The conversion to using the modernized generic GPIO chip API was
incomplete without also converting the direct calls to write/read_reg()
callbacks. Use the provided wrappers from linux/gpio/generic.h.
Fixes: 38d98a822c ("gpio: xgene-sb: use new generic GPIO chip API")
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20250910-gpio-mmio-gpio-conv-part4-v2-6-f3d1a4c57124@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
This driver uses its own raw spinlock in interrupt routines while the
generic GPIO chip callbacks use a separate one. This is, of course, racy
so use the fact that the lock in generic GPIO chip is also a raw
spinlock and convert the interrupt handling functions in this module to
using the provided generic GPIO chip locking API.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20250910-gpio-mmio-gpio-conv-part4-v2-5-f3d1a4c57124@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
While these flags are private within drivers/gpio/, when looking at the
code, it's not really clear they are GPIO-specific. Since these are GPIO
descriptor flags, prepend their names with a common "GPIOD" prefix.
While at it: update the flags' docs: make spelling consistent, correct
outdated information, etc.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20250909-rename-gpio-flags-v1-1-bda208a40856@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Currently the error check from the call to platform_get_irq is always
false because an unsigned int chip->irq.parents[i] is being used to
to perform the less than zero error check. Fix this by using the int
variable ret to perform the check.
Fixes: 03c146cb6c ("gpio: loongson-64bit: Add support for Loongson-2K0300 SoC")
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Reviewed-by: Huacai Chen <chenhuacai@loongson.cn>
Reviewed-by: Yao Zi <ziyao@disroot.org>
Link: https://lore.kernel.org/r/20250909190356.870000-1-colin.i.king@gmail.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Remove unnecessary semicolons reported by Coccinelle/coccicheck and the
semantic patch at scripts/coccinelle/misc/semicolon.cocci.
Signed-off-by: Chen Ni <nichen@iscas.ac.cn>
Link: https://lore.kernel.org/r/20250909065913.4011133-1-nichen@iscas.ac.cn
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Use devm_mutex_init() instead of hand-writing it.
This saves some LoC, improves readability and saves some space in the
generated .o file.
Before:
======
text data bss dec hex filename
8431 1808 192 10431 28bf drivers/gpio/gpio-pisosr.o
After:
=====
text data bss dec hex filename
8112 1736 192 10040 2738 drivers/gpio/gpio-pisosr.o
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Andrew Davis <afd@ti.com>
Link: https://lore.kernel.org/r/01910ebdaba7d8d0cdc4ac60eb70da8e29cb85f1.1757251512.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
This controller's input and output logic is similar to previous
generations of SoCs. Additionally, it's capable of interrupt masking,
and could be configured to detect levels and edges, and is supplied with
a distinct reset signal.
The interrupt functionality is implemented through an irqchip, whose
operations are written with previous generation SoCs in mind and could
be reused. Since all Loongson SoCs with similar interrupt capability
(LS2K1500, LS2K2000) support byte-control mode, these operations are for
byte-control mode only for simplicity.
Signed-off-by: Yao Zi <ziyao@disroot.org>
Reviewed-by: Huacai Chen <chenhuacai@loongson.cn>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20250904013438.2405-3-ziyao@disroot.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Loongson-2K0300 ships a GPIO controller whose input/output control logic
is similar to previous generation of SoCs. Additionally, it acts as an
interrupt-controller supporting both level and edge interrupts and has a
distinct reset signal.
Describe its compatible in devicetree. We enlarge the maximum value of
ngpios to 128, since the controller technically supports at most 128
pins, although only 106 are routed out of the package. Properties for
interrupt-controllers and resets are introduced and limited as LS2K0300
only.
Signed-off-by: Yao Zi <ziyao@disroot.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Huacai Chen <chenhuacai@loongson.cn>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20250904013438.2405-2-ziyao@disroot.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Update help description with supported ICs from gpio-pca953x.c
Include missing IC names.
Signed-off-by: Akhilesh Patil <akhilesh@ee.iitb.ac.in>
Link: https://lore.kernel.org/r/aLmtOWjAWPtWe/gH@bhairav-test.ee.iitb.ac.in
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
to the while() loop in __iter_div_u64_rem(), when the AUX-clock
is enabled.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'timers-urgent-2025-09-07' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fix from Ingo Molnar:
"Fix a severe slowdown regression in the timer vDSO code related to the
while() loop in __iter_div_u64_rem(), when the AUX-clock is enabled"
* tag 'timers-urgent-2025-09-07' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
vdso/vsyscall: Avoid slow division loop in auxiliary clock update
- An LTO fix for clang when building with CONFIG_CMODEL_MEDLOW
- A fix for ACPI CPPC CSR read/write return values
- Several fixes for incorrect access widths in thread_info.cpu reads
- A fix for an issue in __put_user_nocheck() that was causing the glibc
tst-socket-timestamp test to fail
- A fix to initialize struct kexec_buf records in several kexec-related
functions, which were generating UBSAN warnings
- Two fixes for sparse warnings
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Merge tag 'riscv-for-linus-6.17-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Paul Walmsley:
- LTO fix for clang when building with CONFIG_CMODEL_MEDLOW
- Fix for ACPI CPPC CSR read/write return values
- Several fixes for incorrect access widths in thread_info.cpu reads
- Fix an issue in __put_user_nocheck() that was causing the glibc
tst-socket-timestamp test to fail
- Initialize struct kexec_buf records in several kexec-related
functions, which were generating UBSAN warnings
- Two fixes for sparse warnings
* tag 'riscv-for-linus-6.17-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: Fix sparse warning about different address spaces
riscv: Fix sparse warning in __get_user_error()
riscv: kexec: Initialize kexec_buf struct
riscv: use lw when reading int cpu in asm_per_cpu
riscv, bpf: use lw when reading int cpu in bpf_get_smp_processor_id
riscv, bpf: use lw when reading int cpu in BPF_MOV64_PERCPU_REG
riscv: uaccess: fix __put_user_nocheck for unaligned accesses
riscv: use lw when reading int cpu in new_vmalloc_check
ACPI: RISC-V: Fix FFH_CPPC_CSR error handling
riscv: Only allow LTO with CMODEL_MEDANY
Toolchain and infrastructure:
- Two changes to prepare for the future Rust 1.91.0 release (expected
2025-10-30, currently in nightly): a target specification format
change and a renamed, soon-to-be-stabilized 'core' function.
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Merge tag 'rust-fixes-6.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux
Pull rust fixes from Miguel Ojeda:
- Two changes to prepare for the future Rust 1.91.0 release (expected
2025-10-30, currently in nightly): a target specification format
change and a renamed, soon-to-be-stabilized 'core' function.
* tag 'rust-fixes-6.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux:
rust: support Rust >= 1.91.0 target spec
rust: use the new name Location::file_as_c_str() in Rust >= 1.91.0
- i801: fix device IDs
- in rtl9300:
- fix channel number check in probe
- check data length boundaries in xfer
- drop unsupported SMBus quick operation
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Merge tag 'i2c-host-fixes-6.17-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux into i2c/for-current
i2c-host-fixes for v6.17-rc5
- i801: fix device IDs
- in rtl9300:
- fix channel number check in probe
- check data length boundaries in xfer
- drop unsupported SMBus quick operation
This series contains fixes for use-after-free resulted in segfaults
after merging the bpf tree. Also a couple of build and test fixes.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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Merge tag 'perf-tools-fixes-for-v6.17-2025-09-05' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools
Pull perf tools fixes from Namhyung Kim:
"Fixes for use-after-free that resulted in segfaults after merging the
bpf tree.
Also a couple of build and test fixes"
* tag 'perf-tools-fixes-for-v6.17-2025-09-05' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools:
perf symbol-elf: Add support for the block argument for libbfd
perf test: Checking BPF metadata collection fails on version string
perf tests: Fix "PE file support" test build
perf bpf-utils: Harden get_bpf_prog_info_linear
perf bpf-utils: Constify bpil_array_desc
perf bpf-event: Fix use-after-free in synthesis
We did not propagate the __user attribute of the pointers in
__get_kernel_nofault() and __put_kernel_nofault(), which results in
sparse complaining:
>> mm/maccess.c:41:17: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void const [noderef] __user *from @@ got unsigned long long [usertype] * @@
mm/maccess.c:41:17: sparse: expected void const [noderef] __user *from
mm/maccess.c:41:17: sparse: got unsigned long long [usertype] *
So fix this by correctly casting those pointers.
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202508161713.RWu30Lv1-lkp@intel.com/
Suggested-by: Al Viro <viro@zeniv.linux.org.uk>
Fixes: f6bff7827a ("riscv: uaccess: use 'asm_goto_output' for get_user()")
Cc: stable@vger.kernel.org
Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Reviewed-by: Cyril Bur <cyrilbur@tenstorrent.com>
Link: https://lore.kernel.org/r/20250903-dev-alex-sparse_warnings_v1-v1-2-7e6350beb700@rivosinc.com
Signed-off-by: Paul Walmsley <pjw@kernel.org>
The kexec_buf structure was previously declared without initialization.
commit bf454ec31a ("kexec_file: allow to place kexec_buf randomly")
added a field that is always read but not consistently populated by all
architectures. This un-initialized field will contain garbage.
This is also triggering a UBSAN warning when the uninitialized data was
accessed:
------------[ cut here ]------------
UBSAN: invalid-load in ./include/linux/kexec.h:210:10
load of value 252 is not a valid value for type '_Bool'
Zero-initializing kexec_buf at declaration ensures all fields are
cleanly set, preventing future instances of uninitialized memory being
used.
Fixes: bf454ec31a ("kexec_file: allow to place kexec_buf randomly")
Signed-off-by: Breno Leitao <leitao@debian.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20250827-kbuf_all-v1-2-1df9882bb01a@debian.org
Signed-off-by: Paul Walmsley <pjw@kernel.org>
REG_L is wrong, because thread_info.cpu is 32-bit, not xlen-bit wide.
The struct currently has a hole after cpu, so little endian accesses
seemed fine.
Fixes: be97d0db5f ("riscv: VMAP_STACK overflow detection thread-safe")
Cc: stable@vger.kernel.org
Reviewed-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Signed-off-by: Radim Krčmář <rkrcmar@ventanamicro.com>
Link: https://lore.kernel.org/r/20250725165410.2896641-5-rkrcmar@ventanamicro.com
Signed-off-by: Paul Walmsley <pjw@kernel.org>
emit_ld is wrong, because thread_info.cpu is 32-bit, not xlen-bit wide.
The struct currently has a hole after cpu, so little endian accesses
seemed fine.
Fixes: 2ddec2c80b ("riscv, bpf: inline bpf_get_smp_processor_id()")
Cc: stable@vger.kernel.org
Signed-off-by: Radim Krčmář <rkrcmar@ventanamicro.com>
Reviewed-by: Pu Lehui <pulehui@huawei.com>
Link: https://lore.kernel.org/r/20250812090256.757273-4-rkrcmar@ventanamicro.com
Signed-off-by: Paul Walmsley <pjw@kernel.org>
emit_ld is wrong, because thread_info.cpu is 32-bit, not xlen-bit wide.
The struct currently has a hole after cpu, so little endian accesses
seemed fine.
Fixes: 19c56d4e5b ("riscv, bpf: add internal-only MOV instruction to resolve per-CPU addrs")
Cc: stable@vger.kernel.org
Signed-off-by: Radim Krčmář <rkrcmar@ventanamicro.com>
Reviewed-by: Pu Lehui <pulehui@huawei.com>
Acked-by: Björn Töpel <bjorn@kernel.org>
Tested-by: Björn Töpel <bjorn@rivosinc.com> # QEMU
Reviewed-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Link: https://lore.kernel.org/r/20250812090256.757273-3-rkrcmar@ventanamicro.com
Signed-off-by: Paul Walmsley <pjw@kernel.org>
The type of the value to write should be determined by the size of the
destination, not by the value itself, which may be a constant. This
aligns the behavior with x86_64, where __typeof__(*(__gu_ptr)) is used
to infer the correct type.
This fixes an issue in put_cmsg, which was only writing 4 out of 8
bytes to the cmsg_len field, causing the glibc tst-socket-timestamp test
to fail.
Fixes: ca1a66cdd6 ("riscv: uaccess: do not do misaligned accesses in get/put_user()")
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20250724220853.1969954-1-aurelien@aurel32.net
Signed-off-by: Paul Walmsley <pjw@kernel.org>
REG_L is wrong, because thread_info.cpu is 32-bit, not xlen-bit wide.
The struct currently has a hole after cpu, so little endian accesses
seemed fine.
Fixes: 503638e0ba ("riscv: Stop emitting preventive sfence.vma for new vmalloc mappings")
Cc: stable@vger.kernel.org
Reviewed-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Signed-off-by: Radim Krčmář <rkrcmar@ventanamicro.com>
Link: https://lore.kernel.org/r/20250725165410.2896641-4-rkrcmar@ventanamicro.com
Signed-off-by: Paul Walmsley <pjw@kernel.org>
Obvious driver patch plus update to sr to add back rotational media
flag since CDROMS are rotational.
Signed-off-by: James E.J. Bottomley <James.Bottomley@HansenPartnership.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Obvious driver patch plus update to sr to add back rotational media
flag since CDROMS are rotational"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: sr: Reinstate rotational media flag
scsi: lpfc: Fix buffer free/clear order in deferred receive path
The largest batch of fixes here is a series of fixes for the Freescale
LPSPI driver which James Clark pulled out of their BSP while looking at
support for the NXP S32G version of the controller. The majority of
this turned out to be bug fixes that affect existing systems with the
actual S32G support being just a small quirk that would be unremarkable
by itself, the whole series has had a good amount of testing and review
and the individual patches are all pretty straightforward by themselves.
We also have a few other driver specific fixes, including a relatively
large but simple one for the Cadence QuadSPI driver.
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Merge tag 'spi-fix-v6.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"The largest batch of fixes here is a series of fixes for the Freescale
LPSPI driver which James Clark pulled out of their BSP while looking
at support for the NXP S32G version of the controller.
The majority of this turned out to be bug fixes that affect existing
systems with the actual S32G support being just a small quirk that
would be unremarkable by itself, the whole series has had a good
amount of testing and review and the individual patches are all pretty
straightforward by themselves.
We also have a few other driver specific fixes, including a relatively
large but simple one for the Cadence QuadSPI driver"
* tag 'spi-fix-v6.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: spi-qpic-snand: unregister ECC engine on probe error and device remove
spi: cadence-quadspi: Implement refcount to handle unbind during busy
spi: spi-fsl-lpspi: Add compatible for S32G
spi: spi-fsl-lpspi: Parameterize reading num-cs from hardware
spi: spi-fsl-lpspi: Treat prescale_max == 0 as no erratum
spi: spi-fsl-lpspi: Constify devtype datas
dt-bindings: lpspi: Document support for S32G
spi: spi-fsl-lpspi: Clear status register after disabling the module
spi: spi-fsl-lpspi: Reset FIFO and disable module on transfer abort
spi: spi-fsl-lpspi: Set correct chip-select polarity bit
spi: spi-fsl-lpspi: Fix transmissions when using CONT
spi: microchip-core-qspi: stop checking viability of op->max_freq in supports_op callback
- Incorrect __BITS_PER_LONG as 64 when compiling the compat vDSO
- Unreachable PLT for ftrace_caller() in a module's .init.text
following past reworking of the module VA range selection
- Memory leak in the ACPI iort_rmr_alloc_sids() after a failed
krealloc_array()
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:
- Incorrect __BITS_PER_LONG as 64 when compiling the compat vDSO
- Unreachable PLT for ftrace_caller() in a module's .init.text
following past reworking of the module VA range selection
- Memory leak in the ACPI iort_rmr_alloc_sids() after a failed
krealloc_array()
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: ftrace: fix unreachable PLT for ftrace_caller in init_module with CONFIG_DYNAMIC_FTRACE
ACPI/IORT: Fix memory leak in iort_rmr_alloc_sids()
arm64: uapi: Provide correct __BITS_PER_LONG for the compat vDSO
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Merge tag 'audit-pr-20250905' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit
Pull audit fix from Paul Moore:
"A single small audit patch to fix a potential out-of-bounds read
caused by a negative array index when comparing paths"
* tag 'audit-pr-20250905' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit:
audit: fix out-of-bounds read in audit_compare_dname_path()
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Merge tag '6.17-RC4-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull smb client fixes from Steve French:
- Fix two potential NULL pointer references
- Two debugging improvements (to help debug recent issues) a new
tracepoint, and minor improvement to DebugData
- Trivial comment cleanup
* tag '6.17-RC4-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
cifs: prevent NULL pointer dereference in UTF16 conversion
smb: client: show negotiated cipher in DebugData
smb: client: add new tracepoint to trace lease break notification
smb: client: fix spellings in comments
smb: client: Fix NULL pointer dereference in cifs_debug_dirs_proc_show()
