Add IIO device for gyroscope sensor
with data polling interface and FIFO parsing.
Attributes: raw, scale, sampling_frequency, calibbias.
Temperature is available as a processed channel.
Signed-off-by: Remi Buisson <remi.buisson@tdk.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Remi Buisson [Tue, 7 Oct 2025 07:20:03 +0000 (07:20 +0000)]
iio: imu: inv_icm45600: add new inv_icm45600 driver
Core component of a new driver for InvenSense ICM-45600 devices.
It includes registers definition, main probe/setup, and device
utility functions.
ICM-456xx devices are latest generation of 6-axis IMU,
gyroscope+accelerometer and temperature sensor. This device
includes a 8K FIFO, supports I2C/I3C/SPI, and provides
intelligent motion features like pedometer, tilt detection,
and tap detection.
Signed-off-by: Remi Buisson <remi.buisson@tdk.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Remi Buisson [Tue, 7 Oct 2025 07:20:02 +0000 (07:20 +0000)]
dt-bindings: iio: imu: Add inv_icm45600
Document the ICM-45600 devices devicetree bindings.
Specific variants of the device are defined because of their
differences in terms of FSR or advanced features like eDMP.
The DPS310 is a barometric pressure and temperature sensor with
an I2C interface. Remove it from trivial-devices.yaml and add its
own documentation to allow for consumers of this device such as
the iio/hwmon bridge.
Signed-off-by: Eddie James <eajames@linux.ibm.com> Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Petre Rodan [Sun, 5 Oct 2025 13:12:24 +0000 (16:12 +0300)]
iio: accel: bma220: add i2c watchdog feature
Sometimes the sensor gets stuck and enters a condition in which it pulls
SDA low, thus making the entire i2c bus unusable.
This problem is mitigated by activating a 1ms watchdog implemented in
the sensor.
Signed-off-by: Petre Rodan <petre.rodan@subdimension.ro> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Petre Rodan [Sun, 5 Oct 2025 13:12:16 +0000 (16:12 +0300)]
iio: accel: bma220: split original driver
In preparation for the i2c module, move the original code into multiple
source files without any other functional change.
Create the additional bma220_core module which currently is not
providing an abstracted bus type (this will change with the regmap
patch).
Fix a few includes in the context of this patch.
Signed-off-by: Petre Rodan <petre.rodan@subdimension.ro> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cosmin Tanislav [Sun, 5 Oct 2025 11:13:18 +0000 (14:13 +0300)]
iio: adc: add RZ/T2H / RZ/N2H ADC driver
Add support for the A/D 12-Bit successive approximation converters found
in the Renesas RZ/T2H (R9A09G077) and RZ/N2H (R9A09G087) SoCs.
RZ/T2H has two ADCs with 4 channels and one with 6.
RZ/N2H has two ADCs with 4 channels and one with 15.
Conversions can be performed in single or continuous mode. Result of the
conversion is stored in a 16-bit data register corresponding to each
channel.
The conversions can be started by a software trigger, a synchronous
trigger (from MTU or from ELC) or an asynchronous external trigger (from
ADTRGn# pin).
Only single mode with software trigger is supported for now.
Signed-off-by: Cosmin Tanislav <cosmin-gabriel.tanislav.xa@renesas.com> Reviewed-by: Nuno Sá <nuno.sa@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Nuno Sá [Tue, 30 Sep 2025 15:33:12 +0000 (16:33 +0100)]
iio: adc: mcp3564: replace sprintf() with sysfs_emit()
Update the mcp3564_read_label() function to use sysfs_emit() for
generating labels.
Signed-off-by: Nuno Sá <nuno.sa@analog.com> Reviewed-by: Marius Cristea <marius.cristea@microchip.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
When the device is in ACTIVE mode the temperature and pressure measurements
are collected with a frequency determined by the ST[3:0] bits of CTRL_REG2
register.
Reviewed-by: Nuno Sá <nuno.sa@analog.com> Signed-off-by: Antoni Pokusinski <apokusinski01@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
dt-bindings: iio: pressure: add binding for mpl3115
MPL3115 is an I2C pressure and temperature sensor. It features 2
interrupt lines which can be configured to indicate events such as data
ready or pressure/temperature threshold reached.
Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Antoni Pokusinski <apokusinski01@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Change the allocation strategy of the 8 SETUP registers from a least-
recently-used (LRU) to a first-come-first-served basis.
The AD7124 chips can have up to 16 channels enabled at a time in the
sequencer for buffered reads, but only have 8 SETUP configurations
(namely the OFFSET, GAIN, CONFIG and FILTER registers) that must be
shared among the 16 channels. This means some of the channels must use
the exact same configuration parameters so that they can share a single
SETUP group of registers. The previous LRU strategy did not keep track
of how many different configurations were requested at the same time,
so if there were more than 8 different configurations requested, some
channels would end up using the incorrect configuration because the slot
assigned to them would also be assigned to a different configuration
that wrote over it later.
Adding such tracking to solve this would make an already complex
algorithm even more complex. Instead we can replace it with a simpler
first-come-first-serve strategy. This makes it easy to track how many
different configurations are being requested at the same time. This
comes at the expense of slightly longer setup times for buffered reads
since all setup registers must be written each time when a buffered read
is enabled. But this is generally not considered a hot path where
performance is critical, so should be acceptable.
This new strategy also makes hardware debugging easier since SETUPs are
now assigned in a deterministic manner and in a logical order.
Signed-off-by: David Lechner <dlechner@baylibre.com> Reviewed-by: Nuno Sá <nuno.sa@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
David Lechner [Tue, 23 Sep 2025 20:33:18 +0000 (15:33 -0500)]
iio: adc: ad7124: add ext attributes to temperature channel
Use the same .ext_info for the temperature channel as for the voltage
channels. In the ADC, these all go though a mux to select the source
and otherwise operate the same.
These attributes probably won't be used much, but since it is trivial
to add this, we might as well include them.
Signed-off-by: David Lechner <dlechner@baylibre.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cross-references to iio_tools.rst (IIO Interfacing Tools) and
iio_devbuf.rst (Industrial IIO device buffers) are shown in inline
code instead. Convert them to proper cross-references.
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com> Reviewed-by: Randy Dunlap <rdunlap@infradead.org> Tested-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Add ABI documentation for accelerometer event-related sysfs attributes
exposed by the bmi270 driver. These include threshold, period, and
enable controls for adaptive magnitude (any-motion) and rate of change
(no-motion) event detection.
Signed-off-by: Gustavo Silva <gustavograzs@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Any-motion event can be enabled on a per-axis basis and triggers a
combined event when motion is detected on any axis.
No-motion event is triggered if the rate of change on all axes falls
below a specified threshold for a configurable duration. A fake channel
is used to report this event.
Threshold and duration can be configured from userspace.
Signed-off-by: Gustavo Silva <gustavograzs@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
David Lechner [Tue, 16 Sep 2025 21:02:57 +0000 (16:02 -0500)]
iio: buffer: document that buffer callback must be context safe
Document that the callback registered with iio_channel_get_all_cb()
must be safe to call from any context since it is called from by
iio_push_to_buffer() which can be called in any context.
Signed-off-by: David Lechner <dlechner@baylibre.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
David Lechner [Tue, 16 Sep 2025 21:02:56 +0000 (16:02 -0500)]
iio: buffer: document store_to() callback may be called in any context
Document that the struct iio_buffer_access_funcs.store_to() callback
must be safe to call from any context since it is called from
iio_push_to_buffer() which may be called from any context.
Signed-off-by: David Lechner <dlechner@baylibre.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Call might_sleep() in iio_push_to_buffers_with_ts_unaligned() since it
can allocate memory, which may sleep.
Suggested-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: David Lechner <dlechner@baylibre.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
David Lechner [Tue, 16 Sep 2025 21:02:51 +0000 (16:02 -0500)]
iio: buffer: document iio_push_to_buffers_with_ts_unaligned() may sleep
Add Context: documentation comment that
iio_push_to_buffers_with_ts_unaligned() may sleep because it calls
devm_krealloc().
Also document Return: value while here.
Suggested-by: Andy Shevchenko <andy.shevchenko@gmail.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: David Lechner <dlechner@baylibre.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
David Lechner [Tue, 16 Sep 2025 21:39:39 +0000 (16:39 -0500)]
iio: adc: ad7124: remove __ad7124_set_channel()
Remove __ad7124_set_channel() wrapper function. This just added an
unnecessary layer of indirection with an extra call to container_of().
Signed-off-by: David Lechner <dlechner@baylibre.com> Reviewed-by: Nuno Sá <nuno.sa@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
David Lechner [Wed, 17 Sep 2025 14:17:23 +0000 (09:17 -0500)]
iio: adc: ad7124: use AD7124_MAX_CHANNELS
Use AD7124_MAX_CHANNELS macro instead of hardcoding 16 in
ad7124_disable_all(). We already have the macro, so we should use it.
Signed-off-by: David Lechner <dlechner@baylibre.com> Reviewed-by: Nuno Sá <nuno.sa@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
David Lechner [Wed, 17 Sep 2025 20:39:23 +0000 (15:39 -0500)]
iio: adc: ad7124: remove unused `nr` field
Remove the unused `nr` field from the `ad7124_channel` struct. There
are no more users of this field (it is only assigned to but never read)
so can be removed.
Signed-off-by: David Lechner <dlechner@baylibre.com> Reviewed-by: Nuno Sá <nuno.sa@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
David Lechner [Wed, 17 Sep 2025 20:39:22 +0000 (15:39 -0500)]
iio: adc: ad7124: inline ad7124_enable_channel()
Inline ad7124_enable_channel() at the only call site. This simplifies
the code by avoiding a bit of extra indirection.
ch->nr is replaced by address as that is the same value and avoids more
indirection.
Signed-off-by: David Lechner <dlechner@baylibre.com> Reviewed-by: Nuno Sá <nuno.sa@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
David Lechner [Wed, 17 Sep 2025 23:03:17 +0000 (18:03 -0500)]
iio: adc: ad7124: add debugfs to disable single cycle mode
Add a boolean debugfs attribute to allow disabling the SINGLE_CYCLE
bit in the FILTER registers.
This causes data to be read on every conversion instead of doing the
usual 3 or 4 conversions per sample (depending on the filter). This is
only needed for very specific use cases, such as validating the
performance of the ADC. So we just expose this feature through debugfs
for the rare cases where it is needed by people who really know what
they are doing.
Signed-off-by: David Lechner <dlechner@baylibre.com> Reviewed-by: Nuno Sá <nuno.sa@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Linus Torvalds [Sun, 12 Oct 2025 20:27:56 +0000 (13:27 -0700)]
Merge tag 'i2c-for-6.18-rc1-hotfix' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fix from Wolfram Sang:
"One revert because of a regression in the I2C core which has sadly not
showed up during its time in -next"
* tag 'i2c-for-6.18-rc1-hotfix' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
Revert "i2c: boardinfo: Annotate code used in init phase only"
Linus Torvalds [Sun, 12 Oct 2025 15:45:52 +0000 (08:45 -0700)]
Merge tag 'irq_urgent_for_v6.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Borislav Petkov:
- Skip interrupt ID 0 in sifive-plic during suspend/resume because
ID 0 is reserved and accessing reserved register space could result
in undefined behavior
- Fix a function's retval check in aspeed-scu-ic
* tag 'irq_urgent_for_v6.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/sifive-plic: Avoid interrupt ID 0 handling during suspend/resume
irqchip/aspeed-scu-ic: Fix an IS_ERR() vs NULL check
Linus Torvalds [Sat, 11 Oct 2025 23:06:04 +0000 (16:06 -0700)]
Merge tag 'trace-v6.18-3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing fixes from Steven Rostedt:
"The previous fix to trace_marker required updating trace_marker_raw as
well. The difference between trace_marker_raw from trace_marker is
that the raw version is for applications to write binary structures
directly into the ring buffer instead of writing ASCII strings. This
is for applications that will read the raw data from the ring buffer
and get the data structures directly. It's a bit quicker than using
the ASCII version.
Unfortunately, it appears that our test suite has several tests that
test writes to the trace_marker file, but lacks any tests to the
trace_marker_raw file (this needs to be remedied). Two issues came
about the update to the trace_marker_raw file that syzbot found:
- Fix tracing_mark_raw_write() to use per CPU buffer
The fix to use the per CPU buffer to copy from user space was
needed for both the trace_maker and trace_maker_raw file.
The fix for reading from user space into per CPU buffers properly
fixed the trace_marker write function, but the trace_marker_raw
file wasn't fixed properly. The user space data was correctly
written into the per CPU buffer, but the code that wrote into the
ring buffer still used the user space pointer and not the per CPU
buffer that had the user space data already written.
- Stop the fortify string warning from writing into trace_marker_raw
After converting the copy_from_user_nofault() into a memcpy(),
another issue appeared. As writes to the trace_marker_raw expects
binary data, the first entry is a 4 byte identifier. The entry
structure is defined as:
struct {
struct trace_entry ent;
int id;
char buf[];
};
The size of this structure is reserved on the ring buffer with:
size = sizeof(*entry) + cnt;
Then it is copied from the buffer into the ring buffer with:
memcpy(&entry->id, buf, cnt);
This use to be a copy_from_user_nofault(), but now converting it to
a memcpy() triggers the fortify-string code, and causes a warning.
The allocated space is actually more than what is copied, as the
cnt used also includes the entry->id portion. Allocating
sizeof(*entry) plus cnt is actually allocating 4 bytes more than
what is needed.
* tag 'trace-v6.18-3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
tracing: Stop fortify-string from warning in tracing_mark_raw_write()
tracing: Fix tracing_mark_raw_write() to use buf and not ubuf
Linus Torvalds [Sat, 11 Oct 2025 22:47:12 +0000 (15:47 -0700)]
Merge tag 'kbuild-fixes-6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux
Pull Kbuild fixes from Nathan Chancellor:
- Fix UAPI types check in headers_check.pl
- Only enable -Werror for hostprogs with CONFIG_WERROR / W=e
- Ignore fsync() error when output of gen_init_cpio is a pipe
- Several little build fixes for recent modules.builtin.modinfo series
* tag 'kbuild-fixes-6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux:
kbuild: Use '--strip-unneeded-symbol' for removing module device table symbols
s390/vmlinux.lds.S: Move .vmlinux.info to end of allocatable sections
kbuild: Add '.rel.*' strip pattern for vmlinux
kbuild: Restore pattern to avoid stripping .rela.dyn from vmlinux
gen_init_cpio: Ignore fsync() returning EINVAL on pipes
scripts/Makefile.extrawarn: Respect CONFIG_WERROR / W=e for hostprogs
kbuild: uapi: Strip comments before size type check
Reported-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com> Closes: https://lore.kernel.org/r/29ec0082-4dd4-4120-acd2-44b35b4b9487@oss.qualcomm.com Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Linus Torvalds [Sat, 11 Oct 2025 18:56:47 +0000 (11:56 -0700)]
Merge tag 'rtc-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux
Pull RTC updates from Alexandre Belloni:
"This cycle, we have a new RTC driver, for the SpacemiT P1. The optee
driver gets alarm support. We also get a fix for a race condition that
was fairly rare unless while stress testing the alarms.
Subsystem:
- Fix race when setting alarm
- Ensure alarm irq is enabled when UIE is enabled
- remove unneeded 'fast_io' parameter in regmap_config
New driver:
- SpacemiT P1 RTC
Drivers:
- efi: Remove wakeup functionality
- optee: add alarms support
- s3c: Drop support for S3C2410
- zynqmp: Restore alarm functionality after kexec transition"
* tag 'rtc-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (29 commits)
rtc: interface: Ensure alarm irq is enabled when UIE is enabled
rtc: tps6586x: Fix initial enable_irq/disable_irq balance
rtc: cpcap: Fix initial enable_irq/disable_irq balance
rtc: isl12022: Fix initial enable_irq/disable_irq balance
rtc: interface: Fix long-standing race when setting alarm
rtc: pcf2127: fix watchdog interrupt mask on pcf2131
rtc: zynqmp: Restore alarm functionality after kexec transition
rtc: amlogic-a4: Optimize global variables
rtc: sd2405al: Add I2C address.
rtc: Kconfig: move symbols to proper section
rtc: optee: make optee_rtc_pm_ops static
rtc: optee: Fix error code in optee_rtc_read_alarm()
rtc: optee: fix error code in probe()
dt-bindings: rtc: Convert apm,xgene-rtc to DT schema
rtc: spacemit: support the SpacemiT P1 RTC
rtc: optee: add alarm related rtc ops to optee rtc driver
rtc: optee: remove unnecessary memory operations
rtc: optee: fix memory leak on driver removal
rtc: x1205: Fix Xicor X1205 vendor prefix
dt-bindings: rtc: Fix Xicor X1205 vendor prefix
...
Linus Torvalds [Sat, 11 Oct 2025 18:49:00 +0000 (11:49 -0700)]
Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Fixes only in drivers (ufs, mvsas, qla2xxx, target) that came in just
before or during the merge window.
The most important one is the qla2xxx which reverts a conversion to
fix flexible array member warnings, that went up in this merge window
but which turned out on further testing to be causing data corruption"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: ufs: core: Include UTP error in INT_FATAL_ERRORS
scsi: ufs: sysfs: Make HID attributes visible
scsi: mvsas: Fix use-after-free bugs in mvs_work_queue
scsi: ufs: core: Fix PM QoS mutex initialization
scsi: ufs: core: Fix runtime suspend error deadlock
Revert "scsi: qla2xxx: Fix memcpy() field-spanning write issue"
scsi: target: target_core_configfs: Add length check to avoid buffer overflow
Linus Torvalds [Sat, 11 Oct 2025 18:19:16 +0000 (11:19 -0700)]
Merge tag 'x86_core_for_v6.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull more x86 updates from Borislav Petkov:
- Remove a bunch of asm implementing condition flags testing in KVM's
emulator in favor of int3_emulate_jcc() which is written in C
- Replace KVM fastops with C-based stubs which avoids problems with the
fastop infra related to latter not adhering to the C ABI due to their
special calling convention and, more importantly, bypassing compiler
control-flow integrity checking because they're written in asm
- Remove wrongly used static branches and other ugliness accumulated
over time in hyperv's hypercall implementation with a proper static
function call to the correct hypervisor call variant
- Add some fixes and modifications to allow running FRED-enabled
kernels in KVM even on non-FRED hardware
- Add kCFI improvements like validating indirect calls and prepare for
enabling kCFI with GCC. Add cmdline params documentation and other
code cleanups
- Use the single-byte 0xd6 insn as the official #UD single-byte
undefined opcode instruction as agreed upon by both x86 vendors
- Other smaller cleanups and touchups all over the place
* tag 'x86_core_for_v6.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (24 commits)
x86,retpoline: Optimize patch_retpoline()
x86,ibt: Use UDB instead of 0xEA
x86/cfi: Remove __noinitretpoline and __noretpoline
x86/cfi: Add "debug" option to "cfi=" bootparam
x86/cfi: Standardize on common "CFI:" prefix for CFI reports
x86/cfi: Document the "cfi=" bootparam options
x86/traps: Clarify KCFI instruction layout
compiler_types.h: Move __nocfi out of compiler-specific header
objtool: Validate kCFI calls
x86/fred: KVM: VMX: Always use FRED for IRQs when CONFIG_X86_FRED=y
x86/fred: Play nice with invoking asm_fred_entry_from_kvm() on non-FRED hardware
x86/fred: Install system vector handlers even if FRED isn't fully enabled
x86/hyperv: Use direct call to hypercall-page
x86/hyperv: Clean up hv_do_hypercall()
KVM: x86: Remove fastops
KVM: x86: Convert em_salc() to C
KVM: x86: Introduce EM_ASM_3WCL
KVM: x86: Introduce EM_ASM_1SRC2
KVM: x86: Introduce EM_ASM_2CL
KVM: x86: Introduce EM_ASM_2W
...
Linus Torvalds [Sat, 11 Oct 2025 17:51:14 +0000 (10:51 -0700)]
Merge tag 'x86_cleanups_for_v6.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 cleanups from Borislav Petkov:
- Simplify inline asm flag output operands now that the minimum
compiler version supports the =@ccCOND syntax
- Remove a bunch of AS_* Kconfig symbols which detect assembler support
for various instruction mnemonics now that the minimum assembler
version supports them all
- The usual cleanups all over the place
* tag 'x86_cleanups_for_v6.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/asm: Remove code depending on __GCC_ASM_FLAG_OUTPUTS__
x86/sgx: Use ENCLS mnemonic in <kernel/cpu/sgx/encls.h>
x86/mtrr: Remove license boilerplate text with bad FSF address
x86/asm: Use RDPKRU and WRPKRU mnemonics in <asm/special_insns.h>
x86/idle: Use MONITORX and MWAITX mnemonics in <asm/mwait.h>
x86/entry/fred: Push __KERNEL_CS directly
x86/kconfig: Remove CONFIG_AS_AVX512
crypto: x86 - Remove CONFIG_AS_VPCLMULQDQ
crypto: X86 - Remove CONFIG_AS_VAES
crypto: x86 - Remove CONFIG_AS_GFNI
x86/kconfig: Drop unused and needless config X86_64_SMP
Linus Torvalds [Sat, 11 Oct 2025 17:40:24 +0000 (10:40 -0700)]
Merge tag 'slab-for-6.18-rc1-hotfix' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab
Pull slab fix from Vlastimil Babka:
"A NULL pointer deref hotfix"
* tag 'slab-for-6.18-rc1-hotfix' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab:
slab: fix barn NULL pointer dereference on memoryless nodes
- Fix metadata_dst leak in __bpf_redirect_neigh_v{4,6}() (Daniel
Borkmann)
- Fix undefined behavior in {get,put}_unaligned_be32() (Eric Biggers)
- Use correct context to unpin bpf hash map with special types (KaFai
Wan)
* tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
selftests/bpf: Add test for unpinning htab with internal timer struct
bpf: Avoid RCU context warning when unpinning htab with internal structs
xsk: Harden userspace-supplied xdp_desc validation
bpf: Fix metadata_dst leak __bpf_redirect_neigh_v{4,6}
libbpf: Fix undefined behavior in {get,put}_unaligned_be32()
bpf: Finish constification of 1st parameter of bpf_d_path()
Linus Torvalds [Sat, 11 Oct 2025 17:27:52 +0000 (10:27 -0700)]
Merge tag 'mm-nonmm-stable-2025-10-10-15-03' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull more updates from Andrew Morton:
"Just one series here - Mike Rappoport has taught KEXEC handover to
preserve vmalloc allocations across handover"
* tag 'mm-nonmm-stable-2025-10-10-15-03' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
lib/test_kho: use kho_preserve_vmalloc instead of storing addresses in fdt
kho: add support for preserving vmalloc allocations
kho: replace kho_preserve_phys() with kho_preserve_pages()
kho: check if kho is finalized in __kho_preserve_order()
MAINTAINERS, .mailmap: update Umang's email address
Linus Torvalds [Sat, 11 Oct 2025 17:14:55 +0000 (10:14 -0700)]
Merge tag 'mm-hotfixes-stable-2025-10-10-15-00' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc fixes from Andrew Morton:
"7 hotfixes. All 7 are cc:stable and all 7 are for MM.
All singletons, please see the changelogs for details"
* tag 'mm-hotfixes-stable-2025-10-10-15-00' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
mm: hugetlb: avoid soft lockup when mprotect to large memory area
fsnotify: pass correct offset to fsnotify_mmap_perm()
mm/ksm: fix flag-dropping behavior in ksm_madvise
mm/damon/vaddr: do not repeat pte_offset_map_lock() until success
mm/rmap: fix soft-dirty and uffd-wp bit loss when remapping zero-filled mTHP subpage to shared zeropage
mm/thp: fix MTE tag mismatch when replacing zero-filled subpages
memcg: skip cgroup_file_notify if spinning is not allowed
This is because fortify string sees that the size of entry->id is only 4
bytes, but it is writing more than that. But this is OK as the
dynamic_array is allocated to handle that copy.
The size allocated on the ring buffer was actually a bit too big:
size = sizeof(*entry) + cnt;
But cnt includes the 'id' and the buffer data, so adding cnt to the size
of *entry actually allocates too much on the ring buffer.
Vlastimil Babka [Sat, 11 Oct 2025 08:45:41 +0000 (10:45 +0200)]
slab: fix barn NULL pointer dereference on memoryless nodes
Phil reported a boot failure once sheaves become used in commits 59faa4da7cd4 ("maple_tree: use percpu sheaves for maple_node_cache") and 3accabda4da1 ("mm, vma: use percpu sheaves for vm_area_struct cache"):
Linus decoded the stacktrace to get_barn() and get_node() and determined
that kmem_cache->node[numa_mem_id()] is NULL.
The problem is due to a wrong assumption that memoryless nodes only
exist on systems with CONFIG_HAVE_MEMORYLESS_NODES, where numa_mem_id()
points to the nearest node that has memory. SLUB has been allocating its
kmem_cache_node structures only on nodes with memory and so it does with
struct node_barn.
For kmem_cache_node, get_partial_node() checks if get_node() result is
not NULL, which I assumed was for protection from a bogus node id passed
to kmalloc_node() but apparently it's also for systems where
numa_mem_id() (used when no specific node is given) might return a
memoryless node.
Fix the sheaves code the same way by checking the result of get_node()
and bailing out if it's NULL. Note that cpus on such memoryless nodes
will have degraded sheaves performance, which can be improved later,
preferably by making numa_mem_id() work properly on such systems.
Steven Rostedt [Sat, 11 Oct 2025 03:51:42 +0000 (23:51 -0400)]
tracing: Fix tracing_mark_raw_write() to use buf and not ubuf
The fix to use a per CPU buffer to read user space tested only the writes
to trace_marker. But it appears that the selftests are missing tests to
the trace_maker_raw file. The trace_maker_raw file is used by applications
that writes data structures and not strings into the file, and the tools
read the raw ring buffer to process the structures it writes.
The fix that reads the per CPU buffers passes the new per CPU buffer to
the trace_marker file writes, but the update to the trace_marker_raw write
read the data from user space into the per CPU buffer, but then still used
then passed the user space address to the function that records the data.
Pass in the per CPU buffer and not the user space address.
TODO: Add a test to better test trace_marker_raw.
Cc: stable@vger.kernel.org Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: Andrew Morton <akpm@linux-foundation.org> Link: https://lore.kernel.org/20251011035243.386098147@kernel.org Fixes: 64cf7d058a00 ("tracing: Have trace_marker use per-cpu data to read user space") Reported-by: syzbot+9a2ede1643175f350105@syzkaller.appspotmail.com Closes: https://lore.kernel.org/all/68e973f5.050a0220.1186a4.0010.GAE@google.com/ Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
kbuild: Use '--strip-unneeded-symbol' for removing module device table symbols
After commit 5ab23c7923a1 ("modpost: Create modalias for builtin
modules"), relocatable RISC-V kernels with CONFIG_KASAN=y start failing
when attempting to strip the module device table symbols:
riscv64-linux-objcopy: not stripping symbol `__mod_device_table__kmod_irq_starfive_jh8100_intc__of__starfive_intc_irqchip_match_table' because it is named in a relocation
make[4]: *** [scripts/Makefile.vmlinux:97: vmlinux] Error 1
The relocation appears to come from .LASANLOC5 in .data.rel.local:
This section appears to come from GCC for including additional
information about global variables that may be protected by KASAN.
There appears to be no way to opt out of the generation of these symbols
through either a flag or attribute. Attempting to remove '.LASANLOC*'
with '--strip-symbol' results in the same error as above because these
symbols may refer to (thus have relocation between) each other.
Avoid this build breakage by switching to '--strip-unneeded-symbol' for
removing __mod_device_table__ symbols, as it will only remove the symbol
when there is no relocation pointing to it. While this may result in a
little more bloat in the symbol table in certain configurations, it is
not as bad as outright build failures.
Fixes: 5ab23c7923a1 ("modpost: Create modalias for builtin modules") Reported-by: Charles Mirabile <cmirabil@redhat.com> Closes: https://lore.kernel.org/20251007011637.2512413-1-cmirabil@redhat.com/ Suggested-by: Alexey Gladkov <legion@kernel.org> Tested-by: Nicolas Schier <nsc@kernel.org> Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Linus Torvalds [Fri, 10 Oct 2025 21:06:02 +0000 (14:06 -0700)]
Merge tag 'for-6.18/hpfs-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull hpfs updates from Mikulas Patocka:
- Avoid -Wflex-array-member-not-at-end warnings
- Replace simple_strtoul with kstrtoint
- Fix error code for new_inode() failure
* tag 'for-6.18/hpfs-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
fs/hpfs: Fix error code for new_inode() failure in mkdir/create/mknod/symlink
hpfs: Replace simple_strtoul with kstrtoint in hpfs_parse_param
fs: hpfs: Avoid multiple -Wflex-array-member-not-at-end warnings
amdkfd:
- Fix kfd process ref leak
- mmap write lock handling fix
- Fix comments in IOCTL
xe:
- Fix build with clang 16
- Fix handling of invalid configfs syntax usage and spell out the
expected syntax in the documentation
- Do not try late bind firmware when running as VF since it shouldn't
handle firmware loading
- Fix idle assertion for local BOs
- Fix uninitialized variable for late binding
- Do not require perfmon_capable to expose free memory at page
granularity. Handle it like other drm drivers do
- Fix lock handling on suspend error path
- Fix I2C controller resume after S3
v3d:
- fix fence locking"
* tag 'drm-next-2025-10-11-1' of https://gitlab.freedesktop.org/drm/kernel: (34 commits)
drm/amd/display: Incorrect Mirror Cositing
drm/amd/display: Enable Dynamic DTBCLK Switch
drm/amdgpu: Report individual reset error
drm/amdgpu: partially revert "revert to old status lock handling v3"
drm/amd/display: Fix unsafe uses of kernel mode FPU
drm/amd/pm: Disable VCN queue reset on SMU v13.0.6 due to regression
drm/amdgpu: Fix general protection fault in amdgpu_vm_bo_reset_state_machine
drm/amdgpu: Check swus/ds for switch state save
drm/amdkfd: Fix two comments in kfd_ioctl.h
drm/amd/pm: Avoid interface mismatch messaging
drm/amdgpu: Merge amdgpu_vm_set_pasid into amdgpu_vm_init
drm/amd/amdgpu: Fix the mes version that support inv_tlbs
drm/amd: Check whether secure display TA loaded successfully
drm/amdkfd: Fix mmap write lock not release
drm/amdkfd: Fix kfd process ref leaking when userptr unmapping
drm/amdgpu: Fix for GPU reset being blocked by KIQ I/O.
drm/amd/display: Disable scaling on DCE6 for now
drm/amd/display: Properly disable scaling on DCE6
drm/amd/display: Properly clear SCL_*_FILTER_CONTROL on DCE6
drm/amd/display: Add missing DCE6 SCL_HORZ_FILTER_INIT* SRIs
...
Linus Torvalds [Fri, 10 Oct 2025 20:59:38 +0000 (13:59 -0700)]
Merge tag 'drm-fixes-2025-10-11' of https://gitlab.freedesktop.org/drm/kernel
Pull drm fixes from Dave Airlie:
"Some fixes leftover from our fixes branch, just nouveau and vmwgfx:
nouveau:
- Return errno code from TTM move helper
vmwgfx:
- Fix null-ptr access in cursor code
- Fix UAF in validation
- Use correct iterator in validation"
* tag 'drm-fixes-2025-10-11' of https://gitlab.freedesktop.org/drm/kernel:
drm/nouveau: fix bad ret code in nouveau_bo_move_prep
drm/vmwgfx: Fix copy-paste typo in validation
drm/vmwgfx: Fix Use-after-free in validation
drm/vmwgfx: Fix a null-ptr access in the cursor snooper
Allow additional properties to enable devices attached to the bus.
Fixes warnings like these:
arch/arm/boot/dts/renesas/sh73a0-kzm9g.dtb: bus@fec10000 (renesas,bsc-sh73a0): Unevaluated properties are not allowed ('ethernet@10000000' was unexpected)
arch/arm/boot/dts/renesas/r8a73a4-ape6evm.dtb: bus@fec10000 (renesas,bsc-r8a73a4): Unevaluated properties are not allowed ('ethernet@8000000', 'flash@0' were unexpected)
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Node names are already and properly checked by the core schema. No need
to do it again.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
[robh: Also drop [A-F] in unit address] Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Linus Torvalds [Fri, 10 Oct 2025 18:30:19 +0000 (11:30 -0700)]
Merge tag 'ceph-for-6.18-rc1' of https://github.com/ceph/ceph-client
Pull ceph updates from Ilya Dryomov:
- some messenger improvements (Eric and Max)
- address an issue (also affected userspace) of incorrect permissions
being granted to users who have access to multiple different CephFS
instances within the same cluster (Kotresh)
- a bunch of assorted CephFS fixes (Slava)
* tag 'ceph-for-6.18-rc1' of https://github.com/ceph/ceph-client:
ceph: add bug tracking system info to MAINTAINERS
ceph: fix multifs mds auth caps issue
ceph: cleanup in ceph_alloc_readdir_reply_buffer()
ceph: fix potential NULL dereference issue in ceph_fill_trace()
libceph: add empty check to ceph_con_get_out_msg()
libceph: pass the message pointer instead of loading con->out_msg
libceph: make ceph_con_get_out_msg() return the message pointer
ceph: fix potential race condition on operations with CEPH_I_ODIRECT flag
ceph: refactor wake_up_bit() pattern of calling
ceph: fix potential race condition in ceph_ioctl_lazyio()
ceph: fix overflowed constant issue in ceph_do_objects_copy()
ceph: fix wrong sizeof argument issue in register_session()
ceph: add checking of wait_for_completion_killable() return value
ceph: make ceph_start_io_*() killable
libceph: Use HMAC-SHA256 library instead of crypto_shash
Linus Torvalds [Fri, 10 Oct 2025 18:23:57 +0000 (11:23 -0700)]
Merge tag 'v6.18-rc-part2-smb-client-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull more smb client updates from Steve French:
- fix i_size in fallocate
- two truncate fixes
- utime fix
- minor cleanups
- SMB1 fixes
- improve error check in read
- improve perf of copy file_range (copy_chunk)
* tag 'v6.18-rc-part2-smb-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
cifs: update internal version number
cifs: Add comments for DeletePending assignments in open functions
cifs: Add fallback code path for cifs_mkdir_setinfo()
cifs: Allow fallback code in smb_set_file_info() also for directories
cifs: Query EA $LXMOD in cifs_query_path_info() for WSL reparse points
smb: client: remove cfids_invalidation_worker
smb: client: remove redudant assignment in cifs_strict_fsync()
smb: client: fix race with fallocate(2) and AIO+DIO
smb: client: fix missing timestamp updates after utime(2)
smb: client: fix missing timestamp updates after ftruncate(2)
smb: client: fix missing timestamp updates with O_TRUNC
cifs: Fix copy_to_iter return value check
smb: client: batch SRV_COPYCHUNK entries to cut round trips
smb: client: Omit an if branch in smb2_find_smb_tcon()
smb: client: Return directly after a failed genlmsg_new() in cifs_swn_send_register_message()
smb: client: Use common code in cifs_do_create()
smb: client: Improve unlocking of a mutex in cifs_get_swn_reg()
smb: client: Return a status code only as a constant in cifs_spnego_key_instantiate()
smb: client: Use common code in cifs_lookup()
smb: client: Reduce the scopes for a few variables in two functions
Linus Torvalds [Fri, 10 Oct 2025 18:20:19 +0000 (11:20 -0700)]
Merge tag 'xtensa-20251010' of https://github.com/jcmvbkbc/linux-xtensa
Pull Xtensa updates from Max Filippov:
- minor cleanups
* tag 'xtensa-20251010' of https://github.com/jcmvbkbc/linux-xtensa:
xtensa: use HZ_PER_MHZ in platform_calibrate_ccount
xtensa: simdisk: add input size check in proc_write_simdisk
Linus Torvalds [Fri, 10 Oct 2025 17:37:13 +0000 (10:37 -0700)]
Merge tag 'block-6.18-20251009' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull block fixes from Jens Axboe:
- Don't include __GFP_NOWARN for loop worker allocation, as it already
uses GFP_NOWAIT which has __GFP_NOWARN set already
- Small series cleaning up the recent bio_iov_iter_get_pages() changes
- loop fix for leaking the backing reference file, if validation fails
- Update of a comment pertaining to disk/partition stat locking
* tag 'block-6.18-20251009' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
loop: remove redundant __GFP_NOWARN flag
block: move bio_iov_iter_get_bdev_pages to block/fops.c
iomap: open code bio_iov_iter_get_bdev_pages
block: rename bio_iov_iter_get_pages_aligned to bio_iov_iter_get_pages
block: remove bio_iov_iter_get_pages
block: Update a comment of disk statistics
loop: fix backing file reference leak on validation error
Linus Torvalds [Fri, 10 Oct 2025 17:25:24 +0000 (10:25 -0700)]
Merge tag 'io_uring-6.18-20251009' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull io_uring fixes from Jens Axboe:
- Fixup indentation in the UAPI header
- Two fixes for zcrx. One fixes receiving too much in some cases, and
the other deals with not correctly incrementing the source in the
fallback copy loop
- Fix for a race in the IORING_OP_WAITID command, where there was a
small window where the request would be left on the wait_queue_head
list even though it was being canceled/completed
- Update liburing git URL in the kernel tree
* tag 'io_uring-6.18-20251009' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
io_uring/zcrx: increment fallback loop src offset
io_uring/zcrx: fix overshooting recv limit
io_uring: use tab indentation for IORING_SEND_VECTORIZED comment
io_uring/waitid: always prune wait queue entry in io_waitid_wait()
io_uring: update liburing git URL
Merge patch series "kbuild: Fixes for fallout from recent modules.builtin.modinfo series"
This is a series to address some problems that were exposed by the
recent modules.builtin.modinfo series that landed in commit c7d3dd9163e6
("Merge patch series "Add generated modalias to
modules.builtin.modinfo"").
The third patch is not directly related to the aforementioned series, as
the warning it fixes happens prior to the series but commit 8d18ef04f940
("s390: vmlinux.lds.S: Reorder sections") from the series creates
conflicts in this area, so I included it here.
s390/vmlinux.lds.S: Move .vmlinux.info to end of allocatable sections
When building s390 defconfig with binutils older than 2.32, there are
several warnings during the final linking stage:
s390-linux-ld: .tmp_vmlinux1: warning: allocated section `.got.plt' not in segment
s390-linux-ld: .tmp_vmlinux2: warning: allocated section `.got.plt' not in segment
s390-linux-ld: vmlinux.unstripped: warning: allocated section `.got.plt' not in segment
s390-linux-objcopy: vmlinux: warning: allocated section `.got.plt' not in segment
s390-linux-objcopy: st7afZyb: warning: allocated section `.got.plt' not in segment
binutils commit afca762f598 ("S/390: Improve partial relro support for
64 bit") [1] in 2.32 changed where .got.plt is emitted, avoiding the
warning.
The :NONE in the .vmlinux.info output section description changes the
segment for subsequent allocated sections. Move .vmlinux.info right
above the discards section to place all other sections in the previously
defined segment, .data.
Prior to binutils commit c12d9fa2afe ("Support objcopy
--remove-section=.relaFOO") [1] in 2.32, stripping relocation sections
required the trailing period (i.e., '.rel.*') to work properly.
After commit 3e86e4d74c04 ("kbuild: keep .modinfo section in
vmlinux.unstripped"), there is an error with binutils 2.31.1 or earlier
because these sections are not properly removed:
s390-linux-objcopy: st6tO8Ev: symbol `.modinfo' required but not present
s390-linux-objcopy:st6tO8Ev: no symbols
Add the old pattern to resolve this issue (along with a comment to allow
cleaning this when binutils 2.32 or newer is the minimum supported
version). While the aforementioned kbuild change exposes this, the
pattern was originally changed by commit 71d815bf5dfd ("kbuild: Strip
runtime const RELA sections correctly"), where it would still be
incorrect with binutils older than 2.32.
kbuild: Restore pattern to avoid stripping .rela.dyn from vmlinux
Commit 0ce5139fd96e ("kbuild: always create intermediate
vmlinux.unstripped") removed the pattern to avoid stripping .rela.dyn
sections added by commit e9d86b8e17e7 ("scripts: Do not strip .rela.dyn
section"). Restore it so that .rela.dyn sections remain in the final
vmlinux.
projects / thirdparty / kernel / linux.git / log
