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Tejun Heo ecd75ad514 libata: disable LPM for some WD SATA-I devices 
For some reason, some early WD drives spin up and down drives
erratically when the link is put into slumber mode which can reduce
the life expectancy of the device significantly.  Unfortunately, we
don't have full list of devices and given the nature of the issue it'd
be better to err on the side of false positives than the other way
around.  Let's disable LPM on all WD devices which match one of the
known problematic model prefixes and are SATA-I.

As horkage list doesn't support matching SATA capabilities, this is
implemented as two horkages - WD_BROKEN_LPM and NOLPM.  The former is
set for the known prefixes and sets the latter if the matched device
is SATA-I.

Note that this isn't optimal as this disables all LPM operations and
partial link power state reportedly works fine on these; however, the
way LPM is implemented in libata makes it difficult to precisely map
libata LPM setting to specific link power state.  Well, these devices
are already fairly outdated.  Let's just disable whole LPM for now.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-and-tested-by: Nikos Barkas <levelwol@gmail.com>
Reported-and-tested-by: Ioannis Barkas <risc4all@yahoo.com>
References: https://bugzilla.kernel.org/show_bug.cgi?id=57211
Cc: stable@vger.kernel.org
2014-01-16 09:49:10 -05:00
..
accessibility
acpi More ACPI and power management updates for 3.13-rc1 2013-11-20 13:25:04 -08:00
amba DMA-API: amba: get rid of separate dma_mask 2013-10-31 14:48:38 +00:00
ata libata: disable LPM for some WD SATA-I devices 2014-01-16 09:49:10 -05:00
atm atm: idt77252: fix dev refcnt leak 2013-11-19 15:53:02 -05:00
auxdisplay
base More ACPI and power management updates for 3.13-rc1 2013-11-20 13:25:04 -08:00
bcma Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2013-11-13 17:40:34 +09:00
block kernel: remove CONFIG_USE_GENERIC_SMP_HELPERS cleanly 2013-11-21 16:42:27 -08:00
bluetooth Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth 2013-11-05 15:58:21 -05:00
bus Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm 2013-11-14 08:51:29 +09:00
cdrom
char Merge branch 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2013-11-21 19:46:00 -08:00
clk Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2013-11-15 16:47:22 -08:00
clocksource
connector connector: improved unaligned access error fix 2013-11-14 17:19:20 -05:00
cpufreq More ACPI and power management updates for 3.13-rc1 2013-11-20 13:25:04 -08:00
cpuidle ACPI and power management updates for 3.13-rc1 2013-11-14 13:41:48 +09:00
crypto tree-wide: use reinit_completion instead of INIT_COMPLETION 2013-11-15 09:32:21 +09:00
dca
devfreq Merge branch 'pm-devfreq' 2013-11-07 19:24:20 +01:00
dio
dma Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma 2013-11-20 13:20:24 -08:00
edac Merge branch 'linux_next' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-edac 2013-11-18 14:51:52 -08:00
eisa
extcon
firewire tree-wide: use reinit_completion instead of INIT_COMPLETION 2013-11-15 09:32:21 +09:00
firmware Merge branch 'for-linus-dma-masks' of git://git.linaro.org/people/rmk/linux-arm 2013-11-14 07:55:21 +09:00
fmc
gpio ACPI / driver core: Store an ACPI device pointer in struct acpi_dev_node 2013-11-14 23:14:43 +01:00
gpu drm/sysfs: fix hotplug regression since lifetime changes 2013-11-21 21:10:00 +10:00
hid More ACPI and power management updates for 3.13-rc1 2013-11-20 13:25:04 -08:00
hsi
hv
hwmon hwmon: (acpi_power_meter) Fix acpi_bus_get_device() return value check 2013-11-20 08:31:01 -08:00
hwspinlock
i2c More ACPI and power management updates for 3.13-rc1 2013-11-20 13:25:04 -08:00
ide More ACPI and power management updates for 3.13-rc1 2013-11-20 13:25:04 -08:00
idle Merge branch 'pm-cpuidle' 2013-11-19 01:06:28 +01:00
iio kfifo API type safety 2013-11-15 09:32:23 +09:00
infiniband Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2013-11-22 10:52:03 -08:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid 2013-11-15 16:48:22 -08:00
iommu Don't try to compile shmobile-iommu outside of ARM 2013-11-15 18:57:42 -08:00
ipack
irqchip Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm 2013-11-14 08:51:29 +09:00
isdn net: rework recvmsg handler msg_name and msg_namelen logic 2013-11-20 21:52:30 -05:00
leds
lguest x86, asmlinkage, lguest: Pass in globals into assembler statement 2013-11-07 12:13:05 +10:30
macintosh DeviceTree updates for 3.13. This is a bit larger pull request than 2013-11-12 16:52:17 +09:00
mailbox
md md update for 3.13. 2013-11-20 13:05:25 -08:00
media Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma 2013-11-20 13:20:24 -08:00
memory
memstick tree-wide: use reinit_completion instead of INIT_COMPLETION 2013-11-15 09:32:21 +09:00
message drivers/message/i2o/driver.c: add missing destroy_workqueue() on error in i2o_driver_register() 2013-11-13 12:09:26 +09:00
mfd Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2013-11-15 16:47:22 -08:00
misc Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma 2013-11-20 13:20:24 -08:00
mmc More ACPI and power management updates for 3.13-rc1 2013-11-20 13:25:04 -08:00
mtd Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma 2013-11-20 13:20:24 -08:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-11-22 09:57:35 -08:00
nfc
ntb dmaengine: remove DMA unmap flags 2013-11-14 11:04:38 -08:00
nubus
of Merge branch 'for-linus-dma-masks' of git://git.linaro.org/people/rmk/linux-arm 2013-11-14 07:55:21 +09:00
oprofile
parisc
parport Kconfig cleanups for v3.13 2013-11-15 14:05:15 -08:00
pci PCI updates for v3.13: 2013-11-22 10:53:47 -08:00
pcmcia DeviceTree updates for 3.13. This is a bit larger pull request than 2013-11-12 16:52:17 +09:00
phy
pinctrl pinctrl: single: call pcs_soc->rearm() whenever IRQ mask is changed 2013-11-14 10:43:17 -08:00
platform More ACPI and power management updates for 3.13-rc1 2013-11-20 13:25:04 -08:00
pnp ACPI: Eliminate the DEVICE_ACPI_HANDLE() macro 2013-11-14 23:17:21 +01:00
power Highlights: 2013-11-18 15:35:09 -08:00
powercap PowerCap: Fix build error with option -Werror=format-security 2013-11-05 02:36:57 +01:00
pps drivers/pps/clients/pps-gpio.c: remove redundant of_match_ptr 2013-11-13 12:09:35 +09:00
ps3
ptp
pwm pwm: samsung: Fix kernel warning while unexporting a channel 2013-11-01 11:17:57 +01:00
rapidio
regulator Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2013-11-15 16:47:22 -08:00
remoteproc
reset
rpmsg
rtc ARM: drivers/rtc/rtc-at91rm9200.c: disable interrupts at shutdown 2013-11-21 16:42:27 -08:00
s390 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2013-11-19 11:43:21 -08:00
sbus
scsi Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2013-11-22 10:52:03 -08:00
sfi
sh
sn
spi More ACPI and power management updates for 3.13-rc1 2013-11-20 13:25:04 -08:00
ssb
staging Merge branch 'topic/kbuild-fixes-for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media 2013-11-18 15:10:05 -08:00
target Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2013-11-22 10:52:03 -08:00
tc
thermal Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-11-19 15:50:47 -08:00
tty Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma 2013-11-20 13:20:24 -08:00
uio drivers/uio/uio_pruss.c: use gen_pool_dma_alloc() to allocate sram memory 2013-11-13 12:09:23 +09:00
usb Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2013-11-22 10:52:03 -08:00
uwb Driver Core / sysfs patches for 3.13-rc1 2013-11-07 11:42:15 +09:00
vfio
vhost Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2013-11-22 10:52:03 -08:00
video ARM: SoC fixes for 3.13 merge window 2013-11-16 12:45:55 -08:00
virt
virtio Nothing really exciting: some groundwork for changing virtio endian, and 2013-11-15 13:28:47 +09:00
vlynq
vme
w1 drivers/w1/masters/w1-gpio.c: use dev_get_platdata() 2013-11-15 09:32:21 +09:00
watchdog watchdog: w83627hf: Use helper functions to access superio registers 2013-11-18 21:34:19 +01:00
xen More ACPI and power management updates for 3.13-rc1 2013-11-20 13:25:04 -08:00
zorro
Kconfig ACPI and power management updates for 3.13-rc1 2013-11-14 13:41:48 +09:00
Makefile ACPI and power management updates for 3.13-rc1 2013-11-14 13:41:48 +09:00