Vasanthakumar Thiagarajan adbde344dc cfg80211: Fix race in bss timeout ... It is quite possible to run into a race in bss timeout where the drivers see the bss entry just before notifying cfg80211 of a roaming event but it got timed out by the time rdev->event_work got scehduled from cfg80211_wq. This would result in the following WARN-ON() along with the failure to notify the user space of the roaming. The other situation which is happening with ath6kl that runs into issue is when the driver reports roam to same AP event where the AP bss entry already got expired. To fix this, move cfg80211_get_bss() from __cfg80211_roamed() to cfg80211_roamed(). [158645.538384] WARNING: at net/wireless/sme.c:586 __cfg80211_roamed+0xc2/0x1b1() [158645.538810] Call Trace: [158645.538838] [<c1033527>] warn_slowpath_common+0x65/0x7a [158645.538917] [<c14cfacf>] ? __cfg80211_roamed+0xc2/0x1b1 [158645.538946] [<c103354b>] warn_slowpath_null+0xf/0x13 [158645.539055] [<c14cfacf>] __cfg80211_roamed+0xc2/0x1b1 [158645.539086] [<c14beb5b>] cfg80211_process_rdev_events+0x153/0x1cc [158645.539166] [<c14bd57b>] cfg80211_event_work+0x26/0x36 [158645.539195] [<c10482ae>] process_one_work+0x219/0x38b [158645.539273] [<c14bd555>] ? wiphy_new+0x419/0x419 [158645.539301] [<c10486cb>] worker_thread+0xf6/0x1bf [158645.539379] [<c10485d5>] ? rescuer_thread+0x1b5/0x1b5 [158645.539407] [<c104b3e2>] kthread+0x62/0x67 [158645.539484] [<c104b380>] ? __init_kthread_worker+0x42/0x42 [158645.539514] [<c151309a>] kernel_thread_helper+0x6/0xd Reported-by: Kalle Valo <kvalo@qca.qualcomm.com> Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>		2011-12-13 15:30:28 -05:00
..
.gitignore
chan.c	nl80211: Parse channel type attribute in an ibss join request	2011-12-06 16:05:24 -05:00
core.c	nl80211: advertise device AP SME	2011-11-09 16:12:38 -05:00
core.h	cfg80211: Fix race in bss timeout	2011-12-13 15:30:28 -05:00
db.txt
debugfs.c
debugfs.h
ethtool.c
ethtool.h
genregdb.awk
ibss.c	net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules	2011-10-31 19:30:30 -04:00
Kconfig	wireless: disable wext sysfs by default	2011-12-07 15:19:39 -05:00
lib80211_crypt_ccmp.c
lib80211_crypt_tkip.c
lib80211_crypt_wep.c
lib80211.c
Makefile
mesh.c	{nl,cfg,mac}80211: implement dot11MeshHWMPperrMinInterval	2011-11-28 14:44:06 -05:00
mlme.c	wireless: Support ht-capabilities over-rides.	2011-11-21 16:22:06 -05:00
nl80211.c	nl80211: Parse channel type attribute in an ibss join request	2011-12-06 16:05:24 -05:00
nl80211.h	cfg80211: add event for unexpected 4addr frames	2011-11-09 16:13:52 -05:00
radiotap.c	net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules	2011-10-31 19:30:30 -04:00
reg.c	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless	2011-12-02 15:44:03 -05:00
reg.h	cfg80211: process regulatory DFS region for countries	2011-11-21 16:20:41 -05:00
regdb.h
scan.c	cfg80211: merge in beacon ies of hidden bss.	2011-11-11 12:32:47 -05:00
sme.c	cfg80211: Fix race in bss timeout	2011-12-13 15:30:28 -05:00
sysfs.c
sysfs.h
util.c	cfg80211: Fix race in bss timeout	2011-12-13 15:30:28 -05:00
wext-compat.c	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux	2011-11-22 14:05:46 -05:00
wext-compat.h
wext-core.c	net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules	2011-10-31 19:30:30 -04:00
wext-priv.c
wext-proc.c
wext-sme.c	net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules	2011-10-31 19:30:30 -04:00
wext-spy.c	net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules	2011-10-31 19:30:30 -04:00