bvec_iter_advance() is quite popular, but compilers fail to do proper
alias analysis and optimise it good enough. The assembly is checked
for gcc 9.2, x86-64.
- remove @iter->bi_size from min(...), as it's always less than @bytes.
Modify at the beginning and forget about it.
- the compiler isn't able to collapse memory dependencies and remove
writes in the loop. Help it by explicitely using local vars.
Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Since commit b18fdf71e0 ("io_uring: simplify io_req_link_next()"),
the io_wq_current_is_worker function is no longer needed, clean it
up.
Signed-off-by: Jackie Liu <liuyun01@kylinos.cn>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
If this flag is set, applications can be certain that any data for
async offload has been consumed when the kernel has consumed the
SQE.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Just like commit f67676d160 for read/write requests, this one ensures
that the sockaddr data has been copied for IORING_OP_CONNECT if we need
to punt the request to async context.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Just like commit f67676d160 for read/write requests, this one ensures
that the msghdr data is fully copied if we need to punt a recvmsg or
sendmsg system call to async context.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Currently we don't copy the iovecs when we punt to async context. This
can be problematic for applications that store the iovec on the stack,
as they often assume that it's safe to let the iovec go out of scope
as soon as IO submission has been called. This isn't always safe, as we
will re-copy the iovec once we're in async context.
Make this 100% safe by copying the iovec just once. With this change,
applications may safely store the iovec on the stack for all cases.
Reported-by: 李通洲 <carter.li@eoitek.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Right now we just copy the sqe for async offload, but we want to store
more context across an async punt. In preparation for doing so, put the
sqe copy inside a structure that we can expand. With this pointer added,
we can get rid of REQ_F_FREE_SQE, as that is now indicated by whether
req->io is NULL or not.
No functional changes in this patch.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Commit 6917d06899 ("block: merge invalidate_partitions into
rescan_partitions") caused a regression where systemd-udevd spins
forever using max CPU starting at boot time.
It's caused by a behavior change where a KOBJ_CHANGE uevent is now sent
in a case where previously it wasn't.
Restore the old behavior.
Fixes: 6917d06899 ("block: merge invalidate_partitions into rescan_partitions")
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
We should never return -ERESTARTSYS to userspace, transform it into
-EINTR.
Cc: stable@vger.kernel.org # v5.3+
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Pull input updates from Dmitry Torokhov:
- updates to Ilitech driver to support ILI2117
- face lift of st1232 driver to support MT-B protocol
- a new driver for i.MX system controller keys
- mpr121 driver now supports polling mode
- various input drivers have been switched away from input_polled_dev
to use polled mode of regular input devices
- other assorted cleanups and fixes
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (70 commits)
Input: synaptics-rmi4 - fix various V4L2 compliance problems in F54
Input: synaptics - switch another X1 Carbon 6 to RMI/SMbus
Input: fix Kconfig indentation
Input: imx_sc_key - correct SCU message structure to avoid stack corruption
Input: ili210x - optionally show calibrate sysfs attribute
Input: ili210x - add resolution to chip operations structure
Input: ili210x - do not retrieve/print chip firmware version
Input: mms114 - use device_get_match_data
Input: ili210x - remove unneeded suspend and resume handlers
Input: ili210x - do not unconditionally mark touchscreen as wakeup source
Input: ili210x - define and use chip operations structure
Input: ili210x - do not set parent device explicitly
Input: ili210x - handle errors from input_mt_init_slots()
Input: ili210x - switch to using threaded IRQ
Input: ili210x - add ILI2117 support
dt-bindings: input: touchscreen: ad7879: generic node names in example
Input: ar1021 - fix typo in preprocessor macro name
Input: synaptics-rmi4 - simplify data read in rmi_f54_work
Input: kxtj9 - switch to using polled mode of input devices
Input: kxtj9 - switch to using managed resources
...
- Updates to better support vmalloc space restrictions on PowerPC platforms.
- Cleanups to move common sysfs attributes to core 'struct device_type'
objects.
- Export the 'target_node' attribute (the effective numa node if pmem is
marked online) for regions and namespaces.
- Miscellaneous fixups and optimizations.
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Merge tag 'libnvdimm-for-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm updates from Dan Williams:
"The highlight this cycle is continuing integration fixes for PowerPC
and some resulting optimizations.
Summary:
- Updates to better support vmalloc space restrictions on PowerPC
platforms.
- Cleanups to move common sysfs attributes to core 'struct
device_type' objects.
- Export the 'target_node' attribute (the effective numa node if pmem
is marked online) for regions and namespaces.
- Miscellaneous fixups and optimizations"
* tag 'libnvdimm-for-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: (21 commits)
MAINTAINERS: Remove Keith from NVDIMM maintainers
libnvdimm: Export the target_node attribute for regions and namespaces
dax: Add numa_node to the default device-dax attributes
libnvdimm: Simplify root read-only definition for the 'resource' attribute
dax: Simplify root read-only definition for the 'resource' attribute
dax: Create a dax device_type
libnvdimm: Move nvdimm_bus_attribute_group to device_type
libnvdimm: Move nvdimm_attribute_group to device_type
libnvdimm: Move nd_mapping_attribute_group to device_type
libnvdimm: Move nd_region_attribute_group to device_type
libnvdimm: Move nd_numa_attribute_group to device_type
libnvdimm: Move nd_device_attribute_group to device_type
libnvdimm: Move region attribute group definition
libnvdimm: Move attribute groups to device type
libnvdimm: Remove prototypes for nonexistent functions
libnvdimm/btt: fix variable 'rc' set but not used
libnvdimm/pmem: Delete include of nd-core.h
libnvdimm/namespace: Differentiate between probe mapping and runtime mapping
libnvdimm/pfn_dev: Don't clear device memmap area during generic namespace probe
libnvdimm: Trivial comment fix
...
- omap : misc - catch error returned from pm_runtime_put_sync
- hisi : misc - drop .owner from platform_driver
- stm : change how wakeup is handled
- imx : fix - bailout on error and nuke correct irq
- imx : add support for imx7ulp platform
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Merge tag 'mailbox-v5.5' of git://git.linaro.org/landing-teams/working/fujitsu/integration
Pull mailbox updates from Jassi Brar:
- omap : misc - catch error returned from pm_runtime_put_sync
- hisi : misc - drop .owner from platform_driver
- stm : change how wakeup is handled
- imx : fix - bailout on error and nuke correct irq
- imx : add support for imx7ulp platform
* tag 'mailbox-v5.5' of git://git.linaro.org/landing-teams/working/fujitsu/integration:
mailbox: imx: add support for imx v1 mu
dt-bindings: mailbox: imx-mu: add imx7ulp MU support
mailbox: imx: Clear the right interrupts at shutdown
mailbox: imx: Fix Tx doorbell shutdown path
mailbox: stm32-ipcc: Update wakeup management
mailbox: no need to set .owner platform_driver_register
mailbox/omap: Handle if CONFIG_PM is disabled
This contains a number of cleanups to the core and several drivers, in
particular removing the requirement for drivers to implement pm_runtime.
It also udpates the location of the git tree in MAINTAINERS.
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Merge tag 'hwlock-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc
Pull hwspinlock updates from Bjorn Andersson:
"This contains a number of cleanups to the core and several drivers, in
particular removing the requirement for drivers to implement
pm_runtime.
It also udpates the location of the git tree in MAINTAINERS"
* tag 'hwlock-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc:
hwspinlock: u8500_hsem: Remove redundant PM runtime implementation
hwspinlock: sprd: Remove redundant PM runtime implementation
hwspinlock: Let the PM runtime can be optional
hwspinlock: Remove BUG_ON() from the hwspinlock core
hwspinlock: sprd: Use devm_hwspin_lock_register() to register hwlock controller
hwspinlock: sprd: Use devm_add_action_or_reset() for calls to clk_disable_unprepare()
hwspinlock: sprd: Check the return value of clk_prepare_enable()
hwspinlock: sprd: Change to use devm_platform_ioremap_resource()
hwspinlock: u8500_hsem: Use devm_hwspin_lock_register() to register hwlock controller
hwspinlock: u8500_hsem: Use devm_kzalloc() to allocate memory
hwspinlock: u8500_hsem: Change to use devm_platform_ioremap_resource()
MAINTAINERS: hwspinlock: update git tree location
This contains a number of bug fixes to the GLINK transport driver, an
off-by-one in the GLINK smem driver and a memory leak fix in the rpmsg
char driver.
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Merge tag 'rpmsg-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc
Pull rpmsg updates from Bjorn Andersson:
"This contains a number of bug fixes to the GLINK transport driver, an
off-by-one in the GLINK smem driver and a memory leak fix in the rpmsg
char driver"
* tag 'rpmsg-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc:
rpmsg: Fix Kconfig indentation
rpmsg: char: Simplify 'rpmsg_eptdev_release()'
rpmsg: glink: Free pending deferred work on remove
rpmsg: glink: Don't send pending rx_done during remove
rpmsg: glink: Fix rpmsg_register_device err handling
rpmsg: glink: Put an extra reference during cleanup
rpmsg: glink: Fix use after free in open_ack TIMEOUT case
rpmsg: glink: Fix reuse intents memory leak issue
rpmsg: glink: Set tail pointer to 0 at end of FIFO
rpmsg: char: release allocated memory
This adds support for booting the modem processor on Qualcomm MSM8998
and carries some cleanup up and bug fixes to the framework and the stm32
driver.
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Merge tag 'rproc-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc
Pull remoteproc updates from Bjorn Andersson:
"This adds support for booting the modem processor on Qualcomm MSM8998
and carries some cleanup up and bug fixes to the framework and the
stm32 driver"
* tag 'rproc-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc:
Revert "dt-bindings: remoteproc: stm32: add wakeup-source"
remoteproc: stm32: fix probe error case
remoteproc: stm32: wakeup the system by wdg irq
dt-bindings: remoteproc: stm32: add wakeup-source
remoteproc: Fix wrong rvring index computation
remoteproc: stm32: use workqueue to treat mailbox callback
remoteproc: fix argument 2 of rproc_mem_entry_init
remoteproc: qcom_q6v5_mss: Add support for MSM8998
dt-bindings: remoteproc: qcom: Add Q6v5 Modem PIL binding for MSM8998
remoteproc: debug: Remove unneeded NULL check
remoteproc: remove useless typedef
Pull i2c updates from Wolfram Sang:
"I2C has mostly driver updates this time.
The few noteworthy changes are: the core has now support for analog
and digital filters with at91 being the first user, a core addition to
replace the NULL returning i2c_new_probed_device() with an ERR_PTR
variant, and the pxa driver has finally being moved to use the generic
I2C slave interface. We have quite a significant number of reviews per
patch this time, so thank you to all involved!"
* 'i2c/for-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (37 commits)
video: fbdev: matrox: convert to i2c_new_scanned_device
i2c: icy: convert to i2c_new_scanned_device
i2c: replace i2c_new_probed_device with an ERR_PTR variant
i2c: Fix Kconfig indentation
i2c: smbus: Don't filter out duplicate alerts
i2c: i801: Correct Intel Jasper Lake SOC naming
i2c: i2c-stm32f7: fix 10-bits check in slave free id search loop
i2c: iproc: Add i2c repeated start capability
i2c: remove helpers for ref-counting clients
i2c: tegra: Use dma_request_chan() directly for channel request
i2c: sh_mobile: Use dma_request_chan() directly for channel request
i2c: qup: Use dma_request_chan() directly for channel request
i2c: at91: Use dma_request_chan() directly for channel request
i2c: rcar: Remove superfluous call to clk_get_rate()
i2c: pxa: remove unused i2c-slave APIs
i2c: pxa: migrate to new i2c_slave APIs
i2c: cros-ec-tunnel: Make the device acpi compatible
i2c: stm32f7: report dma error during probe
i2c: icy: no need to populate address for scanned device
i2c: xiic: Fix kerneldoc warnings
...
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Merge tag 'for-linus-20191129' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"I wasn't going to send this one off so soon, but unfortunately one of
the fixes from the previous pull broke the build on some archs. So I'm
sending this sooner rather than later. This contains:
- Add highmem.h include for io_uring, because of the kmap() additions
from last round. For some reason the build bot didn't spot this
even though it sat for days.
- Three minor ';' removals
- Add support for the Beurer CD-on-a-chip device
- Make io_uring work on MMU-less archs"
* tag 'for-linus-20191129' of git://git.kernel.dk/linux-block:
io_uring: fix missing kmap() declaration on powerpc
ataflop: Remove unneeded semicolon
block: sunvdc: Remove unneeded semicolon
drbd: Remove unneeded semicolon
io_uring: add mapping support for NOMMU archs
sr_vendor: support Beurer GL50 evo CD-on-a-chip devices.
cdrom: respect device capabilities during opening action
* New bootctl driver for Mellanox BlueField SoC.
* New driver to support System76 laptops.
* Temperature monitoring and fan control on Acer Aspire 7551
is now supported.
* Previously the Huawei driver handled only hotkeys.
After the conversion to WMI it has been expanded
to support newer laptop models.
* Big refactoring of intel-speed-select tools allows to
use it on Intel CascadeLake-N systems.
* Touchscreen support for ezpad 6 m4 and
Schneider SCT101CTM tablets
* Miscellaneous clean ups and fixes here and there.
The following is an automated git shortlog grouped by driver:
acerhdf:
- Add support for Acer Aspire 7551
- Rename Peter Feuerer to Peter Kaestle
Add System76 ACPI driver:
- Add System76 ACPI driver
asus-laptop:
- switch to using polled mode of input devices
classmate-laptop:
- remove unused variable
dell-laptop:
- disable kbd backlight on Inspiron 10xx
hdaps:
- switch to using polled mode of input devices
hp-wmi:
- Fix ACPI errors caused by passing 0 as input size
- Fix ACPI errors caused by too small buffer
huawei-wmi:
- Remove unnecessary battery mutex
- No need to check for battery name
- Stricter battery thresholds set
- Fix a precision vs width printf bug
- Avoid use of global variable when possible
- No need to keep pointer to platform device
- Don't leak memory on the exit
- huawei_wmi can be static
- Add debugfs support
- Add fn-lock support
- Add battery charging thresholds
- Implement huawei wmi management
- Add quirks and module parameters
- Move to platform driver
i2c-multi-instantiate:
- Fail the probe if no IRQ provided
intel_cht_int33fe:
- Split code to Micro-B and Type-C
intel_int0002_vgpio:
- Pass irqchip when adding gpiochip
intel_pmc_core:
- Add Comet Lake (CML) platform support to intel_pmc_core driver
- Fix the SoC naming inconsistency
intel_punit_ipc:
- Drop useless label
- use devm_platform_ioremap_resource() to simplify code
- Avoid error message when retrieving IRQ
peaq-wmi:
- switch to using polled mode of input devices
platform/mellanox:
- Fix Kconfig indentation
- Add bootctl driver for Mellanox BlueField Soc
tools/power/x86/intel-speed-select:
- Display TRL buckets for just base config level
- Ignore missing config level
- Increment version
- Use core count for base-freq mask
- Support platform with limited Intel(R) Speed Select
- Use Frequency weight for CLOS
- Make CLOS frequency in MHz
- Use mailbox for CLOS_PM_QOS_CONFIG
- Auto mode for CLX
- Correct CLX-N frequency units
- Change display of "avx" to "avx2"
- Extend command set for perf-profile
- Implement base-freq commands on CascadeLake-N
- Implement 'perf-profile info' on CascadeLake-N
- Implement CascadeLake-N help and command functions structures
- Add check for CascadeLake-N models
- Make process_command generic
- Add int argument to command functions
- Refuse to disable core-power when getting used
- Turbo-freq feature auto mode
- Base-freq feature auto mode
- Remove warning for unused result
toshiba_acpi:
- do not select INPUT_POLLDEV
touchscreen_dmi:
- Add info for the ezpad 6 m4 tablet
- Add touchscreen platform data for the Schneider SCT101CTM tablet
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Merge tag 'platform-drivers-x86-v5.5-1' of git://git.infradead.org/linux-platform-drivers-x86
Pull x86 platform driver updates from Andy Shevchenko:
- New bootctl driver for Mellanox BlueField SoC.
- New driver to support System76 laptops.
- Temperature monitoring and fan control on Acer Aspire 7551 is now
supported.
- Previously the Huawei driver handled only hotkeys. After the
conversion to WMI it has been expanded to support newer laptop
models.
- Big refactoring of intel-speed-select tools allows to use it on Intel
CascadeLake-N systems.
- Touchscreen support for ezpad 6 m4 and Schneider SCT101CTM tablets
- Miscellaneous clean ups and fixes here and there.
* tag 'platform-drivers-x86-v5.5-1' of git://git.infradead.org/linux-platform-drivers-x86: (59 commits)
platform/x86: hp-wmi: Fix ACPI errors caused by passing 0 as input size
platform/x86: hp-wmi: Fix ACPI errors caused by too small buffer
platform/x86: intel_pmc_core: Add Comet Lake (CML) platform support to intel_pmc_core driver
platform/x86: intel_pmc_core: Fix the SoC naming inconsistency
platform/mellanox: Fix Kconfig indentation
tools/power/x86/intel-speed-select: Display TRL buckets for just base config level
tools/power/x86/intel-speed-select: Ignore missing config level
platform/x86: touchscreen_dmi: Add info for the ezpad 6 m4 tablet
tools/power/x86/intel-speed-select: Increment version
tools/power/x86/intel-speed-select: Use core count for base-freq mask
tools/power/x86/intel-speed-select: Support platform with limited Intel(R) Speed Select
tools/power/x86/intel-speed-select: Use Frequency weight for CLOS
tools/power/x86/intel-speed-select: Make CLOS frequency in MHz
tools/power/x86/intel-speed-select: Use mailbox for CLOS_PM_QOS_CONFIG
tools/power/x86/intel-speed-select: Auto mode for CLX
tools/power/x86/intel-speed-select: Correct CLX-N frequency units
tools/power/x86/intel-speed-select: Change display of "avx" to "avx2"
tools/power/x86/intel-speed-select: Extend command set for perf-profile
Add touchscreen platform data for the Schneider SCT101CTM tablet
platform/x86: intel_int0002_vgpio: Pass irqchip when adding gpiochip
...
Pull HID updates from Jiri Kosina:
- Support for Logitech G15 (Hans de Goede)
- HID parser improvements, improving support for some devices; e.g.
Windows Precision Touchpad, products from Primax, etc. (Blaž
Hrastnik, Candle Sun)
- robustification of tablet mode support in google-whiskers driver
(Dmitry Torokhov)
- assorted small fixes, device-specific quirks and device ID additions
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid: (23 commits)
HID: rmi: Check that the RMI_STARTED bit is set before unregistering the RMI transport device
HID: quirks: remove hid-led devices from hid_have_special_driver
HID: Improve Windows Precision Touchpad detection.
HID: i2c-hid: Reset ALPS touchpads on resume
HID: i2c-hid: fix no irq after reset on raydium 3118
HID: logitech-hidpp: Silence intermittent get_battery_capacity errors
HID: i2c-hid: remove orphaned member sleep_delay
HID: quirks: Add quirk for HP MSU1465 PIXART OEM mouse
HID: core: check whether Usage Page item is after Usage ID items
HID: intel-ish-hid: Spelling s/diconnect/disconnect/
HID: google: Detect base folded usage instead of hard-coding whiskers
HID: logitech: Add depends on LEDS_CLASS to Logitech Kconfig entry
HID: lg-g15: Add support for the G510's M1-M3 and MR LEDs
HID: lg-g15: Add support for controlling the G510's RGB backlight
HID: lg-g15: Add support for the G510 keyboards' gaming keys
HID: lg-g15: Add support for the M1-M3 and MR LEDs
HID: lg-g15: Add keyboard and LCD backlight control
HID: Add driver for Logitech gaming keyboards (G15, G15 v2)
Input: Add event-codes for macro keys found on various keyboards
HID: hidraw: replace printk() with corresponding pr_xx() variant
...
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Merge tag 'linux-watchdog-5.5-rc1' of git://www.linux-watchdog.org/linux-watchdog
Pull watchdog updates from Wim Van Sebroeck:
- support for NCT6116D
- several small fixes and improvements
* tag 'linux-watchdog-5.5-rc1' of git://www.linux-watchdog.org/linux-watchdog: (24 commits)
watchdog: jz4740: Drop dependency on MACH_JZ47xx
watchdog: jz4740: Use regmap provided by TCU driver
watchdog: jz4740: Use WDT clock provided by TCU driver
dt-bindings: watchdog: sama5d4_wdt: add microchip,sam9x60-wdt compatible
watchdog: sama5d4_wdt: cleanup the bit definitions
watchdog: sprd: Fix the incorrect pointer getting from driver data
watchdog: aspeed: Fix clock behaviour for ast2600
watchdog: imx7ulp: Fix reboot hang
watchdog: make nowayout sysfs file writable
watchdog: prevent deferral of watchdogd wakeup on RT
watchdog: imx7ulp: Use definitions instead of magic values
watchdog: imx7ulp: Remove inline annotations
watchdog: imx7ulp: Remove unused structure member
watchdog: imx7ulp: Pass the wdog instance inimx7ulp_wdt_enable()
watchdog: wdat_wdt: Spelling s/configrable/configurable/
watchdog: bd70528: Trivial function documentation fix
watchdog: cadence: Do not show error in case of deferred probe
watchdog: Fix the race between the release of watchdog_core_data and cdev
watchdog: sbc7240_wdt: Fix yet another -Wimplicit-fallthrough warning
watchdog: intel-mid_wdt: Add WATCHDOG_NOWAYOUT support
...
Core changes:
- Expose pull up/down flags for the GPIO character device to
userspace. After clear input from the RaspberryPi and Beagle
communities, it has been established that prototyping,
industrial automation and make communities strongly need
this feature, and as we want people to use the character
device, we have implemented the simple pull up/down
interface for GPIO lines. This means we can specify that
a (chip-specific) pull up/down resistor can be enabled,
but does not offer fine-grained control such as cases
where the resistance of the same pull resistor can be
controlled (yet).
- Introduce devm_fwnode_gpiod_get_index() and start to phase out
the old symbol devm_fwnode_get_index_gpiod_from_child().
- A bit of documentation clean-up work.
- Introduce a define for GPIO line directions and deploy it
in all GPIO drivers in the drivers/gpio directory.
- Add a special callback to populate pin ranges when
cooperating with the pin control subsystem and registering
ranges as part of adding a gpiolib driver and a
gpio_irq_chip driver at the same time. This is also
deployed in the Intel Merrifield driver.
New drivers:
- RDA Micro GPIO controller.
- XGS-iproc GPIO driver.
Driver improvements:
- Wake event and debounce support on the Tegra 186 driver.
- Finalize the Aspeed SGPIO driver.
- MPC8xxx uses a normal IRQ handler rather than a chained
handler.
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Merge tag 'gpio-v5.5-1' of 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 v5.5 kernel cycle
Core changes:
- Expose pull up/down flags for the GPIO character device to
userspace.
After clear input from the RaspberryPi and Beagle communities, it
has been established that prototyping, industrial automation and
make communities strongly need this feature, and as we want people
to use the character device, we have implemented the simple pull
up/down interface for GPIO lines.
This means we can specify that a (chip-specific) pull up/down
resistor can be enabled, but does not offer fine-grained control
such as cases where the resistance of the same pull resistor can be
controlled (yet).
- Introduce devm_fwnode_gpiod_get_index() and start to phase out the
old symbol devm_fwnode_get_index_gpiod_from_child().
- A bit of documentation clean-up work.
- Introduce a define for GPIO line directions and deploy it in all
GPIO drivers in the drivers/gpio directory.
- Add a special callback to populate pin ranges when cooperating with
the pin control subsystem and registering ranges as part of adding
a gpiolib driver and a gpio_irq_chip driver at the same time. This
is also deployed in the Intel Merrifield driver.
New drivers:
- RDA Micro GPIO controller.
- XGS-iproc GPIO driver.
Driver improvements:
- Wake event and debounce support on the Tegra 186 driver.
- Finalize the Aspeed SGPIO driver.
- MPC8xxx uses a normal IRQ handler rather than a chained handler"
* tag 'gpio-v5.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (64 commits)
gpio: Add TODO item for regmap helper
Documentation: gpio: driver.rst: Fix warnings
gpio: of: Fix bogus reference to gpiod_get_count()
gpiolib: Grammar s/manager/managed/
gpio: lynxpoint: Setup correct IRQ handlers
MAINTAINERS: Replace my email by one @kernel.org
gpiolib: acpi: Make acpi_gpiochip_alloc_event always return AE_OK
gpio/mpc8xxx: fix qoriq GPIO reading
gpio: mpc8xxx: Don't overwrite default irq_set_type callback
gpiolib: acpi: Print pin number on acpi_gpiochip_alloc_event errors
gpiolib: fix coding style in gpiod_hog()
drm/bridge: ti-tfp410: switch to using fwnode_gpiod_get_index()
gpio: merrifield: Pass irqchip when adding gpiochip
gpio: merrifield: Add GPIO <-> pin mapping ranges via callback
gpiolib: Introduce ->add_pin_ranges() callback
gpio: mmio: remove untrue leftover comment
gpio: em: Use platform_get_irq() to obtain interrupts
gpio: tegra186: Add debounce support
gpio: tegra186: Program interrupt route mapping
gpio: tegra186: Derive register offsets from bank/port
...
- Add support for a "resource managed strongly uncachable ioremap" call
- Provide a collection of MFD helper macros
- Remove mfd_clone_cell() from MFD core
- Add NULL de-reference protection in MFD core
- Remove superfluous function fd_platform_add_cell() from MFD core
- Honour Device Tree's request to disable a device
- New Drivers
- Add support for MediaTek MT6323 PMIC
- New Device Support
- Add support for Gemini Lake to Intel LPSS PCI
- Add support for Cherry Trail Crystal Cover PMIC to Intel SoC PMIC CRC
- Add support for PM{I}8950 to Qualcomm SPMI PMIC
- Add support for U8420 to ST-Ericsson DB8500
- Add support for Comet Lake PCH-H to Intel LPSS PCI
- New Functionality
- Add support for requested supply clocks; madera-core
- Fix-ups
- Lower interrupt priority; rk808
- Use provided helpers (macros, group functions, defines); rk808,
ipaq-micro, ab8500-core, db8500-prcmu, mt6397-core, cs5535-mfd
- Only allocate IRQs on request; max77620
- Use simplified API; arizona-core
- Remove redundant and/or duplicated code; wm8998-tables, arizona, syscon
- Device Tree binding fix-ups; madera, max77650, max77693
- Remove mfd_cell->id abuse hack; cs5535-mfd
- Remove only user of mfd_clone_cell(); cs5535-mfd
- Make resources static; rohm-bd70528
- Bug Fixes
- Fix product ID for RK818; rk808
- Fix Power Key; rk808
- Fix booting on the BananaPi; mt6397-core
- Endian fix-ups; twl.h
- Fix static error checker warnings; ti_am335x_tscadc
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Merge tag 'mfd-next-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull MFD updates from Lee Jones:
"Core Frameworks:
- Add support for a "resource managed strongly uncachable ioremap"
call
- Provide a collection of MFD helper macros
- Remove mfd_clone_cell() from MFD core
- Add NULL de-reference protection in MFD core
- Remove superfluous function fd_platform_add_cell() from MFD core
- Honour Device Tree's request to disable a device
New Drivers:
- Add support for MediaTek MT6323 PMIC
New Device Support:
- Add support for Gemini Lake to Intel LPSS PCI
- Add support for Cherry Trail Crystal Cover PMIC to Intel SoC PMIC
CRC
- Add support for PM{I}8950 to Qualcomm SPMI PMIC
- Add support for U8420 to ST-Ericsson DB8500
- Add support for Comet Lake PCH-H to Intel LPSS PCI
New Functionality:
- Add support for requested supply clocks; madera-core
Fix-ups:
- Lower interrupt priority; rk808
- Use provided helpers (macros, group functions, defines); rk808,
ipaq-micro, ab8500-core, db8500-prcmu, mt6397-core, cs5535-mfd
- Only allocate IRQs on request; max77620
- Use simplified API; arizona-core
- Remove redundant and/or duplicated code; wm8998-tables, arizona,
syscon
- Device Tree binding fix-ups; madera, max77650, max77693
- Remove mfd_cell->id abuse hack; cs5535-mfd
- Remove only user of mfd_clone_cell(); cs5535-mfd
- Make resources static; rohm-bd70528
Bug Fixes:
- Fix product ID for RK818; rk808
- Fix Power Key; rk808
- Fix booting on the BananaPi; mt6397-core
- Endian fix-ups; twl.h
- Fix static error checker warnings; ti_am335x_tscadc"
* tag 'mfd-next-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (47 commits)
Revert "mfd: syscon: Set name of regmap_config"
mfd: ti_am335x_tscadc: Fix static checker warning
mfd: bd70528: Staticize bit value definitions
mfd: mfd-core: Honour Device Tree's request to disable a child-device
dt-bindings: mfd: max77693: Fix missing curly brace
mfd: intel-lpss: Add Intel Comet Lake PCH-H PCI IDs
mfd: db8500-prcmu: Support U8420-sysclk firmware
dt-bindings: mfd: max77650: Convert the binding document to yaml
mfd: mfd-core: Move pdev->mfd_cell creation back into mfd_add_device()
mfd: mfd-core: Remove usage counting for .{en,dis}able() call-backs
x86: olpc-xo1-sci: Remove invocation of MFD's .enable()/.disable() call-backs
x86: olpc-xo1-pm: Remove invocation of MFD's .enable()/.disable() call-backs
mfd: mfd-core: Remove mfd_clone_cell()
mfd: mfd-core: Protect against NULL call-back function pointer
mfd: cs5535-mfd: Register clients using their own dedicated MFD cell entries
mfd: cs5535-mfd: Request shared IO regions centrally
mfd: cs5535-mfd: Remove mfd_cell->id hack
mfd: cs5535-mfd: Use PLATFORM_DEVID_* defines and tidy error message
mfd: intel_soc_pmic_crc: Add "cht_crystal_cove_pmic" cell to CHT cells
mfd: madera: Add support for requesting the supply clocks
...
- Add support for an enable GPIO; lm3630a_bl
- Add support for short circuit handling; qcom-wled
- Add support for automatic string detection; qcom-wled
- Fix-ups
- Update Device Tree bindings; lm3630a-backlight, led-backlight, qcom-wled
- Constify; ipaq_micro_bl
- Optimise for CPU cycles; pwm_bl
- Coding style fix-ups; pwm_bl
- Trivial fix-ups (white space, comments, renaming); pwm_bl,
gpio_backlight, qcom-wled
- Kconfig dependency hacking; LCD_HP700
- Rename, refactor and add peripherals; pm8941-wled => qcom-wled
- Make use of GPIO look-up tables; tosa_bl, tosa_lcd
- Remove superfluous code; gpio_backlight
- Adapt GPIO direction handling; gpio_backlight
- Remove legacy use of platform data; gpio_backlight
- Bug Fixes
- Provide modules aliases; lm3630a_bl
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Merge tag 'backlight-next-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight
Pull backlight updates from Lee Jones:
"New Functionality:
- Add support for an enable GPIO; lm3630a_bl
- Add support for short circuit handling; qcom-wled
- Add support for automatic string detection; qcom-wled
Fix-ups:
- Update Device Tree bindings; lm3630a-backlight, led-backlight,
qcom-wled
- Constify; ipaq_micro_bl
- Optimise for CPU cycles; pwm_bl
- Coding style fix-ups; pwm_bl
- Trivial fix-ups (white space, comments, renaming); pwm_bl,
gpio_backlight, qcom-wled
- Kconfig dependency hacking; LCD_HP700
- Rename, refactor and add peripherals; pm8941-wled => qcom-wled
- Make use of GPIO look-up tables; tosa_bl, tosa_lcd
- Remove superfluous code; gpio_backlight
- Adapt GPIO direction handling; gpio_backlight
- Remove legacy use of platform data; gpio_backlight
Bug Fixes:
- Provide modules aliases; lm3630a_bl"
* tag 'backlight-next-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight: (32 commits)
backlight: qcom-wled: Fix spelling mistake "trigged" -> "triggered"
backlight: gpio: Pull gpio_backlight_initial_power_state() into probe
backlight: gpio: Use a helper variable for &pdev->dev
backlight: gpio: Remove unused fields from platform data
sh: ecovec24: don't set unused fields in platform data
backlight: gpio: Simplify the platform data handling
sh: ecovec24: add additional properties to the backlight device
backlight: gpio: Explicitly set the direction of the GPIO
backlight: gpio: Remove stray newline
backlight: gpio: Remove unneeded include
video: backlight: tosa: Use GPIO lookup table
backlight: qcom-wled: Add auto string detection logic
backlight: qcom-wled: Add support for short circuit handling
backlight: qcom-wled: Add support for WLED4 peripheral
backlight: qcom-wled: Restructure the driver for WLED3
backlight: qcom-wled: Rename PM8941* to WLED3
backlight: qcom-wled: Add new properties for PMI8998
backlight: qcom-wled: Restructure the qcom-wled bindings
backlight: qcom-wled: Rename pm8941-wled.c to qcom-wled.c
dt-bindings: backlight: lm3630a: Fix missing include
...
controller.
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Merge tag 'pinctrl-v5.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pinctrl fix from Linus Walleij:
"A oneliner fix adding the license to the new Intel pin controller,
avoiding a build-time warning"
* tag 'pinctrl-v5.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: Fix warning by adding missing MODULE_LICENSE
Pull LED updates from Pavel Machek:
"This contains usual small updates to drivers, and removal of PAGE_SIZE
limits on /sys/class/leds/<led>/trigger.
We should not be really having that many triggers; but with cpu
activity triggers we do, and we'll eventually need to fix it, but...
remove the limit for now"
* tag 'leds-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds: (26 commits)
leds: trigger: netdev: fix handling on interface rename
leds: an30259a: add a check for devm_regmap_init_i2c
leds: mlxreg: Fix possible buffer overflow
leds: pca953x: Use of_device_get_match_data()
leds: core: Fix leds.h structure documentation
leds: core: Fix devm_classdev_match to reference correct structure
leds: core: Remove extern from header
leds: lm3601x: Convert class registration to device managed
leds: flash: Add devm_* functions to the flash class
leds: flash: Remove extern from the header file
leds: flash: Convert non extended registration to inline
leds: Kconfig: Be consistent with the usage of "LED"
leds: remove PAGE_SIZE limit of /sys/class/leds/<led>/trigger
leds: tlc591xx: update the maximum brightness
leds: lm3692x: Use flags from LM3692X_BRT_CTRL
leds: lm3692x: Use flags from LM3692X_BOOST_CTRL
leds: lm3692x: Handle failure to probe the regulator
leds: lm3692x: Don't overwrite return value in error path
leds: lm3692x: Print error value on dev_err
leds: tlc591xx: use devm_led_classdev_register_ext()
...
then a bunch of driver updates and a handful of new drivers. In terms of
diffstat the Qualcomm and Amlogic drivers are high up there because of all the
clk data introcued by new drivers. The Nvidia Tegra driver had a lot of work
done this cycle too to support suspend/resume and memory controllers. And the
OMAP clk driver got proper clk and reset handling in place.
Rounding out the patches are various updates to remove unused data, mark things
static, correct incorrect data in drivers, etc. All the little things that
improve drivers and maintain code health. I will point out that there's a patch
in here for the GPIO clk driver, that almost nobody uses, which changes
behavior and causes clk_set_rate() to try to change the GPIO gate clk's parent.
Other than that things are fairly well SoC specific here.
Core:
- Add a clk provider API to get current parent index
- Plug a memory leak in clk_unregister() path
New Drivers:
- CGU in Ingenix X1000
- Bitmain BM1880 clks
- Qualcomm MSM8998 GPU clk controllers
- Qualcomm SC7180 GCC and RPMH clk controllers
- Qualcomm QCS404 Q6SSTOP clk controllers
- Add support for the Renesas R-Car M3-W+ (r8a77961) SoC
- Add support for the Renesas RZ/G2N (r8a774b1) SoC
- Add Tegra20/30 External Memory Clock (EMC) support
Updates:
- Make gpio gate clks propagate rate setting up to parent
- Prepare Armada 3700 for suspend to RAM by moving PCIe suspend/resume priority
- Drop unused variables, enums, etc. in various clk drivers
- Convert various drivers to use devm_platform_ioremap_resource()
- Use struct_size() some more in various clk drivers
- Improve Rockchip px30 clk tree
- Add suspend/resume support to Tegra210 clk driver
- Reimplement SOR clks on earlier Tegra SoCs, helping HDMI and DP
- Allwinner DT exports and H6 clk tree fixes
- Proper clk and reset handling for OMAP SoCs
- Revamped TI divider clk to clamp max divider
- Make 1443X/1416X PLL clock structure common for reusing among i.MX8 SoCs
- Drop IMX7ULP_CLK_MIPI_PLL clock, it shouldn't be used
- Add VIDEO2_PLL clock for imx8mq
- Add missing gate clock for pll1/2 fixed dividers on i.MX8 SoCs
- Add sm1 support in the Amlogic audio clock controller
- Switch some clocks on R-Car Gen2/3 to .determine_rate()
- Remove Renesas R-Car Gen2 legacy DT clock support
- Improve arithmetic divisions on Renesas R-Car Gen2 and Gen3
- Improve Renesas R-Car Gen3 SD clock handling
- Add rate table for Samsung exynos542x GPU and VPLL clks
- Fix potential CPU performance degradation after system suspend/resume cycle
on exynos542x SoCs
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk updates from Stephen Boyd:
"This merge window we have one small clk provider API in the core
framework and then a bunch of driver updates and a handful of new
drivers. In terms of diffstat the Qualcomm and Amlogic drivers are
high up there because of all the clk data introcued by new drivers.
The Nvidia Tegra driver had a lot of work done this cycle too to
support suspend/resume and memory controllers. And the OMAP clk driver
got proper clk and reset handling in place.
Rounding out the patches are various updates to remove unused data,
mark things static, correct incorrect data in drivers, etc. All the
little things that improve drivers and maintain code health. I will
point out that there's a patch in here for the GPIO clk driver, that
almost nobody uses, which changes behavior and causes clk_set_rate()
to try to change the GPIO gate clk's parent. Other than that things
are fairly well SoC specific here.
Core:
- Add a clk provider API to get current parent index
- Plug a memory leak in clk_unregister() path
New Drivers:
- CGU in Ingenix X1000
- Bitmain BM1880 clks
- Qualcomm MSM8998 GPU clk controllers
- Qualcomm SC7180 GCC and RPMH clk controllers
- Qualcomm QCS404 Q6SSTOP clk controllers
- Add support for the Renesas R-Car M3-W+ (r8a77961) SoC
- Add support for the Renesas RZ/G2N (r8a774b1) SoC
- Add Tegra20/30 External Memory Clock (EMC) support
Updates:
- Make gpio gate clks propagate rate setting up to parent
- Prepare Armada 3700 for suspend to RAM by moving PCIe
suspend/resume priority
- Drop unused variables, enums, etc. in various clk drivers
- Convert various drivers to use devm_platform_ioremap_resource()
- Use struct_size() some more in various clk drivers
- Improve Rockchip px30 clk tree
- Add suspend/resume support to Tegra210 clk driver
- Reimplement SOR clks on earlier Tegra SoCs, helping HDMI and DP
- Allwinner DT exports and H6 clk tree fixes
- Proper clk and reset handling for OMAP SoCs
- Revamped TI divider clk to clamp max divider
- Make 1443X/1416X PLL clock structure common for reusing among i.MX8
SoCs
- Drop IMX7ULP_CLK_MIPI_PLL clock, it shouldn't be used
- Add VIDEO2_PLL clock for imx8mq
- Add missing gate clock for pll1/2 fixed dividers on i.MX8 SoCs
- Add sm1 support in the Amlogic audio clock controller
- Switch some clocks on R-Car Gen2/3 to .determine_rate()
- Remove Renesas R-Car Gen2 legacy DT clock support
- Improve arithmetic divisions on Renesas R-Car Gen2 and Gen3
- Improve Renesas R-Car Gen3 SD clock handling
- Add rate table for Samsung exynos542x GPU and VPLL clks
- Fix potential CPU performance degradation after system
suspend/resume cycle on exynos542x SoCs"
* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (160 commits)
clk: aspeed: Add RMII RCLK gates for both AST2500 MACs
MAINTAINERS: Add entry for BM1880 SoC clock driver
clk: Add common clock driver for BM1880 SoC
dt-bindings: clock: Add devicetree binding for BM1880 SoC
clk: Add clk_hw_unregister_composite helper function definition
clk: Zero init clk_init_data in helpers
clk: ingenic: Allow drivers to be built with COMPILE_TEST
MAINTAINERS: Update section for Ux500 clock drivers
clk: mark clk_disable_unused() as __init
clk: Fix memory leak in clk_unregister()
clk: Ingenic: Add CGU driver for X1000.
dt-bindings: clock: Add X1000 bindings.
clk: tegra: Use match_string() helper to simplify the code
clk: pxa: fix one of the pxa RTC clocks
clk: sprd: Use IS_ERR() to validate the return value of syscon_regmap_lookup_by_phandle()
clk: armada-xp: remove unused code
clk: tegra: Fix build error without CONFIG_PM_SLEEP
clk: tegra: Add missing stubs for the case of !CONFIG_PM_SLEEP
clk: tegra: Optimize PLLX restore on Tegra20/30
clk: tegra: Add suspend and resume support on Tegra210
...
This is a series of cleanups for the y2038 work, mostly intended
for namespace cleaning: the kernel defines the traditional
time_t, timeval and timespec types that often lead to y2038-unsafe
code. Even though the unsafe usage is mostly gone from the kernel,
having the types and associated functions around means that we
can still grow new users, and that we may be missing conversions
to safe types that actually matter.
There are still a number of driver specific patches needed to
get the last users of these types removed, those have been
submitted to the respective maintainers.
Link: https://lore.kernel.org/lkml/20191108210236.1296047-1-arnd@arndb.de/
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'y2038-cleanups-5.5' of git://git.kernel.org:/pub/scm/linux/kernel/git/arnd/playground
Pull y2038 cleanups from Arnd Bergmann:
"y2038 syscall implementation cleanups
This is a series of cleanups for the y2038 work, mostly intended for
namespace cleaning: the kernel defines the traditional time_t, timeval
and timespec types that often lead to y2038-unsafe code. Even though
the unsafe usage is mostly gone from the kernel, having the types and
associated functions around means that we can still grow new users,
and that we may be missing conversions to safe types that actually
matter.
There are still a number of driver specific patches needed to get the
last users of these types removed, those have been submitted to the
respective maintainers"
Link: https://lore.kernel.org/lkml/20191108210236.1296047-1-arnd@arndb.de/
* tag 'y2038-cleanups-5.5' of git://git.kernel.org:/pub/scm/linux/kernel/git/arnd/playground: (26 commits)
y2038: alarm: fix half-second cut-off
y2038: ipc: fix x32 ABI breakage
y2038: fix typo in powerpc vdso "LOPART"
y2038: allow disabling time32 system calls
y2038: itimer: change implementation to timespec64
y2038: move itimer reset into itimer.c
y2038: use compat_{get,set}_itimer on alpha
y2038: itimer: compat handling to itimer.c
y2038: time: avoid timespec usage in settimeofday()
y2038: timerfd: Use timespec64 internally
y2038: elfcore: Use __kernel_old_timeval for process times
y2038: make ns_to_compat_timeval use __kernel_old_timeval
y2038: socket: use __kernel_old_timespec instead of timespec
y2038: socket: remove timespec reference in timestamping
y2038: syscalls: change remaining timeval to __kernel_old_timeval
y2038: rusage: use __kernel_old_timeval
y2038: uapi: change __kernel_time_t to __kernel_old_time_t
y2038: stat: avoid 'time_t' in 'struct stat'
y2038: ipc: remove __kernel_time_t reference from headers
y2038: vdso: powerpc: avoid timespec references
...
As part of the cleanup of some remaining y2038 issues, I came to
fs/compat_ioctl.c, which still has a couple of commands that need support
for time64_t.
In completely unrelated work, I spent time on cleaning up parts of this
file in the past, moving things out into drivers instead.
After Al Viro reviewed an earlier version of this series and did a lot
more of that cleanup, I decided to try to completely eliminate the rest
of it and move it all into drivers.
This series incorporates some of Al's work and many patches of my own,
but in the end stops short of actually removing the last part, which is
the scsi ioctl handlers. I have patches for those as well, but they need
more testing or possibly a rewrite.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'compat-ioctl-5.5' of git://git.kernel.org:/pub/scm/linux/kernel/git/arnd/playground
Pull removal of most of fs/compat_ioctl.c from Arnd Bergmann:
"As part of the cleanup of some remaining y2038 issues, I came to
fs/compat_ioctl.c, which still has a couple of commands that need
support for time64_t.
In completely unrelated work, I spent time on cleaning up parts of
this file in the past, moving things out into drivers instead.
After Al Viro reviewed an earlier version of this series and did a lot
more of that cleanup, I decided to try to completely eliminate the
rest of it and move it all into drivers.
This series incorporates some of Al's work and many patches of my own,
but in the end stops short of actually removing the last part, which
is the scsi ioctl handlers. I have patches for those as well, but they
need more testing or possibly a rewrite"
* tag 'compat-ioctl-5.5' of git://git.kernel.org:/pub/scm/linux/kernel/git/arnd/playground: (42 commits)
scsi: sd: enable compat ioctls for sed-opal
pktcdvd: add compat_ioctl handler
compat_ioctl: move SG_GET_REQUEST_TABLE handling
compat_ioctl: ppp: move simple commands into ppp_generic.c
compat_ioctl: handle PPPIOCGIDLE for 64-bit time_t
compat_ioctl: move PPPIOCSCOMPRESS to ppp_generic
compat_ioctl: unify copy-in of ppp filters
tty: handle compat PPP ioctls
compat_ioctl: move SIOCOUTQ out of compat_ioctl.c
compat_ioctl: handle SIOCOUTQNSD
af_unix: add compat_ioctl support
compat_ioctl: reimplement SG_IO handling
compat_ioctl: move WDIOC handling into wdt drivers
fs: compat_ioctl: move FITRIM emulation into file systems
gfs2: add compat_ioctl support
compat_ioctl: remove unused convert_in_user macro
compat_ioctl: remove last RAID handling code
compat_ioctl: remove /dev/raw ioctl translation
compat_ioctl: remove PCI ioctl translation
compat_ioctl: remove joystick ioctl translation
...
Pull sysctl system call removal from Eric Biederman:
"As far as I can tell we have reached the point where no one enables
the sysctl system call anymore. It still is enabled in a few
defconfigs but they are mostly the rarely used one and in asking
people about that it was more cut & paste enabled than anything else.
This is single commit that just deletes code. Leaving just enough code
so that the deprecated sysctl warning continues to be printed. If my
analysis turns out to be wrong and someone actually cares it will be
easy to revert this commit and have the system call again.
There was one new xtensa defconfig in linux-next that enabled the
system call this cycle and when asked about it the maintainer of the
code replied that it was not enabled on purpose. As of today's
linux-next tree that defconfig no longer enables the system call.
What we saw in the review discussion was that if we go a step farther
than my patch and mess with uapi headers there are pieces of code that
won't compile, but nothing minds the system call actually disappearing
from the kernel"
Link: https://lore.kernel.org/lkml/201910011140.EA0181F13@keescook/
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
sysctl: Remove the sysctl system call
There is a version 1.0 MU on i.MX7ULP platform.
One new version ID register is added, and it's offset is 0.
TRn registers are defined at the offset 0x20 ~ 0x2C.
RRn registers are defined at the offset 0x40 ~ 0x4C.
SR/CR registers are defined at 0x60/0x64.
Extend this driver to support it.
Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
Suggested-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Reviewed-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
There is a version 1.0 MU on imx7ulp, use "fsl,imx7ulp-mu" compatible
to support it.
Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Make sure to only clear enabled interrupts keeping count
of the connection type.
Suggested-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
The wakeup specific IRQ management is no more needed to wake up the
stm32 platform. A relationship has been established between the EXTI and
the RX IRQ, just need to declare the EXTI interrupt instead of the
IPCC RX IRQ.
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>
Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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Merge tag 'audit-pr-20191126' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit
Pull audit updates from Paul Moore:
"Audit is back for v5.5, albeit with only two patches:
- Allow for the auditing of suspicious O_CREAT usage via the new
AUDIT_ANOM_CREAT record.
- Remove a redundant if-conditional check found during code analysis.
It's a minor change, but when the pull request is only two patches
long, you need filler in the pull request email"
[ Heh on the pull request filler. I wish more people tried to write
better pull request messages, even if maybe it's not worth it for the
trivial cases ;^) - Linus ]
* tag 'audit-pr-20191126' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit:
audit: remove redundant condition check in kauditd_thread()
audit: Report suspicious O_CREAT usage
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Merge tag 'selinux-pr-20191126' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux
Pull selinux updates from Paul Moore:
"Only three SELinux patches for v5.5:
- Remove the size limit on SELinux policies, the limitation was a
lingering vestige and no longer necessary.
- Allow file labeling before the policy is loaded. This should ease
some of the burden when the policy is initially loaded (no need to
relabel files), but it should also help enable some new system
concepts which dynamically create the root filesystem in the
initrd.
- Add support for the "greatest lower bound" policy construct which
is defined as the intersection of the MLS range of two SELinux
labels"
* tag 'selinux-pr-20191126' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
selinux: default_range glblub implementation
selinux: allow labeling before policy is loaded
selinux: remove load size limit
The major change here is the work from Douglas Anderson that
reworks the way kdb stack traces are handled on SMP systems.
The effect is to allow all CPUs to issue their stack trace which
reduced the need for architecture specific code to support stack
tracing.
Also included are general of clean ups from Doug and myself:
* Remove some unused variables or arguments.
* Tidy up the kdb escape handling code and fix a couple of odd
corner cases.
- Better ignore escape characters that do not form part of an
escape sequence. This mostly benefits vi users since they are most
likely to press escape as a nervous habit but it won't harm anyone
else.
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
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Merge tag 'kgdb-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux
Pull kgdb updates from Daniel Thompson:
"The major change here is the work from Douglas Anderson that reworks
the way kdb stack traces are handled on SMP systems. The effect is to
allow all CPUs to issue their stack trace which reduced the need for
architecture specific code to support stack tracing.
Also included are general of clean ups from Doug and myself:
- Remove some unused variables or arguments.
- Tidy up the kdb escape handling code and fix a couple of odd corner
cases.
- Better ignore escape characters that do not form part of an escape
sequence. This mostly benefits vi users since they are most likely
to press escape as a nervous habit but it won't harm anyone else"
* tag 'kgdb-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux:
kdb: Tweak escape handling for vi users
kdb: Improve handling of characters from different input sources
kdb: Remove special case logic from kdb_read()
kdb: Simplify code to fetch characters from console
kdb: Tidy up code to handle escape sequences
kdb: Avoid array subscript warnings on non-SMP builds
kdb: Fix stack crawling on 'running' CPUs that aren't the master
kdb: Fix "btc <cpu>" crash if the CPU didn't round up
kdb: Remove unused "argcount" param from kdb_bt1(); make btaprompt bool
kgdb: Remove unused DCPU_SSTEP definition
- Hibernation support (Dexuan Cui).
- Latency testing framework (Branden Bonaby).
- Decoupling Hyper-V page size from guest page size (Himadri Pandya).
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Merge tag 'hyperv-next-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux
Pull Hyper-V updates from Sasha Levin:
- support for new VMBus protocols (Andrea Parri)
- hibernation support (Dexuan Cui)
- latency testing framework (Branden Bonaby)
- decoupling Hyper-V page size from guest page size (Himadri Pandya)
* tag 'hyperv-next-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux: (22 commits)
Drivers: hv: vmbus: Fix crash handler reset of Hyper-V synic
drivers/hv: Replace binary semaphore with mutex
drivers: iommu: hyperv: Make HYPERV_IOMMU only available on x86
HID: hyperv: Add the support of hibernation
hv_balloon: Add the support of hibernation
x86/hyperv: Implement hv_is_hibernation_supported()
Drivers: hv: balloon: Remove dependencies on guest page size
Drivers: hv: vmbus: Remove dependencies on guest page size
x86: hv: Add function to allocate zeroed page for Hyper-V
Drivers: hv: util: Specify ring buffer size using Hyper-V page size
Drivers: hv: Specify receive buffer size using Hyper-V page size
tools: hv: add vmbus testing tool
drivers: hv: vmbus: Introduce latency testing
video: hyperv: hyperv_fb: Support deferred IO for Hyper-V frame buffer driver
video: hyperv: hyperv_fb: Obtain screen resolution from Hyper-V host
hv_netvsc: Add the support of hibernation
hv_sock: Add the support of hibernation
video: hyperv_fb: Add the support of hibernation
scsi: storvsc: Add the support of hibernation
Drivers: hv: vmbus: Add module parameter to cap the VMBus version
...
Pull RAS fix from Borislav Petkov:
"One urgent fix for the thermal throttling machinery: the recent change
reworking the thermal notifications forgot to mask out read-only and
reserved bits in the thermal status MSRs, leading to exceptions while
writing those MSRs.
The fix takes care of masking out those bits first"
* 'ras-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mce/therm_throt: Mask out read-only and reserved MSR bits
Pull parisc updates from Helge Deller:
"Just trivial small updates: An assembler register optimization in the
inlined networking checksum functions, a compiler warning fix and
don't unneccesary print a runtime warning on machines which wouldn't
be affected anyway"
* 'parisc-5.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: Avoid spurious inequivalent alias kernel error messages
kexec: Fix pointer-to-int-cast warnings
parisc: Do not hardcode registers in checksum functions
Highlights:
- Infrastructure for secure boot on some bare metal Power9 machines. The
firmware support is still in development, so the code here won't actually
activate secure boot on any existing systems.
- A change to xmon (our crash handler / pseudo-debugger) to restrict it to
read-only mode when the kernel is lockdown'ed, otherwise it's trivial to drop
into xmon and modify kernel data, such as the lockdown state.
- Support for KASLR on 32-bit BookE machines (Freescale / NXP).
- Fixes for our flush_icache_range() and __kernel_sync_dicache() (VDSO) to work
with memory ranges >4GB.
- Some reworks of the pseries CMM (Cooperative Memory Management) driver to
make it behave more like other balloon drivers and enable some cleanups of
generic mm code.
- A series of fixes to our hardware breakpoint support to properly handle
unaligned watchpoint addresses.
Plus a bunch of other smaller improvements, fixes and cleanups.
Thanks to:
Alastair D'Silva, Andrew Donnellan, Aneesh Kumar K.V, Anthony Steinhauser,
Cédric Le Goater, Chris Packham, Chris Smart, Christophe Leroy, Christopher M.
Riedl, Christoph Hellwig, Claudio Carvalho, Daniel Axtens, David Hildenbrand,
Deb McLemore, Diana Craciun, Eric Richter, Geert Uytterhoeven, Greg
Kroah-Hartman, Greg Kurz, Gustavo L. F. Walbon, Hari Bathini, Harish, Jason
Yan, Krzysztof Kozlowski, Leonardo Bras, Mathieu Malaterre, Mauro S. M.
Rodrigues, Michal Suchanek, Mimi Zohar, Nathan Chancellor, Nathan Lynch, Nayna
Jain, Nick Desaulniers, Oliver O'Halloran, Qian Cai, Rasmus Villemoes, Ravi
Bangoria, Sam Bobroff, Santosh Sivaraj, Scott Wood, Thomas Huth, Tyrel
Datwyler, Vaibhav Jain, Valentin Longchamp, YueHaibing.
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Merge tag 'powerpc-5.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman:
"Highlights:
- Infrastructure for secure boot on some bare metal Power9 machines.
The firmware support is still in development, so the code here
won't actually activate secure boot on any existing systems.
- A change to xmon (our crash handler / pseudo-debugger) to restrict
it to read-only mode when the kernel is lockdown'ed, otherwise it's
trivial to drop into xmon and modify kernel data, such as the
lockdown state.
- Support for KASLR on 32-bit BookE machines (Freescale / NXP).
- Fixes for our flush_icache_range() and __kernel_sync_dicache()
(VDSO) to work with memory ranges >4GB.
- Some reworks of the pseries CMM (Cooperative Memory Management)
driver to make it behave more like other balloon drivers and enable
some cleanups of generic mm code.
- A series of fixes to our hardware breakpoint support to properly
handle unaligned watchpoint addresses.
Plus a bunch of other smaller improvements, fixes and cleanups.
Thanks to: Alastair D'Silva, Andrew Donnellan, Aneesh Kumar K.V,
Anthony Steinhauser, Cédric Le Goater, Chris Packham, Chris Smart,
Christophe Leroy, Christopher M. Riedl, Christoph Hellwig, Claudio
Carvalho, Daniel Axtens, David Hildenbrand, Deb McLemore, Diana
Craciun, Eric Richter, Geert Uytterhoeven, Greg Kroah-Hartman, Greg
Kurz, Gustavo L. F. Walbon, Hari Bathini, Harish, Jason Yan, Krzysztof
Kozlowski, Leonardo Bras, Mathieu Malaterre, Mauro S. M. Rodrigues,
Michal Suchanek, Mimi Zohar, Nathan Chancellor, Nathan Lynch, Nayna
Jain, Nick Desaulniers, Oliver O'Halloran, Qian Cai, Rasmus Villemoes,
Ravi Bangoria, Sam Bobroff, Santosh Sivaraj, Scott Wood, Thomas Huth,
Tyrel Datwyler, Vaibhav Jain, Valentin Longchamp, YueHaibing"
* tag 'powerpc-5.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (144 commits)
powerpc/fixmap: fix crash with HIGHMEM
x86/efi: remove unused variables
powerpc: Define arch_is_kernel_initmem_freed() for lockdep
powerpc/prom_init: Use -ffreestanding to avoid a reference to bcmp
powerpc: Avoid clang warnings around setjmp and longjmp
powerpc: Don't add -mabi= flags when building with Clang
powerpc: Fix Kconfig indentation
powerpc/fixmap: don't clear fixmap area in paging_init()
selftests/powerpc: spectre_v2 test must be built 64-bit
powerpc/powernv: Disable native PCIe port management
powerpc/kexec: Move kexec files into a dedicated subdir.
powerpc/32: Split kexec low level code out of misc_32.S
powerpc/sysdev: drop simple gpio
powerpc/83xx: map IMMR with a BAT.
powerpc/32s: automatically allocate BAT in setbat()
powerpc/ioremap: warn on early use of ioremap()
powerpc: Add support for GENERIC_EARLY_IOREMAP
powerpc/fixmap: Use __fix_to_virt() instead of fix_to_virt()
powerpc/8xx: use the fixmapped IMMR in cpm_reset()
powerpc/8xx: add __init to cpm1 init functions
...
Here is the nds32 patchset based on 5.4-rc8
Contained in here are
1. code clean up
2. add a nds32 maintainer
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Merge tag 'nds32-for-linus-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/greentime/linux
Pull nds32 updates from Greentime Hu:
- code clean up
- add a nds32 maintainer
* tag 'nds32-for-linus-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/greentime/linux:
MAINTAINERS: add nds32 maintainer
nds32: Move static keyword to the front of declaration
nds32: Fix typo in Kconfig.cpu
nds32: remove unneeded clean-files for DTB
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Merge tag 'notifications-pipe-prep-20191115' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs
Pull pipe rework from David Howells:
"This is my set of preparatory patches for building a general
notification queue on top of pipes. It makes a number of significant
changes:
- It removes the nr_exclusive argument from __wake_up_sync_key() as
this is always 1. This prepares for the next step:
- Adds wake_up_interruptible_sync_poll_locked() so that poll can be
woken up from a function that's holding the poll waitqueue
spinlock.
- Change the pipe buffer ring to be managed in terms of unbounded
head and tail indices rather than bounded index and length. This
means that reading the pipe only needs to modify one index, not
two.
- A selection of helper functions are provided to query the state of
the pipe buffer, plus a couple to apply updates to the pipe
indices.
- The pipe ring is allowed to have kernel-reserved slots. This allows
many notification messages to be spliced in by the kernel without
allowing userspace to pin too many pages if it writes to the same
pipe.
- Advance the head and tail indices inside the pipe waitqueue lock
and use wake_up_interruptible_sync_poll_locked() to poke poll
without having to take the lock twice.
- Rearrange pipe_write() to preallocate the buffer it is going to
write into and then drop the spinlock. This allows kernel
notifications to then be added the ring whilst it is filling the
buffer it allocated. The read side is stalled because the pipe
mutex is still held.
- Don't wake up readers on a pipe if there was already data in it
when we added more.
- Don't wake up writers on a pipe if the ring wasn't full before we
removed a buffer"
* tag 'notifications-pipe-prep-20191115' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
pipe: Remove sync on wake_ups
pipe: Increase the writer-wakeup threshold to reduce context-switch count
pipe: Check for ring full inside of the spinlock in pipe_write()
pipe: Remove redundant wakeup from pipe_write()
pipe: Rearrange sequence in pipe_write() to preallocate slot
pipe: Conditionalise wakeup in pipe_read()
pipe: Advance tail pointer inside of wait spinlock in pipe_read()
pipe: Allow pipes to have kernel-reserved slots
pipe: Use head and tail pointers for the ring, not cursor and length
Add wake_up_interruptible_sync_poll_locked()
Remove the nr_exclusive argument from __wake_up_sync_key()
pipe: Reduce #inclusion of pipe_fs_i.h
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Merge tag 'fsnotify_for_v5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull fsnotify updates from Jan Kara:
"Three fsnotify cleanups"
* tag 'fsnotify_for_v5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
fsnotify: Add git tree reference to MAINTAINERS
fsnotify/fdinfo: exportfs_encode_inode_fh() takes pointer as 4th argument
fsnotify: move declaration of fsnotify_mark_connector_cachep to fsnotify.h
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Merge tag 'for_v5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull ext2, quota, reiserfs cleanups and fixes from Jan Kara:
- Refactor the quota on/off kernel internal interfaces (mostly for
ubifs quota support as ubifs does not want to have inodes holding
quota information)
- A few other small quota fixes and cleanups
- Various small ext2 fixes and cleanups
- Reiserfs xattr fix and one cleanup
* tag 'for_v5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: (28 commits)
ext2: code cleanup for descriptor_loc()
fs/quota: handle overflows of sysctl fs.quota.* and report as unsigned long
ext2: fix improper function comment
ext2: code cleanup for ext2_try_to_allocate()
ext2: skip unnecessary operations in ext2_try_to_allocate()
ext2: Simplify initialization in ext2_try_to_allocate()
ext2: code cleanup by calling ext2_group_last_block_no()
ext2: introduce new helper ext2_group_last_block_no()
reiserfs: replace open-coded atomic_dec_and_mutex_lock()
ext2: check err when partial != NULL
quota: Handle quotas without quota inodes in dquot_get_state()
quota: Make dquot_disable() work without quota inodes
quota: Drop dquot_enable()
fs: Use dquot_load_quota_inode() from filesystems
quota: Rename vfs_load_quota_inode() to dquot_load_quota_inode()
quota: Simplify dquot_resume()
quota: Factor out setup of quota inode
quota: Check that quota is not dirty before release
quota: fix livelock in dquot_writeback_dquots
ext2: don't set *count in the case of failure in ext2_try_to_allocate()
...
- Introduce superblock checksum support;
- Set iowait when waiting I/O for sync decompression path;
- Several code cleanups.
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Merge tag 'erofs-for-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs
Pull erofs updates from Gao Xiang:
"No major kernel updates for this round since I'm fully diving into
LZMA algorithm internals now to provide high CR XZ algorihm support.
That needs more work and time for me to get a better compression time.
Summary:
- Introduce superblock checksum support
- Set iowait when waiting I/O for sync decompression path
- Several code cleanups"
* tag 'erofs-for-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs:
erofs: remove unnecessary output in erofs_show_options()
erofs: drop all vle annotations for runtime names
erofs: support superblock checksum
erofs: set iowait for sync decompression
erofs: clean up decompress queue stuffs
erofs: get rid of __stagingpage_alloc helper
erofs: remove dead code since managed cache is now built-in
erofs: clean up collection handling routines
Pavel Begunkov