Declare the p_encode callbacks with the proper prototype instead of
casting to kxdreproc_t and losing all type safety.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Acked-by: Trond Myklebust <trond.myklebust@primarydata.com>
Declare the p_encode callbacks with the proper prototype instead of
casting to kxdreproc_t and losing all type safety.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Acked-by: Trond Myklebust <trond.myklebust@primarydata.com>
Pass struct rpc_request as the first argument instead of an untyped blob,
and mark the data object as const.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Merge yet more updates from Andrew Morton:
- various misc things
- kexec updates
- sysctl core updates
- scripts/gdb udpates
- checkpoint-restart updates
- ipc updates
- kernel/watchdog updates
- Kees's "rough equivalent to the glibc _FORTIFY_SOURCE=1 feature"
- "stackprotector: ascii armor the stack canary"
- more MM bits
- checkpatch updates
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (96 commits)
writeback: rework wb_[dec|inc]_stat family of functions
ARM: samsung: usb-ohci: move inline before return type
video: fbdev: omap: move inline before return type
video: fbdev: intelfb: move inline before return type
USB: serial: safe_serial: move __inline__ before return type
drivers: tty: serial: move inline before return type
drivers: s390: move static and inline before return type
x86/efi: move asmlinkage before return type
sh: move inline before return type
MIPS: SMP: move asmlinkage before return type
m68k: coldfire: move inline before return type
ia64: sn: pci: move inline before type
ia64: move inline before return type
FRV: tlbflush: move asmlinkage before return type
CRIS: gpio: move inline before return type
ARM: HP Jornada 7XX: move inline before return type
ARM: KVM: move asmlinkage before type
checkpatch: improve the STORAGE_CLASS test
mm, migration: do not trigger OOM killer when migrating memory
drm/i915: use __GFP_RETRY_MAYFAIL
...
- Include Intel XXV710 in INTx workaround (Alex Williamson)
- Make use of ERR_CAST() for error return (Dan Carpenter)
- Fix vfio_group release deadlock from iommu notifier (Alex Williamson)
- Unset KVM-VFIO attributes only on group match (Alex Williamson)
- Fix release path group/file matching with KVM-VFIO (Alex Williamson)
- Remove unnecessary lock uses triggering lockdep splat (Alex Williamson)
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Merge tag 'vfio-v4.13-rc1' of git://github.com/awilliam/linux-vfio
Pull VFIO updates from Alex Williamson:
- Include Intel XXV710 in INTx workaround (Alex Williamson)
- Make use of ERR_CAST() for error return (Dan Carpenter)
- Fix vfio_group release deadlock from iommu notifier (Alex Williamson)
- Unset KVM-VFIO attributes only on group match (Alex Williamson)
- Fix release path group/file matching with KVM-VFIO (Alex Williamson)
- Remove unnecessary lock uses triggering lockdep splat (Alex Williamson)
* tag 'vfio-v4.13-rc1' of git://github.com/awilliam/linux-vfio:
vfio: Remove unnecessary uses of vfio_container.group_lock
vfio: New external user group/file match
kvm-vfio: Decouple only when we match a group
vfio: Fix group release deadlock
vfio: Use ERR_CAST() instead of open coding it
vfio/pci: Add Intel XXV710 to hidden INTx devices
Subsystem:
- expose non volatile RAM using nvmem instead of open coding in many
drivers. Unfortunately, this option has to be enabled by default to not
break existing users.
- rtctest can now test for cutoff dates, showing when an RTC will start
failing to properly save time and date.
- new RTC registration functions to remove race conditions in drivers
Newly supported RTCs:
- Broadcom STB wake-timer
- Epson RX8130CE
- Maxim IC DS1308
- STMicroelectronics STM32H7
Drivers:
- ds1307: use regmap, use nvmem, more cleanups
- ds3232: temperature reading support
- gemini: renamed to ftrtc010
- m41t80: use CCF to expose the clock
- rv8803: use nvmem
- s3c: many cleanups
- st-lpc: fix y2106 bug
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Merge tag 'rtc-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux
Pull RTC updates from Alexandre Belloni:
"Here is the pull-request for the RTC subsystem for 4.13.
Subsystem:
- expose non volatile RAM using nvmem instead of open coding in many
drivers. Unfortunately, this option has to be enabled by default to
not break existing users.
- rtctest can now test for cutoff dates, showing when an RTC will
start failing to properly save time and date.
- new RTC registration functions to remove race conditions in drivers
Newly supported RTCs:
- Broadcom STB wake-timer
- Epson RX8130CE
- Maxim IC DS1308
- STMicroelectronics STM32H7
Drivers:
- ds1307: use regmap, use nvmem, more cleanups
- ds3232: temperature reading support
- gemini: renamed to ftrtc010
- m41t80: use CCF to expose the clock
- rv8803: use nvmem
- s3c: many cleanups
- st-lpc: fix y2106 bug"
* tag 'rtc-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (51 commits)
rtc: Remove wrong deprecation comment
nvmem: include linux/err.h from header
rtc: st-lpc: make it robust against y2038/2106 bug
rtc: rtctest: add check for problematic dates
tools: timer: add rtctest_setdate
rtc: ds1307: remove ds1307_remove
rtc: ds1307: use generic nvmem
rtc: ds1307: switch to rtc_register_device
rtc: rv8803: remove rv8803_remove
rtc: rv8803: use generic nvmem support
rtc: rv8803: switch to rtc_register_device
rtc: add generic nvmem support
rtc: at91rm9200: remove race condition
rtc: introduce new registration method
rtc: class separate id allocation from registration
rtc: class separate device allocation from registration
rtc: stm32: add STM32H7 RTC support
dt-bindings: rtc: stm32: add support for STM32H7
rtc: ds1307: add ds1308 variant
rtc: ds3232: add temperature support
...
General updates
* Cleanups and additional flash support for "dataflash" driver
* new driver for mchp23k256 SPI SRAM device
* improve handling of MTDs without eraseblocks (i.e., MTD_NO_ERASE)
* refactor and improve "sub-partition" handling with TRX partition
parser; partitions can now be created as sub-partitions of another
partition
SPI NOR updates, from Cyrille Pitchen and Marek Vasut:
* introduce support to the SPI 1-2-2 and 1-4-4 protocols.
* introduce support to the Double Data Rate (DDR) mode.
* introduce support to the Octo SPI protocols.
* add support to new memory parts for Spansion, Macronix and Winbond.
* add fixes for the Aspeed, STM32 and Cadence QSPI controler drivers.
* clean up the st_spi_fsm driver.
NAND updates, from Boris Brezillon:
* addition of on-die ECC support to Micron driver
* addition of helpers to help drivers choose most appropriate ECC
settings
* deletion of dead-code (cached programming and ->errstat() hook)
* make sure drivers that do not support the SET/GET FEATURES command
return ENOTSUPP use a dummy ->set/get_features implementation
returning -ENOTSUPP (required for Micron on-die ECC)
* change the semantic of ecc->write_page() for drivers setting the
NAND_ECC_CUSTOM_PAGE_ACCESS flag
* support exiting 'GET STATUS' command in default ->cmdfunc()
implementations
* change the prototype of ->setup_data_interface()
A bunch of driver related changes:
* various cleanup, fixes and improvements of the MTK driver
* OMAP DT bindings fixes
* support for ->setup_data_interface() in the fsmc driver
* support for imx7 in the gpmi driver
* finalization of the denali driver rework (thanks to Masahiro for the
work he's done on this driver)
* fix "bitflips in erased pages" handling in the ifc driver
* addition of PM ops and dynamic timing configuration to the atmel
driver
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Merge tag 'for-linus-20170713' of git://git.infradead.org/linux-mtd
Pull MTD updates from Brian Norris:
"General updates:
- Cleanups and additional flash support for "dataflash" driver
- new driver for mchp23k256 SPI SRAM device
- improve handling of MTDs without eraseblocks (i.e., MTD_NO_ERASE)
- refactor and improve "sub-partition" handling with TRX partition
parser; partitions can now be created as sub-partitions of another
partition
SPINOR updates, from Cyrille Pitchen and Marek Vasut:
- introduce support to the SPI 1-2-2 and 1-4-4 protocols.
- introduce support to the Double Data Rate (DDR) mode.
- introduce support to the Octo SPI protocols.
- add support to new memory parts for Spansion, Macronix and Winbond.
- add fixes for the Aspeed, STM32 and Cadence QSPI controler drivers.
- clean up the st_spi_fsm driver.
NAND updates, from Boris Brezillon:
- addition of on-die ECC support to Micron driver
- addition of helpers to help drivers choose most appropriate ECC
settings
- deletion of dead-code (cached programming and ->errstat() hook)
- make sure drivers that do not support the SET/GET FEATURES command
return ENOTSUPP use a dummy ->set/get_features implementation
returning -ENOTSUPP (required for Micron on-die ECC)
- change the semantic of ecc->write_page() for drivers setting the
NAND_ECC_CUSTOM_PAGE_ACCESS flag
- support exiting 'GET STATUS' command in default ->cmdfunc()
implementations
- change the prototype of ->setup_data_interface()
A bunch of driver related changes:
- various cleanup, fixes and improvements of the MTK driver
- OMAP DT bindings fixes
- support for ->setup_data_interface() in the fsmc driver
- support for imx7 in the gpmi driver
- finalization of the denali driver rework (thanks to Masahiro for
the work he's done on this driver)
- fix "bitflips in erased pages" handling in the ifc driver
- addition of PM ops and dynamic timing configuration to the atmel
driver"
* tag 'for-linus-20170713' of git://git.infradead.org/linux-mtd: (118 commits)
Documentation: ABI: mtd: describe "offset" more precisely
mtd: Fix check in mtd_unpoint()
mtd: nand: mtk: release lock on error path
mtd: st_spi_fsm: remove SPINOR_OP_RDSR2 and use SPINOR_OP_RDCR instead
mtd: spi-nor: cqspi: remove duplicate const
mtd: spi-nor: Add support for Spansion S25FL064L
mtd: spi-nor: Add support for mx66u51235f
mtd: nand: mtk: add ->setup_data_interface() hook
mtd: nand: mtk: remove unneeded mtk_ecc_hw_init from mtk_ecc_resume
mtd: nand: mtk: remove unneeded mtk_nfc_hw_init from mtk_nfc_resume
mtd: nand: mtk: disable ecc irq when writing page with hwecc
mtd: nand: mtk: fix incorrect register setting order about ecc irq
mtd: partitions: fixup some allocate_partition() whitespace
mtd: parsers: trx: fix pr_err format for printing offset
MAINTAINERS: Update SPI NOR subsystem git repositories
mtd: extract TRX parser out of bcm47xxpart into a separated module
mtd: partitions: add support for partition parsers
mtd: partitions: add support for subpartitions
mtd: partitions: rename "master" to the "parent" where appropriate
mtd: partitions: remove sysfs files when deleting all master's partitions
...
This release cycle's changes include mostly updates and cleanups to
existing drivers along with a few cleanups to the core, documentation
and device tree bindings.
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Merge tag 'pwm/for-4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm
Pull pwm updates from Thierry Reding:
"This release cycle's changes include mostly updates and cleanups to
existing drivers along with a few cleanups to the core, documentation
and device tree bindings"
* tag 'pwm/for-4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm:
pwm: cros-ec: Fix transposed param settings
pwm: meson: Improve PWM calculation precision
dt-bindings: pwm: meson: Add compatible for gxbb ao PWMs
pwm: meson: Add compatible for the gxbb ao PWMs
pwm: sun4i: Drop legacy callbacks
pwm: sun4i: Switch to atomic PWM
pwm: sun4i: Improve hardware read out
pwm: hibvt: Constify hibvt_pwm_ops
pwm: Silently error out on EPROBE_DEFER
pwm: Standardize document format
pwm: bfin: Remove unneeded error message
dt-bindings: pwm: Update STM32 timers clock names
dt-bindings: pwm: Add R-Car M3-W device tree bindings
pwm: tegra: Set maximum pwm clock source per SoC tapeout
* two fixes for twl4030-charger
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Merge tag 'for-v4.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply
Pull power supply fixes from Reichel:
"I have two more fixes for the power-supply subsystem:
- two fixes for twl4030-charger"
* tag 'for-v4.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply:
power: supply: twl4030-charger: add deferred probing for phy and iio
power: supply: twl4030-charger: move irq allocation to just before irqs are enabled
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Merge tag 'drm-fixes-for-v4.13-rc1' of git://people.freedesktop.org/~airlied/linux
Pull more drm updates from Dave Airlie:
"i915, amd and some core fixes + mediatek color support.
Some fixes tree came in since the main pull request for rc1, primarily
i915 and drm-misc and one amd fix. The drm core vblank regression fix
is probably the most important thing.
I've also added the mediatek feature pull, it wasn't that big and
didn't look like it would have any impact outside of mediatek, in fact
it looks to just be a single feature, and some cleanups"
* tag 'drm-fixes-for-v4.13-rc1' of git://people.freedesktop.org/~airlied/linux: (31 commits)
drm/i915: Make DP-MST connector info work
drm/i915/gvt: Use fence error from GVT request for workload status
drm/i915/gvt: remove scheduler_mutex in per-engine workload_thread
drm/i915/gvt: Revert "drm/i915/gvt: Fix possible recursive locking issue"
drm/i915/gvt: Audit the command buffer address
drm/i915/gvt: Fix a memory leak in intel_gvt_init_gtt()
drm/rockchip: fix NULL check on devm_kzalloc() return value
drm/i915/fbdev: Check for existence of ifbdev->vma before operations
drm/radeon: Fix eDP for single-display iMac10,1 (v2)
drm/i915: Hold RPM wakelock while initializing OA buffer
drm/i915/cnl: Fix the CURSOR_COEFF_MASK used in DDI Vswing Programming
drm/i915/cfl: Fix Workarounds.
drm/i915: Avoid undefined behaviour of "u32 >> 32"
drm/i915: reintroduce VLV/CHV PFI programming power domain workaround
drm/i915: Fix an error checking test
drm/i915: Disable MSI for all pre-gen5
drm/atomic: Add missing drm_atomic_state_clear to atomic_remove_fb
drm: vblank: Fix vblank timestamp update
drm/i915/gvt: Make function dpy_reg_mmio_readx safe
drm/mediatek: separate color module to fixup error memory reallocation
...
DRM_IOCTL_VERSION is supposed to update the name_len/date_len/desc_len
fields to user.
Fixes: 012c6741c6 ("switch compat_drm_version() to drm_ioctl_kernel()")
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The current check will always be true and will always jump to
err1, this looks dubious to me. I believe && should be used
instead of ||.
Detected by CoverityScan, CID#1450120 ("Logically Dead Code")
Fixes: 107c1d0a99 ("svcrdma: Avoid Send Queue overflow")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
So far Linux supported only two levels of MTD devices so we didn't need
a very precise description for this sysfs file. With commit
97519dc52b ("mtd: partitions: add support for subpartitions") there
is support for a tree structure so we should have more precise
description. Using "parent" and "flash device" makes it more accurate.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
The isofs patch needs a small fix to handle a signed/unsigned comparison that
the compiler didn't flag - thanks to Dan for catching it.
It should be noted, however, the session number handing appears to be incorrect
between where it is parsed and where it is used.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
There is a flaw in the Hyper-V SynIC implementation in KVM: when message
page or event flags page is enabled by setting the corresponding msr,
KVM zeroes it out. This is problematic because on migration the
corresponding MSRs are loaded on the destination, so the content of
those pages is lost.
This went unnoticed so far because the only user of those pages was
in-KVM hyperv synic timers, which could continue working despite that
zeroing.
Newer QEMU uses those pages for Hyper-V VMBus implementation, and
zeroing them breaks the migration.
Besides, in newer QEMU the content of those pages is fully managed by
QEMU, so zeroing them is undesirable even when writing the MSRs from the
guest side.
To support this new scheme, introduce a new capability,
KVM_CAP_HYPERV_SYNIC2, which, when enabled, makes sure that the synic
pages aren't zeroed out in KVM.
Signed-off-by: Roman Kagan <rkagan@virtuozzo.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
The backwards_tsc_observed global introduced in commit 16a9602 is never
reset to false. If a VM happens to be running while the host is suspended
(a common source of the TSC jumping backwards), master clock will never
be enabled again for any VM. In contrast, if no VM is running while the
host is suspended, master clock is unaffected. This is inconsistent and
unnecessarily strict. Let's track the backwards_tsc_observed variable
separately and let each VM start with a clean slate.
Real world impact: My Windows VMs get slower after my laptop undergoes a
suspend/resume cycle. The only way to get the perf back is unloading and
reloading the kvm module.
Signed-off-by: Ladi Prosek <lprosek@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Buffer heads referencing indirect blocks may not be released if the file
is truncated at the right time. This happens because ext2_get_branch()
returns NULL when it finds the whole chain of indirect blocks already
set, and when truncate alters the chain this value of NULL is
treated as the address of the last head to be released. Handle this in the
same way as it's done after the got_it label.
Signed-off-by: Ernesto A. Fernández <ernesto.mnd.fernandez@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
The existing code gives an incorrect pointer value.
The buffer pointer 'buf' was of type unsigned short *, and 'count' was a
number in bytes. A cast of buf should have been used.
However, instead of casting, just change the code to use u32 pointers.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Fixes: 8185e51f358a: ("mmc: tmio-mmc: add support for 32bit data port")
Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This extends the existing set of bulk helpers with prepare_enable and
disable_unprepare variants.
Cc: Russell King <linux@armlinux.org.uk>,
Cc: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Pull sysctl fix from Eric Biederman:
"A rather embarassing and hard to hit bug was merged into 4.11-rc1.
Andrei Vagin tracked this bug now and after some staring at the code
I came up with a fix"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
proc: Fix proc_sys_prune_dcache to hold a sb reference
Pull networking fixes from David Miller:
1) Fix 64-bit division in mlx5 IPSEC offload support, from Ilan Tayari
and Arnd Bergmann.
2) Fix race in statistics gathering in bnxt_en driver, from Michael
Chan.
3) Can't use a mutex in RCU reader protected section on tap driver, from
Cong WANG.
4) Fix mdb leak in bridging code, from Eduardo Valentin.
5) Fix free of wrong pointer variable in nfp driver, from Dan Carpenter.
6) Buffer overflow in brcmfmac driver, from Arend van SPriel.
7) ioremap_nocache() return value needs to be checked in smsc911x
driver, from Alexey Khoroshilov.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (34 commits)
net: stmmac: revert "support future possible different internal phy mode"
sfc: don't read beyond unicast address list
datagram: fix kernel-doc comments
socket: add documentation for missing elements
smsc911x: Add check for ioremap_nocache() return code
brcmfmac: fix possible buffer overflow in brcmf_cfg80211_mgmt_tx()
net: hns: Bugfix for Tx timeout handling in hns driver
net: ipmr: ipmr_get_table() returns NULL
nfp: freeing the wrong variable
mlxsw: spectrum_switchdev: Check status of memory allocation
mlxsw: spectrum_switchdev: Remove unused variable
mlxsw: spectrum_router: Fix use-after-free in route replace
mlxsw: spectrum_router: Add missing rollback
samples/bpf: fix a build issue
bridge: mdb: fix leak on complete_info ptr on fail path
tap: convert a mutex to a spinlock
cxgb4: fix BUG() on interrupt deallocating path of ULD
qed: Fix printk option passed when printing ipv6 addresses
net: Fix minor code bug in timestamping.txt
net: stmmac: Make 'alloc_dma_[rt]x_desc_resources()' look even closer
...
I made the mistake of upgrading my desktop to the new Fedora 26 that
comes with gcc-7.1.1.
There's nothing wrong per se that I've noticed, but I now have 1500
lines of warnings, mostly from the new format-truncation warning
triggering all over the tree.
We use 'snprintf()' and friends in a lot of places, and often know that
the numbers are fairly small (ie a controller index or similar), but gcc
doesn't know that, and sees an 'int', and thinks that it could be some
huge number. And then complains when our buffers are not able to fit
the name for the ten millionth controller.
These warnings aren't necessarily bad per se, and we probably want to
look through them subsystem by subsystem, but at least during the merge
window they just mean that I can't even see if somebody is introducing
any *real* problems when I pull.
So warnings disabled for now.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
drm/i915 fixes for v4.13-rc1
* tag 'drm-intel-next-fixes-2017-07-11' of git://anongit.freedesktop.org/git/drm-intel:
drm/i915: Make DP-MST connector info work
drm/i915/gvt: Use fence error from GVT request for workload status
drm/i915/gvt: remove scheduler_mutex in per-engine workload_thread
drm/i915/gvt: Revert "drm/i915/gvt: Fix possible recursive locking issue"
drm/i915/gvt: Audit the command buffer address
drm/i915/gvt: Fix a memory leak in intel_gvt_init_gtt()
drm/i915/fbdev: Check for existence of ifbdev->vma before operations
drm/i915: Hold RPM wakelock while initializing OA buffer
drm/i915/cnl: Fix the CURSOR_COEFF_MASK used in DDI Vswing Programming
drm/i915/cfl: Fix Workarounds.
drm/i915: Avoid undefined behaviour of "u32 >> 32"
drm/i915: reintroduce VLV/CHV PFI programming power domain workaround
drm/i915: Fix an error checking test
drm/i915: Disable MSI for all pre-gen5
drm/i915/gvt: Make function dpy_reg_mmio_readx safe
drm/i915/gvt: Don't read ADPA_CRT_HOTPLUG_MONITOR from host
drm/i915/gvt: Set initial PORT_CLK_SEL vreg for BDW
drm/i915/gvt: Fix inconsistent locks holding sequence
drm/i915/gvt: Fix possible recursive locking issue
This include new color format support and some fixups.
* 'mediatek-drm-next-4.13' of https://github.com/ckhu-mediatek/linux.git-tags:
drm/mediatek: separate color module to fixup error memory reallocation
drm/mediatek: check for memory allocation failure
drm/mediatek: re-phrase DRM_INFO error message
drm/mediatek: use platform_register_drivers
drm/mediatek: Support UYVY and YUYV format for overlay
Summary of modules changes for the 4.13 merge window:
- Minor code cleanups
- Avoid accessing mod struct prior to checking module struct version, from Kees
- Fix racy atomic inc/dec logic of kmod_concurrent_max in kmod, from Luis
Signed-off-by: Jessica Yu <jeyu@kernel.org>
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Merge tag 'modules-for-v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux
Pull modules updates from Jessica Yu:
"Summary of modules changes for the 4.13 merge window:
- Minor code cleanups
- Avoid accessing mod struct prior to checking module struct version,
from Kees
- Fix racy atomic inc/dec logic of kmod_concurrent_max in kmod, from
Luis"
* tag 'modules-for-v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux:
module: make the modinfo name const
kmod: reduce atomic operations on kmod_concurrent and simplify
module: use list_for_each_entry_rcu() on find_module_all()
kernel/module.c: suppress warning about unused nowarn variable
module: Add module name to modinfo
module: Pass struct load_info into symbol checks
Commit 76cde7e495 (PCI / PM: Make PCIe PME interrupts wake up from
suspend-to-idle) went too far with preventing pcie_pme_work_fn() from
clearing the root port's PME Status and re-enabling the PME interrupt
which should be done for PMEs to work correctly after system resume.
The failing scenario is as follows:
1. pcie_pme_suspend() finds that the PME IRQ should be designated
for system wakeup, so it calls enable_irq_wake() and then sets
data->suspend_level to PME_SUSPEND_WAKEUP.
2. PME interrupt happens at this point.
3. pcie_pme_irq() runs, disables the PME interrupt and queues up
the execution of pcie_pme_work_fn().
4. pcie_pme_work_fn() runs before pcie_pme_resume() and breaks out
of the loop right away, because data->suspend_level is not
PME_SUSPEND_NONE, and it doesn't re-enable the PME interrupt
for the same reason.
5. pcie_pme_resume() runs and simply calls disable_irq_wake()
without re-enabling the PME interrupt (because data->suspend_level
is not PME_SUSPEND_NONE), so the PME interrupt remains disabled
and the PME Status remains set.
To fix this notice that there is no reason why pcie_pme_work_fn()
should behave in a special way during system resume if the PME
interrupt is not disabled by pcie_pme_suspend() and partially revert
commit 76cde7e495 and restore the previous (and correct) behavior
of pcie_pme_work_fn().
Fixes: 76cde7e495 (PCI / PM: Make PCIe PME interrupts wake up from suspend-to-idle)
Reported-and-tested-by: Naresh Solanki <naresh.solanki@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Currently the writeback statistics code uses a percpu counters to hold
various statistics. Furthermore we have 2 families of functions - those
which disable local irq and those which doesn't and whose names begin
with double underscore. However, they both end up calling
__add_wb_stats which in turn calls percpu_counter_add_batch which is
already irq-safe.
Exploiting this fact allows to eliminated the __wb_* functions since
they don't add any further protection than we already have.
Furthermore, refactor the wb_* function to call __add_wb_stat directly
without the irq-disabling dance. This will likely result in better
runtime of code which deals with modifying the stat counters.
While at it also document why percpu_counter_add_batch is in fact
preempt and irq-safe since at least 3 people got confused.
Link: http://lkml.kernel.org/r/1498029937-27293-1-git-send-email-nborisov@suse.com
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Acked-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: Josef Bacik <jbacik@fb.com>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Make the code like the rest of the kernel.
Link: http://lkml.kernel.org/r/bc5927726abc70d7c066df7ab4cb7cfce4a7b577.1499284835.git.joe@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Make the code like the rest of the kernel.
But there is an oddity here because the inline should probably be removed.
It's an extern function in intelfb.h and it is used in intelfbdrv.c and
intelfbhw.c.
The inline is kept here as I suppose it's possible for some compiler to
make the uses inline in intelfbdrv and and also create an external
function for intelfbhw.
Link: http://lkml.kernel.org/r/8ba151a1fdc84e42cbf4aafc798513c0158edee1.1499284835.git.joe@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Cc: Maik Broemme <mbroemme@libmpq.org>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Make the code like the rest of the kernel.
Also use inline instead of __inline__.
Link: http://lkml.kernel.org/r/a5072b74b6c293e6ec93c4900482e9d3267f15b2.1499284835.git.joe@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Cc: Johan Hovold <johan@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Make the code like the rest of the kernel.
Link: http://lkml.kernel.org/r/55d3e89d50bb03d603bfb28019fab07f48bdc714.1499284835.git.joe@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Cc: Pat Gefre <pfg@sgi.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jiri Slaby <jslaby@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Make the code like the rest of the kernel.
Link: http://lkml.kernel.org/r/3f980cd89084ae09716353aba3171e4b3815e690.1499284835.git.joe@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Cc: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Cc: Ursula Braun <ubraun@linux.vnet.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Make the code like the rest of the kernel.
Link: http://lkml.kernel.org/r/1cd3d401626e51ea0e2333a860e76e80bc560a4c.1499284835.git.joe@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Cc: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Make the code like the rest of the kernel.
Link: http://lkml.kernel.org/r/f81bb2a67a97b1fd8b6ea99bd350d8a0f6864fb1.1499284835.git.joe@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Rich Felker <dalias@libc.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Make the code like the rest of the kernel.
Link: http://lkml.kernel.org/r/14db9c166d5b68efa77e337cfe49bb9b29bca3f7.1499284835.git.joe@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Greg Ungerer <gerg@linux-m68k.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Make the use of inline like the rest of the kernel.
Link: http://lkml.kernel.org/r/f42b2202bd0d4e7ccf79ce5348bb255a035e67bb.1499284835.git.joe@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Make the use of inline like the rest of the kernel.
Link: http://lkml.kernel.org/r/d47074493af80ce12590340294bc49618165c30d.1499284835.git.joe@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Move inline to be like the rest of the kernel.
Link: http://lkml.kernel.org/r/6bf1bec049897c4158f698b866810f47c728f233.1499284835.git.joe@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Convert 'u8 inline' to 'inline u8' to be the same style used by the rest
of the kernel.
Miscellanea:
jornada_ssp_reverse is an odd function.
It is declared inline but is also EXPORT_SYMBOL.
It is also apparently only used by jornada720_ssp.c
Likely the EXPORT_SYMBOL could be removed and the function
converted to static.
The addition of static and removal of EXPORT_SYMBOL was not done.
Link: http://lkml.kernel.org/r/5bd3b2bf39c6c9caf773949f18158f8f5ec08582.1499284835.git.joe@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Cc: Russell King <linux@armlinux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
asmlinkage is either 'extern "C"' or blank.
Move the uses of asmlinkage before the return types to be similar
to the rest of the kernel.
Link: http://lkml.kernel.org/r/005b8e120650c6a13b541e420f4e3605603fe9e6.1499284835.git.joe@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Cc: Christoffer Dall <christoffer.dall@linaro.org>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krcmar <rkrcmar@redhat.com>
Cc: Russell King <linux@armlinux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Make sure static, extern, and asmlinkage appear before a specific type.
e.g.:
int asmlinkage foo(void)
is better written
asmlinkage int foo(void)
Link: http://lkml.kernel.org/r/31704c96df2d5fd9df0b41165940a7a4feb16a63.1499284835.git.joe@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Christoph Hellwig
Linus Torvalds
Filipe Manana
Jeffy Chen
Colin Ian King
Rafał Miłecki
David Howells
Roman Kagan
Ladi Prosek
Ernesto A. Fernández
Chris Brandt
Grzegorz Sluja
Bjorn Andersson
Dave Airlie
Rafael J. Wysocki
Nikolay Borisov
Joe Perches