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%pF and %pf are functionally equivalent to %pS and %ps conversion
specifiers. The former are deprecated, therefore switch the current users
to use the preferred variant.
The changes have been produced by the following command:
git grep -l '%p[fF]' | grep -v '^\(tools\|Documentation\)/' | \
while read i; do perl -i -pe 's/%pf/%ps/g; s/%pF/%pS/g;' $i; done
And verifying the result.
Link: http://lkml.kernel.org/r/20190325193229.23390-1-sakari.ailus@linux.intel.com
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: sparclinux@vger.kernel.org
Cc: linux-um@lists.infradead.org
Cc: xen-devel@lists.xenproject.org
Cc: linux-acpi@vger.kernel.org
Cc: linux-pm@vger.kernel.org
Cc: drbd-dev@lists.linbit.com
Cc: linux-block@vger.kernel.org
Cc: linux-mmc@vger.kernel.org
Cc: linux-nvdimm@lists.01.org
Cc: linux-pci@vger.kernel.org
Cc: linux-scsi@vger.kernel.org
Cc: linux-btrfs@vger.kernel.org
Cc: linux-f2fs-devel@lists.sourceforge.net
Cc: linux-mm@kvack.org
Cc: ceph-devel@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: David Sterba <dsterba@suse.com> (for btrfs)
Acked-by: Mike Rapoport <rppt@linux.ibm.com> (for mm/memblock.c)
Acked-by: Bjorn Helgaas <bhelgaas@google.com> (for drivers/pci)
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk
Pull printk updates from Petr Mladek:
- Allow to sort mixed lines by an extra information about the caller
- Remove no longer used LOG_PREFIX.
- Some clean up and documentation update.
* tag 'printk-for-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk:
printk/docs: Add extra integer types to printk-formats
printk: Remove no longer used LOG_PREFIX.
lib/vsprintf: Remove %pCr remnant in comment
printk: Pass caller information to log_store().
printk: Add caller information to printk() output.
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git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull kselftest update fromShuah Khan:
- ir test compile warnings fixes
- seccomp test fixes and improvements from Tycho Andersen and Kees Cook
- ftrace fixes to non-POSIX-compliant constructs in colored output code
and handling absence of tput from Juerg Haefliger
* tag 'linux-kselftest-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
selftests/ftrace: Handle the absence of tput
selftests/ftrace: Replace \e with \033
selftests/ftrace: Replace echo -e with printf
selftests: ir: skip when non-root user runs the test
selftests: ir: skip when lirc device doesn't exist.
selftests: ir: fix warning: "%s" directive output may be truncated ’ directive output may be truncated
selftests/seccomp: Actually sleep for 1/10th second
selftests/harness: Update named initializer syntax
selftests: unshare userns in seccomp pidns testcases
selftests: set NO_NEW_PRIVS bit in seccomp user tests
selftests: skip seccomp get_metadata test if not real root
selftest: include stdio.h in kselftest.h
selftests: fix typo in seccomp_bpf.c
selftests: don't kill child immediately in get_metadata() test
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git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull gcc-plugins updates from Kees Cook:
"This adds additional type coverage to the existing structleak plugin
and adds a large set of selftests to help evaluate stack variable
zero-initialization coverage.
That can be used to test whatever instrumentation might be performing
zero-initialization: either with the structleak plugin or with Clang's
coming "-ftrivial-auto-var-init=zero" option.
Summary:
- Add scalar and array initialization coverage
- Refactor Kconfig to make options more clear
- Add self-test module for testing automatic initialization"
* tag 'gcc-plugins-v5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
lib: Introduce test_stackinit module
gcc-plugins: structleak: Generalize to all variable types
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git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull pstore cleanups from Kees Cook:
- Remove some needless memory allocations (Yue Hu, Kees Cook)
- Add zero-length checks to avoid no-op calls (Yue Hu)
* tag 'pstore-v5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
pstore/ram: Avoid needless alloc during header write
pstore/ram: Add kmsg hlen zero check to ramoops_pstore_write()
pstore/ram: Move initialization earlier
pstore: Avoid writing records with zero size
pstore/ram: Replace dummy_data heap memory with stack memory
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Fixes: ("MAINTAINERS: Update from @linux.vnet.ibm.com to @linux.ibm.com")
Reviewed-by: Paul E. McKenney <paulmck@linux.ibm.com>
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Pull io_uring IO interface from Jens Axboe:
"Second attempt at adding the io_uring interface.
Since the first one, we've added basic unit testing of the three
system calls, that resides in liburing like the other unit tests that
we have so far. It'll take a while to get full coverage of it, but
we're working towards it. I've also added two basic test programs to
tools/io_uring. One uses the raw interface and has support for all the
various features that io_uring supports outside of standard IO, like
fixed files, fixed IO buffers, and polled IO. The other uses the
liburing API, and is a simplified version of cp(1).
This adds support for a new IO interface, io_uring.
io_uring allows an application to communicate with the kernel through
two rings, the submission queue (SQ) and completion queue (CQ) ring.
This allows for very efficient handling of IOs, see the v5 posting for
some basic numbers:
https://lore.kernel.org/linux-block/20190116175003.17880-1-axboe@kernel.dk/
Outside of just efficiency, the interface is also flexible and
extendable, and allows for future use cases like the upcoming NVMe
key-value store API, networked IO, and so on. It also supports async
buffered IO, something that we've always failed to support in the
kernel.
Outside of basic IO features, it supports async polled IO as well.
This particular feature has already been tested at Facebook months ago
for flash storage boxes, with 25-33% improvements. It makes polled IO
actually useful for real world use cases, where even basic flash sees
a nice win in terms of efficiency, latency, and performance. These
boxes were IOPS bound before, now they are not.
This series adds three new system calls. One for setting up an
io_uring instance (io_uring_setup(2)), one for submitting/completing
IO (io_uring_enter(2)), and one for aux functions like registrating
file sets, buffers, etc (io_uring_register(2)). Through the help of
Arnd, I've coordinated the syscall numbers so merge on that front
should be painless.
Jon did a writeup of the interface a while back, which (except for
minor details that have been tweaked) is still accurate. Find that
here:
https://lwn.net/Articles/776703/
Huge thanks to Al Viro for helping getting the reference cycle code
correct, and to Jann Horn for his extensive reviews focused on both
security and bugs in general.
There's a userspace library that provides basic functionality for
applications that don't need or want to care about how to fiddle with
the rings directly. It has helpers to allow applications to easily set
up an io_uring instance, and submit/complete IO through it without
knowing about the intricacies of the rings. It also includes man pages
(thanks to Jeff Moyer), and will continue to grow support helper
functions and features as time progresses. Find it here:
git://git.kernel.dk/liburing
Fio has full support for the raw interface, both in the form of an IO
engine (io_uring), but also with a small test application (t/io_uring)
that can exercise and benchmark the interface"
* tag 'io_uring-2019-03-06' of git://git.kernel.dk/linux-block:
io_uring: add a few test tools
io_uring: allow workqueue item to handle multiple buffered requests
io_uring: add support for IORING_OP_POLL
io_uring: add io_kiocb ref count
io_uring: add submission polling
io_uring: add file set registration
net: split out functions related to registering inflight socket files
io_uring: add support for pre-mapped user IO buffers
block: implement bio helper to add iter bvec pages to bio
io_uring: batch io_kiocb allocation
io_uring: use fget/fput_many() for file references
fs: add fget_many() and fput_many()
io_uring: support for IO polling
io_uring: add fsync support
Add io_uring IO interface
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Pull block layer updates from Jens Axboe:
"Not a huge amount of changes in this round, the biggest one is that we
finally have Mings multi-page bvec support merged. Apart from that,
this pull request contains:
- Small series that avoids quiescing the queue for sysfs changes that
match what we currently have (Aleksei)
- Series of bcache fixes (via Coly)
- Series of lightnvm fixes (via Mathias)
- NVMe pull request from Christoph. Nothing major, just SPDX/license
cleanups, RR mp policy (Hannes), and little fixes (Bart,
Chaitanya).
- BFQ series (Paolo)
- Save blk-mq cpu -> hw queue mapping, removing a pointer indirection
for the fast path (Jianchao)
- fops->iopoll() added for async IO polling, this is a feature that
the upcoming io_uring interface will use (Christoph, me)
- Partition scan loop fixes (Dongli)
- mtip32xx conversion from managed resource API (Christoph)
- cdrom registration race fix (Guenter)
- MD pull from Song, two minor fixes.
- Various documentation fixes (Marcos)
- Multi-page bvec feature. This brings a lot of nice improvements
with it, like more efficient splitting, larger IOs can be supported
without growing the bvec table size, and so on. (Ming)
- Various little fixes to core and drivers"
* tag 'for-5.1/block-20190302' of git://git.kernel.dk/linux-block: (117 commits)
block: fix updating bio's front segment size
block: Replace function name in string with __func__
nbd: propagate genlmsg_reply return code
floppy: remove set but not used variable 'q'
null_blk: fix checking for REQ_FUA
block: fix NULL pointer dereference in register_disk
fs: fix guard_bio_eod to check for real EOD errors
blk-mq: use HCTX_TYPE_DEFAULT but not 0 to index blk_mq_tag_set->map
block: optimize bvec iteration in bvec_iter_advance
block: introduce mp_bvec_for_each_page() for iterating over page
block: optimize blk_bio_segment_split for single-page bvec
block: optimize __blk_segment_map_sg() for single-page bvec
block: introduce bvec_nth_page()
iomap: wire up the iopoll method
block: add bio_set_polled() helper
block: wire up block device iopoll method
fs: add an iopoll method to struct file_operations
loop: set GENHD_FL_NO_PART_SCAN after blkdev_reread_part()
loop: do not print warn message if partition scan is successful
block: bounce: make sure that bvec table is updated
...
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Pull libata updates from Jens Axboe:
"Pretty quiet round: a few small fixes, comment typo, and most notably
a low level driver for the PATA Buddha controller"
* tag 'for-5.1/libata-20190301' of git://git.kernel.dk/linux-block:
ata: libahci: Only warn for AHCI_HFLAG_MULTI_MSI set when genuine custom irq handler implemented
libata: fix a typo in comment
ata: macio: Use of_node_name_eq for node name comparisons
ata: pata_samsung_cf: simplify getting .driver_data
ata: pata_platform: Add IRQF_SHARED to IRQ flags
ata: pata_of_platform: Allow to use 16-bit wide data transfer
ata: add Buddha PATA controller driver
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO updates from Linus Walleij:
"This is the bulk of GPIO changes for the v5.1 cycle:
Core changes:
- The big change this time around is the irqchip handling in the
qualcomm pin controllers, closely coupled with the gpiochip. This
rework, in a classic fall-between-the-chairs fashion has been
sidestepped for too long.
The Qualcomm IRQchips using the SPMI and SSBI transport mechanisms
have been rewritten to use hierarchical irqchip. This creates the
base from which I intend to gradually pull support for hierarchical
irqchips into the gpiolib irqchip helpers to cut down on duplicate
code.
We have too many hacks in the kernel because people have been
working around the missing hierarchical irqchip for years, and once
it was there, noone understood it for a while. We are now slowly
adapting to using it.
This is why this pull requests include changes to MFD, SPMI,
IRQchip core and some ARM Device Trees pertaining to the Qualcomm
chip family. Since Qualcomm have so many chips and such large
deployments it is paramount that this platform gets this right, and
now it (hopefully) does.
- Core support for pull-up and pull-down configuration, also from the
device tree. When a simple GPIO chip supports an "off or on" pull-up
or pull-down resistor, we provide a way to set this up using
machine descriptors or device tree.
If more elaborate control of pull up/down (such as resistance shunt
setting) is required, drivers should be phased over to use pin
control. We do not yet provide a userspace ABI for this pull
up-down setting but I suspect the makers are going to ask for it
soon enough. PCA953x is the first user of this new API.
- The GPIO mockup driver has been revamped after some discussion
improving the IRQ simulator in the process.
The idea is to make it possible to use the mockup for both testing
and virtual prototyping, e.g. when you do not yet have a GPIO
expander to play with but really want to get something to develop
code around before hardware is available. It's neat. The blackbox
testing usecase is currently making its way into kernelci.
- ACPI GPIO core preserves non direction flags when updating flags.
- A new device core helper for devm_platform_ioremap_resource() is
funneled through the GPIO tree with Greg's ACK.
New drivers:
- TQ-Systems QTMX86 GPIO controllers (using port-mapped I/O)
- Gateworks PLD GPIO driver (vaccumed up from OpenWrt)
- AMD G-Series PCH (Platform Controller Hub) GPIO driver.
- Fintek F81804 & F81966 subvariants.
- PCA953x now supports NXP PCAL6416.
Driver improvements:
- IRQ support on the Nintendo Wii (Hollywood) GPIO.
- get_direction() support for the MVEBU driver.
- Set the right output level on SAMA5D2.
- Drop the unused irq trigger setting on the Spreadtrum driver.
- Wakeup support for PCA953x.
- A slew of cleanups in the various Intel drivers"
* tag 'gpio-v5.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (110 commits)
gpio: gpio-omap: fix level interrupt idling
gpio: amd-fch: Set proper output level for direction_output
x86: apuv2: remove unused variable
gpio: pca953x: Use PCA_LATCH_INT
platform/x86: fix PCENGINES_APU2 Kconfig warning
gpio: pca953x: Fix dereference of irq data in shutdown
gpio: amd-fch: Fix type error found by sparse
gpio: amd-fch: Drop const from resource
gpio: mxc: add check to return defer probe if clock tree NOT ready
gpio: ftgpio: Register per-instance irqchip
gpio: ixp4xx: Add DT bindings
x86: pcengines apuv2 gpio/leds/keys platform driver
gpio: AMD G-Series PCH gpio driver
drivers: depend on HAS_IOMEM for devm_platform_ioremap_resource()
gpio: tqmx86: Set proper output level for direction_output
gpio: sprd: Change to use SoC compatible string
gpio: sprd: Use SoC compatible string instead of wildcard string
gpio: of: Handle both enable-gpio{,s}
gpio: of: Restrict enable-gpio quirk to regulator-gpio
gpio: davinci: use devm_platform_ioremap_resource()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull MFD updates from Lee Jones:
"New Drivers:
- Add STMPE ADC Input driver
- Add STMicroelectronics STPMIC1 Parent driver
- Add STMicroelectronics STPMIC1 OnKey Misc driver
- Add STMicroelectronics STPMIC1 Watchdog driver
- Add Cirrus Logic Lochnagar Parent driver
- Add TQ-Systems TQMX86 Parent driver
New Device Support:
- Add support for ADC to STMPE
New (or moved) Functionality:
- Move Lightbar functionality to its own driver; cros_ec_lightbar
- Move VBC functionality to its own driver; cros_ec_vbc
- Move VBC functionality to its own driver; cros_ec_vbc
- Move DebugFS functionality to its own driver; cros_ec_debugfs
- Move SYSFS functionality to its own driver; cros_ec_sysfs
- Add support for input voltage options; tps65218
Fixes:
- Use devm_* managed resources; cros_ec
- Device Tree documentation; stmpe, aspeed-lpc, lochnagar
- Trivial Clean-ups; stmpe
- Rip out broken modular code; aat2870-core, adp5520, as3711,
db8500-prcmu, htc-i2cpld, max8925-core, rc5t583, sta2x11-mfd,
syscon, tps65090, tps65910, tps68470 tps80031, wm831x-spi,
wm831x-i2c, wm831x-core, wm8350-i2c, wm8350-core, wm8400-core
- Kconfig fixups; INTEL_SOC_PMIC
- Improve error path; sm501, sec-core
- Use struct_size() helper; sm501
- Constify; at91-usart
- Use pointers instead of copying data; at91-usart
- Deliver proper return value; cros_ec_dev
- Trivial formatting/whitespace; sec-core"
* tag 'mfd-next-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (53 commits)
mfd: mxs-lradc: Mark expected switch fall-through
mfd: sec-core: Cleanup formatting to a consistent style
mfd: tqmx86: IO controller with I2C, Wachdog and GPIO
mfd: intel-lpss: Move linux/pm.h to the local header
mfd: cros_ec_dev: Return number of bytes read with CROS_EC_DEV_IOCRDMEM
mfd: tps68470: Drop unused MODULE_DEVICE_TABLE
mfd: at91-usart: No need to copy mfd_cell in probe
mfd: at91-usart: Constify at91_usart_spi_subdev and at91_usart_serial_subdev
mfd: lochnagar: Add support for the Cirrus Logic Lochnagar
mfd: lochnagar: Add initial binding documentation
dt-bindings: mfd: aspeed-lpc: Make parameter optional
mfd: sec-core: Return gracefully instead of BUG() if device cannot match
mfd: sm501: Use struct_size() in devm_kzalloc()
mfd: sm501: Fix potential NULL pointer dereference
mfd: Kconfig: Fix I2C_DESIGNWARE_PLATFORM dependencies
mfd: tps65218.c: Add input voltage options
mfd: wm8400-core: Make it explicitly non-modular
mfd: wm8350-core: Drop unused module infrastructure from non-modular code
mfd: wm8350-i2c: Make it explicitly non-modular
mfd: wm831x-core: Drop unused module infrastructure from non-modular code
...
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git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight
Pull backlight fixlet from Lee Jones:
"Allow GPIO call to sleep in pwm_bl driver"
* tag 'backlight-next-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight:
backlight: pwm_bl: Use gpiod_get_value_cansleep() to get initial state
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git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux
Pull RTC updates from Alexandre Belloni:
"There is an unusual amount of new drivers this cycle, and this
explains the number of insertions.
Other than that, the changes are the usual fixes and feature addition.
Subsystem updates:
- new quartz-load-femtofarads DT property for quartz load capacitance
- remove rtc_class_ops.read_callback
New drivers:
- Abracon AB-RTCMC-32.768kHz-EOZ9
- Amlogic Meson RTC
- Cadence RTC IP
- Microcrystal RV3028
- Whwave sd3078
Driver updates:
- cmos: ignore bogus century byte
- ds1307: rework rx8130 support
- isl1208: add isl1209 support, nvmem support
- rs5C372: report invalid time when the oscillator stopped
- rx8581: add rx8571 support"
* tag 'rtc-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (66 commits)
rtc: pic32: convert to SPDX identifier
rtc: pic32: let the core handle range
rtc: pic32: convert to devm_rtc_allocate_device
rtc: update my email address
rtc: rv8803: convert to SPDX identifier
rtc: rv8803: let the core handle range
rtc: tx4939: convert to SPDX identifier
rtc: tx4939: use .set_time
rtc: tx4939: switch to rtc_time64_to_tm/rtc_tm_to_time64
rtc: tx4939: set range
rtc: tx4939: remove useless test
rtc: zynqmp: let the core handle range
rtc: zynqmp: fix possible race condition
rtc: imx-sc: use rtc_time64_to_tm
rtc: rx8581: Add support for Epson rx8571 RTC
dt-bindings: rtc: add rx8571 compatible
rtc: pcf85063: remove dead code
rtc: remove rtc_class_ops.read_callback
rtc: add AB-RTCMC-32.768kHz-EOZ9 RTC support
dt-bindings: rtc: add ABEOZ9
...
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git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal
Pull thermal soc updates from Eduardo Valentin:
"Specifics:
- mediatek thermal now supports MT8183
- broadcom thermal now supports Stingray
- qoirq now supports multiple sensors
- fixes on different drivers: rcar, tsens, tegra
Some new drivers are still pending further review and I chose to leave
them for the next merge window while still sending this material"
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal:
thermal: rcar_gen3_thermal: Register hwmon sysfs interface
thermal/qcom/tsens-common : fix possible object reference leak
thermal: tegra: add get_trend ops
thermal: tegra: fix memory allocation
thermal: tegra: remove unnecessary warnings
thermal: mediatek: add support for MT8183
dt-bindings: thermal: add binding document for mt8183 thermal controller
thermal: mediatek: add flag for bank selection
thermal: mediatek: add thermal controller offset
thermal: mediatek: add calibration item
thermal: mediatek: add common index of vts settings.
thermal: mediatek: fix register index error
thermal: qoriq: add multiple sensors support
thermal: broadcom: Add Stingray thermal driver
dt-bindings: thermal: Add binding document for SR thermal
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git://git.kernel.org/pub/scm/linux/kernel/git/konrad/ibft
Pull ibft updates from Konrad Rzeszutek Wilk:
"Two tiny fixes - a missing break, and upgrading the subsystem to use
modern macros"
* 'stable/for-linus-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/ibft:
iscsi_ibft: use virt_to_phys instead of isa_virt_to_bus
iscsi_ibft: Fix missing break in switch statement
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git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb
Pull swiotlb updates from Konrad Rzeszutek Wilk:
"Expands the SWIOTLB to have debugfs support (along with bug-fixes),
and a tiny fix"
* 'stable/for-linus-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb:
swiotlb: drop pointless static qualifier in swiotlb_create_debugfs()
swiotlb: checking whether swiotlb buffer is full with io_tlb_used
swiotlb: add debugfs to track swiotlb buffer usage
swiotlb: fix comment on swiotlb_bounce()
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c updates from Wolfram Sang:
- the I2C core gained helpers to assist drivers in handling their
suspended state, and drivers were converted to use it
- two new fault-injectors for stress-testing
- bigger refactoring and feature improvements for the ocores,
sh_mobile, and tegra drivers
- platform_data removal for the at24 EEPROM driver
- ... and various improvements and bugfixes all over the subsystem
* 'i2c/for-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (69 commits)
i2c: Allow recovery of the initial IRQ by an I2C client device.
i2c: ocores: turn incomplete kdoc into a comment
i2c: designware: Do not allow i2c_dw_xfer() calls while suspended
i2c: tegra: Only display error messages if DMA setup fails
i2c: gpio: fault-injector: add 'inject_panic' injector
i2c: gpio: fault-injector: add 'lose_arbitration' injector
i2c: tegra: remove multi-master support
i2c: tegra: remove master fifo support on tegra186
i2c: tegra: change phrasing, "fallbacking" to "falling back"
i2c: expand minor range when registering chrdev region
i2c: aspeed: Add multi-master use case support
i2c: core-smbus: don't trace smbus_reply data on errors
i2c: ocores: Add support for bus clock via platform data
i2c: ocores: Add support for IO mapper registers.
i2c: ocores: checkpatch fixes
i2c: ocores: add SPDX tag
i2c: ocores: add polling interface
i2c: ocores: do not handle IRQ if IF is not set
i2c: ocores: stop transfer on timeout
i2c: tegra: add i2c interface timing support
...
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git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply
Pull power supply and reset updates from Sebastian Reichel:
"Nothing too fancy in the power-supply subsystem this time. There are
less patches than usual, since I did not have enough time to review
them in time. The good news is, that all patches have been in
linux-next for more than two weeks and there are no complicated
cross-subsystem patchsets this time!
Summary:
- at91-reset: add sam9x60 support
- sc27xx: improve capacity logic
- goldfish_battery: enhance driver by adding many new properties
- isp1704: drop platform data and migrate to gpiod
- misc small fixes and improvements"
* tag 'for-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (25 commits)
power: reset: at91-reset: add support for sam9x60 SoC
dt-bindings: arm: atmel: add new sam9x60 reset controller binding
dt-bindings: arm: atmel: add missing samx7 to reset controller
max17042_battery: fix potential use-after-free on device remove
power: supply: core: Add a field to support battery max voltage
dt-bindings: power: supply: Add voltage-max-design-microvolt property
bq27x00: use cached flags
power: supply: ds2782: fix possible use-after-free on remove
power: supply: bq25890: show max charge current/voltage as configured
power: supply: sc27xx: Fix capacity saving function
power: supply: sc27xx: Fix the incorrect formula when converting capacity to coulomb counter
power: supply: sc27xx: Add one property to read charge voltage
dt-bindings: power: sc27xx: Add one IIO channel to read charge voltage
drivers: power: supply: goldfish_battery: Add support for reading more properties
power: supply: charger-manager: Fix trivial language typos
cpcap-charger: generate events for userspace
power: supply: remove some duplicated includes
power: twl4030: fix a missing check of return value
drivers: power: supply: goldfish_battery: Use tabs for alignment
drivers: power: supply: goldfish_battery: Fix alignment
...
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git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-hsi
Pull HIS update from Sebastian Reichel:
"Replace DEFINE_SIMPLE_ATTRIBUTE with DEFINE_DEBUGFS_ATTRIBUTE"
* tag 'hsi-for-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-hsi:
HSI: omap_ssi_port: fix debugfs_simple_attr.cocci warnings
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Pull IPMI updates from Corey Minyard:
"A couple of bug fixes and a bunch of code cleanup:
- Fix a use after free error in a certain error situation.
- Fix some flag handling issues in the SSIF (I2C) IPMI driver.
- A bunch of cleanups, spacing issues, converting pr_xxx to dev_xxx,
use standard UUID handling, and some other minor stuff.
- The IPMI code was creating a platform device if none was supplied.
Instead of doing that, have every source that creates an IPMI
device supply a device struct. This fixes several issues,including
a crash in one situation, and cleans things up a bit"
* tag 'for-linus-5.1' of git://github.com/cminyard/linux-ipmi:
ipmi_si: Potential array underflow in hotmod_handler()
ipmi_si: Remove hacks for adding a dummy platform devices
ipmi_si: Consolidate scanning the platform bus
ipmi_si: Remove hotmod devices on removal and exit
ipmi_si: Remove hardcode IPMI devices by scanning the platform bus
ipmi_si: Switch hotmod to use a platform device
ipmi: Consolidate the adding of platform devices
ipmi_si: Rename addr_type to addr_space to match what it does
ipmi_si: Convert some types into unsigned
ipmi_si: Fix crash when using hard-coded device
ipmi: Use dedicated API for copying a UUID
ipmi: Use defined constant for UUID representation
ipmi:ssif: Change some pr_xxx to dev_xxx calls
ipmi: kcs_bmc: handle devm_kasprintf() failure case
ipmi: Fix return value when a message is truncated
ipmi: clean an indentation issue, remove extraneous space
ipmi: Make the smi watcher be disabled immediately when not needed
ipmi: Fix how the lower layers are told to watch for messages
ipmi: Fix SSIF flag requests
ipmi_si: fix use-after-free of resource->name
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull RAS updates from Borislav Petkov:
"This time around we have in store:
- Disable MC4_MISC thresholding banks on all AMD family 0x15 models
(Shirish S)
- AMD MCE error descriptions update and error decode improvements
(Yazen Ghannam)
- The usual smaller conversions and fixes"
* 'ras-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mce: Improve error message when kernel cannot recover, p2
EDAC/mce_amd: Decode MCA_STATUS in bit definition order
EDAC/mce_amd: Decode MCA_STATUS[Scrub] bit
EDAC, mce_amd: Print ExtErrorCode and description on a single line
EDAC, mce_amd: Match error descriptions to latest documentation
x86/MCE/AMD, EDAC/mce_amd: Add new error descriptions for some SMCA bank types
x86/MCE/AMD, EDAC/mce_amd: Add new McaTypes for CS, PSP, and SMU units
x86/MCE/AMD, EDAC/mce_amd: Add new MP5, NBIO, and PCIE SMCA bank types
RAS: Add a MAINTAINERS entry
RAS: Use consistent types for UUIDs
x86/MCE/AMD: Carve out the MC4_MISC thresholding quirk
x86/MCE/AMD: Turn off MC4_MISC thresholding on all family 0x15 models
x86/MCE: Switch to use the new generic UUID API
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Pull EDAC updates from Borislav Petkov:
- A new EDAC AST 2500 SoC driver (Stefan M Schaeckeler)
- New i10nm EDAC driver for Intel 10nm CPUs (Qiuxu Zhuo and Tony Luck)
- Altera SDRAM functionality carveout for separate enablement of RAS
and SDRAM capabilities on some Altera chips. (Thor Thayer)
- The usual round of cleanups and fixes
And last but not least: recruit James Morse as a reviewer for the ARM
side.
* tag 'edac_for_5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
EDAC/altera: Add separate SDRAM EDAC config
EDAC, altera: Add missing of_node_put()
EDAC, skx_common: Add code to recognise new compound error code
EDAC, i10nm: Fix randconfig builds
EDAC, i10nm: Add a driver for Intel 10nm server processors
EDAC, skx_edac: Delete duplicated code
EDAC, skx_common: Separate common code out from skx_edac
EDAC: Do not check return value of debugfs_create() functions
EDAC: Add James Morse as a reviewer
dt-bindings, EDAC: Add Aspeed AST2500
EDAC, aspeed: Add an Aspeed AST2500 EDAC driver
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git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
Pull HID updates from Jiri Kosina:
- support for Pro Pen slim, from Jason Gerecke
- power management improvements to Intel-ISH driver, from Song Hongyan
- UCLogic driver revamp in order to be able to support wider range of
Huion tablets, from Nikolai Kondrashov
- Asus Transbook support, from NOGUCHI Hiroshi
- other assorted small bugfixes / cleanups and device ID additions
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid: (46 commits)
HID: Remove Waltop tablets from hid_have_special_driver
HID: Remove KYE tablets from hid_have_special_driver
HID: Remove hid-uclogic entries from hid_have_special_driver
HID: uclogic: Do not initialize non-USB devices
HID: uclogic: Add support for Ugee G5
HID: uclogic: Support Gray-coded rotary encoders
HID: uclogic: Support faking Wacom pad device ID
HID: uclogic: Add support for XP-Pen Deco 01
HID: uclogic: Add support for XP-Pen Star G640
HID: uclogic: Add support for XP-Pen Star G540
HID: uclogic: Add support for Ugee EX07S frame controls
HID: uclogic: Add support for Ugee M540
HID: uclogic: Add support for Ugee 2150
HID: uclogic: Support v2 protocol
HID: uclogic: Support fragmented high-res reports
HID: uclogic: Support in-range reporting emulation
HID: uclogic: Designate current protocol v1
HID: uclogic: Re-initialize tablets on resume
HID: uclogic: Extract tablet parameter discovery into a module
HID: uclogic: Extract report descriptors to a module
...
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git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching
Pull livepatching updates from Jiri Kosina:
- support for something we call 'atomic replace', and allows for much
better handling of cumulative patches (which is something very useful
for distros), from Jason Baron with help of Petr Mladek and Joe
Lawrence
- improvement of handling of tasks blocking finalization, from Miroslav
Benes
- update of MAINTAINERS file to reflect move towards group
maintainership
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching: (22 commits)
livepatch/selftests: use "$@" to preserve argument list
livepatch: Module coming and going callbacks can proceed with all listed patches
livepatch: Proper error handling in the shadow variables selftest
livepatch: return -ENOMEM on ptr_id() allocation failure
livepatch: Introduce klp_for_each_patch macro
livepatch: core: Return EOPNOTSUPP instead of ENOSYS
selftests/livepatch: add DYNAMIC_DEBUG config dependency
livepatch: samples: non static warnings fix
livepatch: update MAINTAINERS
livepatch: Remove signal sysfs attribute
livepatch: Send a fake signal periodically
selftests/livepatch: introduce tests
livepatch: Remove ordering (stacking) of the livepatches
livepatch: Atomic replace and cumulative patches documentation
livepatch: Remove Nop structures when unused
livepatch: Add atomic replace
livepatch: Use lists to manage patches, objects and functions
livepatch: Simplify API by removing registration step
livepatch: Don't block the removal of patches loaded after a forced transition
livepatch: Consolidate klp_free functions
...
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Pull drm updates from Dave Airlie:
"This is the main drm pull request for the 5.1 merge window.
The big changes I'd highlight are:
- nouveau has HMM support now, there is finally an in-tree user so we
can quieten down the rip it out people.
- i915 now enables fastboot by default on Skylake+
- Displayport Multistream support has been refactored and should
hopefully be more reliable.
Core:
- header cleanups aiming towards removing drmP.h
- dma-buf fence seqnos to 64-bits
- common helper for DP mst hotplug for radeon,i915,amdgpu + new
refcounting scheme
- MST i2c improvements
- drm_syncobj_cb removal
- ARM FB compression fourcc
- P010 + P016 fourcc
- allwinner tiled format modifier
- i2c over aux I2C_M_STOP support
- DRM_AUTH handling fixes
TTM:
- ref/unref renaming
New driver:
- ARM komeda display driver
scheduler:
- refactor mirror list handling
- rework hw fence processing
- 0 run queue entity fix
bridge:
- TI DS90C185 LVDS bridge
- thc631lvdm83d bridge improvements
- cadence + allwinner DSI ported to generic phy
panels:
- Sitronix ST7701 panel
- Kingdisplay KD097D04
- LeMaker BL035-RGB-002
- PDA 91-00156-A0
- Innolux EE101IA-01D
i915:
- Enable fastboot by default on SKL+/VLV/CHV
- Export RPCS configuration for ICL media driver
- Coffelake PCI ID
- CNL clocks setup fixes
- ACPI/PMIC support for MIPI/DSI
- Per-engine WA init for all engines
- Shrinker locking fixes
- Kerneldoc updates
- Lots of ring improvements and reset fixes
- Coffeelake GVT Support
- VFIO GVT EDID Region support
- runtime PM wakeref tracking
- ILK->IVB primary plane enable delays
- userptr mutex locking fixes
- DSI fixes
- LVDS/TV cleanups
- HW readout fixes
- LUT robustness fixes
- ICL display and watermark fixes
- gem mmap race fix
amdgpu:
- add scheduled dependencies interface
- DCC on scanout surfaces
- vega10/20 BACO support
- Multiple IH rings on soc15
- XGMI locking fixes
- DC i2c/aux cleanups
- runtime SMU debug interface
- Kexec improvmeents
- SR-IOV fixes
- DC freesync + ABM fixes
- GDS fixes
- GPUVM fixes
- vega20 PCIE DPM switching fixes
- Context priority handling fixes
radeon:
- fix missing break in evergreen parser
nouveau:
- SVM support via HMM
msm:
- QCOM Compressed modifier support
exynos:
- s5pv210 rotator support
imx:
- zpos property support
- pending update fixes
v3d:
- cache flush improvments
vc4:
- reflection support
- HDMI overscan support
tegra:
- CEC refactoring
- HDMI audio fixes
- Tegra186 prep work
- SOR crossbar device tree fixes
sun4i:
- implicit fencing support
- YUV and scalar support improvements
- A23 support
- tiling fixes
atmel-hlcdc:
- clipping and rotation property fixes
qxl:
- BO and PRIME improvements
- generic fbdev emulation
dw-hdmi:
- HDMI 2.0 2160p
- YUV420 ouput
rockchip:
- implicit fencing support
- reflection proerties
virtio-gpu:
- use generic fbdev emulation
tilcdc:
- cpufreq vs crtc init fix
rcar-du:
- R8A774C0 support
- D3/E3 RGB output routing fixes and DPAD0 support
- RA87744 LVDS support
bochs:
- atomic and generic fbdev emulation
- ID mismatch error on bochs load
meson:
- remove firmware fbs"
* tag 'drm-next-2019-03-06' of git://anongit.freedesktop.org/drm/drm: (1130 commits)
drm/amd/display: Use vrr friendly pageflip throttling in DC.
drm/imx: only send commit done event when all state has been applied
drm/imx: allow building under COMPILE_TEST
drm/imx: imx-tve: depend on COMMON_CLK
drm/imx: ipuv3-plane: add zpos property
drm/imx: ipuv3-plane: add function to query atomic update status
gpu: ipu-v3: prg: add function to get channel configure status
gpu: ipu-v3: pre: add double buffer status readback
drm/amdgpu: Bump amdgpu version for context priority override.
drm/amdgpu/powerplay: fix typo in BACO header guards
drm/amdgpu/powerplay: fix return codes in BACO code
drm/amdgpu: add missing license on baco files
drm/bochs: Fix the ID mismatch error
drm/nouveau/dmem: use dma addresses during migration copies
drm/nouveau/dmem: use physical vram addresses during migration copies
drm/nouveau/dmem: extend copy function to allow direct use of physical addresses
drm/nouveau/svm: new ioctl to migrate process memory to GPU memory
drm/nouveau/dmem: device memory helpers for SVM
drm/nouveau/svm: initial support for shared virtual memory
drm/nouveau: prepare for enabling svm with existing userspace interfaces
...
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Tony notes that the GPIO module does not idle when level interrupts are
in use, as the wakeup appears to get stuck.
After extensive investigation, it appears that the wakeup will only be
cleared if the interrupt status register is cleared while the interrupt
is enabled. However, we are currently clearing it with the interrupt
disabled for level-based interrupts.
It is acknowledged that this observed behaviour conflicts with a
statement in the TRM:
CAUTION
After servicing the interrupt, the status bit in the interrupt status
register (GPIOi.GPIO_IRQSTATUS_0 or GPIOi.GPIO_IRQSTATUS_1) must be
reset and the interrupt line released (by setting the corresponding
bit of the interrupt status register to 1) before enabling an
interrupt for the GPIO channel in the interrupt-enable register
(GPIOi.GPIO_IRQSTATUS_SET_0 or GPIOi.GPIO_IRQSTATUS_SET_1) to prevent
the occurrence of unexpected interrupts when enabling an interrupt
for the GPIO channel.
However, this does not appear to be a practical problem.
Further, as reported by Grygorii Strashko <grygorii.strashko@ti.com>,
the TI Android kernel tree has an earlier similar patch as "GPIO: OMAP:
Fix the sequence to clear the IRQ status" saying:
if the status is cleared after disabling the IRQ then sWAKEUP will not
be cleared and gates the module transition
When we unmask the level interrupt after the interrupt has been handled,
enable the interrupt and only then clear the interrupt. If the interrupt
is still pending, the hardware will re-assert the interrupt status.
Should the caution note in the TRM prove to be a problem, we could
use a clear-enable-clear sequence instead.
Cc: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: Keerthy <j-keerthy@ti.com>
Cc: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
[tony@atomide.com: updated comments based on an earlier TI patch]
Signed-off-by: Tony Lindgren <tony@atomide.com>
Acked-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Current amd_fch_gpio_direction_output implementation ignores the value
argument, fix it so direction_output will set proper output level.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Enrico Weigelt <info@metux.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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The driver was newly introduced but the version that got merged
produces a harmless compiler warning:
drivers/platform/x86/pcengines-apuv2.c: In function 'apu_board_init':
drivers/platform/x86/pcengines-apuv2.c:211:6: error: unused variable 'rc' [-Werror=unused-variable]
Remove the evidently useless variable.
Fixes: f8eb0235f659 ("x86: pcengines apuv2 gpio/leds/keys platform driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-By: Enrico Weigelt, metux IT consult <info@metux.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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The commit 0cdf21b34e30
("gpio: pca953x: set the PCA_PCAL flag also when matching by DT")
introduces a helper macro which tells that chip supports latched interrupts,
but the macro was never used for ACPI or legacy enumeration.
So, make use of it for legacy and ACPI enumeration.
Cc: H. Nikolaus Schaller <hns@goldelico.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Fix Kconfig warning for PCENGINES_APU2 symbol:
WARNING: unmet direct dependencies detected for KEYBOARD_GPIO_POLLED
Depends on [n]: !UML && INPUT [=y] && INPUT_KEYBOARD [=n] && GPIOLIB [=y]
Selected by [y]:
- PCENGINES_APU2 [=y] && X86 [=y] && X86_PLATFORM_DEVICES [=y]
Add INPUT_KEYBOARD dependency for KEYBOARD_GPIO_POLLED.
Add LEDS_CLASS dependency for LEDS_GPIO.
Fixes: f8eb0235f659 ("x86: pcengines apuv2 gpio/leds/keys platform driver")
Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Enrico Weigelt, metux IT consult <info@metux.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Merge more updates from Andrew Morton:
- some of the rest of MM
- various misc things
- dynamic-debug updates
- checkpatch
- some epoll speedups
- autofs
- rapidio
- lib/, lib/lzo/ updates
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (83 commits)
samples/mic/mpssd/mpssd.h: remove duplicate header
kernel/fork.c: remove duplicated include
include/linux/relay.h: fix percpu annotation in struct rchan
arch/nios2/mm/fault.c: remove duplicate include
unicore32: stop printing the virtual memory layout
MAINTAINERS: fix GTA02 entry and mark as orphan
mm: create the new vm_fault_t type
arm, s390, unicore32: remove oneliner wrappers for memblock_alloc()
arch: simplify several early memory allocations
openrisc: simplify pte_alloc_one_kernel()
sh: prefer memblock APIs returning virtual address
microblaze: prefer memblock API returning virtual address
powerpc: prefer memblock APIs returning virtual address
lib/lzo: separate lzo-rle from lzo
lib/lzo: implement run-length encoding
lib/lzo: fast 8-byte copy on arm64
lib/lzo: 64-bit CTZ on arm64
lib/lzo: tidy-up ifdefs
ipc/sem.c: replace kvmalloc/memset with kvzalloc and use struct_size
ipc: annotate implicit fall through
...
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Remove duplicate headers which are included more than once
Link: http://lkml.kernel.org/r/20190114170033.GA3674@hp-pavilion-15-notebook-pc-brajeswar
Signed-off-by: Brajeswar Ghosh <brajeswar.linux@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Remove duplicated include.
Link: http://lkml.kernel.org/r/20181209062952.17736-1-yuehaibing@huawei.com
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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The percpu member of this structure is declared as:
struct ... ** __percpu member;
So its type is:
__percpu pointer to pointer to struct ...
But looking at how it's used, its type should be:
pointer to __percpu pointer to struct ...
and it should thus be declared as:
struct ... * __percpu *member;
So fix the placement of '__percpu' in the definition of this
structures.
This silents a few Sparse's warnings like:
warning: incorrect type in initializer (different address spaces)
expected void const [noderef] <asn:3> *__vpp_verify
got struct sched_domain **
Link: http://lkml.kernel.org/r/20190118144902.79065-1-luc.vanoostenryck@gmail.com
Fixes: 017c59c042d01 ("relay: Use per CPU constructs for the relay channel buffer pointers")
Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Cc: Jens Axboe <axboe@suse.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Remove linux/ptrace.h which is included more than once
Link: http://lkml.kernel.org/r/5c45d345.1c69fb81.d90ed.8e05@mx.google.com
Signed-off-by: Sabyasachi Gupta <sabyasachi.linux@gmail.com>
Cc: Ley Foon Tan <lftan@altera.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Since commit ad67b74d2469 ("printk: hash addresses printed with %p"),
the virtual memory layout printed during boot up contains "ptrval"
instead of actual addresses.
Instead of changing the printing to "%px", and leaking virtual memory
layout information again, just remove the printing completely, cfr.
e.g. commits 071929dbdd86 ("arm64: Stop printing the virtual memory
layout") and 31833332f798 ("m68k/mm: Stop printing the virtual memory
layout").
All interesting information (actual section sizes) is already printed by
mem_init_print_info() just above anyway.
Link: http://lkml.kernel.org/r/20190121152254.29079-1-geert+renesas@glider.be
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Kees Cook <keescook@chromium.org>
Cc: Guan Xuetao <gxt@pku.edu.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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The entry for GTA02 never had paths listed; fix that. commit 9d76295ac608
("[ARM] GTA02/FreeRunner: Add machine definition"), which added the entry
for GTA02, created two new files named
arch/arm/mach-s3c2442/{include/mach/gta02.h,mach-gta02.c}, which were then
renamed in commit dd6f01b5ccba ("ARM: S3C2440: move mach-s3c2440/* into
mach-s3c24xx/") to
arch/arm/mach-s3c24xx/{include/mach/gta02.h,mach-gta02.c}.
Also, the GTA02 maintainer's email address is from a domain that doesn't
have an MX record anymore and appears to have expired. Remove the
maintainer and mark the subsystem as orphan.
Link: http://lkml.kernel.org/r/20190215140444.37060-1-jannh@google.com
Signed-off-by: Jann Horn <jannh@google.com>
Cc: Nelson Castillo <arhuaco@freaks-unidos.net>
Cc: Nelson Castillo <nelsoneci@gmail.com>
Cc: Andy Green <andy@warmcat.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Page fault handlers are supposed to return VM_FAULT codes, but some
drivers/file systems mistakenly return error numbers. Now that all
drivers/file systems have been converted to use the vm_fault_t return
type, change the type definition to no longer be compatible with 'int'.
By making it an unsigned int, the function prototype becomes
incompatible with a function which returns int. Sparse will detect any
attempts to return a value which is not a VM_FAULT code.
VM_FAULT_SET_HINDEX and VM_FAULT_GET_HINDEX values are changed to avoid
conflict with other VM_FAULT codes.
[jrdr.linux@gmail.com: fix warnings]
Link: http://lkml.kernel.org/r/20190109183742.GA24326@jordon-HP-15-Notebook-PC
Link: http://lkml.kernel.org/r/20190108183041.GA12137@jordon-HP-15-Notebook-PC
Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
Reviewed-by: William Kucharski <william.kucharski@oracle.com>
Reviewed-by: Mike Rapoport <rppt@linux.ibm.com>
Reviewed-by: Matthew Wilcox <willy@infradead.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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arm, s390 and unicore32 use oneliner wrappers for memblock_alloc().
Replace their usage with direct call to memblock_alloc().
Link: http://lkml.kernel.org/r/1546248566-14910-7-git-send-email-rppt@linux.ibm.com
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Suggested-by: Christoph Hellwig <hch@infradead.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Greentime Hu <green.hu@gmail.com>
Cc: Guan Xuetao <gxt@pku.edu.cn>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Mark Salter <msalter@redhat.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Michal Simek <michal.simek@xilinx.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Rich Felker <dalias@libc.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Stafford Horne <shorne@gmail.com>
Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Cc: Vincent Chen <deanbo422@gmail.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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There are several early memory allocations in arch/ code that use
memblock_phys_alloc() to allocate memory, convert the returned physical
address to the virtual address and then set the allocated memory to
zero.
Exactly the same behaviour can be achieved simply by calling
memblock_alloc(): it allocates the memory in the same way as
memblock_phys_alloc(), then it performs the phys_to_virt() conversion
and clears the allocated memory.
Replace the longer sequence with a simpler call to memblock_alloc().
Link: http://lkml.kernel.org/r/1546248566-14910-6-git-send-email-rppt@linux.ibm.com
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Greentime Hu <green.hu@gmail.com>
Cc: Guan Xuetao <gxt@pku.edu.cn>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Mark Salter <msalter@redhat.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Michal Simek <michal.simek@xilinx.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Rich Felker <dalias@libc.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Stafford Horne <shorne@gmail.com>
Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Cc: Vincent Chen <deanbo422@gmail.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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The pte_alloc_one_kernel() function allocates a page using
__get_free_page(GFP_KERNEL) when mm initialization is complete and
memblock_phys_alloc() on the earlier stages. The physical address of
the page allocated with memblock_phys_alloc() is converted to the
virtual address and in the both cases the allocated page is cleared
using clear_page().
The code is simplified by replacing __get_free_page() with
get_zeroed_page() and by replacing memblock_phys_alloc() with
memblock_alloc().
Link: http://lkml.kernel.org/r/1546248566-14910-5-git-send-email-rppt@linux.ibm.com
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Acked-by: Stafford Horne <shorne@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Greentime Hu <green.hu@gmail.com>
Cc: Guan Xuetao <gxt@pku.edu.cn>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Mark Salter <msalter@redhat.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Michal Simek <michal.simek@xilinx.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Rich Felker <dalias@libc.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Cc: Vincent Chen <deanbo422@gmail.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Rather than use the memblock_alloc_base that returns a physical address
and then convert this address to the virtual one, use appropriate
memblock function that returns a virtual address.
There is a small functional change in the allocation of then
NODE_DATA(). Instead of panicing if the local allocation failed, the
non-local allocation attempt will be made.
Link: http://lkml.kernel.org/r/1546248566-14910-4-git-send-email-rppt@linux.ibm.com
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Greentime Hu <green.hu@gmail.com>
Cc: Guan Xuetao <gxt@pku.edu.cn>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Mark Salter <msalter@redhat.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Michal Simek <michal.simek@xilinx.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Rich Felker <dalias@libc.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Stafford Horne <shorne@gmail.com>
Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Cc: Vincent Chen <deanbo422@gmail.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Rather than use the memblock_alloc_base that returns a physical address
and then convert this address to the virtual one, use appropriate
memblock function that returns a virtual address.
Link: http://lkml.kernel.org/r/1546248566-14910-3-git-send-email-rppt@linux.ibm.com
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Tested-by: Michal Simek <michal.simek@xilinx.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Greentime Hu <green.hu@gmail.com>
Cc: Guan Xuetao <gxt@pku.edu.cn>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Mark Salter <msalter@redhat.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Rich Felker <dalias@libc.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Stafford Horne <shorne@gmail.com>
Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Cc: Vincent Chen <deanbo422@gmail.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Patch series "memblock: simplify several early memory allocation", v4.
These patches simplify some of the early memory allocations by replacing
usage of older memblock APIs with newer and shinier ones.
Quite a few places in the arch/ code allocated memory using a memblock
API that returns a physical address of the allocated area, then
converted this physical address to a virtual one and then used memset(0)
to clear the allocated range.
More recent memblock APIs do all the three steps in one call and their
usage simplifies the code.
It's important to note that regardless of API used, the core allocation
is nearly identical for any set of memblock allocators: first it tries
to find a free memory with all the constraints specified by the caller
and then falls back to the allocation with some or all constraints
disabled.
The first three patches perform the conversion of call sites that have
exact requirements for the node and the possible memory range.
The fourth patch is a bit one-off as it simplifies openrisc's
implementation of pte_alloc_one_kernel(), and not only the memblock
usage.
The fifth patch takes care of simpler cases when the allocation can be
satisfied with a simple call to memblock_alloc().
The sixth patch removes one-liner wrappers for memblock_alloc on arm and
unicore32, as suggested by Christoph.
This patch (of 6):
There are a several places that allocate memory using memblock APIs that
return a physical address, convert the returned address to the virtual
address and frequently also memset(0) the allocated range.
Update these places to use memblock allocators already returning a
virtual address. Use memblock functions that clear the allocated memory
instead of calling memset(0) where appropriate.
The calls to memblock_alloc_base() that were not followed by memset(0)
are replaced with memblock_alloc_try_nid_raw(). Since the latter does
not panic() when the allocation fails, the appropriate panic() calls are
added to the call sites.
Link: http://lkml.kernel.org/r/1546248566-14910-2-git-send-email-rppt@linux.ibm.com
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Guan Xuetao <gxt@pku.edu.cn>
Cc: Greentime Hu <green.hu@gmail.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Mark Salter <msalter@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Rich Felker <dalias@libc.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Cc: Stafford Horne <shorne@gmail.com>
Cc: Vincent Chen <deanbo422@gmail.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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To prevent any issues with persistent data, separate lzo-rle from lzo so
that it is treated as a separate algorithm, and lzo is still available.
Link: http://lkml.kernel.org/r/20190205155944.16007-3-dave.rodgman@arm.com
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Markus F.X.J. Oberhumer <markus@oberhumer.com>
Cc: Matt Sealey <matt.sealey@arm.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Nitin Gupta <nitingupta910@gmail.com>
Cc: Richard Purdie <rpurdie@openedhand.com>
Cc: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Cc: Sonny Rao <sonnyrao@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Patch series "lib/lzo: run-length encoding support", v5.
Following on from the previous lzo-rle patchset:
https://lkml.org/lkml/2018/11/30/972
This patchset contains only the RLE patches, and should be applied on
top of the non-RLE patches ( https://lkml.org/lkml/2019/2/5/366 ).
Previously, some questions were raised around the RLE patches. I've
done some additional benchmarking to answer these questions. In short:
- RLE offers significant additional performance (data-dependent)
- I didn't measure any regressions that were clearly outside the noise
One concern with this patchset was around performance - specifically,
measuring RLE impact separately from Matt Sealey's patches (CTZ & fast
copy). I have done some additional benchmarking which I hope clarifies
the benefits of each part of the patchset.
Firstly, I've captured some memory via /dev/fmem from a Chromebook with
many tabs open which is starting to swap, and then split this into 4178
4k pages. I've excluded the all-zero pages (as zram does), and also the
no-zero pages (which won't tell us anything about RLE performance).
This should give a realistic test dataset for zram. What I found was
that the data is VERY bimodal: 44% of pages in this dataset contain 5%
or fewer zeros, and 44% contain over 90% zeros (30% if you include the
no-zero pages). This supports the idea of special-casing zeros in zram.
Next, I've benchmarked four variants of lzo on these pages (on 64-bit
Arm at max frequency): baseline LZO; baseline + Matt Sealey's patches
(aka MS); baseline + RLE only; baseline + MS + RLE. Numbers are for
weighted roundtrip throughput (the weighting reflects that zram does
more compression than decompression).
https://drive.google.com/file/d/1VLtLjRVxgUNuWFOxaGPwJYhl_hMQXpHe/view?usp=sharing
Matt's patches help in all cases for Arm (and no effect on Intel), as
expected.
RLE also behaves as expected: with few zeros present, it makes no
difference; above ~75%, it gives a good improvement (50 - 300 MB/s on
top of the benefit from Matt's patches).
Best performance is seen with both MS and RLE patches.
Finally, I have benchmarked the same dataset on an x86-64 device. Here,
the MS patches make no difference (as expected); RLE helps, similarly as
on Arm. There were no definite regressions; allowing for observational
error, 0.1% (3/4178) of cases had a regression > 1 standard deviation,
of which the largest was 4.6% (1.2 standard deviations). I think this
is probably within the noise.
https://drive.google.com/file/d/1xCUVwmiGD0heEMx5gcVEmLBI4eLaageV/view?usp=sharing
One point to note is that the graphs show RLE appears to help very
slightly with no zeros present! This is because the extra code causes
the clang optimiser to change code layout in a way that happens to have
a significant benefit. Taking baseline LZO and adding a do-nothing line
like "__builtin_prefetch(out_len);" immediately before the "goto next"
has the same effect. So this is a real, but basically spurious effect -
it's small enough not to upset the overall findings.
This patch (of 3):
When using zram, we frequently encounter long runs of zero bytes. This
adds a special case which identifies runs of zeros and encodes them
using run-length encoding.
This is faster for both compression and decompresion. For high-entropy
data which doesn't hit this case, impact is minimal.
Compression ratio is within a few percent in all cases.
This modifies the bitstream in a way which is backwards compatible
(i.e., we can decompress old bitstreams, but old versions of lzo cannot
decompress new bitstreams).
Link: http://lkml.kernel.org/r/20190205155944.16007-2-dave.rodgman@arm.com
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Markus F.X.J. Oberhumer <markus@oberhumer.com>
Cc: Matt Sealey <matt.sealey@arm.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Nitin Gupta <nitingupta910@gmail.com>
Cc: Richard Purdie <rpurdie@openedhand.com>
Cc: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Cc: Sonny Rao <sonnyrao@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Enable faster 8-byte copies on arm64.
Link: http://lkml.kernel.org/r/20181127161913.23863-6-dave.rodgman@arm.com
Link: http://lkml.kernel.org/r/20190205141950.9058-4-dave.rodgman@arm.com
Signed-off-by: Matt Sealey <matt.sealey@arm.com>
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Markus F.X.J. Oberhumer <markus@oberhumer.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Nitin Gupta <nitingupta910@gmail.com>
Cc: Richard Purdie <rpurdie@openedhand.com>
Cc: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Cc: Sonny Rao <sonnyrao@google.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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LZO leaves some performance on the table by not realising that arm64 can
optimize count-trailing-zeros bit operations.
Add CONFIG_ARM64 to the checked definitions alongside CONFIG_X86_64 to
enable the use of rbit/clz instructions on full 64-bit quantities.
Link: http://lkml.kernel.org/r/20181127161913.23863-5-dave.rodgman@arm.com
Link: http://lkml.kernel.org/r/20190205141950.9058-3-dave.rodgman@arm.com
Signed-off-by: Matt Sealey <matt.sealey@arm.com>
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Markus F.X.J. Oberhumer <markus@oberhumer.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Nitin Gupta <nitingupta910@gmail.com>
Cc: Richard Purdie <rpurdie@openedhand.com>
Cc: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Cc: Sonny Rao <sonnyrao@google.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Patch series "lib/lzo: performance improvements", v5.
This patch (of 3):
Modify the ifdefs in lzodefs.h to be more consistent with normal kernel
macros (e.g., change __aarch64__ to CONFIG_ARM64).
Link: http://lkml.kernel.org/r/20190205141950.9058-2-dave.rodgman@arm.com
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: David S. Miller <davem@davemloft.net>
Cc: Nitin Gupta <nitingupta910@gmail.com>
Cc: Richard Purdie <rpurdie@openedhand.com>
Cc: Markus F.X.J. Oberhumer <markus@oberhumer.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Cc: Sonny Rao <sonnyrao@google.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Matt Sealey <matt.sealey@arm.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Use kvzalloc() instead of kvmalloc() and memset().
Also, make use of the struct_size() helper instead of the open-coded
version in order to avoid any potential type mistakes.
This code was detected with the help of Coccinelle.
Link: http://lkml.kernel.org/r/20190131214221.GA28930@embeddedor
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Manfred Spraul <manfred@colorfullife.com>
Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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