Arend Van Spriel 1b57b6210f cfg80211: make cfg80211_sched_scan_results() work from atomic context ... Drivers should be able to call cfg80211_sched_scan_results() from atomic context. However, with the introduction of multiple scheduled scan feature this requirement was not taken into account resulting in regression shown below. [ 119.021594] BUG: scheduling while atomic: irq/47-iwlwifi/517/0x00000200 [ 119.021604] Modules linked in: [...] [ 119.021759] CPU: 1 PID: 517 Comm: irq/47-iwlwifi Not tainted 4.12.0-rc2-t440s-20170522+ #1 [ 119.021763] Hardware name: LENOVO 20AQS03H00/20AQS03H00, BIOS GJET91WW (2.41 ) 09/21/2016 [ 119.021766] Call Trace: [ 119.021778] ? dump_stack+0x5c/0x84 [ 119.021784] ? __schedule_bug+0x4c/0x70 [ 119.021792] ? __schedule+0x496/0x5c0 [ 119.021798] ? schedule+0x2d/0x80 [ 119.021804] ? schedule_preempt_disabled+0x5/0x10 [ 119.021810] ? __mutex_lock.isra.0+0x18e/0x4c0 [ 119.021817] ? __wake_up+0x2f/0x50 [ 119.021833] ? cfg80211_sched_scan_results+0x19/0x60 [cfg80211] [ 119.021844] ? cfg80211_sched_scan_results+0x19/0x60 [cfg80211] [ 119.021859] ? iwl_mvm_rx_lmac_scan_iter_complete_notif+0x17/0x30 [iwlmvm] [ 119.021869] ? iwl_pcie_rx_handle+0x2a9/0x7e0 [iwlwifi] [ 119.021878] ? iwl_pcie_irq_handler+0x17c/0x730 [iwlwifi] [ 119.021884] ? irq_forced_thread_fn+0x60/0x60 [ 119.021887] ? irq_thread_fn+0x16/0x40 [ 119.021892] ? irq_thread+0x109/0x180 [ 119.021896] ? wake_threads_waitq+0x30/0x30 [ 119.021901] ? kthread+0xf2/0x130 [ 119.021905] ? irq_thread_dtor+0x90/0x90 [ 119.021910] ? kthread_create_on_node+0x40/0x40 [ 119.021915] ? ret_from_fork+0x26/0x40 Fixes: b34939b983 ("cfg80211: add request id to cfg80211_sched_scan_*() api") Reported-by: Sander Eikelenboom <linux@eikelenboom.it> Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>		2017-05-23 14:36:46 +02:00
..
.gitignore
ap.c	cfg80211: Make pre-CAC results valid only for ETSI domain	2017-03-06 13:54:15 +01:00
chan.c	cfg80211: Share Channel DFS state across wiphys of same DFS domain	2017-03-06 13:54:20 +01:00
core.c	cfg80211: add request id to cfg80211_sched_scan_*() api	2017-04-28 14:51:43 +02:00
core.h	cfg80211: add request id to cfg80211_sched_scan_*() api	2017-04-28 14:51:43 +02:00
db.txt
debugfs.c	cfg80211 debugfs: Cleanup some checkpatch issues	2017-02-08 09:15:59 +01:00
debugfs.h
ethtool.c
genregdb.awk
ibss.c	cfg80211: Make pre-CAC results valid only for ETSI domain	2017-03-06 13:54:15 +01:00
Kconfig	cfg80211: Fix some linguistics in Kconfig	2016-02-24 09:04:23 +01:00
lib80211_crypt_ccmp.c	lib80211: ratelimit key index mismatch	2015-12-04 14:43:32 +01:00
lib80211_crypt_tkip.c	wireless: fix bogus maybe-uninitialized warning	2016-11-17 08:46:38 +02:00
lib80211_crypt_wep.c	lib80211: Use skcipher and ahash	2016-01-27 20:36:03 +08:00
lib80211.c
Makefile	For 4.11, we seem to have more than in the past few releases:	2017-01-14 12:02:15 -05:00
mesh.c	cfg80211: Make pre-CAC results valid only for ETSI domain	2017-03-06 13:54:15 +01:00
mlme.c	cfg80211: Use a structure to pass connect response params	2017-03-31 08:31:26 +02:00
nl80211.c	nl80211: correctly validate MU-MIMO groups	2017-05-08 11:24:34 +02:00
nl80211.h	cfg80211: unify cfg80211_roamed() and cfg80211_roamed_bss()	2017-04-28 12:28:44 +02:00
ocb.c	cfg80211: ocb: Fix null pointer deref if join_ocb is unimplemented	2015-12-04 14:43:32 +01:00
of.c	cfg80211: support ieee80211-freq-limit DT property	2017-01-06 14:01:13 +01:00
radiotap.c	cfg80211: add radiotap VHT info to rtap_namespace_sizes	2016-02-24 09:04:41 +01:00
rdev-ops.h	cfg80211: add request id parameter to .sched_scan_stop() signature	2017-04-26 23:17:40 +02:00
reg.c	cfg80211: Fix dfs state propagation for non-DFS center channel	2017-04-25 21:42:52 +02:00
reg.h	cfg80211: Share Channel DFS state across wiphys of same DFS domain	2017-03-06 13:54:20 +01:00
regdb.h
scan.c	cfg80211: make cfg80211_sched_scan_results() work from atomic context	2017-05-23 14:36:46 +02:00
sme.c	cfg80211: unify cfg80211_roamed() and cfg80211_roamed_bss()	2017-04-28 12:28:44 +02:00
sysfs.c	cfg80211: check rdev resume callback only for registered wiphy	2017-03-29 09:11:29 +02:00
sysfs.h
trace.c
trace.h	cfg80211: add request id to cfg80211_sched_scan_*() api	2017-04-28 14:51:43 +02:00
util.c	mac80211: strictly check mesh address extension mode	2017-05-17 14:24:29 +02:00
wext-compat.c	cfg80211: move add/change interface monitor flags into params	2017-04-13 13:41:38 +02:00
wext-compat.h	cfg80211-wext: export symbols only when needed	2015-02-28 21:31:09 +01:00
wext-core.c	wext: uninline stream addition functions	2017-01-13 09:38:42 +01:00
wext-priv.c
wext-proc.c
wext-sme.c	cfg80211: wext does not need to set monitor channel in managed mode	2017-01-11 14:10:44 +01:00
wext-spy.c