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Merge series from Zhang Qilong <zhangqilong3@huawei.com>:
The pm_runtime_enable will increase power disable depth. Thus
a pairing decrement is needed when error returns to keep it
balanced. This series of patches fixed it in spi probe.
Use the devm_platform_ioremap_resource_byname() helper instead of
calling platform_get_resource_byname() and devm_ioremap_resource()
separately.
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20220924131854.964923-3-yangyingliang@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Use the devm_platform_get_and_ioremap_resource() helper instead of calling
platform_get_resource() and devm_ioremap_resource() separately.
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20220924131854.964923-2-yangyingliang@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Use the devm_platform_get_and_ioremap_resource() helper instead of calling
platform_get_resource() and devm_ioremap_resource() separately.
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20220924131854.964923-1-yangyingliang@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The pm_runtime_enable will increase power disable depth. Thus
a pairing decrement is needed on the error handling path to
keep it balanced according to context.
Fixes:db91841b58f9a ("spi/omap100k: Convert to runtime PM")
Signed-off-by: Zhang Qilong <zhangqilong3@huawei.com>
Link: https://lore.kernel.org/r/20220924121310.78331-4-zhangqilong3@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The pm_runtime_enable will increase power disable depth. Thus
a pairing decrement is needed on the error handling path to
keep it balanced according to context.
Fixes:abf00907538e2 ("spi: dw: Add Baikal-T1 SPI Controller glue driver")
Signed-off-by: Zhang Qilong <zhangqilong3@huawei.com>
Link: https://lore.kernel.org/r/20220924121310.78331-3-zhangqilong3@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The pm_runtime_enable will increase power disable depth. Thus
a pairing decrement is needed on the error handling path to
keep it balanced according to context.
Fixes:73d5fe0462702 ("spi: cadence-quadspi: Remove spi_master_put() in probe failure path")
Signed-off-by: Zhang Qilong <zhangqilong3@huawei.com>
Link: https://lore.kernel.org/r/20220924121310.78331-2-zhangqilong3@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Switch to use devm_spi_alloc_master() to simpify error path.
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220920142216.3002291-1-yangyingliang@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
devm_ioremap_resource() prints error message in itself. Remove the
dev_err call to avoid redundant error message.
Signed-off-by: Shang XiaoJing <shangxiaojing@huawei.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Link: https://lore.kernel.org/r/20220923101632.19170-1-shangxiaojing@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This switches the driver to use gpiod API instead of legacy gpio API,
which will brings us close to removing of_get_gpio() and other
OF-specific old APIs.
No functional change intended beyond some differences in error messages.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/Yy07WbMAG4bPgYNd@google.com
Signed-off-by: Mark Brown <broonie@kernel.org>
devm_ioremap_resource() prints error message in itself. Remove the
dev_err call to avoid redundant error message.
Signed-off-by: Shang XiaoJing <shangxiaojing@huawei.com>
Link: https://lore.kernel.org/r/20220923101726.19420-1-shangxiaojing@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Switch to use devm_spi_alloc_master() to simpify error path.
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Tested-by: Max Filippov <jcmvbkbc@gmail.com>
Acked-by: Max Filippov <jcmvbkbc@gmail.com>
Link: https://lore.kernel.org/r/20220920114448.2681053-1-yangyingliang@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The sparse tool complains as follows:
drivers/spi/spi-meson-spicc.c:570:22: warning:
symbol 'meson_spicc_pow2_clk_ops' was not declared. Should it be static?
This symbol is not used outside of spi-meson-spicc.c, so marks it static.
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20220922040807.1409540-1-weiyongjun@huaweicloud.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This condition was accidentally changed from "if (status < 0)" to
"if (status)". The platform_get_irq() function returns non-zero
positive values on success so, unfortunately, the driver could not be
used. Change the condition back to how it was.
Fixes: f4ca8c88c2 ("spi: omap2-mcspi: Switch to use dev_err_probe() helper")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/Yyq8Q/kd301wVzg8@kili
Signed-off-by: Mark Brown <broonie@kernel.org>
Add a test where a small and a large transfer in a message hit the same
cache line. This test currently fails on spi-s3c64xx on in DMA mode
since it ends up mixing DMA and PIO without proper cache maintenance.
Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com>
Link: https://lore.kernel.org/r/20220916113951.228398-2-vincent.whitchurch@axis.com
Signed-off-by: Mark Brown <broonie@kernel.org>
In the probe path, dev_err() can be replace with dev_err_probe()
which will check if error code is -EPROBE_DEFER and prints the
error name.
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20220917122504.1896302-1-yangyingliang@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Let the core handle all the chipselect bakery and replace
transfer_one_message() by transfer_one() and prepare_message().
At the time being, there is fsl_spi_cs_control() to handle
chipselects. That function handles both GPIO and non-GPIO
chipselects. The GPIO chipselects will now be handled by
the core directly, so only handle non-GPIO chipselects and
hook it to ->set_cs
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Link: https://lore.kernel.org/r/753266abafe81722d86c3ddb8bac8ef1cb00fe8c.1660829841.git.christophe.leroy@csgroup.eu
Signed-off-by: Mark Brown <broonie@kernel.org>
The Rockchip rk3399 TRM mentions that pd_sdioaudio includes
sdio, spi, i2s and spdif. Add a power-domains property to
to match reality with spi-rockchip.yaml.
Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/12af4fe6-4d35-cb4a-f5f6-06e3aba990cb@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The commit 5e0531f6b9 ("spi: Add capability to perform some transfer
with chipselect off") added a new flag but squeezed it into a wrong
group of struct spi_transfer members (note that SPI_NBITS_* are macros
for easier interpretation of the tx_nbits and rx_nbits bitfields).
Group cs_change and cs_off flags together and their doc strings.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220908130518.32186-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Since [1], controller's busy flag isn't set anymore when the
__spi_transfer_message_noqueue() is used instead of the
__spi_pump_transfer_message() logic for spi_sync transfers.
Since the pow2 clock ops were limited to only be available when a
transfer is ongoing (between prepare_transfer_hardware and
unprepare_transfer_hardware callbacks), the only way to track this
down is to check for the controller cur_msg.
[1] ae7d2346dc ("spi: Don't use the message queue if possible in spi_sync")
Fixes: 09992025da ("spi: meson-spicc: add local pow2 clock ops to preserve rate between messages")
Fixes: ae7d2346dc ("spi: Don't use the message queue if possible in spi_sync")
Reported-by: Markus Schneider-Pargmann <msp@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Tested-by: Markus Schneider-Pargmann <msp@baylibre.com>
Link: https://lore.kernel.org/r/20220908121803.919943-1-narmstrong@baylibre.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Return the value pm_runtime_force_suspend() directly instead of storing
it in another redundant variable.
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: ye xingchen <ye.xingchen@zte.com.cn>
Link: https://lore.kernel.org/r/20220908010429.342875-1-ye.xingchen@zte.com.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
Some components require a few clock cycles with chipselect off before
or/and after the data transfer done with CS on.
Typically IDT 801034 QUAD PCM CODEC datasheet states "Note *: CCLK
should have one cycle before CS goes low, and two cycles after
CS goes high".
The cycles "before" are implicitely provided by all previous activity
on the SPI bus. But the cycles "after" must be provided in order to
terminate the SPI transfer.
In order to use that kind of component, add a cs_off flag to
spi_transfer struct. When this flag is set, the transfer is performed
with chipselect off. This allows consummer to add a dummy transfer
at the end of the transfer list which is performed with chipselect
OFF, providing the required additional clock cycles.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Link: https://lore.kernel.org/r/434165c46f06d802690208a11e7ea2500e8da4c7.1662558898.git.christophe.leroy@csgroup.eu
Signed-off-by: Mark Brown <broonie@kernel.org>
In order to make the underneath API easier to change in the future,
prevent users from dereferencing fwnode from struct device. Instead,
use the specific dev_fwnode() API for that.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220906161048.39953-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Add the missing clk_disable_unprepare() before return
from spi_qup_pm_resume_runtime() in the error handling case.
Fixes: dae1a7700b (“spi: qup: Handle clocks in pm_runtime suspend and resume”)
Signed-off-by: Xu Qiang <xuqiang36@huawei.com>
Link: https://lore.kernel.org/r/20220825065324.68446-2-xuqiang36@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Add the missing clk_disable_unprepare() before return
from spi_qup_resume() in the error handling case.
Fixes: 64ff247a97 (“spi: Add Qualcomm QUP SPI controller support”)
Signed-off-by: Xu Qiang <xuqiang36@huawei.com>
Link: https://lore.kernel.org/r/20220825065324.68446-1-xuqiang36@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
- Fix handling of PCI domains in /proc on 32-bit systems using the recently added support
for numbering buses from zero for each domain.
- A fix and a revert for some changes to use READ/WRITE_ONCE() which caused problems with
KASAN enabled due to sanitisation calls being introduced in low-level paths that can't
cope with it.
- Fix build errors on 32-bit caused by the syscall table being misaligned sometimes.
- Two fixes to get IBM Cell native machines booting again, which had bit-rotted while my
QS22 was temporarily out of action.
- Fix the papr_scm driver to not assume the order of events returned by the hypervisor is
stable, and a related compile fix.
Thanks to: Aneesh Kumar K.V, Christophe Leroy, Jordan Niethe, Kajol Jain, Masahiro Yamada,
Nathan Chancellor, Pali Rohár, Vaibhav Jain, Zhouyi Zhou.
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Merge tag 'powerpc-6.0-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
- Fix handling of PCI domains in /proc on 32-bit systems using the
recently added support for numbering buses from zero for each domain.
- A fix and a revert for some changes to use READ/WRITE_ONCE() which
caused problems with KASAN enabled due to sanitisation calls being
introduced in low-level paths that can't cope with it.
- Fix build errors on 32-bit caused by the syscall table being
misaligned sometimes.
- Two fixes to get IBM Cell native machines booting again, which had
bit-rotted while my QS22 was temporarily out of action.
- Fix the papr_scm driver to not assume the order of events returned by
the hypervisor is stable, and a related compile fix.
Thanks to Aneesh Kumar K.V, Christophe Leroy, Jordan Niethe, Kajol Jain,
Masahiro Yamada, Nathan Chancellor, Pali Rohár, Vaibhav Jain, and Zhouyi
Zhou.
* tag 'powerpc-6.0-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/papr_scm: Ensure rc is always initialized in papr_scm_pmu_register()
Revert "powerpc/irq: Don't open code irq_soft_mask helpers"
powerpc: Fix hard_irq_disable() with sanitizer
powerpc/rtas: Fix RTAS MSR[HV] handling for Cell
Revert "powerpc: Remove unused FW_FEATURE_NATIVE references"
powerpc: align syscall table for ppc32
powerpc/pci: Enable PCI domains in /proc when PCI bus numbers are not unique
powerpc/papr_scm: Fix nvdimm event mappings
-Wformat was recently re-enabled for builds with clang, then quickly
re-disabled, due to concerns stemming from the frequency of default
argument promotion related warning instances.
commit 258fafcd06 ("Makefile.extrawarn: re-enable -Wformat for clang")
commit 21f9c8a13b ("Revert "Makefile.extrawarn: re-enable -Wformat for clang"")
ISO WG14 has ratified N2562 to address default argument promotion
explicitly for printf, as part of the upcoming ISO C2X standard.
The behavior of clang was changed in clang-16 to not warn for the cited
cases in all language modes.
Add a version check, so that users of clang-16 now get the full effect
of -Wformat. For older clang versions, re-enable flags under the
-Wformat group that way users still get some useful checks related to
format strings, without noisy default argument promotion warnings. I
intentionally omitted -Wformat-y2k and -Wformat-security from being
re-enabled, which are also part of -Wformat in clang-16.
Link: https://github.com/ClangBuiltLinux/linux/issues/378
Link: https://github.com/llvm/llvm-project/issues/57102
Link: https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2562.pdf
Suggested-by: Justin Stitt <jstitt007@gmail.com>
Suggested-by: Nathan Chancellor <nathan@kernel.org>
Suggested-by: Youngmin Nam <youngmin.nam@samsung.com>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
- MAINTAINERS update
- fix resource leaks in gpio-mockup and gpio-pxa
- add missing locking in gpio-pca953x
- use 32-bit I/O in gpio-realtek-otto
- make irq_chip structures immutable in four more drivers
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Merge tag 'gpio-fixes-for-v6.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio fixes from Bartosz Golaszewski:
"A a set of fixes from the GPIO subsystem.
Most are small driver fixes except the realtek-otto driver patch which
is pretty big but addresses a significant flaw that can cause the CPU
to stay infinitely busy on uncleared ISR on some platforms.
Summary:
- MAINTAINERS update
- fix resource leaks in gpio-mockup and gpio-pxa
- add missing locking in gpio-pca953x
- use 32-bit I/O in gpio-realtek-otto
- make irq_chip structures immutable in four more drivers"
* tag 'gpio-fixes-for-v6.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpio: ws16c48: Make irq_chip immutable
gpio: 104-idio-16: Make irq_chip immutable
gpio: 104-idi-48: Make irq_chip immutable
gpio: 104-dio-48e: Make irq_chip immutable
gpio: realtek-otto: switch to 32-bit I/O
gpio: pca953x: Add mutex_lock for regcache sync in PM
gpio: mockup: remove gpio debugfs when remove device
gpio: pxa: use devres for the clock struct
MAINTAINERS: rectify entry for XILINX GPIO DRIVER
Kernel warns about mutable irq_chips:
"not an immutable chip, please consider fixing!"
Make the struct irq_chip const, flag it as IRQCHIP_IMMUTABLE, add the
new helper functions, and call the appropriate gpiolib functions.
Signed-off-by: William Breathitt Gray <william.gray@linaro.org>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Kernel warns about mutable irq_chips:
"not an immutable chip, please consider fixing!"
Make the struct irq_chip const, flag it as IRQCHIP_IMMUTABLE, add the
new helper functions, and call the appropriate gpiolib functions.
Signed-off-by: William Breathitt Gray <william.gray@linaro.org>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Kernel warns about mutable irq_chips:
"not an immutable chip, please consider fixing!"
Make the struct irq_chip const, flag it as IRQCHIP_IMMUTABLE, add the
new helper functions, and call the appropriate gpiolib functions.
Signed-off-by: William Breathitt Gray <william.gray@linaro.org>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Kernel warns about mutable irq_chips:
"not an immutable chip, please consider fixing!"
Make the struct irq_chip const, flag it as IRQCHIP_IMMUTABLE, add the
new helper functions, and call the appropriate gpiolib functions.
Signed-off-by: William Breathitt Gray <william.gray@linaro.org>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
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Merge tag 'for-linus-6.0-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen fixes from Juergen Gross:
- a minor fix for the Xen grant driver
- a small series fixing a recently introduced problem in the Xen
blkfront/blkback drivers with negotiation of feature usage
* tag 'for-linus-6.0-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen/grants: prevent integer overflow in gnttab_dma_alloc_pages()
xen-blkfront: Cache feature_persistent value before advertisement
xen-blkfront: Advertise feature-persistent as user requested
xen-blkback: Advertise feature-persistent as user requested
- GT1158 ID added to Goodix touchscreen driver
- Boeder Force Feedback Wheel USB added to iforce joystick driver
- fixup for iforce driver to avoid hangups
- fix autoloading of rk805-pwrkey driver.
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Merge tag 'input-for-v6.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input fixes from Dmitry Torokhov:
- GT1158 ID added to Goodix touchscreen driver
- Boeder Force Feedback Wheel USB added to iforce joystick driver
- fixup for iforce driver to avoid hangups
- fix autoloading of rk805-pwrkey driver.
* tag 'input-for-v6.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: iforce - add support for Boeder Force Feedback Wheel
Input: iforce - wake up after clearing IFORCE_XMIT_RUNNING flag
Input: goodix - add compatible string for GT1158
MAINTAINERS: add include/dt-bindings/input to INPUT DRIVERS
Input: rk805-pwrkey - fix module autoloading
Input: goodix - add support for GT1158
dt-bindings: input: touchscreen: add compatible string for Goodix GT1158
Here are some small tty/serial/vt driver fixes for 6.0-rc4 that resolve
a number of reported issues:
- n_gsm fixups for previous changes that caused problems
- much-reported serdev crash fix that showed up in 6.0-rc1
- vt font selection bugfix
- kerneldoc build warning fixes
- other tiny serial core fixes
All of these have been in linux-next for a while with no reported
problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-6.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial driver fixes from Greg KH:
"Here are some small tty/serial/vt driver fixes for 6.0-rc4 that
resolve a number of reported issues:
- n_gsm fixups for previous changes that caused problems
- much-reported serdev crash fix that showed up in 6.0-rc1
- vt font selection bugfix
- kerneldoc build warning fixes
- other tiny serial core fixes
All of these have been in linux-next for a while with no reported
problems"
* tag 'tty-6.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
tty: n_gsm: avoid call of sleeping functions from atomic context
tty: n_gsm: replace kicktimer with delayed_work
tty: n_gsm: initialize more members at gsm_alloc_mux()
tty: n_gsm: add sanity check for gsm->receive in gsm_receive_buf()
tty: serial: atmel: Preserve previous USART mode if RS485 disabled
tty: serial: lpuart: disable flow control while waiting for the transmit engine to complete
tty: Fix lookahead_buf crash with serdev
serial: fsl_lpuart: RS485 RTS polariy is inverse
vt: Clear selection before changing the font
serial: document start_rx member at struct uart_ops
Here are 3 small staging driver fixes for 6.0-rc4 that resolve some
reported problems and add some a device id:
- new device id for r8188eu driver
- use-after-free bugfixes for the rtl8712 driver
- fix up firmware dependency problem for the r8188eu driver
All of these have been in linux-next for a while with no reported
problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-6.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging driver fixes from Greg KH:
"Here are three small staging driver fixes for 6.0-rc4 that resolve
some reported problems and add some a device id:
- new device id for r8188eu driver
- use-after-free bugfixes for the rtl8712 driver
- fix up firmware dependency problem for the r8188eu driver
All of these have been in linux-next for a while with no reported
problems"
* tag 'staging-6.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
staging: rtl8712: fix use after free bugs
staging: r8188eu: Add Rosewill USB-N150 Nano to device tables
staging: r8188eu: add firmware dependency
to the core framework. We had to revert out a commit that affected boot
on some devices that have the CLK_OPS_PARENT_ENABLE flag set. It isn't
critical to have that fix so we'll try again next time.
Driver side fixes include:
- Plug an of node refcount bug in the TI clk driver
- Fix the error handling in the raspberry pi firmware get_rate
so that errors don't look like valid frequencies
- Avoid going out of bounds in the raspberry pi driver too if the
video firmware returns something we're not expecting
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Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk fixes from Stephen Boyd:
"Here's a collection of primarily clk driver fixes, with a couple fixes
to the core framework.
We had to revert out a commit that affected boot on some devices that
have the CLK_OPS_PARENT_ENABLE flag set. It isn't critical to have
that fix so we'll try again next time.
Driver side fixes include:
- Plug an OF-node refcount bug in the TI clk driver
- Fix the error handling in the raspberry pi firmware get_rate so
that errors don't look like valid frequencies
- Avoid going out of bounds in the raspberry pi driver too if the
video firmware returns something we're not expecting"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
Revert "clk: core: Honor CLK_OPS_PARENT_ENABLE for clk gate ops"
clk: bcm: rpi: Show clock id limit in error case
clk: bcm: rpi: Add missing newline
clk: bcm: rpi: Prevent out-of-bounds access
clk: bcm: rpi: Fix error handling of raspberrypi_fw_get_rate
clk: core: Fix runtime PM sequence in clk_core_unprepare()
clk: core: Honor CLK_OPS_PARENT_ENABLE for clk gate ops
clk: ti: Fix missing of_node_get() ti_find_clock_provider()
The mmap lock protects the page walker from changes to the page tables
during the walk. However a read lock is insufficient to protect those
areas which don't have a VMA as munmap() detaches the VMAs before
downgrading to a read lock and actually tearing down PTEs/page tables.
For users of walk_page_range() the solution is to simply call pte_hole()
immediately without checking the actual page tables when a VMA is not
present. We now never call __walk_page_range() without a valid vma.
For walk_page_range_novma() the locking requirements are tightened to
require the mmap write lock to be taken, and then walking the pgd
directly with 'no_vma' set.
This in turn means that all page walkers either have a valid vma, or
it's that special 'novma' case for page table debugging. As a result,
all the odd '(!walk->vma && !walk->no_vma)' tests can be removed.
Fixes: dd2283f260 ("mm: mmap: zap pages with read mmap_sem in munmap")
Reported-by: Jann Horn <jannh@google.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Cc: Konstantin Khlebnikov <koct9i@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Return the value pa_to_nid() directly instead of storing it in another
redundant variable.
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: ye xingchen <ye.xingchen@zte.com.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
The kernel build error when unslected CONFIG_MEMORY_HOTREMOVE because
arch_remove_memory() is needed by mm/memory_hotplug.c but undefined.
Some build error messages like:
LD vmlinux.o
MODPOST vmlinux.symvers
MODINFO modules.builtin.modinfo
GEN modules.builtin
LD .tmp_vmlinux.kallsyms1
loongarch64-linux-gnu-ld: mm/memory_hotplug.o: in function `.L242':
memory_hotplug.c:(.ref.text+0x930): undefined reference to `arch_remove_memory'
make: *** [Makefile:1169：vmlinux] 错误 1
Removed CONFIG_MEMORY_HOTREMOVE requirement and rearrange the file refer
to the definitions of other platform architectures.
Signed-off-by: Yupeng Li <liyupeng@zbhlos.com>
Signed-off-by: Caicai <caizp2008@163.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
