Adding acpi_get_dma_attr() to query DMA attributes of ACPI devices.
It returns the enum dev_dma_attr, which communicates DMA information
more clearly. This API replaces the acpi_check_dma(), which will be
removed in subsequent patch.
This patch also provides a convenient function, acpi_dma_supported(),
to check DMA support of the specified ACPI device.
Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
A device could have one of the following DMA attributes:
* DMA not supported
* DMA non-coherent
* DMA coherent
So, this patch introduces enum dev_dma_attribute. This will be used by
new APIs introduced in later patches.
Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
ACPI configurations can now mark devices as noncoherent,
support that choice.
NOTE: This is required to support USB on ARM Juno Development Board.
Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
The correct scope for looking up the objects to generate data packages for
data-only subnodes pointed to by another data-only subnode is the scope
of the parent of that subnode and not the scope containing the _DSD object
at the top of the hierarchy (the latter works only if all of the objects
returning data-only subnode packages in a given hierarchy are in the same
scope).
Fix the code to work as expected.
Fixes: 445b0eb058 (ACPI / property: Add support for data-only subnodes)
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Tested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Use common interface to simplify PCI host bridge implementation.
Tested-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Use common interface to simplify ACPI PCI host bridge implementation.
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reset acpi_root_dev->domain to 0 when pci_ignore_seg is set to keep
consistence between ACPI PCI root device and PCI host bridge device.
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Introduce common interface acpi_pci_root_create() and related data
structures to create PCI root bus for ACPI PCI host bridges. It will
be used to kill duplicated arch specific code for IA64 and x86. It may
also help ARM64 in future.
Reviewed-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Tested-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Use common struct resource_entry to replace private
struct iospace_resource.
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Use common ACPI resource parsing interface to parse ACPI resources for
PCI host bridge, so we could share more code between IA64 and x86.
Later we will consolidate arch specific implementations into ACPI core.
Tested-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Enhance ACPI resource parsing interfaces to support sparse IO space,
which will be used to share common code between x86 and IA64 later.
Tested-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Pull scheduler fix from Thomas Gleixner:
"Fix a long standing state race in finish_task_switch()"
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/core: Fix TASK_DEAD race in finish_task_switch()
Pull perf fix from Thomas Glexiner:
"Fix build breakage on powerpc in perf tools"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf tools: Fix build break on powerpc due to sample_reg_masks
Pull maintainer email update from Thomas Gleixner:
"Change Matt Fleming's email address in the maintainers file"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
MAINTAINERS: Change Matt Fleming's email address
Pull irq fixes from Thomas Gleixner:
"Three trivial commits:
- Fix a kerneldoc regression
- Export handle_bad_irq to unbreak a driver in next
- Add an accessor for the of_node field so refactoring in next does
not depend on merge ordering"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqdomain: Add an accessor for the of_node field
genirq: Fix handle_bad_irq kerneldoc comment
genirq: Export handle_bad_irq
This is a set of three bug fixes, two of which are regressions from recent
updates (the 3ware one from 4.1 and the device handler fixes from 4.2).
Signed-off-by: James Bottomley <JBottomley@Odin.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"This is a set of three bug fixes, two of which are regressions from
recent updates (the 3ware one from 4.1 and the device handler fixes
from 4.2)"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
3w-9xxx: don't unmap bounce buffered commands
scsi_dh: Use the correct module name when loading device handler
libiscsi: Fix iscsi_check_transport_timeouts possible infinite loop
Very careless bug earler in 4.3-rc, now fixed :-)
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Merge tag 'md/4.3-rc4-fix' of git://neil.brown.name/md
Pull md bugfix from Neil Brown:
"One bug fix for raid1/raid10.
Very careless bug earler in 4.3-rc, now fixed :-)"
* tag 'md/4.3-rc4-fix' of git://neil.brown.name/md:
crash in md-raid1 and md-raid10 due to incorrect list manipulation
My Intel email address will soon expire. Replace it with my
personal address so people still know where to send patches.
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1444494136-10333-1-git-send-email-matt@codeblueprint.co.uk
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Here are some small USB and PHY fixes and quirk updates for 4.3-rc5.
Nothing major here, full details in the shortlog, and all of these have
been in linux-next for a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are some small USB and PHY fixes and quirk updates for 4.3-rc5.
Nothing major here, full details in the shortlog, and all of these
have been in linux-next for a while"
* tag 'usb-4.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
usb: Add device quirk for Logitech PTZ cameras
USB: chaoskey read offset bug
USB: Add reset-resume quirk for two Plantronics usb headphones.
usb: renesas_usbhs: Add support for R-Car H3
usb: renesas_usbhs: fix build warning if 64-bit architecture
usb: gadget: bdc: fix memory leak
phy: berlin-sata: Fix module autoload for OF platform driver
phy: rockchip-usb: power down phy when rockchip phy probe
phy: qcom-ufs: fix build error when the component is built as a module
Here are a few bug fixes for the tty core that resolve reported issues,
and some serial driver fixes as well (including the much-reported imx
driver problem.)
All of these have been in linux-next with no reported problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-4.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial driver fixes from Greg KH:
"Here are a few bug fixes for the tty core that resolve reported
issues, and some serial driver fixes as well (including the
much-reported imx driver problem)
All of these have been in linux-next with no reported problems"
* tag 'tty-4.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
drivers/tty: require read access for controlling terminal
serial: 8250: add uart_config entry for PORT_RT2880
tty: fix data race on tty_buffer.commit
tty: fix data race in tty_buffer_flush
tty: fix data race in flush_to_ldisc
tty: fix stall caused by missing memory barrier in drivers/tty/n_tty.c
serial: atmel: fix error path of probe function
tty: don't leak cdev in tty_cdev_add()
Revert "serial: imx: remove unbalanced clk_prepare"
Here are two tiny staging tree fixes for 4.3-rc5.
One fixes the broken speakup subsystem as reported by a user, and the
other removes an entry in the MAINTAINERS file for a developer that
doesn't want to be listed anymore.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-4.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging fixes from Greg KH:
"Here are two tiny staging tree fixes for 4.3-rc5.
One fixes the broken speakup subsystem as reported by a user, and the
other removes an entry in the MAINTAINERS file for a developer that
doesn't want to be listed anymore"
* tag 'staging-4.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
staging: speakup: fix speakup-r regression
MAINTAINERS: Remove myself as nvec co-maintainer
Here are some small fixes for some misc drivers that resolve some
reported issues. All of these have been linux-next for a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-4.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Here are some small fixes for some misc drivers that resolve some
reported issues. All of these have been linux-next for a while"
* tag 'char-misc-4.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
mcb: Fix error handling in mcb_pci_probe()
mei: hbm: fix error in state check logic
nvmem: sunxi: Check for memory allocation failure
nvmem: core: Fix memory leak in nvmem_cell_write
nvmem: core: Handle shift bits in-place if cell->nbits is non-zero
nvmem: core: fix the out-of-range leak in read/write()
Pull MIPS fixes from Ralf Baechle:
- MIPS didn't define the new ioremap_uc. Defined it as an alias for
ioremap_uncached.
- Replace workaround for MIPS16 build issue with a correct one.
* git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
MIPS: Define ioremap_uc
MIPS: UAPI: Ignore __arch_swab{16,32,64} when using MIPS16
Revert "MIPS: UAPI: Fix unrecognized opcode WSBH/DSBH/DSHD when using MIPS16."
Pull swiotlb fixlet from Konrad Rzeszutek Wilk:
"Enable the SWIOTLB under 32-bit PAE kernels.
Nowadays most distros enable this due to CONFIG_HYPERVISOR|XEN=y which
select SWIOTLB. But for those that are not interested in
virtualization and wanting to use 32-bit PAE kernels and wanting to
have working DMA operations - this configures it for them"
* 'stable/for-linus-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb:
swiotlb: Enable it under x86 PAE
Leandro Awa writes:
"After switching to version 4.1.6, our parallelized and distributed
workflows now fail consistently with errors of the form:
T34: ./regex.c:39:22: error: config.h: No such file or directory
From our 'git bisect' testing, the following commit appears to be the
possible cause of the behavior we've been seeing: commit 766c4cbfacd8"
Al Viro says:
"What happens is that 766c4cbfac got the things subtly wrong.
We used to treat d_is_negative() after lookup_fast() as "fall with
ENOENT". That was wrong - checking ->d_flags outside of ->d_seq
protection is unreliable and failing with hard error on what should've
fallen back to non-RCU pathname resolution is a bug.
Unfortunately, we'd pulled the test too far up and ran afoul of
another kind of staleness. The dentry might have been absolutely
stable from the RCU point of view (and we might be on UP, etc), but
stale from the remote fs point of view. If ->d_revalidate() returns
"it's actually stale", dentry gets thrown away and the original code
wouldn't even have looked at its ->d_flags.
What we need is to check ->d_flags where 766c4cbfac does (prior to
->d_seq validation) but only use the result in cases where we do not
discard this dentry outright"
Reported-by: Leandro Awa <lawa@nvidia.com>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=104911
Fixes: 766c4cbfac ("namei: d_is_negative() should be checked...")
Tested-by: Leandro Awa <lawa@nvidia.com>
Cc: stable@vger.kernel.org # v4.1+
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
- Two fixes for cpufreq regressions, an acpi-cpufreq driver one
introduced during the 4.2 cycle when we started to preserve
cpufreq directories for offline CPUs and a general one
introduced recently (Srinivas Pandruvada).
- Two devfreq fixes, one for a double kfree() in an error code
path and one for a confusing sysfs-related failure (Geliang Tang,
Tobias Jakobi).
/
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Merge tag 'pm+acpi-4.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management and ACPI fixes from Rafael Wysocki:
"These are four fixes for bugs in the devfreq and cpufreq subsystems,
including two regression fixes (one for a recent regression and one
for a problem introduced in 4.2).
Specifics:
- Two fixes for cpufreq regressions, an acpi-cpufreq driver one
introduced during the 4.2 cycle when we started to preserve cpufreq
directories for offline CPUs and a general one introduced recently
(Srinivas Pandruvada).
- Two devfreq fixes, one for a double kfree() in an error code path
and one for a confusing sysfs-related failure (Geliang Tang, Tobias
Jakobi)"
* tag 'pm+acpi-4.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpufreq: prevent lockup on reading scaling_available_frequencies
cpufreq: acpi_cpufreq: prevent crash on reading freqdomain_cpus
PM / devfreq: fix double kfree
PM / devfreq: Fix governor_store()
Pull strscpy powerpc fix from Chris Metcalf.
Fix powerpc big-endian build.
* 'strscpy' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
arch/powerpc: provide zero_bytemask() for big-endian
We see various small fixes, but nothing looks too scary, all are
small gentle bug fixes:
- Most of changes are for ASoC codecs: Realtek, SGTL5000, TAS2552,
TLV320, WM8962
- A couple of dwc and imx-ssi fixes
- Usual oneliner HD-audio quirks
- An old emux synth code fix
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Merge tag 'sound-4.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"We see various small fixes, but nothing looks too scary, all are small
gentle bug fixes:
- Most of changes are for ASoC codecs: Realtek, SGTL5000, TAS2552,
TLV320, WM8962
- A couple of dwc and imx-ssi fixes
- Usual oneliner HD-audio quirks
- An old emux synth code fix"
* tag 'sound-4.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
MAINTAINERS: Remove wm97xx entry
ASoC: tas2552: fix dBscale-min declaration
ALSA: synth: Fix conflicting OSS device registration on AWE32
ALSA: hda - Disable power_save_node for IDT 92HD73xx chips
ALSA: hda - Apply SPDIF pin ctl to MacBookPro 12,1
ALSA: hda: Add dock support for ThinkPad T550
ASoC: dwc: fix dma stop transferring issue
ASoC: dwc: correct irq clear method
ASoC: tlv320aic3x: Prevent writing reserved registers on tlv320aic3104 CODECs
ASoC: rt5645: Correct the naming and setting of ADC Boost Volume Control
ASoC: sgtl5000: fix wrong register MIC_BIAS_VOLTAGE setup on probe
ASoC: wm8962: balance pm_runtime_enable
ASoC: imx-ssi: Fix DAI hardware signal inversions
ASoC: sgtl5000: fix error message output for MicBias voltage
ASoC: db1200: Fix DAI link format for db1300 and db1550
- DM core AB-BA deadlock fix in the device destruction path (vs device
creation's DM table swap).
- DM raid fix to properly round up the region_size to the next
power-of-2.
- DM cache fix for a NULL pointer seen while switching from the
"cleaner" cache policy.
2 fixes for regressions introduced during the 4.3 merge:
- request-based DM error propagation regressed due to incorrect
changes introduced when adding the bi_error field to bio.
- DM snapshot fix to only support snapshots that overflow if the client
(e.g. lvm2) is prepared to deal with the associated snapshot status
interface change.
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Merge tag 'dm-4.3-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull dm fixes from Mike Snitzer:
"Three stable fixes:
- DM core AB-BA deadlock fix in the device destruction path (vs
device creation's DM table swap).
- DM raid fix to properly round up the region_size to the next
power-of-2.
- DM cache fix for a NULL pointer seen while switching from the
"cleaner" cache policy.
Two fixes for regressions introduced during the 4.3 merge:
- request-based DM error propagation regressed due to incorrect
changes introduced when adding the bi_error field to bio.
- DM snapshot fix to only support snapshots that overflow if the
client (e.g. lvm2) is prepared to deal with the associated
snapshot status interface change"
* tag 'dm-4.3-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm snapshot: add new persistent store option to support overflow
dm cache: fix NULL pointer when switching from cleaner policy
dm: fix request-based dm error reporting
dm raid: fix round up of default region size
dm: fix AB-BA deadlock in __dm_destroy()
Pull btrfs fixes from Chris Mason:
"These are small and assorted. Neil's is the oldest, I dropped the
ball thinking he was going to send it in"
* 'for-linus-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
Btrfs: support NFSv2 export
Btrfs: open_ctree: Fix possible memory leak
Btrfs: fix deadlock when finalizing block group creation
Btrfs: update fix for read corruption of compressed and shared extents
Btrfs: send, fix corner case for reference overwrite detection
The fixes for this week include one small patch that was years in the
making and that finally fixes using all eight CPUs on exynos542x.
The rest are lots of minor changes for sunxi, imx, exynos and shmobile
* fixing the minimum voltage for Allwinner A20
* thermal boot issue on SMDK5250.
* invalid clock used for FIMD IOMMU.
* audio on Renesas r8a7790/r8a7791
* invalid clock used for FIMD IOMMU
* LEDs on exynos5422-odroidxu3-common
* usb pin control for imx-rex
* imx53: fix PMIC interrupt level
* a Makefile typo
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Arnd Bergmann:
"The fixes for this week include one small patch that was years in the
making and that finally fixes using all eight CPUs on exynos542x.
The rest are lots of minor changes for sunxi, imx, exynos and shmobile
- fixing the minimum voltage for Allwinner A20
- thermal boot issue on SMDK5250.
- invalid clock used for FIMD IOMMU.
- audio on Renesas r8a7790/r8a7791
- invalid clock used for FIMD IOMMU
- LEDs on exynos5422-odroidxu3-common
- usb pin control for imx-rex
- imx53: fix PMIC interrupt level
- a Makefile typo"
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: dts: Fix wrong clock binding for sysmmu_fimd1_1 on exynos5420
ARM: dts: Fix bootup thermal issue on smdk5250
ARM: shmobile: r8a7791 dtsi: Add CPG/MSTP Clock Domain for sound
ARM: shmobile: r8a7790 dtsi: Add CPG/MSTP Clock Domain for sound
arm-cci500: Don't enable PMU driver by default
ARM: dts: fix usb pin control for imx-rex dts
ARM: imx53: qsrb: fix PMIC interrupt level
ARM: imx53: include IRQ dt-bindings header
ARM: dts: add suspend opp to exynos4412
ARM: dts: Fix LEDs on exynos5422-odroidxu3
ARM: EXYNOS: reset Little cores when cpu is up
ARM: dts: Fix Makefile target for sun4i-a10-itead-iteaduino-plus
ARM: dts: sunxi: Raise minimum CPU voltage for sun7i-a20 to meet SoC specifications
Commit 76c44f6d80 introduced the possibly for "Overflow" to be reported
by the snapshot device's status. Older userspace (e.g. lvm2) does not
handle the "Overflow" status response.
Fix this incompatibility by requiring newer userspace code, that can
cope with "Overflow", request the persistent store with overflow support
by using "PO" (Persistent with Overflow) for the snapshot store type.
Reported-by: Zdenek Kabelac <zkabelac@redhat.com>
Fixes: 76c44f6d80 ("dm snapshot: don't invalidate on-disk image on snapshot write overflow")
Reviewed-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
As we're about to remove the of_node field from the irqdomain
structure, introduce an accessor for it. Subsequent patches
will take care of the actual repainting.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Link: http://lkml.kernel.org/r/1444402211-1141-1-git-send-email-marc.zyngier@arm.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
A recent cleanup removed the 'irq' parameter from many functions, but
left the documentation for this in place for at least one function.
This removes it.
Fixes: bd0b9ac405 ("genirq: Remove irq argument from irq flow handlers")
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Grygorii Strashko <grygorii.strashko@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: kbuild-all@01.org
Cc: Austin Schuh <austin@peloton-tech.com>
Cc: Santosh Shilimkar <ssantosh@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lkml.kernel.org/r/5400000.cD19rmgWjV@wuerfel
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
A cleanup of the omap gpio driver introduced a use of the
handle_bad_irq() function in a device driver that can be
a loadable module.
This broke the ARM allmodconfig build:
ERROR: "handle_bad_irq" [drivers/gpio/gpio-omap.ko] undefined!
This patch exports the handle_bad_irq symbol in order to
allow the use in modules.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Grygorii Strashko <grygorii.strashko@ti.com>
Cc: Santosh Shilimkar <ssantosh@kernel.org>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Austin Schuh <austin@peloton-tech.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lkml.kernel.org/r/5847725.4IBopItaOr@wuerfel
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
The cleaner policy doesn't make use of the per cache block hint space in
the metadata (unlike the other policies). When switching from the
cleaner policy to mq or smq a NULL pointer crash (in dm_tm_new_block)
was observed. The crash was caused by bugs in dm-cache-metadata.c
when trying to skip creation of the hint btree.
The minimal fix is to change hint size for the cleaner policy to 4 bytes
(only hint size supported).
Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@vger.kernel.org
The commit 55ce74d4bf (md/raid1: ensure
device failure recorded before write request returns) is causing crash in
the LVM2 testsuite test shell/lvchange-raid.sh. For me the crash is 100%
reproducible.
The reason for the crash is that the newly added code in raid1d moves the
list from conf->bio_end_io_list to tmp, then tests if tmp is non-empty and
then incorrectly pops the bio from conf->bio_end_io_list (which is empty
because the list was alrady moved).
Raid-10 has a similar bug.
Kernel Fault: Code=15 regs=000000006ccb8640 (Addr=0000000100000000)
CPU: 3 PID: 1930 Comm: mdX_raid1 Not tainted 4.2.0-rc5-bisect+ #35
task: 000000006cc1f258 ti: 000000006ccb8000 task.ti: 000000006ccb8000
YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001111111000001111 Not tainted
r00-03 000000ff0804fe0f 000000001059d000 000000001059f818 000000007f16be38
r04-07 000000001059d000 000000007f16be08 0000000000200200 0000000000000001
r08-11 000000006ccb8260 000000007b7934d0 0000000000000001 0000000000000000
r12-15 000000004056f320 0000000000000000 0000000000013dd0 0000000000000000
r16-19 00000000f0d00ae0 0000000000000000 0000000000000000 0000000000000001
r20-23 000000000800000f 0000000042200390 0000000000000000 0000000000000000
r24-27 0000000000000001 000000000800000f 000000007f16be08 000000001059d000
r28-31 0000000100000000 000000006ccb8560 000000006ccb8640 0000000000000000
sr00-03 0000000000249800 0000000000000000 0000000000000000 0000000000249800
sr04-07 0000000000000000 0000000000000000 0000000000000000 0000000000000000
IASQ: 0000000000000000 0000000000000000 IAOQ: 000000001059f61c 000000001059f620
IIR: 0f8010c6 ISR: 0000000000000000 IOR: 0000000100000000
CPU: 3 CR30: 000000006ccb8000 CR31: 0000000000000000
ORIG_R28: 000000001059d000
IAOQ[0]: call_bio_endio+0x34/0x1a8 [raid1]
IAOQ[1]: call_bio_endio+0x38/0x1a8 [raid1]
RP(r2): raid_end_bio_io+0x88/0x168 [raid1]
Backtrace:
[<000000001059f818>] raid_end_bio_io+0x88/0x168 [raid1]
[<00000000105a4f64>] raid1d+0x144/0x1640 [raid1]
[<000000004017fd5c>] kthread+0x144/0x160
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Fixes: 55ce74d4bf ("md/raid1: ensure device failure recorded before write request returns.")
Fixes: 95af587e95 ("md/raid10: ensure device failure recorded before write request returns.")
Signed-off-by: NeilBrown <neilb@suse.com>
When scaling_available_frequencies is read on an offlined cpu, then
either lockup or junk values are displayed. This is caused by
freed freq_table, which policy is using.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
The Atmel sdhci device needs the
SDHCI_QUIRK2_NEED_DELAY_AFTER_INT_CLK_RST quirk. Without it, the
internal clock could never stabilised when changing the sd clock
frequency.
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
The Atmel sdhci device needs a new quirk. sdhci_set_clock set the Clock
Control Register to 0 before computing the new value and writing it.
It disables the internal clock which causes a reset mecanism. If we
write the new value before this reset mecanism is done, it will prevent
the stabilisation of the internal clock, so a delay is needed. This
delay is about 2-3 cycles of the base clock. To be safe, a 1 ms delay is
used.
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
In case of armada_38x_quirks error, all clocks should be cleaned-up, same
as after mv_conf_mbus_windows failure.
Signed-off-by: Marcin Wojtas <mw@semihalf.com>
Cc: <stable@vger.kernel.org> # v4.2
Reviewed-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
According to 'FE-2946959' erratum the clock inversion option is
needed to support slow frequencies when the card input hold time
requirement is high. This setting is not required for high speed
MMC and might cause timing violation.
Signed-off-by: Nadav Haklai <nadavh@marvell.com>
Cc: <stable@vger.kernel.org> # v4.2
Reviewed-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
shci-pxav3 driver is enabling by default the
SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN quirk. However this quirk is not
required for Armada 38x and leads to wrong clock setting in the divider.
Signed-off-by: Nadav Haklai <nadavh@marvell.com>
Signed-off-by: Marcin Wojtas <mw@semihalf.com>
Cc: <stable@vger.kernel.org> # v4.2
Reviewed-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Suthikulpanit, Suravee