Pull input subsystem updates from Dmitry Torokhov:
"Two new drivers for Elan hardware (for I2C touchpad and touchscreen
found in several Chromebooks and other devices), a driver for Goodix
touch panel, and small fixes to Cypress I2C trackpad and other input
drivers.
Also we switched to use __maybe_unused instead of gating suspend/
resume code with #ifdef guards to get better compile coverage"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (27 commits)
Input: gpio_keys - fix warning regarding uninitialized 'button' variable
Input: add support for Elan eKTH I2C touchscreens
Input: gpio_keys - fix warning regarding uninitialized 'irq' variable
Input: cyapa - use 'error' for error codes
Input: cyapa - fix resuming the device
Input: gpio_keys - add device tree support for interrupt only keys
Input: amikbd - allocate temporary keymap buffer on the stack
Input: amikbd - fix build if !CONFIG_HW_CONSOLE
Input: lm8323 - missing error check in lm8323_set_disable()
Input: initialize device counter variables with -1
Input: initialize input_no to -1 to avoid subtraction
Input: i8042 - do not try to load on Intel NUC D54250WYK
Input: atkbd - correct MSC_SCAN events for force_release keys
Input: cyapa - switch to using managed resources
Input: lifebook - use "static inline" instead of "inline" in lifebook.h
Input: touchscreen - use __maybe_unused instead of ifdef around suspend/resume
Input: mouse - use __maybe_unused instead of ifdef around suspend/resume
Input: misc - use __maybe_unused instead of ifdef around suspend/resume
Input: cap11xx - support for irq-active-high option
Input: cap11xx - add support for various cap11xx devices
...
* Add device tree support for DoC3
* SPI NOR:
Refactoring, for better layering between spi-nor.c and its driver users
(e.g., m25p80.c)
New flash device support
Support 6-byte ID strings
* NAND
New NAND driver for Allwinner SoC's (sunxi)
GPMI NAND: add support for raw (no ECC) access, for testing purposes
Add ATO manufacturer ID
A few odd driver fixes
* MTD tests:
Allow testers to compensate for OOB bitflips in oobtest
Fix a torturetest regression
* nandsim: Support longer ID byte strings
And more.
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Merge tag 'for-linus-20141215' of git://git.infradead.org/linux-mtd
Pull MTD updates from Brian Norris:
"Summary:
- Add device tree support for DoC3
- SPI NOR:
Refactoring, for better layering between spi-nor.c and its
driver users (e.g., m25p80.c)
New flash device support
Support 6-byte ID strings
- NAND:
New NAND driver for Allwinner SoC's (sunxi)
GPMI NAND: add support for raw (no ECC) access, for testing
purposes
Add ATO manufacturer ID
A few odd driver fixes
- MTD tests:
Allow testers to compensate for OOB bitflips in oobtest
Fix a torturetest regression
- nandsim: Support longer ID byte strings
And more"
* tag 'for-linus-20141215' of git://git.infradead.org/linux-mtd: (63 commits)
mtd: tests: abort torturetest on erase errors
mtd: physmap_of: fix potential NULL dereference
mtd: spi-nor: allow NULL as chip name and try to auto detect it
mtd: nand: gpmi: add raw oob access functions
mtd: nand: gpmi: add proper raw access support
mtd: nand: gpmi: add gpmi_copy_bits function
mtd: spi-nor: factor out write_enable() for erase commands
mtd: spi-nor: add support for s25fl128s
mtd: spi-nor: remove the jedec_id/ext_id
mtd: spi-nor: add id/id_len for flash_info{}
mtd: nand: correct the comment of function nand_block_isreserved()
jffs2: Drop bogus if in comment
mtd: atmel_nand: replace memcpy32_toio/memcpy32_fromio with memcpy
mtd: cafe_nand: drop duplicate .write_page implementation
mtd: m25p80: Add support for serial flash Spansion S25FL132K
MTD: m25p80: fix inconsistency in m25p_ids compared to spi_nor_ids
mtd: spi-nor: improve wait-till-ready timeout loop
mtd: delete unnecessary checks before two function calls
mtd: nand: omap: Fix NAND enumeration on 3430 LDP
mtd: nand: add ATO manufacturer info
...
Pull nfsd updates from Bruce Fields:
"A comparatively quieter cycle for nfsd this time, but still with two
larger changes:
- RPC server scalability improvements from Jeff Layton (using RCU
instead of a spinlock to find idle threads).
- server-side NFSv4.2 ALLOCATE/DEALLOCATE support from Anna
Schumaker, enabling fallocate on new clients"
* 'for-3.19' of git://linux-nfs.org/~bfields/linux: (32 commits)
nfsd4: fix xdr4 count of server in fs_location4
nfsd4: fix xdr4 inclusion of escaped char
sunrpc/cache: convert to use string_escape_str()
sunrpc: only call test_bit once in svc_xprt_received
fs: nfsd: Fix signedness bug in compare_blob
sunrpc: add some tracepoints around enqueue and dequeue of svc_xprt
sunrpc: convert to lockless lookup of queued server threads
sunrpc: fix potential races in pool_stats collection
sunrpc: add a rcu_head to svc_rqst and use kfree_rcu to free it
sunrpc: require svc_create callers to pass in meaningful shutdown routine
sunrpc: have svc_wake_up only deal with pool 0
sunrpc: convert sp_task_pending flag to use atomic bitops
sunrpc: move rq_cachetype field to better optimize space
sunrpc: move rq_splice_ok flag into rq_flags
sunrpc: move rq_dropme flag into rq_flags
sunrpc: move rq_usedeferral flag to rq_flags
sunrpc: move rq_local field to rq_flags
sunrpc: add a generic rq_flags field to svc_rqst and move rq_secure to it
nfsd: minor off by one checks in __write_versions()
sunrpc: release svc_pool_map reference when serv allocation fails
...
The iomm-config branch contains work from Will Deacon, quoting his description:
This series adds automatic IOMMU and DMA-mapping configuration for
OF-based DMA masters described using the generic IOMMU devicetree
bindings. Although there is plenty of future work around splitting up
iommu_ops, adding default IOMMU domains and sorting out automatic IOMMU
group creation for the platform_bus, this is already useful enough for
people to port over their IOMMU drivers and start using the new probing
infrastructure (indeed, Marek has patches queued for the Exynos IOMMU).
The branch touches core ARM and IOMMU driver files, and the respective
maintainers (Russell King and Joerg Roedel) agreed to have the contents
merged through the arm-soc tree. The final version was ready just before
the merge window, so we ended up delaying it a bit longer than the rest,
but we don't expect to see regressions because this is just additional
infrastructure that will get used in drivers starting in 3.20 but is
unused so far.
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Merge tag 'iommu-config-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC/iommu configuration update from Arnd Bergmann:
"The iomm-config branch contains work from Will Deacon, quoting his
description:
This series adds automatic IOMMU and DMA-mapping configuration for
OF-based DMA masters described using the generic IOMMU devicetree
bindings. Although there is plenty of future work around splitting up
iommu_ops, adding default IOMMU domains and sorting out automatic IOMMU
group creation for the platform_bus, this is already useful enough for
people to port over their IOMMU drivers and start using the new probing
infrastructure (indeed, Marek has patches queued for the Exynos IOMMU).
The branch touches core ARM and IOMMU driver files, and the respective
maintainers (Russell King and Joerg Roedel) agreed to have the
contents merged through the arm-soc tree.
The final version was ready just before the merge window, so we ended
up delaying it a bit longer than the rest, but we don't expect to see
regressions because this is just additional infrastructure that will
get used in drivers starting in 3.20 but is unused so far"
* tag 'iommu-config-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
iommu: store DT-probed IOMMU data privately
arm: dma-mapping: plumb our iommu mapping ops into arch_setup_dma_ops
arm: call iommu_init before of_platform_populate
dma-mapping: detect and configure IOMMU in of_dma_configure
iommu: fix initialization without 'add_device' callback
iommu: provide helper function to configure an IOMMU for an of master
iommu: add new iommu_ops callback for adding an OF device
dma-mapping: replace set_arch_dma_coherent_ops with arch_setup_dma_ops
iommu: provide early initialisation hook for IOMMU drivers
Here are the first arm-soc bug fixes. Most of these are OMAP related
fixes for regressions or minor bugs. Aside from that, there are a
few defconfig changes for various platforms.
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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:
"Here are the first arm-soc bug fixes. Most of these are OMAP related
fixes for regressions or minor bugs. Aside from that, there are a few
defconfig changes for various platforms"
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
iommu/exynos: Fix arm64 allmodconfig build
ARM: defconfigs: use CONFIG_CPUFREQ_DT
ARM: omap2plus_defconfig: Enable AHCI_PLATFORM driver
ARM: dts: am437x-sk-evm.dts: fix LCD timings
ARM: dts: dra7-evm: Update SMPS7 (VDD_CORE) max voltage to match DM
ARM: dts: dra7-evm: Fix typo in SMPS6 (VDD_GPU) max voltage
ARM: OMAP2+: AM43x: Add ID for ES1.2
ARM: dts: am437x-sk: fix lcd enable pin mux data
ARM: dts: Fix gpmc regression for omap 2430sdp smc91x
Revert "ARM: shmobile: multiplatform: add Audo DMAC peri peri support on defconfig"
ARM: dts: dra7: fix DSS PLL clock mux registers
ARM: dts: DRA7: wdt: Fix compatible property for watchdog node
ARM: OMAP2+: clock: remove unused function prototype
The Exynos IOMMU driver uses the ARM specific dmac_flush_range() and
outer_flush_range() functions. This breaks the build on arm64 allmodconfig
in -next since support has been merged for some Exynos ARMv8 SoCs. Add a
dependency on ARM to keep things building until either the driver has the
ARM dependencies removed or the ARMv8 architecture code implements these
ARM specific APIs.
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Pull LED subsystem update from Bryan Wu:
"We got some cleanup and driver for LP8860 as well as some patches for
LED Flash Class"
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds:
leds: lp8860: Fix module dependency
leds: lp8860: Introduce TI lp8860 4 channel LED driver
leds: Add support for setting brightness in a synchronous way
leds: implement sysfs interface locking mechanism
leds: syscon: handle multiple syscon instances
leds: delete copy/paste mistake
leds: regulator: Convert to devm_regulator_get_exclusive
Here's the big staging tree pull request for 3.19-rc1.
We continued to delete more lines than were added, always a good thing,
but not at a huge rate this release, only about 70k lines removed
overall mostly from removing the horrid bcm driver.
Lots of normal staging driver cleanups and fixes all over the place,
well over a thousand of them, the shortlog shows all the horrid details.
The "contentious" thing here is the movement of the Android binder code
out of staging into the "real" part of the kernel. This is code that
has been stable for a few years now and is working as-is in the tens of
millions of devices with no issues. Yes, the code is horrid, and the
userspace api leaves a lot to be desired, but it's not going to change
due to legacy issues that we have no control over. Because so many
devices and companies rely on this, and the code is stable, might as
well promote it out of staging.
This was all discussed at the Linux Plumbers conference, and everyone
participating agreed that this was the best way forward.
There is work happening to replace the binder code with something new
that is happening right now, but I don't expect to see the results of
that work for another year at the earliest. If that ever happens, and
Android switches over to it, I'll gladly remove this version.
As for maintainers, I'll be glad to maintain this code, I've been doing
it for the past few years with no problems. I'll send a MAINTAINERS
entry for it before 3.19-final is out, still need to talk to the Google
developers about if they are willing to help with it or not, last I
checked they were, which was good.
All of these patches have been in linux-next for a while with no
reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging driver updates from Greg KH:
"Here's the big staging tree pull request for 3.19-rc1.
We continued to delete more lines than were added, always a good
thing, but not at a huge rate this release, only about 70k lines
removed overall mostly from removing the horrid bcm driver.
Lots of normal staging driver cleanups and fixes all over the place,
well over a thousand of them, the shortlog shows all the horrid
details.
The "contentious" thing here is the movement of the Android binder
code out of staging into the "real" part of the kernel. This is code
that has been stable for a few years now and is working as-is in the
tens of millions of devices with no issues. Yes, the code is horrid,
and the userspace api leaves a lot to be desired, but it's not going
to change due to legacy issues that we have no control over. Because
so many devices and companies rely on this, and the code is stable,
might as well promote it out of staging.
This was all discussed at the Linux Plumbers conference, and everyone
participating agreed that this was the best way forward.
There is work happening to replace the binder code with something new
that is happening right now, but I don't expect to see the results of
that work for another year at the earliest. If that ever happens, and
Android switches over to it, I'll gladly remove this version.
As for maintainers, I'll be glad to maintain this code, I've been
doing it for the past few years with no problems. I'll send a
MAINTAINERS entry for it before 3.19-final is out, still need to talk
to the Google developers about if they are willing to help with it or
not, last I checked they were, which was good.
All of these patches have been in linux-next for a while with no
reported issues"
* tag 'staging-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (1382 commits)
Staging: slicoss: Fix long line issues in slicoss.c
staging: rtl8712: remove unnecessary else after return
staging: comedi: change some printk calls to pr_err
staging: rtl8723au: hal: Removed the extra semicolon
lustre: Deletion of unnecessary checks before three function calls
staging: lustre: fix sparse warnings: static function declaration
staging: lustre: fixed sparse warnings related to static declarations
staging: unisys: remove duplicate header
staging: unisys: remove unneeded structure
staging: ft1000 : replace __attribute ((__packed__) with __packed
drivers: staging: rtl8192e: Include "asm/unaligned.h" instead of "access_ok.h" in "rtl819x_BAProc.c"
Drivers:staging:rtl8192e: Fixed checkpatch warning
Drivers:staging:clocking-wizard: Added a newline
staging: clocking-wizard: check for a valid clk_name pointer
staging: rtl8723au: Hal_InitPGData() avoid unnecessary typecasts
staging: rtl8723au: _DisableAnalog(): Avoid zero-init variables unnecessarily
staging: rtl8723au: Remove unnecessary wrapper _ResetDigitalProcedure1()
staging: rtl8723au: _ResetDigitalProcedure1_92C() reduce code obfuscation
staging: rtl8723au: Remove unnecessary wrapper _DisableRFAFEAndResetBB()
staging: rtl8723au: _DisableRFAFEAndResetBB8192C(): Reduce code obfuscation
...
* update power/reset drivers to use kernel restart handler
* add power off driver for i.mx6
* add DT support for gpio-charger
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Merge tag 'for-v3.19' of git://git.infradead.org/battery-2.6
Pull power supply updates from Sebastian Reichel::
"Power supply and reset changes for the v3.19 series
- update power/reset drivers to use kernel restart handler
- add power off driver for i.mx6
- add DT support for gpio-charger"
* tag 'for-v3.19' of git://git.infradead.org/battery-2.6:
power: reset: adjust priority of simple syscon reboot driver
power: ds2782_battery: Simplify the PM hooks
power/reset: brcmstb: Register with kernel restart handler
power/reset: hisi: Register with kernel restart handler
power/reset: keystone: Register with kernel restart handler
power/reset: axxia: Register with kernel restart handler
power/reset: xgene: Register with kernel restart handler
power/reset: xgene: Use mdelay instead of jiffies based timeout
power/reset: xgene: Use local variable dev instead of pdev->dev
power/reset: xgene: Drop devm_kfree
power/reset: xgene: Return -ENOMEM if out of memory
power/reset: vexpress: Register with kernel restart handler
power: reset: imx-snvs-poweroff: add power off driver for i.mx6
power: gpio-charger: add device tree support
dt-bindings: document gpio-charger bindings
Pull irq domain ARM updates from Thomas Gleixner:
"This set of changes make use of hierarchical irqdomains to provide:
- MSI/ITS support for GICv3
- MSI support for GICv2m
- Interrupt polarity extender for GICv1
Marc has come more cleanups for the existing extension hooks of GIC in
the pipeline, but they are going to be 3.20 material"
* 'irq-irqdomain-arm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (22 commits)
irqchip: gicv3-its: Fix ITT allocation
irqchip: gicv3-its: Move some alloc/free code to activate/deactivate
irqchip: gicv3-its: Fix domain free in multi-MSI case
irqchip: gic: Remove warning by including linux/irqdomain.h
irqchip: gic-v2m: Add DT bindings for GICv2m
irqchip: gic-v2m: Add support for ARM GICv2m MSI(-X) doorbell
irqchip: mtk-sysirq: dt-bindings: Add bindings for mediatek sysirq
irqchip: mtk-sysirq: Add sysirq interrupt polarity support
irqchip: gic: Support hierarchy irq domain.
irqchip: GICv3: Binding updates for ITS
irqchip: GICv3: ITS: enable compilation of the ITS driver
irqchip: GICv3: ITS: plug ITS init into main GICv3 code
irqchip: GICv3: ITS: DT probing and initialization
irqchip: GICv3: ITS: MSI support
irqchip: GICv3: ITS: device allocation and configuration
irqchip: GICv3: ITS: tables allocators
irqchip: GICv3: ITS: LPI allocator
irqchip: GICv3: ITS: irqchip implementation
irqchip: GICv3: ITS command queue
irqchip: GICv3: rework redistributor structure
...
use less buffers when small vrings are being used.
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Merge tag 'rpmsg-3.19-next' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/rpmsg
Pull rpmsg update from Ohad Ben-Cohen:
"A single patch from Suman Anna which makes rpmsg use less buffers when
small vrings are being used"
* tag 'rpmsg-3.19-next' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/rpmsg:
rpmsg: use less buffers when vrings are small
Pull drm updates from Dave Airlie:
"Highlights:
- AMD KFD driver merge
This is the AMD HSA interface for exposing a lowlevel interface for
GPGPU use. They have an open source userspace built on top of this
interface, and the code looks as good as it was going to get out of
tree.
- Initial atomic modesetting work
The need for an atomic modesetting interface to allow userspace to
try and send a complete set of modesetting state to the driver has
arisen, and been suffering from neglect this past year. No more,
the start of the common code and changes for msm driver to use it
are in this tree. Ongoing work to get the userspace ioctl finished
and the code clean will probably wait until next kernel.
- DisplayID 1.3 and tiled monitor exposed to userspace.
Tiled monitor property is now exposed for userspace to make use of.
- Rockchip drm driver merged.
- imx gpu driver moved out of staging
Other stuff:
- core:
panel - MIPI DSI + new panels.
expose suggested x/y properties for virtual GPUs
- i915:
Initial Skylake (SKL) support
gen3/4 reset work
start of dri1/ums removal
infoframe tracking
fixes for lots of things.
- nouveau:
tegra k1 voltage support
GM204 modesetting support
GT21x memory reclocking work
- radeon:
CI dpm fixes
GPUVM improvements
Initial DPM fan control
- rcar-du:
HDMI support added
removed some support for old boards
slave encoder driver for Analog Devices adv7511
- exynos:
Exynos4415 SoC support
- msm:
a4xx gpu support
atomic helper conversion
- tegra:
iommu support
universal plane support
ganged-mode DSI support
- sti:
HDMI i2c improvements
- vmwgfx:
some late fixes.
- qxl:
use suggested x/y properties"
* 'drm-next' of git://people.freedesktop.org/~airlied/linux: (969 commits)
drm: sti: fix module compilation issue
drm/i915: save/restore GMBUS freq across suspend/resume on gen4
drm: sti: correctly cleanup CRTC and planes
drm: sti: add HQVDP plane
drm: sti: add cursor plane
drm: sti: enable auxiliary CRTC
drm: sti: fix delay in VTG programming
drm: sti: prepare sti_tvout to support auxiliary crtc
drm: sti: use drm_crtc_vblank_{on/off} instead of drm_vblank_{on/off}
drm: sti: fix hdmi avi infoframe
drm: sti: remove event lock while disabling vblank
drm: sti: simplify gdp code
drm: sti: clear all mixer control
drm: sti: remove gpio for HDMI hot plug detection
drm: sti: allow to change hdmi ddc i2c adapter
drm/doc: Document drm_add_modes_noedid() usage
drm/i915: Remove '& 0xffff' from the mask given to WA_REG()
drm/i915: Invert the mask and val arguments in wa_add() and WA_REG()
drm: Zero out DRM object memory upon cleanup
drm/i915/bdw: Fix the write setting up the WIZ hashing mode
...
When compiling in module some symbol aren't missing,
export them correctly.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Here's the big char/misc driver update for 3.19-rc1
Lots of little things all over the place in different drivers, and a new
subsystem, "coresight" has been added. Full details are in the
shortlog.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver updates from Greg KH:
"Here's the big char/misc driver update for 3.19-rc1
Lots of little things all over the place in different drivers, and a
new subsystem, "coresight" has been added. Full details are in the
shortlog"
* tag 'char-misc-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (73 commits)
parport: parport_pc, do not remove parent devices early
spmi: Remove shutdown/suspend/resume kernel-doc
carma-fpga-program: drop videobuf dependency
carma-fpga: drop videobuf dependency
carma-fpga-program.c: fix compile errors
i8k: Fix temperature bug handling in i8k_get_temp()
cxl: Name interrupts in /proc/interrupt
CXL: Return error to PSL if IRQ demultiplexing fails & print clearer warning
coresight-replicator: remove .owner field for driver
coresight: fixed comments in coresight.h
coresight: fix typo in comment in coresight-priv.h
coresight: bindings for coresight drivers
coresight: Adding ABI documentation
w1: support auto-load of w1_bq27000 module.
w1: avoid potential u16 overflow
cn: verify msg->len before making callback
mei: export fw status registers through sysfs
mei: read and print all six FW status registers
mei: txe: add cherrytrail device id
mei: kill cached host and me csr values
...
Here's the set of driver core patches for 3.19-rc1.
They are dominated by the removal of the .owner field in platform
drivers. They touch a lot of files, but they are "simple" changes, just
removing a line in a structure.
Other than that, a few minor driver core and debugfs changes. There are
some ath9k patches coming in through this tree that have been acked by
the wireless maintainers as they relied on the debugfs changes.
Everything has been in linux-next for a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core update from Greg KH:
"Here's the set of driver core patches for 3.19-rc1.
They are dominated by the removal of the .owner field in platform
drivers. They touch a lot of files, but they are "simple" changes,
just removing a line in a structure.
Other than that, a few minor driver core and debugfs changes. There
are some ath9k patches coming in through this tree that have been
acked by the wireless maintainers as they relied on the debugfs
changes.
Everything has been in linux-next for a while"
* tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (324 commits)
Revert "ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries"
fs: debugfs: add forward declaration for struct device type
firmware class: Deletion of an unnecessary check before the function call "vunmap"
firmware loader: fix hung task warning dump
devcoredump: provide a one-way disable function
device: Add dev_<level>_once variants
ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries
ath: use seq_file api for ath9k debugfs files
debugfs: add helper function to create device related seq_file
drivers/base: cacheinfo: remove noisy error boot message
Revert "core: platform: add warning if driver has no owner"
drivers: base: support cpu cache information interface to userspace via sysfs
drivers: base: add cpu_device_create to support per-cpu devices
topology: replace custom attribute macros with standard DEVICE_ATTR*
cpumask: factor out show_cpumap into separate helper function
driver core: Fix unbalanced device reference in drivers_probe
driver core: fix race with userland in device_add()
sysfs/kernfs: make read requests on pre-alloc files use the buffer.
sysfs/kernfs: allow attributes to request write buffer be pre-allocated.
fs: sysfs: return EGBIG on write if offset is larger than file size
...
Here's the big tty/serial driver update for 3.19-rc1.
There are a number of TTY core changes/fixes in here from Peter Hurley
that have all been teted in linux-next for a long time now. There are
also the normal serial driver updates as well, full details in the
changelog below.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial driver updates from Greg KH:
"Here's the big tty/serial driver update for 3.19-rc1.
There are a number of TTY core changes/fixes in here from Peter Hurley
that have all been teted in linux-next for a long time now. There are
also the normal serial driver updates as well, full details in the
changelog below"
* tag 'tty-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (219 commits)
serial: pxa: hold port.lock when reporting modem line changes
tty-hvsi_lib: Deletion of an unnecessary check before the function call "tty_kref_put"
tty: Deletion of unnecessary checks before two function calls
n_tty: Fix read_buf race condition, increment read_head after pushing data
serial: of-serial: add PM suspend/resume support
Revert "serial: of-serial: add PM suspend/resume support"
Revert "serial: of-serial: fix up PM ops on no_console_suspend and port type"
serial: 8250: don't attempt a trylock if in sysrq
serial: core: Add big-endian iotype
serial: samsung: use port->fifosize instead of hardcoded values
serial: samsung: prefer to use fifosize from driver data
serial: samsung: fix style problems
serial: samsung: wait for transfer completion before clock disable
serial: icom: fix error return code
serial: tegra: clean up tty-flag assignments
serial: Fix io address assign flow with Fintek PCI-to-UART Product
serial: mxs-auart: fix tx_empty against shift register
serial: mxs-auart: fix gpio change detection on interrupt
serial: mxs-auart: Fix mxs_auart_set_ldisc()
serial: 8250_dw: Use 64-bit access for OCTEON.
...
Here's the big set of USB and PHY patches for 3.19-rc1.
The normal churn in the USB gadget area is in here, as well as xhci and
other individual USB driver updates. The PHY tree is also in here, as
there were dependancies on the USB tree.
All of these have been in linux-next.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB updates from Greg KH:
"Here's the big set of USB and PHY patches for 3.19-rc1.
The normal churn in the USB gadget area is in here, as well as xhci
and other individual USB driver updates. The PHY tree is also in
here, as there were dependancies on the USB tree.
All of these have been in linux-next"
* tag 'usb-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (351 commits)
arm: omap3: twl: remove usb phy init data
usbip: fix error handling in stub_probe()
usb: gadget: udc: missing curly braces
USB: mos7720: delete some unneeded code
wusb: replace memset by memzero_explicit
usbip: remove unneeded structure
usb: xhci: fix comment for PORT_DEV_REMOVE
xhci: don't use the same variable for stopped and halted rings current TD
xhci: clear extra bits from slot context when setting max exit latency
xhci: cleanup finish_td function
USB: adutux: NULL dereferences on disconnect
usb: chipidea: fix platform_no_drv_owner.cocci warnings
usb: chipidea: Fixed a few typos in comments
Documentation: bindings: add doc for the USB2 ChipIdea USB driver
usb: chipidea: add a usb2 driver for ci13xxx
usb: chipidea: fix phy handling
usb: chipidea: remove duplicate dev_set_drvdata for host_start
usb: chipidea: parameter 'mode' isn't needed for hw_device_reset
usb: chipidea: add controller reset API
usb: chipidea: remove flag CI_HDRC_REQUIRE_TRANSCEIVER
...
- A new API that allows setting more than one GPIO at the
time. This is implemented for the new descriptor-based
API only and makes it possible to e.g. toggle a clock and
data line at the same time, if the hardware can do this
with a single register write. Both consumers and drivers
need new calls, and the core will fall back to driving
individual lines where needed. Implemented for the MPC8xxx
driver initially.
- Patched the mdio-mux-gpio and the serial mctrl driver
that drives modems to use the new multiple-setting API
to set several signals simultaneously.
- Get rid of the global GPIO descriptor array, and instead
allocate descriptors dynamically for each GPIO on a certain
GPIO chip. This moves us closer to getting rid of the
limitation of using the global, static GPIO numberspace.
- New driver and device tree bindings for 74xx ICs.
- New driver and device tree bindings for the VF610 Vybrid.
- Support the RCAR r8a7793 and r8a7794.
- Guidelines for GPIO device tree bindings trying to get
things a bit more strict with the advent of combined
device properties.
- Suspend/resume support for the MVEBU driver.
- A slew of minor fixes and improvements.
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Merge tag 'gpio-v3.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull take two of the GPIO updates:
"Same stuff as last time, now with a fixup patch for the previous
compile error plus I ran a few extra rounds of compile-testing.
This is the bulk of GPIO changes for the v3.19 series:
- A new API that allows setting more than one GPIO at the time. This
is implemented for the new descriptor-based API only and makes it
possible to e.g. toggle a clock and data line at the same time, if
the hardware can do this with a single register write. Both
consumers and drivers need new calls, and the core will fall back
to driving individual lines where needed. Implemented for the
MPC8xxx driver initially
- Patched the mdio-mux-gpio and the serial mctrl driver that drives
modems to use the new multiple-setting API to set several signals
simultaneously
- Get rid of the global GPIO descriptor array, and instead allocate
descriptors dynamically for each GPIO on a certain GPIO chip. This
moves us closer to getting rid of the limitation of using the
global, static GPIO numberspace
- New driver and device tree bindings for 74xx ICs
- New driver and device tree bindings for the VF610 Vybrid
- Support the RCAR r8a7793 and r8a7794
- Guidelines for GPIO device tree bindings trying to get things a bit
more strict with the advent of combined device properties
- Suspend/resume support for the MVEBU driver
- A slew of minor fixes and improvements"
* tag 'gpio-v3.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (33 commits)
gpio: mcp23s08: fix up compilation error
gpio: pl061: document gpio-ranges property for bindings file
gpio: pl061: hook request if gpio-ranges avaiable
gpio: mcp23s08: Add option to configure IRQ output polarity as active high
gpio: fix deferred probe detection for legacy API
serial: mctrl_gpio: use gpiod_set_array function
mdio-mux-gpio: Use GPIO descriptor interface and new gpiod_set_array function
gpio: remove const modifier from gpiod_get_direction()
gpio: remove gpio_descs global array
gpio: mxs: implement get_direction callback
gpio: em: Use dynamic allocation of GPIOs
gpio: Check if base is positive before calling gpio_is_valid()
gpio: mcp23s08: Add simple IRQ support for SPI devices
gpio: mcp23s08: request a shared interrupt
gpio: mcp23s08: Do not free unrequested interrupt
gpio: rcar: Add r8a7793 and r8a7794 support
gpio-mpc8xxx: add mpc8xxx_gpio_set_multiple function
gpiolib: allow simultaneous setting of multiple GPIO outputs
gpio: mvebu: add suspend/resume support
gpio: gpio-davinci: remove duplicate check on resource
..
Pull i2c updates from Wolfram Sang:
"For 3.19, the I2C subsystem has to offer special candy this time.
Right in time for Christmas :)
- I2C slave framework: finally, a generic mechanism for Linux being
an I2C slave (if the bus driver supports that). Docs are still
missing but will come later this cycle, the code is good enough to
go.
- I2C muxes represent their topology in sysfs much more detailed.
This will help users to navigate around much easier.
- irq population of i2c clients is now done at probe time, not device
creation time, to have better support for deferred probing.
- new drivers for Imagination SCB, Amlogic Meson
- DMA support added for Freescale IMX, Renesas SHMobile
- slightly bigger driver updates to OMAP, i801, AT91, and rk3x
(mostly quirk handling, timing updates, and using better kernel
interfaces)
- eeprom driver can now write with byte-access (very slow, but OK to
have)
- and the bunch of smaller fixes, cleanups, ID updates..."
* 'i2c/for-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (56 commits)
i2c: sh_mobile: remove unneeded DMA mask
i2c: rcar: add slave support
i2c: slave-eeprom: add eeprom simulator driver
i2c: core changes for slave support
MAINTAINERS: add I2C dt bindings also to I2C realm
i2c: designware: Fix falling time bindings doc
i2c: davinci: switch to use platform_get_irq
Documentation: i2c: Use PM ops instead of legacy suspend/resume
i2c: sh_mobile: optimize irq entry
i2c: pxa: add support for SCCB devices
omap: i2c: don't check bus state IP rev3.3 and earlier
i2c: s3c2410: Handle i2c sys_cfg register in i2c driver
i2c: rk3x: add Kconfig dependency on COMMON_CLK
i2c: omap: add notes related to i2c multimaster mode
i2c: omap: don't reset controller if Arbitration Lost detected
i2c: omap: implement workaround for handling invalid BB-bit values
i2c: omap: cleanup register definitions
i2c: rk3x: handle dynamic clock rate changes correctly
i2c: at91: enable probe deferring on dma channel request
i2c: at91: remove legacy DMA support
...
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Merge tag 'md/3.19' of git://neil.brown.name/md
Pull md updates from Neil Brown:
"Three fixes for md.
I did have a largish set of locking changes queued, but late testing
showed they weren't quite as stable as I thought and while I fixed
what I found, I decided it safer to delay them a release ...
particularly as I'll be AFK for a few weeks. So expect a larger batch
next time :-)"
* tag 'md/3.19' of git://neil.brown.name/md:
md: Check MD_RECOVERY_RUNNING as well as ->sync_thread.
md: fix semicolon.cocci warnings
md/raid5: fetch_block must fetch all the blocks handle_stripe_dirtying wants.
Commit af906faabc ("Input: gpio_keys - fix warning regarding uninitialized
'irq' variable") introduced the following build warning:
drivers/input/keyboard/gpio_keys.c:625:16: warning: 'button' may be used uninitialized in this function [-Wmaybe-uninitialized]
Move the 'button' initialization to a proper location to avoid such warning.
Reported-by: Olof's autobuilder <build@lixom.net>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Pull block layer driver updates from Jens Axboe:
- NVMe updates:
- The blk-mq conversion from Matias (and others)
- A stack of NVMe bug fixes from the nvme tree, mostly from Keith.
- Various bug fixes from me, fixing issues in both the blk-mq
conversion and generic bugs.
- Abort and CPU online fix from Sam.
- Hot add/remove fix from Indraneel.
- A couple of drbd fixes from the drbd team (Andreas, Lars, Philipp)
- With the generic IO stat accounting from 3.19/core, converting md,
bcache, and rsxx to use those. From Gu Zheng.
- Boundary check for queue/irq mode for null_blk from Matias. Fixes
cases where invalid values could be given, causing the device to hang.
- The xen blkfront pull request, with two bug fixes from Vitaly.
* 'for-3.19/drivers' of git://git.kernel.dk/linux-block: (56 commits)
NVMe: fix race condition in nvme_submit_sync_cmd()
NVMe: fix retry/error logic in nvme_queue_rq()
NVMe: Fix FS mount issue (hot-remove followed by hot-add)
NVMe: fix error return checking from blk_mq_alloc_request()
NVMe: fix freeing of wrong request in abort path
xen/blkfront: remove redundant flush_op
xen/blkfront: improve protection against issuing unsupported REQ_FUA
NVMe: Fix command setup on IO retry
null_blk: boundary check queue_mode and irqmode
block/rsxx: use generic io stats accounting functions to simplify io stat accounting
md: use generic io stats accounting functions to simplify io stat accounting
drbd: use generic io stats accounting functions to simplify io stat accounting
md/bcache: use generic io stats accounting functions to simplify io stat accounting
NVMe: Update module version major number
NVMe: fail pci initialization if the device doesn't have any BARs
NVMe: add ->exit_hctx() hook
NVMe: make setup work for devices that don't do INTx
NVMe: enable IO stats by default
NVMe: nvme_submit_async_admin_req() must use atomic rq allocation
NVMe: replace blk_put_request() with blk_mq_free_request()
...
Pull block driver core update from Jens Axboe:
"This is the pull request for the core block IO changes for 3.19. Not
a huge round this time, mostly lots of little good fixes:
- Fix a bug in sysfs blktrace interface causing a NULL pointer
dereference, when enabled/disabled through that API. From Arianna
Avanzini.
- Various updates/fixes/improvements for blk-mq:
- A set of updates from Bart, mostly fixing buts in the tag
handling.
- Cleanup/code consolidation from Christoph.
- Extend queue_rq API to be able to handle batching issues of IO
requests. NVMe will utilize this shortly. From me.
- A few tag and request handling updates from me.
- Cleanup of the preempt handling for running queues from Paolo.
- Prevent running of unmapped hardware queues from Ming Lei.
- Move the kdump memory limiting check to be in the correct
location, from Shaohua.
- Initialize all software queues at init time from Takashi. This
prevents a kobject warning when CPUs are brought online that
weren't online when a queue was registered.
- Single writeback fix for I_DIRTY clearing from Tejun. Queued with
the core IO changes, since it's just a single fix.
- Version X of the __bio_add_page() segment addition retry from
Maurizio. Hope the Xth time is the charm.
- Documentation fixup for IO scheduler merging from Jan.
- Introduce (and use) generic IO stat accounting helpers for non-rq
drivers, from Gu Zheng.
- Kill off artificial limiting of max sectors in a request from
Christoph"
* 'for-3.19/core' of git://git.kernel.dk/linux-block: (26 commits)
bio: modify __bio_add_page() to accept pages that don't start a new segment
blk-mq: Fix uninitialized kobject at CPU hotplugging
blktrace: don't let the sysfs interface remove trace from running list
blk-mq: Use all available hardware queues
blk-mq: Micro-optimize bt_get()
blk-mq: Fix a race between bt_clear_tag() and bt_get()
blk-mq: Avoid that __bt_get_word() wraps multiple times
blk-mq: Fix a use-after-free
blk-mq: prevent unmapped hw queue from being scheduled
blk-mq: re-check for available tags after running the hardware queue
blk-mq: fix hang in bt_get()
blk-mq: move the kdump check to blk_mq_alloc_tag_set
blk-mq: cleanup tag free handling
blk-mq: use 'nr_cpu_ids' as highest CPU ID count for hwq <-> cpu map
blk: introduce generic io stat accounting help function
blk-mq: handle the single queue case in blk_mq_hctx_next_cpu
genhd: check for int overflow in disk_expand_part_tbl()
blk-mq: add blk_mq_free_hctx_request()
blk-mq: export blk_mq_free_request()
blk-mq: use get_cpu/put_cpu instead of preempt_disable/preempt_enable
...
Pull crypto update from Herbert Xu:
- The crypto API is now documented :)
- Disallow arbitrary module loading through crypto API.
- Allow get request with empty driver name through crypto_user.
- Allow speed testing of arbitrary hash functions.
- Add caam support for ctr(aes), gcm(aes) and their derivatives.
- nx now supports concurrent hashing properly.
- Add sahara support for SHA1/256.
- Add ARM64 version of CRC32.
- Misc fixes.
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (77 commits)
crypto: tcrypt - Allow speed testing of arbitrary hash functions
crypto: af_alg - add user space interface for AEAD
crypto: qat - fix problem with coalescing enable logic
crypto: sahara - add support for SHA1/256
crypto: sahara - replace tasklets with kthread
crypto: sahara - add support for i.MX53
crypto: sahara - fix spinlock initialization
crypto: arm - replace memset by memzero_explicit
crypto: powerpc - replace memset by memzero_explicit
crypto: sha - replace memset by memzero_explicit
crypto: sparc - replace memset by memzero_explicit
crypto: algif_skcipher - initialize upon init request
crypto: algif_skcipher - removed unneeded code
crypto: algif_skcipher - Fixed blocking recvmsg
crypto: drbg - use memzero_explicit() for clearing sensitive data
crypto: drbg - use MODULE_ALIAS_CRYPTO
crypto: include crypto- module prefix in template
crypto: user - add MODULE_ALIAS
crypto: sha-mb - remove a bogus NULL check
crytpo: qat - Fix 64 bytes requests
...
Merge second patchbomb from Andrew Morton:
- the rest of MM
- misc fs fixes
- add execveat() syscall
- new ratelimit feature for fault-injection
- decompressor updates
- ipc/ updates
- fallocate feature creep
- fsnotify cleanups
- a few other misc things
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (99 commits)
cgroups: Documentation: fix trivial typos and wrong paragraph numberings
parisc: percpu: update comments referring to __get_cpu_var
percpu: update local_ops.txt to reflect this_cpu operations
percpu: remove __get_cpu_var and __raw_get_cpu_var macros
fsnotify: remove destroy_list from fsnotify_mark
fsnotify: unify inode and mount marks handling
fallocate: create FAN_MODIFY and IN_MODIFY events
mm/cma: make kmemleak ignore CMA regions
slub: fix cpuset check in get_any_partial
slab: fix cpuset check in fallback_alloc
shmdt: use i_size_read() instead of ->i_size
ipc/shm.c: fix overly aggressive shmdt() when calls span multiple segments
ipc/msg: increase MSGMNI, remove scaling
ipc/sem.c: increase SEMMSL, SEMMNI, SEMOPM
ipc/sem.c: change memory barrier in sem_lock() to smp_rmb()
lib/decompress.c: consistency of compress formats for kernel image
decompress_bunzip2: off by one in get_next_block()
usr/Kconfig: make initrd compression algorithm selection not expert
fault-inject: add ratelimit option
ratelimit: add initialization macro
...
In current zram, we use DEVICE_ATTR() to define sys device attributes.
SO, we need to set (S_IRUGO | S_IWUSR) permission and other arguments
manually. Linux already provids the macro DEVICE_ATTR_[RW|RO|WO] to
define sys device attribute. It is simple and readable.
This patch uses kernel defined macro DEVICE_ATTR_[RW|RO|WO] to define
zram device attribute.
Signed-off-by: Ganesh Mahendran <opensource.ganesh@gmail.com>
Acked-by: Jerome Marchand <jmarchan@redhat.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Nitin Gupta <ngupta@vflare.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
In struct zram_table_entry, the element *value* contains obj size and obj
zram flags. Bit 0 to bit (ZRAM_FLAG_SHIFT - 1) represent obj size, and
bit ZRAM_FLAG_SHIFT to the highest bit of unsigned long represent obj
zram_flags. So the first zram flag(ZRAM_ZERO) should be from
ZRAM_FLAG_SHIFT instead of (ZRAM_FLAG_SHIFT + 1).
This patch fixes this cosmetic issue.
Also fix a typo, "page in now accessed" -> "page is now accessed"
Signed-off-by: Mahendran Ganesh <opensource.ganesh@gmail.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Acked-by: Weijie Yang <weijie.yang@samsung.com>
Acked-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Nitin Gupta <ngupta@vflare.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This patch implements rw_page operation for zram block device.
I implemented the feature in zram and tested it. Test bed was the G2, LG
electronic mobile device, whtich has msm8974 processor and 2GB memory.
With a memory allocation test program consuming memory, the system
generates swap.
Operating time of swap_write_page() was measured.
--------------------------------------------------
| | operating time | improvement |
| | (20 runs average) | |
--------------------------------------------------
|with patch | 1061.15 us | +2.4% |
--------------------------------------------------
|without patch| 1087.35 us | |
--------------------------------------------------
Each test(with paged_io,with BIO) result set shows normal distribution and
has equal variance. I mean the two values are valid result to compare. I
can say operation with paged I/O(without BIO) is faster 2.4% with
confidence level 95%.
[minchan@kernel.org: make rw_page opeartion return 0]
[minchan@kernel.org: rely on the bi_end_io for zram_rw_page fails]
[sergey.senozhatsky@gmail.com: code cleanup]
[minchan@kernel.org: add comment]
Signed-off-by: karam.lee <karam.lee@lge.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Acked-by: Jerome Marchand <jmarchan@redhat.com>
Cc: Matthew Wilcox <matthew.r.wilcox@intel.com>
Cc: Nitin Gupta <ngupta@vflare.org>
Cc: <seungho1.park@lge.com>
Signed-off-by: Minchan Kim <minchan@kernel.org>
Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This patch changes parameter of valid_io_request for common usage. The
purpose of valid_io_request() is to determine if bio request is valid or
not.
This patch use I/O start address and size instead of a BIO parameter for
common usage.
Signed-off-by: karam.lee <karam.lee@lge.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Acked-by: Jerome Marchand <jmarchan@redhat.com>
Cc: Matthew Wilcox <matthew.r.wilcox@intel.com>
Cc: Nitin Gupta <ngupta@vflare.org>
Cc: <seungho1.park@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Recently rw_page block device operation has been added. This patchset
implements rw_page operation for zram block device and does some clean-up.
This patch (of 3):
Remove an unnecessary parameter(bio) from zram_bvec_rw() and
zram_bvec_read(). zram_bvec_read() doesn't use a bio parameter, so remove
it. zram_bvec_rw() calls a read/write operation not using bio, so a rw
parameter replaces a bio parameter.
Signed-off-by: karam.lee <karam.lee@lge.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Acked-by: Jerome Marchand <jmarchan@redhat.com>
Cc: Matthew Wilcox <matthew.r.wilcox@intel.com>
Cc: Nitin Gupta <ngupta@vflare.org>
Cc: <seungho1.park@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The slab shrinkers are currently invoked from the zonelist walkers in
kswapd, direct reclaim, and zone reclaim, all of which roughly gauge the
eligible LRU pages and assemble a nodemask to pass to NUMA-aware
shrinkers, which then again have to walk over the nodemask. This is
redundant code, extra runtime work, and fairly inaccurate when it comes to
the estimation of actually scannable LRU pages. The code duplication will
only get worse when making the shrinkers cgroup-aware and requiring them
to have out-of-band cgroup hierarchy walks as well.
Instead, invoke the shrinkers from shrink_zone(), which is where all
reclaimers end up, to avoid this duplication.
Take the count for eligible LRU pages out of get_scan_count(), which
considers many more factors than just the availability of swap space, like
zone_reclaimable_pages() currently does. Accumulate the number over all
visited lruvecs to get the per-zone value.
Some nodes have multiple zones due to memory addressing restrictions. To
avoid putting too much pressure on the shrinkers, only invoke them once
for each such node, using the class zone of the allocation as the pivot
zone.
For now, this integrates the slab shrinking better into the reclaim logic
and gets rid of duplicative invocations from kswapd, direct reclaim, and
zone reclaim. It also prepares for cgroup-awareness, allowing
memcg-capable shrinkers to be added at the lruvec level without much
duplication of both code and runtime work.
This changes kswapd behavior, which used to invoke the shrinkers for each
zone, but with scan ratios gathered from the entire node, resulting in
meaningless pressure quantities on multi-zone nodes.
Zone reclaim behavior also changes. It used to shrink slabs until the
same amount of pages were shrunk as were reclaimed from the LRUs. Now it
merely invokes the shrinkers once with the zone's scan ratio, which makes
the shrinkers go easier on caches that implement aging and would prefer
feeding back pressure from recently used slab objects to unused LRU pages.
[vdavydov@parallels.com: assure class zone is populated]
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Dave Chinner <david@fromorbit.com>
Signed-off-by: Vladimir Davydov <vdavydov@parallels.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This is just a small optimization. The start_pfn can be obtained directly
by phys_index << PFN_SECTION_SHIFT. So the call of page_to_pfn() is
redundant and remove it.
Signed-off-by: Zhang Zhen <zhenzhang.zhang@huawei.com>
Acked-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Acked-by: David Rientjes <rientjes@google.com>
Cc: Dave Hansen <dave@sr71.net>
Cc: Wang Nan <wangnan0@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This could be useful for debug in the future if we want to track
major/minor faults more closely, and also avoids the put_page trick we
used with gup.
In order to do this, we also track the task struct in the PASID state
structure. This lets us update the appropriate task stats after the fault
has been handled, and may aid with debug in the future as well.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Tested-by: Oded Gabbay <oded.gabbay@amd.com>
Cc: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit 7654e9d4fd ("drivers/rtc/rtc-snvs: fix suspend/resume")
replaces SIMPLE_DEV_PM_OPS with direct declaration of snvs_rtc_pm_ops,
but does so outside #ifdef CONFIG_PM_SLEEP. This causes the driver
build to fail if CONFIG_PM_SLEEP is not configured.
Fixes: 7654e9d4fd ("drivers/rtc/rtc-snvs: fix suspend/resume")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Cc: Sanchayan Maity <maitysanchayan@gmail.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
When issuing a MAPD command, one of the parameters passed to the ITS
is the number of EventID bits used to index the per-device Interrupt
Translation Table (ITT). Crucially, this is the number of bits
*minus one*.
This has two consequences:
- The size of the ITT has to be a strict power of two, no matter
how many different events the device is actually going to generate.
- It is impossible to express an ITT with a single entry, as you
would have to tell the ITS to "use zero bit from the EventID",
and that clashes with "minus one" above.
Fix this by allocating the ITT with the number of vectors rounded up
to the next power of two, with a minimum of two entries.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Yun Wu (Abel) <wuyun.wu@huawei.com>
Cc: Robert Richter <robert.richter@caviumnetworks.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
The ITS code could do a bit less in the alloc/free paths, and a bit
more in the activate/deactivate methods, giving a better separation
between software allocation and HW programing.
Suggested-by: Wuyun Wu (Abel) <wuyun.wu@huawei.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Yun Wu (Abel) <wuyun.wu@huawei.com>
Cc: Robert Richter <robert.richter@caviumnetworks.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Fix stupid thinko on the path freeing the interrupts, where only
the first interrupt would get reset, and none of the others.
This should only affect multi-MSI allocations.
Reported-by: Wuyun Wu (Abel) <wuyun.wu@huawei.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Robert Richter <robert.richter@caviumnetworks.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
The torture test should quit once it actually induces an error in the
flash. This step was accidentally removed during refactoring.
Without this fix, the torturetest just continues infinitely, or until
the maximum cycle count is reached. e.g.:
...
[ 7619.218171] mtd_test: error -5 while erasing EB 100
[ 7619.297981] mtd_test: error -5 while erasing EB 100
[ 7619.377953] mtd_test: error -5 while erasing EB 100
[ 7619.457998] mtd_test: error -5 while erasing EB 100
[ 7619.537990] mtd_test: error -5 while erasing EB 100
...
Fixes: 6cf78358c9 ("mtd: mtd_torturetest: use mtd_test helpers")
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Cc: Akinobu Mita <akinobu.mita@gmail.com>
Cc: <stable@vger.kernel.org>
On device remove, when testing the cmtd field of an of_flash
struct to decide whether it is a concatenated device or not,
we get a false positive on cmtd == NULL, and dereference it
subsequently. This may occur if of_flash_remove() is called
from the cleanup path of of_flash_probe().
Instead, test for NULL first, and only then perform the test
for a concatenated device.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Pull another networking update from David Miller:
"Small follow-up to the main merge pull from the other day:
1) Alexander Duyck's DMA memory barrier patch set.
2) cxgb4 driver fixes from Karen Xie.
3) Add missing export of fixed_phy_register() to modules, from Mark
Salter.
4) DSA bug fixes from Florian Fainelli"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (24 commits)
net/macb: add TX multiqueue support for gem
linux/interrupt.h: remove the definition of unused tasklet_hi_enable
jme: replace calls to redundant function
net: ethernet: davicom: Allow to select DM9000 for nios2
net: ethernet: smsc: Allow to select SMC91X for nios2
cxgb4: Add support for QSA modules
libcxgbi: fix freeing skb prematurely
cxgb4i: use set_wr_txq() to set tx queues
cxgb4i: handle non-pdu-aligned rx data
cxgb4i: additional types of negative advice
cxgb4/cxgb4i: set the max. pdu length in firmware
cxgb4i: fix credit check for tx_data_wr
cxgb4i: fix tx immediate data credit check
net: phy: export fixed_phy_register()
fib_trie: Fix trie balancing issue if new node pushes down existing node
vlan: Add ability to always enable TSO/UFO
r8169:update rtl8168g pcie ephy parameter
net: dsa: bcm_sf2: force link for all fixed PHY devices
fm10k/igb/ixgbe: Use dma_rmb on Rx descriptor reads
r8169: Use dma_rmb() and dma_wmb() for DescOwn checks
...
Pull IDE update from David Miller:
"Two small IDE layer adjustments"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide:
drivers: ide: Fix mostly harmless off-by-one hardcoded value
IDE: Deletion of an unnecessary check before the function call "module_put"
Pull sparc update from David Miller:
"Not a lot of stuff this time around, mostly bug fixing:
- Fix alignment of 32-bit crosscall datastructure on Leon, from
Andreas Larsson.
- Several fixes to the virtual disk driver on sparc64 by Dwight
Engen, including handling resets of the service domain properly"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
sunvdc: reconnect ldc after vds service domain restarts
sparc/ldc: create separate ldc_unbind from ldc_free
vio: create routines for inc,dec vio dring indexes
sunvdc: fix module unload/reload
sparc32, leon: Align ccall_info to prevent unaligned traps on crosscall
Pull ARM updates from Russell King:
"The major updates included in this update are:
- Clang compatible stack pointer accesses by Behan Webster.
- SA11x0 updates from Dmitry Eremin-Solenikov.
- kgdb handling of breakpoints with read-only text/modules
- Support for Privileged-no-execute feature on ARMv7 to prevent
userspace code execution by the kernel.
- AMBA primecell bus handling of irq-safe runtime PM
- Unwinding support for memset/memzero/memmove/memcpy functions
- VFP fixes for Krait CPUs and improvements in detecting the VFP
architecture
- A number of code cleanups (using pr_*, removing or reducing the
severity of a couple of kernel messages, splitting ftrace asm code
out to a separate file, etc.)
- Add machine name to stack dump output"
* 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: (62 commits)
ARM: 8247/2: pcmcia: sa1100: make use of device clock
ARM: 8246/2: pcmcia: sa1111: provide device clock
ARM: 8245/1: pcmcia: soc-common: enable/disable socket clocks
ARM: 8244/1: fbdev: sa1100fb: make use of device clock
ARM: 8243/1: sa1100: add a clock alias for sa1111 pcmcia device
ARM: 8242/1: sa1100: add cpu clock
ARM: 8221/1: PJ4: allow building in Thumb-2 mode
ARM: 8234/1: sa1100: reorder IRQ handling code
ARM: 8233/1: sa1100: switch to hwirq usage
ARM: 8232/1: sa1100: merge GPIO multiplexer IRQ to "normal" irq domain
ARM: 8231/1: sa1100: introduce irqdomains support
ARM: 8230/1: sa1100: shift IRQs by one
ARM: 8229/1: sa1100: replace irq numbers with names in irq driver
ARM: 8228/1: sa1100: drop entry-macro.S
ARM: 8227/1: sa1100: switch to MULTI_IRQ_HANDLER
ARM: 8241/1: Update processor_modes for hyp and monitor mode
ARM: 8240/1: MCPM: document mcpm_sync_init()
ARM: 8239/1: Introduce {set,clear}_pte_bit
ARM: 8238/1: mm: Refine set_memory_* functions
ARM: 8237/1: fix flush_pfn_alias
...
This series of patches fix various issues in STI drm driver.
Now HDMI i2c adapter could be selected in device tree
and plug detection doesn't use gpio anymore.
I also had fix some signal timing problems after testing the driver
on more hardware.
The remaining patches attemps to simplify the code and prepare
the next evolutions like DVO and auxiliary CRTC support
* 'drm-sti-next-2014-12-11' of http://git.linaro.org/people/benjamin.gaignard/kernel:
drm: sti: correctly cleanup CRTC and planes
drm: sti: add HQVDP plane
drm: sti: add cursor plane
drm: sti: enable auxiliary CRTC
drm: sti: fix delay in VTG programming
drm: sti: prepare sti_tvout to support auxiliary crtc
drm: sti: use drm_crtc_vblank_{on/off} instead of drm_vblank_{on/off}
drm: sti: fix hdmi avi infoframe
drm: sti: remove event lock while disabling vblank
drm: sti: simplify gdp code
drm: sti: clear all mixer control
drm: sti: remove gpio for HDMI hot plug detection
drm: sti: allow to change hdmi ddc i2c adapter
This time with:
* A new IOMMU-API call: iommu_map_sg() to map multiple
non-contiguous pages into an IO address space with only one
API call. This allows certain optimizations in the IOMMU
driver.
* DMAR device hotplug in the Intel VT-d driver. It is now
possible to hotplug the IOMMU itself.
* A new IOMMU driver for the Rockchip ARM platform.
* Couple of cleanups and improvements in the OMAP IOMMU driver.
* Nesting support for the ARM-SMMU driver.
* Various other small cleanups and improvements.
Please note that this time some branches were also pulled into other
trees, like the DRI and the Tegra tree. The VT-d branch was also pulled
into tip/x86/apic.
Some patches for the AMD IOMMUv2 driver are not in the IOMMU tree but
were merged by Andrew (or finally ended up in the DRI tree).
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Merge tag 'iommu-updates-v3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull IOMMU updates from Joerg Roedel:
"This time with:
- A new IOMMU-API call: iommu_map_sg() to map multiple non-contiguous
pages into an IO address space with only one API call. This allows
certain optimizations in the IOMMU driver.
- DMAR device hotplug in the Intel VT-d driver. It is now possible
to hotplug the IOMMU itself.
- A new IOMMU driver for the Rockchip ARM platform.
- Couple of cleanups and improvements in the OMAP IOMMU driver.
- Nesting support for the ARM-SMMU driver.
- Various other small cleanups and improvements.
Please note that this time some branches were also pulled into other
trees, like the DRI and the Tegra tree. The VT-d branch was also
pulled into tip/x86/apic.
Some patches for the AMD IOMMUv2 driver are not in the IOMMU tree but
were merged by Andrew (or finally ended up in the DRI tree)"
* tag 'iommu-updates-v3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (42 commits)
iommu: Decouple iommu_map_sg from CPU page size
iommu/vt-d: Fix an off-by-one bug in __domain_mapping()
pci, ACPI, iommu: Enhance pci_root to support DMAR device hotplug
iommu/vt-d: Enhance intel-iommu driver to support DMAR unit hotplug
iommu/vt-d: Enhance error recovery in function intel_enable_irq_remapping()
iommu/vt-d: Enhance intel_irq_remapping driver to support DMAR unit hotplug
iommu/vt-d: Search for ACPI _DSM method for DMAR hotplug
iommu/vt-d: Implement DMAR unit hotplug framework
iommu/vt-d: Dynamically allocate and free seq_id for DMAR units
iommu/vt-d: Introduce helper function dmar_walk_resources()
iommu/arm-smmu: add support for DOMAIN_ATTR_NESTING attribute
iommu/arm-smmu: Play nice on non-ARM/SMMU systems
iommu/amd: remove compiler warning due to IOMMU_CAP_NOEXEC
iommu/arm-smmu: add IOMMU_CAP_NOEXEC to the ARM SMMU driver
iommu: add capability IOMMU_CAP_NOEXEC
iommu/arm-smmu: change IOMMU_EXEC to IOMMU_NOEXEC
iommu/amd: Fix accounting of device_state
x86/vt-d: Fix incorrect bit operations in setting values
iommu/rockchip: Allow to compile with COMPILE_TEST
iommu/ipmmu-vmsa: Return proper error if devm_request_irq fails
...
Pull dmaengine updates from Vinod Koul:
"Main features this time are:
- BAM v1.3.0 support form qcom bam dma
- support for Allwinner sun8i dma
- atmels eXtended DMA Controller driver
- chancnt cleanup by Maxime
- fixes spread over drivers"
* 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma: (56 commits)
dmaenegine: Delete a check before free_percpu()
dmaengine: ioatdma: fix dma mapping errors
dma: cppi41: add a delay while setting the TD bit
dma: cppi41: wait longer for the HW to return the descriptor
dmaengine: fsl-edma: fixup reg offset and hw S/G support in big-endian model
dmaengine: fsl-edma: fix calculation of remaining bytes
drivers/dma/pch_dma: declare pch_dma_id_table as static
dmaengine: ste_dma40: fix error return code
dma: imx-sdma: clarify about firmware not found error
Documentation: devicetree: Fix Xilinx VDMA specification
dmaengine: pl330: update author info
dmaengine: clarify the issue_pending expectations
dmaengine: at_xdmac: Add DMA_PRIVATE
ARM: dts: at_xdmac: fix bad value of dma-cells in documentation
dmaengine: at_xdmac: fix missing spin_unlock
dmaengine: at_xdmac: fix a bug in transfer residue computation
dmaengine: at_xdmac: fix software lockup at_xdmac_tx_status()
dmaengine: at_xdmac: remove chancnt affectation
dmaengine: at_xdmac: prefer usage of readl/writel_relaxed
dmaengine: xdmac: fix print warning on dma_addr_t variable
...
For the following changes:
- Quite a few bug fixes
- A new driver for the powernv
- A new driver for the SMBus interface from the IPMI 2.0 specification
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Merge tag 'for-linus' of git://git.code.sf.net/p/openipmi/linux-ipmi
Pull IPMI driver updates from Corey Minyard:
- Quite a few bug fixes
- A new driver for the powernv
- A new driver for the SMBus interface from the IPMI 2.0 specification
* tag 'for-linus' of git://git.code.sf.net/p/openipmi/linux-ipmi:
ipmi: Check the BT interrupt enable periodically
ipmi: Fix attention handling for system interfaces
ipmi: Periodically check to see if irqs and messages are set right
drivers/char/ipmi: Add powernv IPMI driver
ipmi: Add SMBus interface driver (SSIF)
ipmi: Remove the now unused priority from SMI sender
ipmi: Remove the now unnecessary message queue
ipmi: Make the message handler easier to use for SMI interfaces
ipmi: Move message sending into its own function
ipmi: rename waiting_msgs to waiting_rcv_msgs
ipmi: Fix handling of BMC flags
ipmi: Initialize BMC device attributes
ipmi: Unregister previously registered driver in error case
ipmi: Use the proper type for acpi_handle
ipmi: Fix a bug in hot add/remove
ipmi: Remove useless sysfs_name parameters
ipmi: clean up the device handling for the bmc device
ipmi: Move the address source to string to ipmi-generic code
ipmi: Ignore SSIF in the PNP handling
