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OpenCloudOS-Kernel
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Pali Rohár 5ce91714b0 hwmon: (dell-smm) Cache fan_type() calls and change fan detection 
On more Dell machines (e.g. Dell Precision M3800) fan_type() call is too
expensive (CPU is too long in SMM mode) and cause kernel to hang. This is
bug in Dell SMM or BIOS.

This patch caches type for each fan (as it should not change) and changes
the way how fan presense is detected. First it try function fan_status()
as was before commit f989e55452 ("i8k: Add support for fan labels"). And
if that fails fallback to fan_type(). *_status() functions can fail in case
fan is not currently accessible (e.g. present on GPU which is currently
turned off).

Reported-by: Tolga Cakir <cevelnet@gmail.com>
Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=112021
Cc: stable@vger.kernel.org # v4.0+, will need backport
Tested-by: Tolga Cakir <cevelnet@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
 		2016-06-23 06:24:23 -07:00
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accessibility
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acpi Merge branch 'acpi-ec' 2016-06-09 23:48:54 +02:00
amba
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android
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ata remove lots of IS_ERR_VALUE abuses 2016-05-27 15:26:11 -07:00
atm atm: iphase: off by one in rx_pkt() 2016-05-31 11:52:59 -07:00
auxdisplay
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base More power management updates for v4.7-rc1 2016-05-25 15:29:21 -07:00
bcma MTD updates for v4.7: 2016-05-24 11:00:20 -07:00
block Merge branch 'stable/for-jens-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen into for-linus 2016-06-09 09:49:55 -06:00
bluetooth Bluetooth: Add USB ID 13D3:3487 to ath3k 2016-05-13 16:54:59 +02:00
bus Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2016-05-19 10:02:26 -07:00
cdrom
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char Merge branch 'akpm' (patches from Andrew) 2016-05-20 22:31:33 -07:00
clk clk: nxp: Select MFD_SYSCON for creg driver 2016-06-01 15:14:06 -07:00
clocksource Small release overall. 2016-05-19 11:27:09 -07:00
connector
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cpufreq Merge branches 'pm-cpufreq-fixes' and 'pm-cpuidle' 2016-06-09 23:49:16 +02:00
cpuidle cpuidle: Fix cpuidle_state_is_coupled() argument in cpuidle_enter() 2016-05-18 02:48:37 +02:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2016-05-30 15:20:18 -07:00
dax /dev/dax, core: file operations and dax-mmap 2016-05-20 22:02:55 -07:00
dca
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devfreq
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dio
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dma remove lots of IS_ERR_VALUE abuses 2016-05-27 15:26:11 -07:00
dma-buf dma-buf: use vma_pages() 2016-05-31 22:17:05 +05:30
edac EDAC, sb_edac: Readd accidentally dropped Broadwell-D support 2016-06-03 17:28:21 +02:00
eisa
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extcon
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firewire
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firmware efi/arm: Fix the format of EFI debug messages 2016-06-03 09:57:36 +02:00
fmc
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fpga
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gpio gpio: bcm-kona: fix bcm_kona_gpio_reset() warnings 2016-06-08 14:04:35 +02:00
gpu Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2016-06-10 10:37:01 -07:00
hid Merge branch 'for-4.7/wacom' into for-linus 2016-05-17 12:42:27 +02:00
hsi HSI: omap-ssi: move omap_ssi_port_update_fclk 2016-05-09 22:45:18 +02:00
hv
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hwmon hwmon: (dell-smm) Cache fan_type() calls and change fan detection 2016-06-23 06:24:23 -07:00
hwspinlock drivers/hwspinlock: use correct radix tree API 2016-05-20 17:58:30 -07:00
hwtracing Char / Misc driver update for 4.7-rc1 2016-05-20 21:20:31 -07:00
i2c i2c: mux: reg: Provide of_match_table 2016-06-09 22:38:16 +02:00
ide
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idle
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iio Staging and IIO driver update for 4.7-rc1 2016-05-20 22:20:48 -07:00
infiniband IB/IPoIB: Don't update neigh validity for unresolved entries 2016-06-07 10:49:48 -04:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2016-05-27 19:14:35 -07:00
iommu remove lots of IS_ERR_VALUE abuses 2016-05-27 15:26:11 -07:00
ipack
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irqchip irqchip/irq-pic32-evic: Fix bug with external interrupts. 2016-06-02 18:03:50 +01:00
isdn TTY and Serial driver update for 4.7-rc1 2016-05-20 20:57:27 -07:00
leds pwm: Changes for v4.7-rc1 2016-05-25 10:40:15 -07:00
lguest
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lightnvm lightnvm: reserved space calculation incorrect 2016-05-06 12:51:10 -06:00
macintosh
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mailbox mailbox: Fix devm_ioremap_resource error detection code 2016-05-08 22:44:46 +05:30
mcb
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md Merge branch 'for-linus' of git://git.kernel.dk/linux-block 2016-05-27 14:28:09 -07:00
media uvc_v4l2: Simplify compat ioctl implementation 2016-06-10 15:11:15 -07:00
memory MTD updates for v4.7: 2016-05-24 11:00:20 -07:00
memstick drivers/memstick/core/mspro_block: use kmemdup 2016-05-23 17:04:14 -07:00
message SCSI misc on 20160517 2016-05-18 16:38:59 -07:00
mfd remove lots of IS_ERR_VALUE abuses 2016-05-27 15:26:11 -07:00
misc Char / Misc driver update for 4.7-rc1 2016-05-20 21:20:31 -07:00
mmc mmc: sunxi: Re-enable eMMC HS-DDR modes on Allwinner A80 2016-06-02 10:40:20 +02:00
mtd This pull request contains mostly cleanups and minor 2016-05-27 18:49:29 -07:00
net vmxnet3: segCnt can be 1 for LRO packets 2016-06-10 00:15:11 -07:00
nfc NFC: pn533: handle interrupted commands in pn533_recv_frame 2016-05-10 00:01:47 +02:00
ntb
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nubus
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nvdimm DAX error handling for 4.7 2016-05-26 19:34:26 -07:00
nvme NVMe: Only release requested regions 2016-06-09 14:28:28 -06:00
nvmem remove lots of IS_ERR_VALUE abuses 2016-05-27 15:26:11 -07:00
of drivers/of: Fix depth for sub-tree blob in unflatten_dt_nodes() 2016-06-09 14:36:34 -05:00
oprofile
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parisc
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parport
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pci Char / Misc driver update for 4.7-rc1 2016-05-20 21:20:31 -07:00
pcmcia
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perf drivers/perf: arm_pmu: Avoid leaking pmu->irq_affinity on error 2016-06-03 10:16:21 +01:00
phy USB patches for 4.7-rc1 2016-05-20 21:12:25 -07:00
pinctrl pinctrl: mediatek: fix dual-edge code defect 2016-05-31 10:13:45 +02:00
platform platform/chrome: Driver and binding changes for 4.7 2016-05-28 12:32:01 -07:00
pnp driver core update for 4.7-rc1 2016-05-20 21:26:15 -07:00
power power supply and reset changes for the v4.7 series 2016-05-20 14:06:21 -07:00
powercap Power management material for v4.7-rc1 2016-05-16 19:17:22 -07:00
pps
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ps3
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ptp ptp: oops in ptp_ioctl() 2016-05-29 22:32:27 -07:00
pwm pwm: Changes for v4.7-rc1 2016-05-25 10:40:15 -07:00
rapidio rapidio/mport_cdev: fix uapi type definitions 2016-05-05 17:38:53 -07:00
ras
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regulator regulator: pwm: Use pwm_get_args() where appropriate 2016-05-17 14:45:02 +02:00
remoteproc remoteproc: Add additional crash reasons 2016-05-12 15:50:19 -07:00
reset
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rpmsg rpmsg: add THIS_MODULE to rpmsg_driver in rpmsg core 2016-05-06 11:08:58 -07:00
rtc rtc: tps6586x: rename so module can be autoloaded 2016-05-21 17:07:17 +02:00
s390 DAX error handling for 4.7 2016-05-26 19:34:26 -07:00
sbus openprom: fix warning 2016-05-20 18:33:37 -07:00
scsi Merge remote-tracking branch 'mkp-scsi/4.7/scsi-fixes' into fixes 2016-06-04 09:53:29 -04:00
sfi
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sh
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sn
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soc soc: mtk-pmic-wrap: avoid integer overflow warning 2016-05-19 15:20:24 +02:00
spi sound updates #2 for 4.7-rc1 2016-05-28 12:23:12 -07:00
spmi
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ssb
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staging Round two of 4.7 merge window patches 2016-05-28 11:04:16 -07:00
target Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2016-05-28 12:04:17 -07:00
tc
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thermal Merge branch 'for-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux 2016-06-12 06:30:39 -07:00
thunderbolt
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tty devpts: Make each mount of devpts an independent filesystem. 2016-06-05 10:36:01 -07:00
uio
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usb Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2016-05-28 12:04:17 -07:00
uwb
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vfio vfio/pci: Allow VPD short read 2016-05-31 21:25:52 -06:00
vhost target: make close_session optional 2016-05-10 01:19:26 -07:00
video OMAPDSS: HDMI5: Change DDC timings 2016-05-31 08:20:43 +03:00
virt
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virtio virtio_balloon: fix PFN format for virtio-1 2016-05-22 19:44:13 +03:00
vlynq
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vme
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w1
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watchdog Merge git://www.linux-watchdog.org/linux-watchdog 2016-05-25 10:19:17 -07:00
xen Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2016-05-28 12:04:17 -07:00
zorro
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Kconfig libnvdimm for 4.7 2016-05-23 11:18:01 -07:00
Makefile /dev/dax, pmem: direct access to persistent memory 2016-05-20 22:02:53 -07:00