android/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
android_kernel_xiaomi_sm8450/drivers
History
Stewart Smith 5b8b580630 rtc-opal: Fix handling of firmware error codes, prevent busy loops 
According to the OPAL docs:
  skiboot-5.2.5/doc/opal-api/opal-rtc-read-3.txt
  skiboot-5.2.5/doc/opal-api/opal-rtc-write-4.txt

OPAL_HARDWARE may be returned from OPAL_RTC_READ or OPAL_RTC_WRITE and
this indicates either a transient or permanent error.

Prior to this patch, Linux was not dealing with OPAL_HARDWARE being a
permanent error particularly well, in that you could end up in a busy
loop.

This was not too hard to trigger on an AMI BMC based OpenPOWER machine
doing a continuous "ipmitool mc reset cold" to the BMC, the result of
that being that we'd get stuck in an infinite loop in
opal_get_rtc_time().

We now retry a few times before returning the error higher up the
stack.

Fixes: 16b1d26e77b1 ("rtc/tpo: Driver to support rtc and wakeup on PowerNV platform")
Cc: stable@vger.kernel.org # v3.19+
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2018-01-27 21:15:59 +11:00
..
accessibility
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
acpi
Merge branch 'acpi-ec' into acpi
2017-11-30 13:37:29 +01:00
amba
A couple of dma-mapping updates:
2017-11-14 16:54:12 -08:00
android
Char/Misc patches for 4.15-rc1
2017-11-16 09:10:59 -08:00
ata
Merge branch 'for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata
2017-11-15 14:11:41 -08:00
atm
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2017-11-29 13:10:25 -08:00
auxdisplay
auxdisplay: img-ascii-lcd: Only build on archs that have IOMEM
2017-11-27 12:36:45 -08:00
base
treewide: Remove TIMER_FUNC_TYPE and TIMER_DATA_TYPE casts
2017-11-21 16:35:54 -08:00
bcma
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2017-11-15 11:56:19 -08:00
block
Merge branch 'for-linus' of git://git.kernel.dk/linux-block
2017-12-01 08:05:45 -05:00
bluetooth
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2017-11-04 09:26:51 +09:00
bus
ARM: SoC driver updates for v4.15
2017-11-16 16:05:01 -08:00
cdrom
Merge branch 'for-4.15/block' of git://git.kernel.dk/linux-block
2017-11-14 15:32:19 -08:00
char
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2017-11-26 14:11:54 -08:00
clk
We have two changes to the core framework this time around. The first being a
2017-11-17 20:04:24 -08:00
clocksource
- final batch of "non trivial" timer conversions (multi-tree dependencies,
2017-11-23 16:29:05 +01:00
connector
…
cpufreq
cpufreq: mediatek: add missing MODULE_DESCRIPTION/AUTHOR/LICENSE
2017-11-22 00:00:14 +01:00
cpuidle
powerpc/pseries/cpuidle: add polling idle for shared processor guests
2018-01-18 15:43:44 +11:00
crypto
powerpc updates for 4.15
2017-11-16 12:47:46 -08:00
dax
device-dax: implement ->split() to catch invalid munmap attempts
2017-11-29 18:40:42 -08:00
dca
…
devfreq
Merge branches 'pm-devfreq' and 'pm-tools'
2017-11-13 01:41:39 +01:00
dio
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
dma
dmaengine updates for 4.15-rc1
2017-11-14 16:49:31 -08:00
dma-buf
Tracing updates for 4.15:
2017-11-17 14:58:01 -08:00
edac
Modules updates for v4.15
2017-11-15 13:46:33 -08:00
eisa
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
extcon
USB/PHY patches for 4.15-rc1
2017-11-13 21:14:07 -08:00
firewire
Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2017-11-13 17:56:58 -08:00
firmware
drivers/firmware: psci: Convert timers to use timer_setup()
2017-11-21 15:46:44 -08:00
fmc
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
fpga
Char/Misc patches for 4.15-rc1
2017-11-16 09:10:59 -08:00
fsi
…
gpio
This is the bulk of pin control changes for the v4.15
2017-11-16 10:57:11 -08:00
gpu
Merge branch 'drm-fixes-4.15' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
2017-12-01 09:15:57 +10:00
hid
treewide: setup_timer() -> timer_setup()
2017-11-21 15:57:07 -08:00
hsi
HSI changes for the v4.15 series
2017-11-15 13:35:43 -08:00
hv
Char/Misc patches for 4.15-rc1
2017-11-16 09:10:59 -08:00
hwmon
hwmon: (jc42) optionally try to disable the SMBUS timeout
2017-11-30 13:12:44 -08:00
hwspinlock
hwspinlock update for v4.15
2017-11-17 20:16:20 -08:00
hwtracing
Char/Misc patches for 4.15-rc1
2017-11-16 09:10:59 -08:00
i2c
i2c: i2c-boardinfo: fix memory leaks on devinfo
2017-11-27 19:14:29 +01:00
ide
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide
2017-11-19 08:04:41 -10:00
idle
Merge branch 'pm-cpuidle'
2017-11-13 01:34:14 +01:00
iio
treewide: setup_timer() -> timer_setup()
2017-11-21 15:57:07 -08:00
infiniband
IB/core: disable memory registration of filesystem-dax vmas
2017-11-29 18:40:42 -08:00
input
treewide: Remove TIMER_FUNC_TYPE and TIMER_DATA_TYPE casts
2017-11-21 16:35:54 -08:00
iommu
treewide: setup_timer() -> timer_setup()
2017-11-21 15:57:07 -08:00
ipack
…
irqchip
Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2017-11-26 14:39:20 -08:00
isdn
treewide: setup_timer() -> timer_setup() (2 field)
2017-11-21 15:57:09 -08:00
leds
LED updates for 4.15rc1
2017-11-14 18:09:31 -08:00
lightnvm
lightnvm: Convert timers to use timer_setup()
2017-11-21 15:46:44 -08:00
macintosh
macintosh/adb: Properly mark continued kernel messages
2018-01-27 21:10:22 +11:00
mailbox
Change to POLL api and fixes for FlexRM and OMAP driver
2017-11-15 13:39:18 -08:00
mcb
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
md
bcache: check return value of register_shrinker
2017-11-24 16:23:01 -07:00
media
v4l2: disable filesystem-dax mapping support
2017-11-29 18:40:42 -08:00
memory
ARM: SoC driver updates for v4.15
2017-11-16 16:05:01 -08:00
memstick
treewide: setup_timer() -> timer_setup()
2017-11-21 15:57:07 -08:00
message
Modules updates for v4.15
2017-11-15 13:46:33 -08:00
mfd
treewide: setup_timer() -> timer_setup()
2017-11-21 15:57:07 -08:00
misc
cxl: Remove support for "Processing accelerators" class
2018-01-24 11:43:00 +11:00
mmc
MMC core:
2017-12-01 08:14:22 -05:00
mtd
Rename superblock flags (MS_xyz -> SB_xyz)
2017-11-27 13:05:09 -08:00
mux
…
net
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2017-11-29 13:10:25 -08:00
nfc
treewide: setup_timer() -> timer_setup() (2 field)
2017-11-21 15:57:09 -08:00
ntb
treewide: setup_timer() -> timer_setup()
2017-11-21 15:57:07 -08:00
nubus
m68k updates for 4.15
2017-11-13 12:10:24 -08:00
nvdimm
libnvdimm for 4.15
2017-11-17 09:51:57 -08:00
nvme
nvme-pci: fix NULL pointer dereference in nvme_free_host_mem()
2017-11-28 08:49:26 -08:00
nvmem
Char/Misc patches for 4.15-rc1
2017-11-16 09:10:59 -08:00
of
DeviceTree fixes for 4.15:
2017-11-20 21:38:41 -10:00
opp
…
oprofile
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
parisc
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
parport
Char/Misc patches for 4.15-rc1
2017-11-16 09:10:59 -08:00
pci
PCI/AER: Add uevents in AER and EEH error/resume
2018-01-27 20:02:51 +11:00
pcmcia
drivers/pcmcia/sa1111_badge4.c: avoid unused function warning
2017-11-17 16:10:04 -08:00
perf
arm64 updates for 4.15
2017-11-15 10:56:56 -08:00
phy
USB/PHY patches for 4.15-rc1
2017-11-13 21:14:07 -08:00
pinctrl
This is the bulk of pin control changes for the v4.15
2017-11-16 10:57:11 -08:00
platform
Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2017-11-25 08:37:16 -10:00
pnp
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
power
power supply and reset changes for the v4.15 series
2017-11-15 13:37:15 -08:00
powercap
…
pps
treewide: setup_timer() -> timer_setup()
2017-11-21 15:57:07 -08:00
ps3
ps3: Remove deprecated create_singlethread_workqueue
2017-12-04 15:01:08 +11:00
ptp
xen: features and fixes for v4.15-rc1
2017-11-16 13:06:27 -08:00
pwm
pwm: Changes for v4.15-rc1
2017-11-22 21:09:18 -10:00
rapidio
Merge branch 'akpm' (patches from Andrew)
2017-11-17 16:56:17 -08:00
ras
Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2017-11-13 17:56:58 -08:00
regulator
- New Drivers
2017-11-16 09:15:57 -08:00
remoteproc
remoteproc updates for v4.15
2017-11-17 20:14:10 -08:00
reset
ARM: SoC driver updates for v4.15
2017-11-16 16:05:01 -08:00
rpmsg
rpmsg updates for v4.15
2017-11-17 20:12:08 -08:00
rtc
rtc-opal: Fix handling of firmware error codes, prevent busy loops
2018-01-27 21:15:59 +11:00
s390
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
2017-11-30 08:13:36 -08:00
sbus
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
2017-11-17 20:21:44 -08:00
scsi
Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2017-11-25 08:37:16 -10:00
sfi
…
sh
A couple of dma-mapping updates:
2017-11-14 16:54:12 -08:00
sn
…
soc
ARM: SoC driver updates for v4.15
2017-11-16 16:05:01 -08:00
spi
Merge remote-tracking branches 'spi/topic/sh-msiof', 'spi/topic/slave', 'spi/topic/spreadtrum' and 'spi/topic/tegra114' into spi-next
2017-11-10 21:33:51 +00:00
spmi
…
ssb
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
staging
Rename superblock flags (MS_xyz -> SB_xyz)
2017-11-27 13:05:09 -08:00
target
Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2017-11-25 08:37:16 -10:00
tc
…
tee
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
thermal
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux
2017-11-17 14:31:27 -08:00
thunderbolt
Char/Misc patches for 4.15-rc1
2017-11-16 09:10:59 -08:00
tty
treewide: Remove TIMER_FUNC_TYPE and TIMER_DATA_TYPE casts
2017-11-21 16:35:54 -08:00
uio
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
usb
treewide: setup_timer() -> timer_setup()
2017-11-21 15:57:07 -08:00
uwb
treewide: setup_timer() -> timer_setup()
2017-11-21 15:57:07 -08:00
vfio
VFIO Updates for Linux v4.15
2017-11-14 16:47:47 -08:00
vhost
Merge branch 'work.iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2017-11-17 12:08:18 -08:00
video
fbdev changes for v4.15:
2017-11-20 21:50:24 -10:00
virt
…
virtio
virtio_balloon: fix deadlock on OOM
2017-11-14 23:57:38 +02:00
vlynq
…
vme
Char/Misc patches for 4.15-rc1
2017-11-16 09:10:59 -08:00
w1
Char/Misc patches for 4.15-rc1
2017-11-16 09:10:59 -08:00
watchdog
treewide: setup_timer() -> timer_setup()
2017-11-21 15:57:07 -08:00
xen
treewide: Switch DEFINE_TIMER callbacks to struct timer_list *
2017-11-21 15:57:05 -08:00
zorro
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
Kconfig
Merge branches 'pm-cpufreq-sched' and 'pm-opp'
2017-11-13 01:40:52 +01:00
Makefile
Merge branches 'pm-cpufreq-sched' and 'pm-opp'
2017-11-13 01:40:52 +01:00