AcoSail/kernel_optimize_test
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c2cac2f74a
kernel_optimize_test/drivers
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Mohammed Shafi Shajakhan c2cac2f74a ath10k: fix soft lockup during firmware crash/hw-restart 
During firmware crash (or) user requested manual restart
the system gets into a soft lock up state because of the
below root cause.

During user requested hardware restart / firmware crash
the system goes into a soft lockup state as 'napi_synchronize'
is called after 'napi_disable' (which sets 'NAPI_STATE_SCHED'
bit) and it sleeps into infinite loop as it waits for
'NAPI_STATE_SCHED' to be cleared. This condition is hit because
'ath10k_hif_stop' is called twice as below (resulting in calling
'napi_synchronize' after 'napi_disable')

'ath10k_core_restart' -> 'ath10k_hif_stop' (ATH10K_STATE_ON) ->
-> 'ieee80211_restart_hw' -> 'ath10k_start' -> 'ath10k_halt' ->
'ath10k_core_stop' -> 'ath10k_hif_stop' (ATH10K_STATE_RESTARTING)

Fix this by calling 'ath10k_halt' in ath10k_core_restart itself
as it makes more sense before informing mac80211 to restart h/w
Also remove 'ath10k_halt' in ath10k_start for the state of 'restarting'

Fixes: 3c97f5de1f ("ath10k: implement NAPI support")
Cc: <stable@vger.kernel.org> # v4.9
Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-12-01 13:13:13 +02:00
..
accessibility
acpi Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux 2016-10-12 11:05:23 -07:00
amba
android
ata
atm
auxdisplay
base memory-hotplug: fix store_mem_state() return value 2016-10-07 18:46:28 -07:00
bcma
block kthread: kthread worker API cleanup 2016-10-11 15:06:33 -07:00
bluetooth Bluetooth: btusb: Fix atheros firmware download error 2016-10-07 09:46:56 +02:00
bus ARM: SoC driver updates for v4.9 2016-10-07 21:23:40 -07:00
cdrom
char net: use core MTU range checking in WAN drivers 2016-10-20 14:51:09 -04:00
clk ARM: SoC: late DT updates for v4.9 2016-10-07 21:34:49 -07:00
clocksource ARM: SoC driver updates for v4.9 2016-10-07 21:23:40 -07:00
connector
cpufreq Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm 2016-10-06 07:59:37 -07:00
cpuidle nmi_backtrace: generate one-line reports for idle cpus 2016-10-07 18:46:30 -07:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2016-10-10 14:04:16 -07:00
dax Merge branch 'for-4.9/dax' into libnvdimm-for-next 2016-10-07 16:46:30 -07:00
dca
devfreq
dio
dma dmaengine updates for 4.8-rc1 2016-10-06 17:13:54 -07:00
dma-buf Merge tag 'drm-for-v4.9' of git://people.freedesktop.org/~airlied/linux 2016-10-11 18:12:22 -07:00
edac * Altera Arria10 enablement of NAND, DMA, USB, QSPI and SD-MMC FIFO 2016-10-04 12:06:26 -07:00
eisa
extcon
firewire firewire: net: set initial MTU = 1500 unconditionally, fix IPv6 on some CardBus cards 2016-10-26 17:28:50 -04:00
firmware ARM: SoC driver updates for v4.9 2016-10-07 21:23:40 -07:00
fmc
fpga
gpio Merge branch 'i2c/for-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2016-10-07 14:12:21 -07:00
gpu Merge tag 'drm-for-v4.9' of git://people.freedesktop.org/~airlied/linux 2016-10-11 18:12:22 -07:00
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid 2016-10-07 11:58:38 -07:00
hsi net: use core MTU range checking in misc drivers 2016-10-20 14:51:10 -04:00
hv
hwmon hwmon updates for v4.9 2016-10-04 10:56:14 -07:00
hwspinlock
hwtracing
i2c Merge branch 'i2c/for-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2016-10-07 14:12:21 -07:00
ide
idle nmi_backtrace: generate one-line reports for idle cpus 2016-10-07 18:46:30 -07:00
iio Staging/IIO patches for 4.9-rc1 2016-10-05 14:50:51 -07:00
infiniband net: use core MTU range checking in misc drivers 2016-10-20 14:51:10 -04:00
input Merge branch 'akpm' (patches from Andrew) 2016-10-11 17:34:10 -07:00
iommu IOMMU Updates for Linux v4.9 2016-10-11 12:52:41 -07:00
ipack
irqchip Merge branch 'akpm' (patches from Andrew) 2016-10-11 17:34:10 -07:00
isdn net: deprecate eth_change_mtu, remove usage 2016-10-13 09:36:57 -04:00
leds
lguest
lightnvm Merge branch 'for-4.9/block' of git://git.kernel.dk/linux-block 2016-10-07 14:42:05 -07:00
macintosh
mailbox Merge branch 'mailbox-for-next' of git://git.linaro.org/landing-teams/working/fujitsu/integration 2016-10-06 17:36:53 -07:00
mcb
md kthread: kthread worker API cleanup 2016-10-11 15:06:33 -07:00
media net: deprecate eth_change_mtu, remove usage 2016-10-13 09:36:57 -04:00
memory ARM: SoC driver updates for v4.9 2016-10-07 21:23:40 -07:00
memstick
message net: use core MTU range checking in misc drivers 2016-10-20 14:51:10 -04:00
mfd - Core Frameworks 2016-10-07 08:35:35 -07:00
misc net: use core MTU range checking in misc drivers 2016-10-20 14:51:10 -04:00
mmc USB/PHY/EXTCON patches for 4.9-rc1 2016-10-03 20:17:35 -07:00
mtd Merge branch 'akpm' (patches from Andrew) 2016-10-11 17:34:10 -07:00
net ath10k: fix soft lockup during firmware crash/hw-restart 2016-12-01 13:13:13 +02:00
nfc
ntb
nubus
nvdimm Merge branch 'for-4.9/dax' into libnvdimm-for-next 2016-10-07 16:46:30 -07:00
nvme nvme: use the DMA_ATTR_NO_WARN attribute 2016-10-11 15:06:32 -07:00
nvmem ARM: SoC driver updates for v4.9 2016-10-07 21:23:40 -07:00
of IOMMU Updates for Linux v4.9 2016-10-11 12:52:41 -07:00
oprofile Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-10-10 20:16:43 -07:00
parisc
parport
pci PCI changes for the v4.9 merge window: 2016-10-13 17:08:58 -07:00
pcmcia
perf ARM: SoC driver updates for v4.9 2016-10-07 21:23:40 -07:00
phy
pinctrl ARM: SoC driver updates for v4.9 2016-10-07 21:23:40 -07:00
platform platform-drivers-x86 for 4.9-1 2016-10-13 16:52:39 -07:00
pnp
power power supply and reset changes for the v4.9 series 2016-10-06 18:21:15 -07:00
powercap
pps pps: kc: fix non-tickless system config dependency 2016-10-11 15:06:32 -07:00
ps3
ptp drivers/ptp: Fix kernel memory disclosure 2016-10-13 10:20:06 -04:00
pwm
rapidio rapidio/rio_cm: use memdup_user() instead of duplicating code 2016-10-11 15:06:32 -07:00
ras
regulator Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux 2016-10-12 11:05:23 -07:00
remoteproc rpmsg updates for v4.9 2016-10-06 17:03:49 -07:00
reset
rpmsg
rtc Merge branches 'ib-mfd-gpio-4.9', 'ib-mfd-gpio-regulator-4.9', 'ib-mfd-input-4.9', 'ib-mfd-regulator-4.9', 'ib-mfd-regulator-4.9.1', 'ib-mfd-regulator-rtc-4.9', 'ib-mfd-regulator-rtc-4.9-1' and 'ib-mfd-rtc-4.9' into ibs-for-mfd-merged 2016-10-04 15:47:01 +01:00
s390 s390/net: use net core MTU range checking 2016-10-20 14:51:10 -04:00
sbus
scsi Merge branch 'for-4.9/block-irq' of git://git.kernel.dk/linux-block 2016-10-09 17:29:33 -07:00
sfi
sh
sn
soc ARM: SoC driver updates for v4.9 2016-10-07 21:23:40 -07:00
spi kthread: kthread worker API cleanup 2016-10-11 15:06:33 -07:00
spmi
ssb ssb: Fix error routine when fallback SPROM fails 2016-11-17 08:49:04 +02:00
staging net: use core MTU range checking in virt drivers 2016-10-20 14:51:09 -04:00
target
tc
thermal Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux 2016-10-12 11:05:23 -07:00
thunderbolt
tty net: use core MTU range checking in WAN drivers 2016-10-20 14:51:09 -04:00
uio
usb net: use core MTU range checking in misc drivers 2016-10-20 14:51:10 -04:00
uwb
vfio vfio_pci: use pci_alloc_irq_vectors 2016-09-29 13:36:38 -06:00
vhost
video fbdev changes for 4.9 2016-10-12 11:01:37 -07:00
virt
virtio
vlynq
vme
w1
watchdog Merge git://www.linux-watchdog.org/linux-watchdog 2016-10-13 16:44:20 -07:00
xen xen: features and fixes for 4.9-rc0 2016-10-06 11:19:10 -07:00
zorro
Kconfig
Makefile