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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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1b57b6210f
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:
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.. | ||
.gitignore | ||
ap.c | ||
chan.c | ||
core.c | ||
core.h | ||
db.txt | ||
debugfs.c | ||
debugfs.h | ||
ethtool.c | ||
genregdb.awk | ||
ibss.c | ||
Kconfig | ||
lib80211_crypt_ccmp.c | ||
lib80211_crypt_tkip.c | ||
lib80211_crypt_wep.c | ||
lib80211.c | ||
Makefile | ||
mesh.c | ||
mlme.c | ||
nl80211.c | ||
nl80211.h | ||
ocb.c | ||
of.c | ||
radiotap.c | ||
rdev-ops.h | ||
reg.c | ||
reg.h | ||
regdb.h | ||
scan.c | ||
sme.c | ||
sysfs.c | ||
sysfs.h | ||
trace.c | ||
trace.h | ||
util.c | ||
wext-compat.c | ||
wext-compat.h | ||
wext-core.c | ||
wext-priv.c | ||
wext-proc.c | ||
wext-sme.c | ||
wext-spy.c |