| Commit message (Collapse) | Author | Age | Files | Lines |
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The 'syscall' instruction clobbers '%rcx' and '%r11', but they are not
listed in the inline Assembly that performs the syscall instruction.
No real bug is found. It wasn't buggy by luck because '%rcx' and '%r11'
are caller-saved registers, and not used in the functions, and the
functions are never inlined.
Add them to the clobber list for code correctness.
Fixes: f1c2bb8b9964ed31de988910f8b1cfb586d30091 ("um: implement a x86_64 vDSO")
Signed-off-by: Ammar Faizi <ammarfaizi2@gnuweeb.org>
Signed-off-by: Richard Weinberger <richard@nod.at>
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CONFIG_RUST currently supports x86_64, but does not support it under
UML. With the previous patches applied, adding support is trivial:
add CONFIG_HAVE_RUST to UML if X86_64 is set.
The scripts/generate_rust_target.rs file already checks for
CONFIG_X86_64, not CONFIG_X86, so is prepared for UML support.
The Rust support does not currently support X86_32.
Also, update the Rust architecture support documentation to not that
this is being maintained: I intend to look after this as best I can.
Signed-off-by: David Gow <davidgow@google.com>
Reviewed-by: Sergio González Collado <sergio.collado@gmail.com>
Tested-by: Sergio González Collado <sergio.collado@gmail.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
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The kernel disables all SSE and similar FP/SIMD instructions on
x86-based architectures (partly because we shouldn't be using floats in
the kernel, and partly to avoid the need for stack alignment, see:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53383 )
UML does not do the same thing, which isn't in itself a problem, but
does add to the list of differences between UML and "normal" x86 builds.
In addition, there was a crash bug with LLVM < 15 / rustc < 1.65 when
building with SSE, so disabling it fixes rust builds with earlier
compiler versions, see:
https://github.com/Rust-for-Linux/linux/pull/881
Signed-off-by: David Gow <davidgow@google.com>
Reviewed-by: Sergio González Collado <sergio.collado@gmail.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
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UML expects a position independent executable for some reason, so tell
rustc to generate pie objects. Otherwise we get a bunch of relocations
we can't deal with in libcore.
Signed-off-by: David Gow <davidgow@google.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
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It is only used within the same file.
Signed-off-by: Benjamin Berg <benjamin@sipsolutions.net>
Signed-off-by: Richard Weinberger <richard@nod.at>
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This means having the string literal in one line and using __func__
where appropriate.
Signed-off-by: Benjamin Berg <benjamin@sipsolutions.net>
Signed-off-by: Richard Weinberger <richard@nod.at>
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If the return value of the uml_parse_vector_ifspec function is NULL,
we should call kfree(params) to prevent memory leak.
Fixes: 49da7e64f33e ("High Performance UML Vector Network Driver")
Signed-off-by: Xiang Yang <xiangyang3@huawei.com>
Acked-By: Anton Ivanov <anton.ivanov@kot-begemot.co.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
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Due to changes in the iteration, there are now lockdep
checks indicating that we're missing locking here. Add
the missing locking where it's needed.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Acked-By: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
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while(){}, semicolon do not need to be appended.
Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=2237
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
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Return the value epoll_ctl() 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: Richard Weinberger <richard@nod.at>
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git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC fixes from Arnd Bergmann:
"A few bugfixes already came up during the merge window. Samsung,
ASpeed, Spear have minor DT changes, in case of Samsung this fixes a
regression compared to earlier versions.
Bartosz takes over as the primary maintainer for the TI DaVinci
platform, and we get a few last minute defconfig changes"
* tag 'arm-fixes-6.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
ARM: dts: spear320-hmi: correct STMPE GPIO compatible
ARM: dts: aspeed: p10bmc: Update battery node name
arm64: defconfig: Add IOSCHED_BFQ to the default configs
arm64: defconfig: Fix unintentional disablement of PCI on i.MX
ARM: dts: exynos: correct TMU phandle in Odroid XU3 family
ARM: dts: exynos: correct TMU phandle in Odroid HC1
ARM: dts: exynos: correct TMU phandle in Odroid XU
ARM: dts: exynos: correct TMU phandle in Exynos5250
ARM: dts: exynos: correct TMU phandle in Exynos4210
ARM: dts: exynos: correct TMU phandle in Exynos4
MAINTAINERS: make me the maintainer of DaVinci platforms
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https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into arm/fixes
Fixes for Samsung DTS ARM for v6.3
Thermal framework commit 3fd6d6e2b4e8 ("thermal/of: Rework the thermal
device tree initialization") merged in v6.1-rc1, exposed
misconfiguration of Exynos Thermal Monitoring Unit (TMU) thermal-sensors
property in DTS. This misconfiguration in DTS was working fine before
that Thermal commit, but now all thermal zones fail to register except
the first one (CPU). This can lead to missing cooling of a board and
eventually either emergency shutdown or damaged board.
* tag 'samsung-dt-fixes-6.3' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
ARM: dts: exynos: correct TMU phandle in Odroid XU3 family
ARM: dts: exynos: correct TMU phandle in Odroid HC1
ARM: dts: exynos: correct TMU phandle in Odroid XU
ARM: dts: exynos: correct TMU phandle in Exynos5250
ARM: dts: exynos: correct TMU phandle in Exynos4210
ARM: dts: exynos: correct TMU phandle in Exynos4
Link: https://lore.kernel.org/r/20230221095337.9453-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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TMU node uses 0 as thermal-sensor-cells, thus thermal zone referencing
it must not have an argument to phandle. This was not critical before,
but since rework of thermal Devicetree initialization in the
commit 3fd6d6e2b4e8 ("thermal/of: Rework the thermal device tree
initialization"), this leads to errors registering thermal zones other
than first one:
thermal_sys: cpu0-thermal: Failed to read thermal-sensors cells: -2
thermal_sys: Failed to find thermal zone for tmu id=0
exynos-tmu 10064000.tmu: Failed to register sensor: -2
exynos-tmu: probe of 10064000.tmu failed with error -2
Fixes: f1722d7dd8b8 ("ARM: dts: Define default thermal-zones for exynos5422")
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20230209105841.779596-6-krzysztof.kozlowski@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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TMU node uses 0 as thermal-sensor-cells, thus thermal zone referencing
it must not have an argument to phandle. This was not critical before,
but since rework of thermal Devicetree initialization in the
commit 3fd6d6e2b4e8 ("thermal/of: Rework the thermal device tree
initialization"), this leads to errors registering thermal zones other
than first one:
thermal_sys: cpu0-thermal: Failed to read thermal-sensors cells: -2
thermal_sys: Failed to find thermal zone for tmu id=0
exynos-tmu 10064000.tmu: Failed to register sensor: -2
exynos-tmu: probe of 10064000.tmu failed with error -2
Fixes: 1ac49427b566 ("ARM: dts: exynos: Add support for Hardkernel's Odroid HC1 board")
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20230209105841.779596-5-krzysztof.kozlowski@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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TMU node uses 0 as thermal-sensor-cells, thus thermal zone referencing
it must not have an argument to phandle. Since thermal-sensors property
is already defined in included exynosi5410.dtsi, drop it from
exynos5410-odroidxu.dts to fix the error and remoev redundancy.
Fixes: 88644b4c750b ("ARM: dts: exynos: Configure PWM, usb3503, PMIC and thermal on Odroid XU board")
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20230209105841.779596-4-krzysztof.kozlowski@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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TMU node uses 0 as thermal-sensor-cells, thus thermal zone referencing
it must not have an argument to phandle.
Cc: <stable@vger.kernel.org>
Fixes: 9843a2236003 ("ARM: dts: Provide dt bindings identical for Exynos TMU")
Link: https://lore.kernel.org/r/20230209105841.779596-3-krzysztof.kozlowski@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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TMU node uses 0 as thermal-sensor-cells, thus thermal zone referencing
it must not have an argument to phandle. Since thermal-sensors property is
already defined in included exynos4-cpu-thermal.dtsi, drop it from
exynos4210.dtsi to fix the error and remoev redundancy.
Fixes: 9843a2236003 ("ARM: dts: Provide dt bindings identical for Exynos TMU")
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20230209105841.779596-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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TMU node uses 0 as thermal-sensor-cells, thus thermal zone referencing
it must not have an argument to phandle.
Fixes: 328829a6ad70 ("ARM: dts: define default thermal-zones for exynos4")
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20230209105841.779596-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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The compatible is st,stmpe-gpio.
Fixes: e2eb69183ec4 ("ARM: SPEAr320: DT: Add SPEAr 320 HMI board support")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Link: https://lore.kernel.org/r/20230225162237.40242-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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The ADC sensor for the battery needs to be named "iio-hwmon" for
compatibility with user space applications.
Signed-off-by: Eddie James <eajames@linux.ibm.com>
Link: https://lore.kernel.org/r/20230202152759.67069-1-eajames@linux.ibm.com
Fixes: bf1914e2cfed ("ARM: dts: aspeed: p10bmc: Fix ADC iio-hwmon battery node name")
Signed-off-by: Joel Stanley <joel@jms.id.au>
Link: https://lore.kernel.org/r/20230221003352.1218797-1-joel@jms.id.au
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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ARM64 systems are often memory constrained and more often than not
use slow single-channel storage such as flash memory or MMC/SD-cards.
For any interactive systems (such as mobile phones, tablets,
chromebooks...) the BFQ I/O scheduler will be desireable.
Make sure the BFQ I/O scheduler is available on these systems.
ARM (32), Loongarch, MIPS, m68k, UM and S390 has also enabled BFQ in
their defconfigs, cf commit b495dfed706c4c5873c0dab8930ad6eb1d276a6c
"um: Cleanup CONFIG_IOSCHED_CFQ" where the motivation is that
it replaces the former CFQ scheduler.
Cc: linux-arm-kernel@lists.infradead.org
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Paolo Valente <paolo.valente@linaro.org>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Cc: Ulf Hansson <ulf.hansson@linaro.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20230224135230.2295826-1-linus.walleij@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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A recent update to support PCI endpoint mode on i.MX platforms
unintentionally disabled PCI host support for i.MX in defconfig. The
existing PCI_IMX6 was made a hidden option, selected by new options
PCI_IMX6_HOST (for the existing support) and PCI_IMX6_EP (for the
endpoint mode), but there has been no corresponding update to defconfig
so the PCI_IMX6 ends up getting disabled. Switch defconfig to
PCI_IMX6_HOST to preserve the existing functionality.
Fixes: 75c2f26da03f ("PCI: imx6: Add i.MX PCIe EP mode support")
Reported-by: "kernelci.org bot" <bot@kernelci.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Richard Zhu <hongxing.zhu@nxp.com>
Link: https://lore.kernel.org/r/20230220-imx-pci-defconfig-v1-1-2210cf08340e@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC driver updates from Arnd Bergmann:
"As usual, there are lots of minor driver changes across SoC platforms
from NXP, Amlogic, AMD Zynq, Mediatek, Qualcomm, Apple and Samsung.
These usually add support for additional chip variations in existing
drivers, but also add features or bugfixes.
The SCMI firmware subsystem gains a unified raw userspace interface
through debugfs, which can be used for validation purposes.
Newly added drivers include:
- New power management drivers for StarFive JH7110, Allwinner D1 and
Renesas RZ/V2M
- A driver for Qualcomm battery and power supply status
- A SoC device driver for identifying Nuvoton WPCM450 chips
- A regulator coupler driver for Mediatek MT81xxv"
* tag 'soc-drivers-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (165 commits)
power: supply: Introduce Qualcomm PMIC GLINK power supply
soc: apple: rtkit: Do not copy the reg state structure to the stack
soc: sunxi: SUN20I_PPU should depend on PM
memory: renesas-rpc-if: Remove redundant division of dummy
soc: qcom: socinfo: Add IDs for IPQ5332 and its variant
dt-bindings: arm: qcom,ids: Add IDs for IPQ5332 and its variant
dt-bindings: power: qcom,rpmpd: add RPMH_REGULATOR_LEVEL_LOW_SVS_L1
firmware: qcom_scm: Move qcom_scm.h to include/linux/firmware/qcom/
MAINTAINERS: Update qcom CPR maintainer entry
dt-bindings: firmware: document Qualcomm SM8550 SCM
dt-bindings: firmware: qcom,scm: add qcom,scm-sa8775p compatible
soc: qcom: socinfo: Add Soc IDs for IPQ8064 and variants
dt-bindings: arm: qcom,ids: Add Soc IDs for IPQ8064 and variants
soc: qcom: socinfo: Add support for new field in revision 17
soc: qcom: smd-rpm: Add IPQ9574 compatible
soc: qcom: pmic_glink: remove redundant calculation of svid
soc: qcom: stats: Populate all subsystem debugfs files
dt-bindings: soc: qcom,rpmh-rsc: Update to allow for generic nodes
soc: qcom: pmic_glink: add CONFIG_NET/CONFIG_OF dependencies
soc: qcom: pmic_glink: Introduce altmode support
...
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https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into soc/drivers
More Qualcomm driver updates for 6.3
The qcom_scm.h file is moved into firmware/qcom, to avoid having any
Qualcomm-specific files directly in include/linux.
Support for PMIC GLINK is introduced, which on newer Qualcomm platforms
provides an interface to the firmware implementing battery management
and USB Type-C handling. Together with the base driver comes the custom
altmode support driver.
SMD RPM gains support for IPQ9574, and socinfo is extended with support
for revision 17 of the information format and soc_id for IPQ5332 and
IPQ8064 are added.
The qcom_stats is changes not to fail when not all parts are
initialized.
* tag 'qcom-drivers-for-6.3-2' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux:
soc: qcom: socinfo: Add IDs for IPQ5332 and its variant
dt-bindings: arm: qcom,ids: Add IDs for IPQ5332 and its variant
dt-bindings: power: qcom,rpmpd: add RPMH_REGULATOR_LEVEL_LOW_SVS_L1
firmware: qcom_scm: Move qcom_scm.h to include/linux/firmware/qcom/
MAINTAINERS: Update qcom CPR maintainer entry
dt-bindings: firmware: document Qualcomm SM8550 SCM
dt-bindings: firmware: qcom,scm: add qcom,scm-sa8775p compatible
soc: qcom: socinfo: Add Soc IDs for IPQ8064 and variants
dt-bindings: arm: qcom,ids: Add Soc IDs for IPQ8064 and variants
soc: qcom: socinfo: Add support for new field in revision 17
soc: qcom: smd-rpm: Add IPQ9574 compatible
soc: qcom: pmic_glink: remove redundant calculation of svid
soc: qcom: stats: Populate all subsystem debugfs files
dt-bindings: soc: qcom,rpmh-rsc: Update to allow for generic nodes
soc: qcom: pmic_glink: add CONFIG_NET/CONFIG_OF dependencies
soc: qcom: pmic_glink: Introduce altmode support
soc: qcom: pmic_glink: Introduce base PMIC GLINK driver
dt-bindings: soc: qcom: Introduce PMIC GLINK binding
soc: qcom: dcc: Drop driver for now
Link: https://lore.kernel.org/r/20230210182242.2023901-1-andersson@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Move include/linux/qcom_scm.h to include/linux/firmware/qcom/qcom_scm.h.
This removes 1 of a few remaining Qualcomm-specific headers into a more
approciate subdirectory under include/.
Suggested-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Elliot Berman <quic_eberman@quicinc.com>
Reviewed-by: Guru Das Srinagesh <quic_gurus@quicinc.com>
Acked-by: Mukesh Ojha <quic_mojha@quicinc.com>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230203210956.3580811-1-quic_eberman@quicinc.com
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git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu
Pull m68knommu updates from Greg Ungerer:
- spelling fixes
* tag 'm68knommu-for-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
m68k: nommu: Fix misspellings of "DragonEngine"
m68k: nommu: Fix misspellings of "uCdimm"
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Exys produced the "DragonEngine II" board.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Greg Ungerer <gerg@linux-m68k.org>
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Arcturus Networks produced the "uCsimm" and "uCdimm" modules.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Greg Ungerer <gerg@linux-m68k.org>
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Pull csky update from Guo Ren:
- Optimize delay accuracy
* tag 'csky-for-linus-6.3' of https://github.com/c-sky/csky-linux:
csky: delay: Add function alignment
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Specify 8 bytes alignment for the function __delay or we get bad
delay like udelay(10) will be 25us in fact.
Signed-off-by: Jialu Xu <xujialu@vimux.org>
Signed-off-by: Guo Ren <guoren@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild updates from Masahiro Yamada:
- Change V=1 option to print both short log and full command log
- Allow V=1 and V=2 to be combined as V=12
- Make W=1 detect wrong .gitignore files
- Tree-wide cleanups for unused command line arguments passed to Clang
- Stop using -Qunused-arguments with Clang
- Make scripts/setlocalversion handle only correct release tags instead
of any arbitrary annotated tag
- Create Debian and RPM source packages without cleaning the source
tree
- Various cleanups for packaging
* tag 'kbuild-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (74 commits)
kbuild: rpm-pkg: remove unneeded KERNELRELEASE from modules/headers_install
docs: kbuild: remove description of KBUILD_LDS_MODULE
.gitattributes: use 'dts' diff driver for *.dtso files
kbuild: deb-pkg: improve the usability of source package
kbuild: deb-pkg: fix binary-arch and clean in debian/rules
kbuild: tar-pkg: use tar rules in scripts/Makefile.package
kbuild: make perf-tar*-src-pkg work without relying on git
kbuild: deb-pkg: switch over to source format 3.0 (quilt)
kbuild: deb-pkg: make .orig tarball a hard link if possible
kbuild: deb-pkg: hide KDEB_SOURCENAME from Makefile
kbuild: srcrpm-pkg: create source package without cleaning
kbuild: rpm-pkg: build binary packages from source rpm
kbuild: deb-pkg: create source package without cleaning
kbuild: add a tool to list files ignored by git
Documentation/llvm: add Chimera Linux, Google and Meta datacenters
setlocalversion: use only the correct release tag for git-describe
setlocalversion: clean up the construction of version output
.gitignore: ignore *.cover and *.mbx
kbuild: remove --include-dir MAKEFLAG from top Makefile
kbuild: fix trivial typo in comment
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I added $(srctree)/ to some included Makefiles in the following commits:
- 3204a7fb98a3 ("kbuild: prefix $(srctree)/ to some included Makefiles")
- d82856395505 ("kbuild: do not require sub-make for separate output tree builds")
They were a preparation for removing --include-dir flag.
I have never thought --include-dir useful. Rather, it _is_ harmful.
For example, run the following commands:
$ make -s ARCH=x86 mrproper defconfig
$ make ARCH=arm O=foo dtbs
make[1]: Entering directory '/tmp/linux/foo'
HOSTCC scripts/basic/fixdep
Error: kernelrelease not valid - run 'make prepare' to update it
UPD include/config/kernel.release
make[1]: Leaving directory '/tmp/linux/foo'
The first command configures the source tree for x86. The next command
tries to build ARM device trees in the separate foo/ directory - this
must stop because the directory foo/ has not been configured yet.
However, due to --include-dir=$(abs_srctree), the top Makefile includes
the wrong include/config/auto.conf from the source tree and continues
building. Kbuild traverses the directory tree, but of course it does
not work correctly. The Error message is also pointless - 'make prepare'
does not help at all for fixing the issue.
This commit fixes more arch Makefile, and finally removes --include-dir
from the top Makefile.
There are more breakages under drivers/, but I do not volunteer to fix
them all. I just moved --include-dir to drivers/Makefile.
With this commit, the second command will stop with a sensible message.
$ make -s ARCH=x86 mrproper defconfig
$ make ARCH=arm O=foo dtbs
make[1]: Entering directory '/tmp/linux/foo'
SYNC include/config/auto.conf.cmd
***
*** The source tree is not clean, please run 'make ARCH=arm mrproper'
*** in /tmp/linux
***
make[2]: *** [../Makefile:646: outputmakefile] Error 1
/tmp/linux/Makefile:770: include/config/auto.conf.cmd: No such file or directory
make[1]: *** [/tmp/linux/Makefile:793: include/config/auto.conf.cmd] Error 2
make[1]: Leaving directory '/tmp/linux/foo'
make: *** [Makefile:226: __sub-make] Error 2
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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After commit 8d9acfce3332 ("kbuild: Stop using '-Qunused-arguments' with
clang"), the PowerPC vDSO shows the following error with clang-13 and
older when CONFIG_INIT_STACK_ALL_ZERO is enabled:
clang: error: argument unused during compilation: '-enable-trivial-auto-var-init-zero-knowing-it-will-be-removed-from-clang' [-Werror,-Wunused-command-line-argument]
clang-14 added a change to make sure this flag never triggers
-Wunused-command-line-argument, so it is fixed with newer releases. For
older releases that the kernel still supports building with, just filter
out this flag, as has been done for other flags.
Fixes: f0a42fbab447 ("powerpc/vdso: Improve linker flags")
Fixes: 8d9acfce3332 ("kbuild: Stop using '-Qunused-arguments' with clang")
Link: https://github.com/llvm/llvm-project/commit/ca6d5813d17598cd180995fb3bdfca00f364475f
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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When clang's -Qunused-arguments is dropped from KBUILD_CPPFLAGS, it
warns while building objects in the purgatory folder:
clang-16: error: argument unused during compilation: '-MD' [-Werror,-Wunused-command-line-argument]
'-MMD' is always passed to the preprocessor via c_flags, even when
KBUILD_CFLAGS is overridden in a folder, so clang complains the addition
of '-MD' will be unused. Remove '-MD' to clear up this warning, as it is
unnecessary with '-MMD'.
Additionally, '-c' is also unnecessary, remove it while in the area.
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Reviewed-by: Sven Schnelle <svens@linux.ibm.com>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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When clang's -Qunused-arguments is dropped from KBUILD_CPPFLAGS, it
points out that there is a linking phase flag added to CFLAGS, which
will only be used for compiling
clang-16: error: argument unused during compilation: '-shared' [-Werror,-Wunused-command-line-argument]
'-shared' is already present in ldflags-y so it can just be dropped.
Fixes: 2b2a25845d53 ("s390/vdso: Use $(LD) instead of $(CC) to link vDSO")
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Reviewed-by: Sven Schnelle <svens@linux.ibm.com>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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When clang's -Qunused-arguments is dropped from KBUILD_CPPFLAGS, it
warns:
clang-16: error: argument unused during compilation: '-s' [-Werror,-Wunused-command-line-argument]
The compiler's '-s' flag is a linking option (it is passed along to the
linker directly), which means it does nothing when the linker is not
invoked by the compiler. The kernel builds all .o files with '-c', which
stops the compilation pipeline before linking, so '-s' can be safely
dropped from KBUILD_AFLAGS_64.
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Reviewed-by: Sven Schnelle <svens@linux.ibm.com>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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When clang's -Qunused-arguments is dropped from KBUILD_CPPFLAGS, it
warns:
clang-16: error: argument unused during compilation: '-fno-stack-clash-protection' [-Werror,-Wunused-command-line-argument]
This warning happens because vgettimeofday-32.c gets its base CFLAGS
from the main kernel, which may contain flags that are only supported on
a 64-bit target but not a 32-bit one, which is the case here.
-fstack-clash-protection and its negation are only suppported by the
64-bit powerpc target but that flag is included in an invocation for a
32-bit powerpc target, so clang points out that while the flag is one
that it recognizes, it is not actually used by this compiler job.
To eliminate the warning, remove -fno-stack-clash-protection from
vgettimeofday-32.c's CFLAGS when using clang, as has been done for other
flags previously.
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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When clang's -Qunused-arguments is dropped from KBUILD_CPPFLAGS, there
are several warnings in the PowerPC vDSO:
clang-16: error: -Wl,-soname=linux-vdso32.so.1: 'linker' input unused [-Werror,-Wunused-command-line-argument]
clang-16: error: -Wl,--hash-style=both: 'linker' input unused [-Werror,-Wunused-command-line-argument]
clang-16: error: argument unused during compilation: '-shared' [-Werror,-Wunused-command-line-argument]
clang-16: error: argument unused during compilation: '-nostdinc' [-Werror,-Wunused-command-line-argument]
clang-16: error: argument unused during compilation: '-Wa,-maltivec' [-Werror,-Wunused-command-line-argument]
The first group of warnings point out that linker flags were being added
to all invocations of $(CC), even though they will only be used during
the final vDSO link. Move those flags to ldflags-y.
The second group of warnings are compiler or assembler flags that will
be unused during linking. Filter them out from KBUILD_CFLAGS so that
they are not used during linking.
Additionally, '-z noexecstack' was added directly to the ld_and_check
rule in commit 1d53c0192b15 ("powerpc/vdso: link with -z noexecstack")
but now that there is a common ldflags variable, it can be moved there.
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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When clang's -Qunused-arguments is dropped from KBUILD_CPPFLAGS, it
warns:
clang-16: error: argument unused during compilation: '-s' [-Werror,-Wunused-command-line-argument]
The compiler's '-s' flag is a linking option (it is passed along to the
linker directly), which means it does nothing when the linker is not
invoked by the compiler. The kernel builds all .o files with '-c', which
stops the compilation pipeline before linking, so '-s' can be safely
dropped from ASFLAGS.
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Segher Boessenkool <segher@kernel.crashing.org>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Anders Roxell <anders.roxell@linaro.org>
Acked-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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When clang's -Qunused-arguments is dropped from KBUILD_CPPFLAGS, it
points out that KBUILD_AFLAGS contains a linker flag, which will be
unused:
clang: error: -Wl,-a32: 'linker' input unused [-Werror,-Wunused-command-line-argument]
This was likely supposed to be '-Wa,-a$(BITS)'. However, this change is
unnecessary, as all supported versions of clang and gcc will pass '-a64'
or '-a32' to GNU as based on the value of '-m'; the behavior of the
latest stable release of the oldest supported major version of each
compiler is shown below and each compiler's latest release exhibits the
same behavior (GCC 12.2.0 and Clang 15.0.6).
$ powerpc64-linux-gcc --version | head -1
powerpc64-linux-gcc (GCC) 5.5.0
$ powerpc64-linux-gcc -m64 -### -x assembler-with-cpp -c -o /dev/null /dev/null &| grep 'as '
.../as -a64 -mppc64 -many -mbig -o /dev/null /tmp/cctwuBzZ.s
$ powerpc64-linux-gcc -m32 -### -x assembler-with-cpp -c -o /dev/null /dev/null &| grep 'as '
.../as -a32 -mppc -many -mbig -o /dev/null /tmp/ccaZP4mF.sg
$ clang --version | head -1
Ubuntu clang version 11.1.0-++20211011094159+1fdec59bffc1-1~exp1~20211011214622.5
$ clang --target=powerpc64-linux-gnu -fno-integrated-as -m64 -### \
-x assembler-with-cpp -c -o /dev/null /dev/null &| grep gnu-as
"/usr/bin/powerpc64-linux-gnu-as" "-a64" "-mppc64" "-many" "-o" "/dev/null" "/tmp/null-80267c.s"
$ clang --target=powerpc64-linux-gnu -fno-integrated-as -m64 -### \
-x assembler-with-cpp -c -o /dev/null /dev/null &| grep gnu-as
"/usr/bin/powerpc64-linux-gnu-as" "-a32" "-mppc" "-many" "-o" "/dev/null" "/tmp/null-ab8f8d.s"
Remove this flag altogether to avoid future issues.
Fixes: 1421dc6d4829 ("powerpc/kbuild: Use flags variables rather than overriding LD/CC/AS")
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Anders Roxell <anders.roxell@linaro.org>
Acked-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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A future change will switch as-option to use KBUILD_AFLAGS instead of
KBUILD_CFLAGS to allow clang to drop -Qunused-arguments, which may cause
issues if the flag being tested requires a flag previously added to
KBUILD_CFLAGS but not KBUILD_AFLAGS. Use cc-option for cflags additions
so that the flags are tested properly.
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Acked-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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-Wa,-msoft-float is tested with as-option, which will be a problem for
clang with an upcoming change to move as-option to use KBUILD_AFLAGS
instead of KBUILD_CFLAGS due to a lack of '-mno-abicalls' in
KBUILD_AFLAGS at the point that this check occurs; $(cflags-y) is added
to KBUILD_AFLAGS towards the end of this file.
clang: error: ignoring '-fno-PIE' option as it cannot be used with implicit usage of -mabicalls and the N64 ABI [-Werror,-Woption-ignored]
This could be resolved by switching to a cc-option check but
'$(cflags-y)' would need to be added so that '-mno-abicalls' is present
for the test. However, this check is no longer necessary, as
-msoft-float is supported by all supported assembler versions (GNU as
2.25+ and LLVM 11+). Eliminate GAS_HAS_SET_HARDFLOAT and all of its
uses, inlining SET_HARDFLOAT where necessary.
Link: https://lore.kernel.org/202209101939.bvk64Fok-lkp@intel.com/
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Acked-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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as-option tests new options using KBUILD_CFLAGS, which causes problems
when using as-option to update KBUILD_AFLAGS because many compiler
options are not valid assembler options.
This will be fixed in a follow up patch. Before doing so, move the
assembler test for -Wa,-mrelax-relocations=no from using as-option to
cc-option.
Link: https://lore.kernel.org/llvm/CAK7LNATcHt7GcXZ=jMszyH=+M_LC9Qr6yeAGRCBbE6xriLxtUQ@mail.gmail.com/
Suggested-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Tested-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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More than one year has passed since the copied *.[cS] files were
removed from arch/*/boot/compressed/.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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Commit a6de553da01c ("kbuild: Allow to combine multiple W= levels")
supported W=123 to enable all the extra warning groups.
I think a similar idea is applicable to the V= option.
V=1 echos the whole command
V=2 prints the reason for rebuilding
These are orthogonal, and can be enabled at the same time.
This commit supports V=12 to enable both of them.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Tested-by: Nicolas Schier <nicolas@fjasle.eu>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
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Some scripts increase the verbose level when V=1, but others when
not V=0.
I think the former is correct because V=2 is not a log level but
a switch to print the reason for rebuilding.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
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git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk updates from Stephen Boyd:
"We have one small patch to the clk core this time around. It fixes a
corner case with the CLK_OPS_PARENT_ENABLE flag combined with
clk_core_is_enabled() where it hangs the system. We'll simply assume
the clk is disabled if the parent is disabled and the flag is set.
Trying to turn on the parent to check the enable state of the clk runs
into system hangs at boot. We let this bake in -next for a couple
weeks to make sure there aren't any more issues because the last
attempt to fix this ran into hangs and had to be reverted.
Note: There were some more patches to the core framework around
sync_state and disabling unused clks, but I asked for that to be
reverted from the qcom PR because it isn't ready and we're still
discussing the best solution on the list.
Outside of the core clk framework, we have the usual collection of clk
driver updates and support for new SoCs (which seems to never stop).
The dirstat is dominated by Qualcomm because they added support for
quite a few SoCs this time around and also migrated quite a few of
their drivers to clk_parent_data. The other big diff is in the
Mediatek clk drivers that saw a significant rework this cycle to
similarly modernize the code, and we'll see that work continue in the
next cycle as well. Nothing really jumps out as scary here, except
that the significant churn in parent data descriptions can have typos
that go unnoticed. More details below.
Core:
- Honor CLK_OPS_PARENT_ENABLE in clk_core_is_enabled()
New Drivers:
- Add a new clk-gpr-mux clock type and use it on i.MX6Q to add ENET
ref clocks
- Support for Mediatek MT7891 SoC clks
- Support for many Qualcomm clk controllers:
- QDU1000/QRU1000 global clock controller
- SA8775P global clock controller
- SM8550 TCSR and display clock controller
- SM6350 clock controller
- MSM8996 CBF and APCS clock controllers
Updates:
- Various cleanups and improvements to Mediatek clk drivers to reduce
code size and modernize the drivers
- Support for Versa 5P49V60 clks
- Disable R-Car H3 ES1.*, as it was only available to an internal
development group and needed a lot of quirks and workarounds
- Add PWM, Compare-Match Timer (TIM), USB, SDHI, and eMMC clocks and
resets on Renesas RZ/V2M
- Add display clocks on Renesas R-Car V4H
- Add Camera Receiving Unit (CRU) clocks and resets on Renesas RZ/G2L
- Free the imx_uart_clocks even if imx_register_uart_clocks returns
early
- Get the stdout clocks count from device tree on i.MX
- Drop the clock count argument from imx_register_uart_clocks()
- Keep the uart clocks on i.MX93 for when earlycon is used
- Fix SPDX comment in i.MX6SLL clocks bindings header
- Drop some unnecessary spaces from i.MX8ULP clocks bindings header
- Add imx_obtain_fixed_of_clock() for allowing to add a clock that is
not configured via devicetree
- Fix the ENET1 gate configuration for i.MX6UL according to the
reference manual
- Add ENET refclock mux support for i.MX6UL
- Add support for USB host/device configuration on Renesas RZ/N1
- Add PLL2 programming support, and CAN-FD clocks on Renesas R-Car
V4H
- Add D1 CAN bus gates and resets for Allwinner
- Mark D1 CPUX clock as critical on Allwinner
- Reuse D1 driver for Allwinner R528/T113
- Cleanup sunxi-ng Kconfig
- Fix sunxi-ng kernel-doc issues
- Model Allwinner H3/H5 DRAM clock as fixed clock
- Use .determine_rate() instead of .round_rate() for the dualdiv,
mpll, sclk-div and cpu-dyn-div amlogic clock drivers
- DDR clocks were marked as critical in the proper clock driver for
each AT91 SoC such that drivers/memory/atmel-sdramc.c to be deleted
in the next releases as it only does clock enablement
- Patch to avoid compiling dt-compat.o for all AT91 SoCs as only some
of them may use it
- Support synchronous power_off requests in the qcom GDSC driver for
proper GPU power collapse
- Drop test clocks from various Qualcomm clk drivers
- Update parent references to use clk_parent_data/clk_hw in various
Qualcomm clk drivers
- Fixes for the Qualcomm MSM8996 CPU clock controller
- Transition Qualcomm MSM8974 GCC off the externally defined
sleep_clk
- Add GDSCs in the global clock controller for Qualcomm QCS404
- The SDCC core clocks on Qualcomm SM6115 are moved to floor_ops
- Programming of clk_dis_wait for GPU CX GDSC on Qualcomm SC7180 and
SDM845 are moved to use the recently introduced properties in the
GDSC struct
- Qualcomm's RPMh clock driver gains SM8550 and SA8775P clocks, and
the IPA clock is added on a variety of platforms
- De-duplicate identical clks in Qualcomm SMD RPM clk driver
- Add a few missing clocks across msm8998, msm8992, msm8916, qcs404
to Qualcomm SDM RPM clk driver
- Various Qualcomm clk drivers use devm_pm_runtime_enable() to
simplify"
* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (228 commits)
clk: qcom: apcs-msm8986: Include bitfield.h for FIELD_PREP
clk: qcom: Revert sync_state based clk_disable_unused
clk: imx: pll14xx: fix recalc_rate for negative kdiv
clk: rs9: Drop unused pin_xin field
MAINTAINERS: clk: imx: Add Peng Fan as reviewer
clk: sprd: Add dependency for SPRD_UMS512_CLK
clk: ralink: fix 'mt7621_gate_is_enabled()' function
clk: mediatek: clk-mtk: Remove unneeded semicolon
dt-bindings: clock: remove stih416 bindings
dt-bindings: clock: add loongson-2 clock
dt-bindings: clock: add loongson-2 clock include file
clk: imx: fix compile testing imxrt1050
clk: Honor CLK_OPS_PARENT_ENABLE in clk_core_is_enabled()
clk: imx: set imx_clk_gpr_mux_ops storage-class-specifier to static
clk: renesas: rcar-gen3: Disable R-Car H3 ES1.*
dt-bindings: clock: Merge qcom,gpucc-sm8350 into qcom,gpucc.yaml
clk: qcom: gpucc-sdm845: fix clk_dis_wait being programmed for CX GDSC
clk: qcom: gpucc-sc7180: fix clk_dis_wait being programmed for CX GDSC
dt-bindings: clock: qcom,sa8775p-gcc: add the power-domains property
clk: qcom: cpu-8996: add missing cputype include
...
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Some addresses were 7-hex-digits long. Fix that.
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221230135044.287874-1-konrad.dybcio@linaro.org
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git://git.kernel.org/pub/scm/linux/kernel/git/mattst88/alpha
Pull alpha updates from Al Viro:
"Mostly small janitorial fixes but there's also more important ones: a
patch to fix loading large modules from Edward Humes, and some fixes
from Al Viro"
[ The fixes from Al mostly came in separately through Al's trees too and
are now duplicated.. - Linus ]
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mattst88/alpha:
alpha: in_irq() cleanup
alpha: lazy FPU switching
alpha/boot/misc: trim unused declarations
alpha/boot/tools/objstrip: fix the check for ELF header
alpha/boot: fix the breakage from -isystem series...
alpha: fix FEN fault handling
alpha: Avoid comma separated statements
alpha: fixed a typo in core_cia.c
alpha: remove unused __SLOW_DOWN_IO and SLOW_DOWN_IO definitions
alpha: update config files
alpha: fix R_ALPHA_LITERAL reloc for large modules
alpha: Add some spaces to ensure format specification
alpha: replace NR_SYSCALLS by NR_syscalls
alpha: Remove redundant local asm header redirections
alpha: Implement "current_stack_pointer"
alpha: remove redundant err variable
alpha: osf_sys: reduce kernel log spamming on invalid osf_mount call typenr
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Replace the obsolete and ambiguos macro in_irq() with new
macro in_hardirq().
Signed-off-by: Changbin Du <changbin.du@gmail.com>
Signed-off-by: Matt Turner <mattst88@gmail.com>
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