacon	2013-10-28 15:05:30 +01:00
sta_info.c	mac80211: Tx frame latency statistics	2013-12-02 11:51:50 +01:00
sta_info.h	mac80211: Tx frame latency statistics	2013-12-02 11:51:50 +01:00
status.c	mac80211: Tx frame latency statistics	2013-12-02 11:51:50 +01:00
tkip.c	mac80211: use just spin_lock() in ieee80211_get_tkip_p2k()	2013-05-16 22:38:06 +02:00
tkip.h	mac80211: fix TKIP races, make API easier to use	2011-07-08 11:11:19 -04:00
trace.c	mac80211: trace debug messages	2012-06-24 11:33:18 +02:00
trace.h	mac80211: add min required channel definition field	2013-11-25 20:52:05 +01:00
tx.c	mac80211: Tx frame latency statistics	2013-12-02 11:51:50 +01:00
util.c	mac80211: add min required channel definition field	2013-11-25 20:52:05 +01:00
vht.c	mac80211: enable easier manipulation of VHT beamforming caps	2013-11-25 20:52:01 +01:00
wep.c	wireless: move crypto constants to ieee80211.h	2013-05-16 22:39:41 +02:00
wep.h	mac80211: move RX WEP weak IV counting	2012-03-13 14:54:16 -04:00
wme.c	mac80211: mesh power save basics	2013-02-04 18:57:47 +01:00
wme.h	mac80211: save wmm_acm per sdata	2012-06-20 17:35:22 +02:00
wpa.c	mac80211: add generic cipher scheme support	2013-11-25 20:50:52 +01:00
wpa.h	mac80211: add generic cipher scheme support	2013-11-25 20:50:52 +01:00