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Support creating contexts via Netlink. Setting flow hashing
fields on the new context is not supported at this stage,
it can be added later.
An empty indirection table is not supported. This is a carry
over from the IOCTL interface where empty indirection table
meant delete. We can repurpose empty indirection table in
Netlink but for now to avoid confusion reject it using the
policy.
Support letting user choose the ID for the new context. This was
not possible in IOCTL since the context ID field for the create
action had to be set to the ETH_RXFH_CONTEXT_ALLOC magic value.
Link: https://patch.msgid.link/20250717234343.2328602-7-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add a helper tcp_sock_set_maxseg() to directly set the TCP_MAXSEG
sockopt from kernel space.
This new helper will be used in the following patch from MPTCP.
Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
Acked-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20250719-net-next-mptcp-tcp_maxseg-v2-2-8c910fbc5307@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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If the decice does not support filtering, filtering
must not be used and all packets delivered for the
upper layers to sort.
Signed-off-by: Oliver Neukum <oneukum@suse.com>
Link: https://patch.msgid.link/20250717120649.2090929-1-oneukum@suse.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Currently the defrag ioctl cannot rewrite the extents without
compression. Add a new flag for that, as setting compression to 0 (or
"no compression") means to do no changes to compression so take what is
the current default, like mount options or properties.
The defrag setting overrides mount or properties. The compression
BTRFS_DEFRAG_DONT_COMPRESS is only used for in-memory operations and
does not need to have a fixed value.
Mount with zstd:9, copy test file from /usr/bin/ (about 260KB):
$ mount -o compress=zstd:9 /dev/vda /mnt
$ filefrag -vsb testfile
filefrag: -b needs a blocksize option, assuming 1024-byte blocks.
Filesystem type is: 9123683e
File size of testfile is 297704 (292 blocks of 1024 bytes)
ext: logical_offset: physical_offset: length: expected: flags:
0: 0.. 127: 13312.. 13439: 128: encoded
1: 128.. 255: 13364.. 13491: 128: 13440: encoded
2: 256.. 291: 13424.. 13459: 36: 13492: last,encoded,eof
testfile: 3 extents found
$ compsize testfile
Processed 1 file, 3 regular extents (3 refs), 0 inline, 1 fragments.
Type Perc Disk Usage Uncompressed Referenced
TOTAL 42% 124K 292K 292K
zstd 42% 124K 292K 292K
Defrag to uncompressed:
$ btrfs fi defrag --nocomp testfile
$ filefrag -vsb testfile
filefrag: -b needs a blocksize option, assuming 1024-byte blocks.
Filesystem type is: 9123683e
File size of testfile is 297704 (292 blocks of 1024 bytes)
ext: logical_offset: physical_offset: length: expected: flags:
0: 0.. 291: 291840.. 292131: 292: last,eof
testfile: 1 extent found
$ compsize testfile
Processed 1 file, 1 regular extents (1 refs), 0 inline, 1 fragments.
Type Perc Disk Usage Uncompressed Referenced
TOTAL 100% 292K 292K 292K
none 100% 292K 292K 292K
Compress again with LZO:
$ btrfs fi defrag -clzo testfile
$ filefrag -vsb testfile
filefrag: -b needs a blocksize option, assuming 1024-byte blocks.
Filesystem type is: 9123683e
File size of testfile is 297704 (292 blocks of 1024 bytes)
ext: logical_offset: physical_offset: length: expected: flags:
0: 0.. 127: 13312.. 13439: 128: encoded
1: 128.. 255: 13392.. 13519: 128: 13440: encoded
2: 256.. 291: 13480.. 13515: 36: 13520: last,encoded,eof
testfile: 3 extents found
$ compsize testfile
Processed 1 file, 3 regular extents (3 refs), 0 inline, 1 fragments.
Type Perc Disk Usage Uncompressed Referenced
TOTAL 64% 188K 292K 292K
lzo 64% 188K 292K 292K
Signed-off-by: David Sterba <dsterba@suse.com>
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The dirty_log_pages tree is used for tree logging and marks extents
based on log_transid. The bits could be renamed to resemble the
LOG1/LOG2 naming used for the BTRFS_FS_LOG1_ERR bits.
The DIRTY bit is renamed to LOG1 and NEW to LOG2.
Signed-off-by: David Sterba <dsterba@suse.com>
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Instead of using a bare atomic, use the refcount_t type, which despite
being a structure that contains only an atomic, has an API that checks
for underflows and other hazards. This doesn't change the size of the
extent_buffer structure.
This removes the need to do things like this:
WARN_ON(atomic_read(&eb->refs) == 0);
if (atomic_dec_and_test(&eb->refs)) {
(...)
}
And do just:
if (refcount_dec_and_test(&eb->refs)) {
(...)
}
Since refcount_dec_and_test() already triggers a warning when we decrement
a ref count that has a value of 0 (or below zero).
Reviewed-by: Boris Burkov <boris@bur.io>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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The power_domain_target event event is only called when CONFIG_OMAP2PLUS
is defined. As each event can take up to 5K regardless if they are used or
not, it's best not to define them when they are not used. Add #ifdef
around these events when they are not used.
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>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/20250612145408.415483176@goodmis.org
Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
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The events device_pm_callback_start and device_pm_callback_end events are
only called when CONFIG_PM_SLEEP is defined. As each event can take up to
5K regardless if they are used or not, it's best not to define them when
they are not used. Add #ifdef around these events when they are not used.
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>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/20250612145408.246703478@goodmis.org
Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
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The events psci_domain_idle_enter and psci_domain_idle_exit events are
only called when CONFIG_ARM_PSCI_CPUIDLE is defined. As each event can
take up to 5K (less for DEFINE_EVENT()) regardless if they are used or
not, it's best not to define them when they are not used. Add #ifdef
around these events when they are not used.
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>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/20250612145408.074769245@goodmis.org
Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
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As the trace event powernv_throttle is only used by the powernv code, move
it to a separate include file and have that code directly enable it.
Trace events can take up around 5K of memory when they are defined
regardless if they are used or not. It wastes memory to have them defined
in configurations where the tracepoint is not used.
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>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/20250612145407.906308844@goodmis.org
Fixes: 0306e481d479a ("cpufreq: powernv/tracing: Add powernv_throttle tracepoint")
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
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The trace event alarmtimer_suspend is only called when RTC_CLASS is
defined. As every event created can create up to 5K of text and meta data
regardless if it is called or not it should not be created and waste
memory. Hide the event when CONFIG_RTC_CLASS is not defined.
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/20250612095828.6d75dfa3@batman.local.home
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
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The event aer_event is only used when CONFIG_PCIEAER is configured. It
should not be created when it is not. When an event is created it creates
around 5K of text and meta data regardless if the tracepoint is used or
not. Instead of wasting this memory, put #ifdef around the event to not
create it when it is not used.
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Tony Luck <tony.luck@intel.com>
Link: https://lore.kernel.org/20250612094932.4a08abd6@batman.local.home
Acked-by: Borislav Petkov (AMD) <bp@alien8.de>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
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The upper layer may require the link ID to properly handle
unexpected frames. For instance, if hostapd, operating as an
AP MLD, receives a data frame from a non-associated STA,
it must send deauthentication to the link on which the STA is
operating.
Signed-off-by: Michael-CY Lee <michael-cy.lee@mediatek.com>
Reviewed-by: Money Wang <money.wang@mediatek.com>
Link: https://patch.msgid.link/20250721065159.1740992-1-michael-cy.lee@mediatek.com
[edit commit message]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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It is no longer used, remove it.
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250721091956.e964ceacd85c.Idecab8ef161fa58e000b3969bc936399284b79f0@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Commit 13423063c7cb ("arm64: kvm, smccc: Introduce and use API for
getting hypervisor UUID") replaced the explicit register constants
with the UUID_INIT macro. However, there is an endian issue, meaning
the UUID generated and used in the handshake didn't match UUID prior to
the commit.
The change in UUID causes the SMCCC vendor handshake to fail with older
guest kernels, meaning devices such as PTP were not available in the
guest.
This patch updates the parameters to the macro to generate a UUID which
matches the previous value, and re-establish backwards compatibility
with older guest kernels.
Fixes: 13423063c7cb ("arm64: kvm, smccc: Introduce and use API for getting hypervisor UUID")
Signed-off-by: Jack Thomson <jackabt@amazon.com>
Reviewed-by: Marc Zyngier <maz@kernel.org>
Tested-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Link: https://lore.kernel.org/r/20250721130558.50823-1-jackabt.amazon@gmail.com
Signed-off-by: Will Deacon <will@kernel.org>
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Qualcomm Milos SoC
Document the RPMh Network-On-Chip Interconnect of the Milos (e.g.
SM7635) SoC.
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
Link: https://lore.kernel.org/r/20250709-sm7635-icc-v3-1-c446203c3b3a@fairphone.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
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The parameter description of urb->sgt is lost, this will add it for
completeness.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Closes: https://lore.kernel.org/all/20250711182803.1d548467@canb.auug.org.au/
Signed-off-by: Xu Yang <xu.yang_2@nxp.com>
Fixes: 488e6eaab88c ("usb: core: add dma-noncoherent buffer alloc and free API")
Link: https://lore.kernel.org/r/20250721104417.3442530-1-xu.yang_2@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform drivers fixes from Ilpo Järvinen:
- power supply code:
- Add get/set property direct to allow avoiding taking
psy->extensions_sem twice from power supply extensions
- alienware-wmi-wmax:
- Add AWCC support for Alienware Area-51m and m15 R5
- Fix `dmi_system_id` array termination
- arm64: huawei-gaokun-ec: fix OF node leak
- dell-ddv: Fix taking psy->extensions_sem twice
- dell-lis3lv02d: Add Precision 3551 accelerometer support
- firmware_attributes_class: Fix initialization order
- ideapad-laptop: Retain FnLock and kbd backlight across boots
- lenovo-wmi-hotkey: Avoid triggering error -5 due to missing mute LED
- mellanox: mlxbf-pmc: Validate event names and bool input
* tag 'platform-drivers-x86-v6.16-4' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
MAINTAINERS: Update entries for IFS and SBL drivers
platform/x86: dell-lis3lv02d: Add Precision 3551
platform/x86: alieneware-wmi-wmax: Add AWCC support to more laptops
platform/x86: Fix initialization order for firmware_attributes_class
platform: arm64: huawei-gaokun-ec: fix OF node leak
lenovo-wmi-hotkey: Avoid triggering error -5 due to missing mute LED
platform/x86: ideapad-laptop: Fix kbd backlight not remembered among boots
platform/x86: ideapad-laptop: Fix FnLock not remembered among boots
platform/mellanox: mlxbf-pmc: Use kstrtobool() to check 0/1 input
platform/mellanox: mlxbf-pmc: Validate event/enable input
platform/mellanox: mlxbf-pmc: Remove newline char from event name input
platform/x86: dell-ddv: Fix taking the psy->extensions_sem lock twice
power: supply: test-power: Test access to extended power supply
power: supply: core: Add power_supply_get/set_property_direct()
platform/x86: alienware-wmi-wmax: Fix `dmi_system_id` array
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Patches from Peter Chen <peter.chen@cixtech.com>:
Cixtech P1 (internal name sky1) is high performance generic Armv9 SoC.
Orion O6 is the Arm V9 Motherboard built by Radxa. You could find brief
introduction for SoC and related boards at:
https://radxa.com/products/orion/o6#overview
Currently, to run upstream kernel at Orion O6 board, you need to
use BIOS released by Radxa, and add "clk_ignore_unused=1" at bootargs.
https://docs.radxa.com/en/orion/o6/bios/install-bios
In this series, we add initial SoC and board support for Kernel building.
Since mailbox is used for SCMI clock communication, mailbox driver is added
in this series for the minimum SoC support.
Patch 1-2: add dt-binding doc for CIX and its sky1 SoC
Patch 3: add Arm64 build support
Patch 4-5: add CIX mailbox driver which needs to support SCMI clock protocol.
Patch 6: add Arm64 defconfig support
Patch 7-8: add initial dts support for SoC and Orion O6 board
Patch 9: add MAINTAINERS entry
* newsoc/cix-p1:
MAINTAINERS: Add CIX SoC maintainer entry
arm64: dts: cix: Add sky1 base dts initial support
dt-bindings: clock: cix: Add CIX sky1 scmi clock id
arm64: defconfig: Enable CIX SoC
mailbox: add CIX mailbox driver
dt-bindings: mailbox: add cix,sky1-mbox
arm64: Kconfig: add ARCH_CIX for cix silicons
dt-bindings: arm: add CIX P1 (SKY1) SoC
dt-bindings: vendor-prefixes: Add CIX Technology Group Co., Ltd.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Add device tree bindings for the scmi clock id on
Cix sky1 platform.
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Peter Chen <peter.chen@cixtech.com>
Signed-off-by: Gary Yang <gary.yang@cixtech.com>
Signed-off-by: Peter Chen <peter.chen@cixtech.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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https://git.kernel.org/pub/scm/linux/kernel/git/atorgue/stm32 into soc/dt
STM32 DT for v6.17, round 1
Highlights:
----------
- MPU:
- STM32MP13:
-Add Ethernet MAC adress efuse support.
- STMP32MP15:
- Add stm32mp157f-DK2 board support. This board embedds the same
conectivity devices, DDR ... than stm32mp157c-dk2.
However there are two differences: STM32MP157F SoC which allows
overdrive OPP and the SCMI support for system features like
clocks and regulators.
- STM32MP25:
- Fix tick timer for low power use cases.
- Add timer support.
* tag 'stm32-dt-for-v6.17-1' of https://git.kernel.org/pub/scm/linux/kernel/git/atorgue/stm32:
arm64: dts: st: remove empty line in stm32mp251.dtsi
arm64: dts: st: fix timer used for ticks
arm64: defconfig: Enable STM32 Octo Memory Manager and OcstoSPI driver
ARM: dts: stm32: add stm32mp157f-dk2 board support
dt-bindings: arm: stm32: add STM32MP157F-DK2 board compatible
ARM: dts: stm32: optee async notif interrupt for MP15 scmi variants
ARM: dts: stm32: use internal regulators bindings for MP15 scmi variants
dt-bindings: regulator: Add STM32MP15 SCMI regulator identifiers
ARM: dts: stm32: use 'typec' generic name for stusb1600 on stm32mp15xx-dkx
ARM: dts: stm32: fullfill diversity with OPP for STM32M15xF SOCs
ARM: dts: stm32: add system-clock-direction-out on stm32mp15xx-dkx
arm64: defconfig: enable STM32 timers drivers
arm64: dts: st: add timer nodes on stm32mp257f-ev1
arm64: dts: st: add timer pins for stm32mp257f-ev1
arm64: dts: st: add timer nodes on stm32mp251
ARM: dts: stm32: Add nvmem-cells to ethernet nodes for constant mac-addresses
Link: https://lore.kernel.org/r/b3e3363b-1ea5-457c-b244-2cbe26f7d6e4@foss.st.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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https://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel into soc/dt
Renesas DTS updates for v6.17 (take two)
- Add support for the Renesas Gray Hawk Single board with R-Car
V4M-7 (R8A779H2),
- Add eMMC and microSD expansion board support for the RZ/V2H and
RZ/V2N EVK development boards,
- Add GPIO keys and Ethernet support for the RZ/G3E SoM and SMARC
Carrier-II EVK development board,
- Add QSPI FLASH support for the RZ/V2H and RZ/V2N SoCs and their EVK
development boards,
- Miscellaneous fixes and improvements.
* tag 'renesas-dts-for-v6.17-tag2' of https://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel:
arm64: dts: renesas: r9a09g057h44-rzv2h-evk: Enable serial NOR FLASH
arm64: dts: renesas: r9a09g056n48-rzv2n-evk: Enable serial NOR FLASH
arm64: dts: renesas: r9a09g057: Add XSPI node
arm64: dts: renesas: r9a09g056: Add XSPI node
arm64: dts: renesas: r9a09g056n48-rzv2n-evk: Fix pinctrl node name for GBETH1
arm64: dts: renesas: r9a09g057h44-rzv2h-evk: Fix pinctrl node name for GBETH1
arm64: dts: renesas: r8a779g3-sparrow-hawk-fan-pwm: Add missing install target
arm64: dts: renesas: rzg3e-smarc-som: Enable eth{0-1} (GBETH) interfaces
arm64: dts: renesas: r9a09g047e57-smarc: Add gpio keys
arm64: dts: renesas: Add CN15 eMMC and SD overlays for RZ/V2H and RZ/V2N EVKs
arm64: dts: renesas: r8a779h2: Add Gray Hawk Single support
arm64: dts: renesas: Add Renesas R8A779H2 SoC support
arm64: dts: renesas: Factor out Gray Hawk Single board support
dt-bindings: clock: renesas,r9a09g056/57-cpg: Add XSPI core clock
Link: https://lore.kernel.org/r/cover.1752090401.git.geert+renesas@glider.be
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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into soc/drivers
This pull request contains Broadcom SoCs drivers updates for 6.17,
please pull the following:
- Andrea adds the RP1 clock, pinctrl/pinconf/gpio and misc driver to
bind them all
* tag 'arm-soc/for-6.17/drivers' of https://github.com/Broadcom/stblinux:
pinctrl: rp1: Implement RaspberryPi RP1 pinmux/pinconf support
misc: rp1: RaspberryPi RP1 misc driver
pinctrl: rp1: Implement RaspberryPi RP1 gpio support
clk: rp1: Add support for clocks provided by RP1
dt-bindings: clock: Add RaspberryPi RP1 clock bindings
Link: https://lore.kernel.org/r/20250630190216.1518354-4-florian.fainelli@broadcom.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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We need the tty/serial fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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soc/drivers
Reset controller updates for v6.17
* Support reset controllers on Kendryte K230 and SOPHGO CV1800B.
* Add RZ/V2N USB2PHY reset controller bindings
* Use auxiliary device creation helpers in reset-mpfs.
* Convert nxp,lcp1850-rgu and snps,dw-reset binding docs to DT schema.
* Enable reset-brcmstb(-rescal) on BCM2712.
* Fix a typo in the T-HEAD TH1520 Kconfig option
* tag 'reset-for-v6.17' of https://git.pengutronix.de/git/pza/linux:
dt-bindings: reset: Convert snps,dw-reset to DT schema
reset: brcmstb: Enable reset drivers for ARCH_BCM2835
reset: simple: add support for Sophgo CV1800B
dt-bindings: reset: sophgo: Add CV1800B support
reset: mpfs: use the auxiliary device creation
dt-bindings: reset: renesas,rzv2h-usb2phy: Document RZ/V2N SoC support
dt-bindings: reset: convert nxp,lpc1850-rgu.txt to yaml format
reset: thead: Fix TH1520 typo
reset: canaan: add reset driver for Kendryte K230
dt-bindings: reset: add support for canaan,k230-rst
Link: https://lore.kernel.org/r/20250710152513.1346298-1-p.zabel@pengutronix.de
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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https://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into soc/drivers
Arm SCMI updates for v6.17
1. A fix is introduced to correct turbo frequency marking for 64-bit
devices with sustained frequencies over 4GHz, ensuring accurate turbo
frequency identification.
2. Debug capabilities are being improved by introducing in-flight transfer
tracking using debug counters, which help diagnose transfer congestion
and behavior. Additional tracepoints are added to log in-flight counts
at transfer begin and end, offering better runtime insight. The debug
counters now support decrement operations using a newly added
scmi_dec_count helper, making counter tracking symmetric and more robust.
3. A race condition in suspend-resume logic is being resolved by ensuring
SCMI_SYSPOWER_IDLE state is set early during resume, improving suspend
reliability under certain conditions. New suspend and resume operations
are added to the scmi_bus_type to enable finer power management control
for SCMI-based devices.
4. Finally enhancements are also made to avoid registering notifiers for
events that a platform does not support, reducing unnecessary overhead
by checking for unsupported event types during protocolinitialization.
* tag 'scmi-updates-6.17' of https://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux:
firmware: arm_scmi: Convert to SYSTEM_SLEEP_PM_OPS
firmware: arm_scmi: Avoid notifier registration for unsupported events
firmware: arm_scmi: power_control: Ensure SCMI_SYSPOWER_IDLE is set early during resume
firmware: arm_scmi: Add power management operations to SCMI bus
include: trace: Add tracepoint support for inflight xfer count
firmware: arm_scmi: Track number of inflight SCMI transfers
firmware: arm_scmi: Add support for debug counter decrement
firmware: arm_scmi: Fix up turbo frequencies selection
Link: https://lore.kernel.org/r/20250709122907.1171913-1-sudeep.holla@arm.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge series from Heiko Schocher <hs@denx.de>:
This series introduces the changes needed for trivial spi
based sensors from ABB, currently operated from userspace.
|
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Merge the fixes branch into the for-next branch to resolve Makefile
conflict and include the power supply accessor work that is required
by the upcoming Uniwill driver.
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All architectures have an interruptible RCU extended quiescent state
(EQS) as part of their idle sequences, where interrupts can occur
without RCU watching. Entry code must account for this and wake RCU as
necessary; the common entry code deals with this in irqentry_enter() by
treating any interrupt from an idle thread as potentially having
occurred within an EQS and waking RCU for the duration of the interrupt
via rcu_irq_enter() .. rcu_irq_exit().
Some architectures may have other interruptible EQSs which require
similar treatment. For example, on s390 it is necessary to enable
interrupts around guest entry in the middle of a period where core KVM
code has entered an EQS.
So that architectures can wake RCU in these cases, this patch adds a
new arch_in_rcu_eqs() hook to the common entry code which is checked in
addition to the existing is_idle_thread() check, with RCU woken if
either returns true. A default implementation is provided which always
returns false, which suffices for most architectures.
As no architectures currently implement arch_in_rcu_eqs(), there should
be no functional change as a result of this patch alone. A subsequent
patch will add an s390 implementation to fix a latent bug with missing
RCU wakeups.
[ajd@linux.ibm.com: rebase, fix commit message]
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Christian Borntraeger <borntraeger@linux.ibm.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Paul E. McKenney <paulmck@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Claudio Imbrenda <imbrenda@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Signed-off-by: Andrew Donnellan <ajd@linux.ibm.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Janosch Frank <frankja@linux.ibm.com>
Link: https://lore.kernel.org/r/20250708092742.104309-2-ajd@linux.ibm.com
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Message-ID: <20250708092742.104309-2-ajd@linux.ibm.com>
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We need the USB/Thunderbolt fixes in here for other patches to be on top
of.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Add i.MX94 LVDS/DISPLAY CSR compatible string.
Add clock index for the two CSRs.
Reviewed-by: Abel Vesa <abel.vesa@linaro.org>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250707-imx95-blk-ctl-7-1-v3-1-c1b676ec13be@nxp.com
Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
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https://gitlab.freedesktop.org/agd5f/linux into drm-next
amd-drm-next-6.17-2025-07-17:
amdgpu:
- Partition fixes
- Reset fixes
- RAS fixes
- i2c fix
- MPC updates
- DSC cleanup
- EDID fixes
- Display idle D3 update
- IPS updates
- DMUB updates
- Retimer fix
- Replay fixes
- Fix DC memory leak
- Initial support for smartmux
- DCN 4.0.1 degamma LUT fix
- Per queue reset cleanups
- Track ring state associated with a fence
- SR-IOV fixes
- SMU fixes
- Per queue reset improvements for GC 9+ compute
- Per queue reset improvements for GC 10+ gfx
- Per queue reset improvements for SDMA 5+
- Per queue reset improvements for JPEG 2+
- Per queue reset improvements for VCN 2+
- GC 8 fix
- ISP updates
amdkfd:
- Enable KFD on LoongArch
radeon:
- Drop console lock during suspend/resume
UAPI:
- Add userq slot info to INFO IOCTL
Used for IGT userq validation tests (https://lists.freedesktop.org/archives/igt-dev/2025-July/093228.html)
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://lore.kernel.org/r/20250717213827.2061581-1-alexander.deucher@amd.com
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Add three new attributes to the driver data structures to support
configuration of PWM frequency, PWM polarity and PWM output config.
Signed-off-by: Florin Leotescu <florin.leotescu@nxp.com>
Link: https://lore.kernel.org/r/20250603113125.3175103-2-florin.leotescu@oss.nxp.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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https://gitlab.freedesktop.org/drm/misc/kernel into drm-next
drm-misc-next for 6.17:
UAPI Changes:
Cross-subsystem Changes:
Core Changes:
- mode_config: Change fb_create prototype to pass the drm_format_info
and avoid redundant lookups in drivers
- sched: kunit improvements, memory leak fixes, reset handling
improvements
- tests: kunit EDID update
Driver Changes:
- amdgpu: Hibernation fixes, structure lifetime fixes
- nouveau: sched improvements
- sitronix: Add Sitronix ST7567 Support
- bridge:
- Make connector available to bridge detect hook
- panel:
- More refcounting changes
- New panels: BOE NE14QDM
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <mripard@redhat.com>
Link: https://lore.kernel.org/r/20250717-efficient-kudu-of-fantasy-ff95e0@houat
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char / misc / IIO fixes from Greg KH:
"Here are some char/misc/iio and other driver fixes for 6.16-rc7.
Included in here are:
- IIO driver fixes for reported problems
- Interconnect driver fixes for reported problems
- nvmem driver fixes
- bunch of comedi driver fixes for long-term bugs
- Kconfig dependancy fixes for mux drivers
- other small driver fixes for reported problems.
All of these have been in linux-next for a while with no reported
problems"
* tag 'char-misc-6.16-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (35 commits)
nvmem: layouts: u-boot-env: remove crc32 endianness conversion
misc: amd-sbi: Explicitly clear in/out arg "mb_in_out"
misc: amd-sbi: Address copy_to/from_user() warning reported in smatch
misc: amd-sbi: Address potential integer overflow issue reported in smatch
comedi: comedi_test: Fix possible deletion of uninitialized timers
comedi: Fix initialization of data for instructions that write to subdevice
comedi: Fix use of uninitialized data in insn_rw_emulate_bits()
comedi: das6402: Fix bit shift out of bounds
comedi: aio_iiro_16: Fix bit shift out of bounds
comedi: pcl812: Fix bit shift out of bounds
comedi: das16m1: Fix bit shift out of bounds
comedi: Fix some signed shift left operations
comedi: Fail COMEDI_INSNLIST ioctl if n_insns is too large
nvmem: imx-ocotp: fix MAC address byte length
MAINTAINERS: add miscdevice Rust abstractions
mux: mmio: Fix missing CONFIG_REGMAP_MMIO
iio: dac: ad3530r: Fix incorrect masking for channels 4-7 in powerdown mode
iio: adc: ad7380: fix adi,gain-milli property parsing
iio: adc: ad7949: use spi_is_bpw_supported()
iio: accel: fxls8962af: Fix use after free in fxls8962af_fifo_flush
...
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Introduce new "cable_length" field in PFCC register and related fields
to enhance rx buffer configuration management:
1. cable_length: Shifts cable length handling to fw by storing a
manually entered length from user in PFCC.cable_length
2. lane_rate_oper: In a case where PFCC.cable_length is not supported,
helps compute a default cable length
Signed-off-by: Oren Sidi <osidi@nvidia.com>
Reviewed-by: Alex Lazar <alazar@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/1752734895-257735-4-git-send-email-tariqt@nvidia.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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Extend structure layouts and defines buf_ownership.
buf_ownership indicates whether the buffer is managed by SW or FW.
Signed-off-by: Oren Sidi <osidi@nvidia.com>
Reviewed-by: Alex Lazar <alazar@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/1752734895-257735-3-git-send-email-tariqt@nvidia.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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This adds the capabilities, ipsec_next_header and inner/outer
l4_type_ext fields to support RSS for the decrypted packets.
These fields are specifically for firmware steering. HWS validation
logic is updated to correctly handle the changes, ensuring the
unsupported fields are not set.
Besides, reserved_at_c4 is fixed to reserved_at_d4 to reflect the
accurate offset within the structure.
Signed-off-by: Jianbo Liu <jianbol@nvidia.com>
Reviewed-by: Carolina Jubran <cjubran@nvidia.com>
Reviewed-by: Dragos Tatulea <dtatulea@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/1752734895-257735-2-git-send-email-tariqt@nvidia.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs fixes from Christian Brauner:
- Fix a memory leak in fcntl_dirnotify()
- Raise SB_I_NOEXEC on secrement superblock instead of messing with
flags on the mount
- Add fsdevel and block mailing lists to uio entry. We had a few
instances were very questionable stuff was added without either block
or the VFS being aware of it
- Fix netfs copy-to-cache so that it performs collection with
ceph+fscache
- Fix netfs race between cache write completion and ALL_QUEUED being
set
- Verify the inode mode when loading entries from disk in isofs
- Avoid state_lock in iomap_set_range_uptodate()
- Fix PIDFD_INFO_COREDUMP check in PIDFD_GET_INFO ioctl
- Fix the incorrect return value in __cachefiles_write()
* tag 'vfs-6.16-rc7.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
MAINTAINERS: add block and fsdevel lists to iov_iter
netfs: Fix race between cache write completion and ALL_QUEUED being set
netfs: Fix copy-to-cache so that it performs collection with ceph+fscache
fix a leak in fcntl_dirnotify()
iomap: avoid unnecessary ifs_set_range_uptodate() with locks
isofs: Verify inode mode when loading from disk
cachefiles: Fix the incorrect return value in __cachefiles_write()
secretmem: use SB_I_NOEXEC
coredump: fix PIDFD_INFO_COREDUMP ioctl check
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ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/jic23/iio into char-misc-next
Jonathan writes:
IIO: New device support, features, late breaking fixes and cleanup for 6.17
The normal mixed bag. A few more fixes than usual as I failed to send
them out earlier.
New device support
==================
adi,ad4080
- New driver for this high speed ADC. Includes extensions to iio-backends
necessary to support filter config, variable data lands and data
alignment control.
adi,ad4170-4
- New driver for this 24-bit very feature rich ADC suited for weigh scale
and thermocouple applications.
adi,ad7405
- New driver for this single channel isolated ADC with backend support
(adi-axi-adc)
google,cros_ec_activity
- Add activity detection to the existing set of cros_ec drivers covering
both human body and significant motion detection.
mediatek,mt6359
- Add support for MT6363 and MT6373 PMIC Auxiliary ADCs.
nicera,d3-323-aa
- New driver for this configurable Passive InfraRed sensor.
Device ID only
==============
mediatek,mt7981-auxadc
- Add ID to mt2701 driver as fully compatible with mt7986-auxadc.
rohm,bu79100g
- Add ID to ad7476 driver as fully compatible with TI ADS7866.
Features
========
Core
- New in_voltageY_convdelay to allow for devices to control timing
offsets between sampling different channels.
adi,ad-sigma-delta-library
- Support SPI offload (later fix for missing Kconfig dependency)
adi,ad4851
- SPI 3-wire support.
adi,ad7606
- Power supply control.
- convdelay and calibbias support for calibration purposes.
- gain calibration support based on external filter resistance provided
from device tree.
adi,ad7768-1
- Add output regulator for VCM output, typically used for preconditioning
circuits.
- Add gpio controller for the 4 GPIOs.
- Multiple scan type support to enable 16-bit modes.
- Support synchronization over SPI.
- Filter type and oversampling ratio control.
- Low pass filter cut off read only attribute.
adi,adxl313
- FIFO support
- DC activity, inactivity detection with power-save on inactivity
- AC coupled activity detection
- Documentation for this complex driver.
- debugfs register access.
adi,adxl345
- Sampling frequency and sensor range controls.
bosch,bmi270
- Add step counter support.
invensense,icm42600
- Wake on motion support.
Cleanup and fixes
=================
backend
- Drop unused parameter from iio_backend_ovesampling_ratio_set()
docs
- Fix ABI docs around I and Q modifiers.
treewide
- Switch remaining drives to use maple tree regcache.
- Drop use of DRIVER_NAME style definitions when only used in one
place.
- Drop unused export.h includes.
- Use = { } in place of memset in various drivers.
- Constify various info structures and related.
- Switch some drivers from array of chip_info structures to individual
named structures.
adi,ad-sigma_delta library
- Fix over allocation of scan buffer. (bits/bytes confusion)
- Sort includes and apply iwyu principles to ensure sensible set.
- Use u8 instead of uint8_t
- Replace hard coded type sizes with sizeof() and BITS_TO_BYTES() as
appropriate.
- Factor out setting of read address to reduce duplication.
- Switch to buffer predisable so error handling on buffer enable
functions correctly (balanced against postenable).
adi,ad4000
- Don't use sift_right() on an unsigned value.
adi,ad7173
- Add missing check on spi_setup() succeeding.
- Simplify clock enable disable code using devm_clk_get_enabled()
- Fix channel index for syscalib_mode
- Fix number of configuration slots for some devics.
- Fix the channel used for calibration.
- Fix setting ODR up in probe.
adi,ad7380
- Drop unused oversampling_ratio getter function call as value never
used.
adi,ad7606
- Exit if invalid dt_schema encountered rather than carrying on with
unknown config.
adi,ad7768-1
- Ensure SYNC_IN pulse is long enough.
- Switch sampling_frequency_available to read_avail() callback.
adi,ada4250
- Ensuring a dma-safe buffer for regmap_bulk_read()
- Use a local dev variable to simplify code
- Relax chip ID matching to allow for fallback dt compatibles.
- Make use of devm_regulator_get_enabled_read_voltage() to replace
equivalent code.
- Shuffle elements around in struct to improve logical groupings and
reduce holes.
- Use dev_err_probe()
adi,adxl313
- Use regcache to reduce traffic.
- Factor out enabling of measurement.
adi,adxl345
- Drop irq from struct as only used locally in code
- Simplify measure enable function using regmap_update_bits()
- Replace some magic numbers by units.h defines
- Simplify interrupt mapping code
- Simplify FIFO read out.
adi,axi-dac
- Factor out code to check for bus free to reduce duplication.
avago,apds9306
- Use a helper to get register address in both get and set functions.
bosch,bmi160+bmi270
- Ensure triggers suspended and resumed correctly.
bosch,bmo055
- Fix theoretical OOB acces to hw_xlate array.
freescale,vf610
- Drop -ENOMEM error message as plenty of existing prints if memory
allocation fails.
- Use dev_err_probe() and devm_clk_geT_enabled() to simplify probe().
kionix,kx022a
- Apply include what you use principles to includes.
invensense,itg3200
- Add missing dt-binding for this gyroscope.
invensense,icm42600
- Switch from int64_t and similar to s64 and other kernel types.
- Simplify arrangement of DMA safe buffers and potentially reduce
structure size a little.
invensense,mpu6050
- Reduce duplication in aux read/write code.
- Use sysfs_emit() to replace scnprintf()
murata,irsd200
- Drop duplicate printing of ret in dev_err_probe()
nxp,lpc3220-adc
- Add missing clocks property to dt-binding.
st,spear600
- Convert dt-binding that got left behind in staging to yaml in the main
tree.
st,stm32-adc
- Use dev_fwnode() rather than directly accessing the of_node.
vti,sca3000
- Use direct returns instead of gotos where simple.
Various other minor typo and white space fixes.
* tag 'iio-for-6.17a' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (201 commits)
iio: adc: ad_sigma_delta: Select IIO_BUFFER_DMAENGINE and SPI_OFFLOAD
iio: adc: ad7173: fix setting ODR in probe
iio: adc: ad7173: fix calibration channel
iio: adc: ad7173: fix num_slots
iio: adc: ad7173: fix channels index for syscalib_mode
iio: adc: ad_sigma_delta: change to buffer predisable
iio: ABI: fix correctness of I and Q modifiers
iio: Add driver for Nicera D3-323-AA PIR sensor
dt-bindings: iio: proximity: Add Nicera D3-323-AA PIR sensor
dt-bindings: vendor-prefixes: Add Nicera
iio: dac: vf610: Simplify with devm_clk_get_enabled()
iio: adc: vf610: Simplify with dev_err_probe
iio: adc: vf610: Drop -ENOMEM error message
iio: imu: bno055: make bno055_sysfs_attr const
iio: imu: bno055: fix OOB access of hw_xlate array
dt-bindings: iio: adc: Add support for MT7981
iio: accel: kionix-kx022a: Apply approximate iwyu principles to includes
iio: adc: ad4170-4: Add support for weigh scale, thermocouple, and RTD sens
iio: adc: ad4170-4: Add support for internal temperature sensor
iio: adc: ad4170-4: Add GPIO controller support
...
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This adds the usual scoped_guard(srcu_fast, &my_srcu) and
guard(srcu_fast)(&my_srcu).
Suggested-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Neeraj Upadhyay (AMD) <neeraj.upadhyay@kernel.org>
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Commit cc34acd577f1 ("docs: net: document new locking reality")
introduced netif_ vs dev_ function semantics: the former expects locked
netdev, the latter takes care of the locking. We don't strictly
follow this semantics on either side, but there are more dev_xxx handlers
now that don't fit. Rename them to netif_xxx where appropriate.
netif_close_many is used only by vlan/dsa and one mtk driver, so move it into
NETDEV_INTERNAL namespace.
Signed-off-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20250717172333.1288349-8-sdf@fomichev.me
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
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Commit cc34acd577f1 ("docs: net: document new locking reality")
introduced netif_ vs dev_ function semantics: the former expects locked
netdev, the latter takes care of the locking. We don't strictly
follow this semantics on either side, but there are more dev_xxx handlers
now that don't fit. Rename them to netif_xxx where appropriate.
Note that one dev_set_threaded call still remains in mt76 for debugfs file.
Signed-off-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20250717172333.1288349-7-sdf@fomichev.me
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
Commit cc34acd577f1 ("docs: net: document new locking reality")
introduced netif_ vs dev_ function semantics: the former expects locked
netdev, the latter takes care of the locking. We don't strictly
follow this semantics on either side, but there are more dev_xxx handlers
now that don't fit. Rename them to netif_xxx where appropriate.
Signed-off-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20250717172333.1288349-6-sdf@fomichev.me
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
Commit cc34acd577f1 ("docs: net: document new locking reality")
introduced netif_ vs dev_ function semantics: the former expects locked
netdev, the latter takes care of the locking. We don't strictly
follow this semantics on either side, but there are more dev_xxx handlers
now that don't fit. Rename them to netif_xxx where appropriate.
__netif_set_mtu is used only by bond, so move it into
NETDEV_INTERNAL namespace.
Signed-off-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20250717172333.1288349-5-sdf@fomichev.me
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
Commit cc34acd577f1 ("docs: net: document new locking reality")
introduced netif_ vs dev_ function semantics: the former expects locked
netdev, the latter takes care of the locking. We don't strictly
follow this semantics on either side, but there are more dev_xxx handlers
now that don't fit. Rename them to netif_xxx where appropriate.
netif_pre_changeaddr_notify is used only by ipvlan/bond, so move it into
NETDEV_INTERNAL namespace.
Signed-off-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20250717172333.1288349-4-sdf@fomichev.me
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
Commit cc34acd577f1 ("docs: net: document new locking reality")
introduced netif_ vs dev_ function semantics: the former expects locked
netdev, the latter takes care of the locking. We don't strictly
follow this semantics on either side, but there are more dev_xxx handlers
now that don't fit. Rename them to netif_xxx where appropriate.
netif_get_mac_address is used only by tun/tap, so move it into
NETDEV_INTERNAL namespace.
Signed-off-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20250717172333.1288349-3-sdf@fomichev.me
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
Commit cc34acd577f1 ("docs: net: document new locking reality")
introduced netif_ vs dev_ function semantics: the former expects locked
netdev, the latter takes care of the locking. We don't strictly
follow this semantics on either side, but there are more dev_xxx handlers
now that don't fit. Rename them to netif_xxx where appropriate.
Signed-off-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20250717172333.1288349-2-sdf@fomichev.me
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add a new SKB drop reason (SKB_DROP_REASON_PFMEMALLOC) to track packets
dropped due to memory pressure. In production environments, we've observed
memory exhaustion reported by memory layer stack traces, but these drops
were not properly tracked in the SKB drop reason infrastructure.
While most network code paths now properly report pfmemalloc drops, some
protocol-specific socket implementations still use sk_filter() without
drop reason tracking:
- Bluetooth L2CAP sockets
- CAIF sockets
- IUCV sockets
- Netlink sockets
- SCTP sockets
- Unix domain sockets
These remaining cases represent less common paths and could be converted
in a follow-up patch if needed. The current implementation provides
significantly improved observability into memory pressure events in the
network stack, especially for key protocols like TCP and UDP, helping to
diagnose problems in production environments.
Reported-by: Matt Fleming <mfleming@cloudflare.com>
Signed-off-by: Jesper Dangaard Brouer <hawk@kernel.org>
Link: https://patch.msgid.link/175268316579.2407873.11634752355644843509.stgit@firesoul
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Rename the shortterm-related identifiers to wait-related.
The usage of shortterm_users refcount is now beyond its name. It is
also used for references which live longer than an ioctl execution.
E.g. vdev holds idev's shortterm_users refcount on vdev allocation,
releases it during idev's pre_destroy(). Rename the refcount as
wait_cnt, since it is always used to sync the referencing & the
destruction of the object by waiting for it to go to zero.
List all changed identifiers:
iommufd_object::shortterm_users -> iommufd_object::wait_cnt
REMOVE_WAIT_SHORTTERM -> REMOVE_WAIT
iommufd_object_dec_wait_shortterm() -> iommufd_object_dec_wait()
zerod_shortterm -> zerod_wait_cnt
No functional change intended.
Link: https://patch.msgid.link/r/20250716070349.1807226-9-yilun.xu@linux.intel.com
Suggested-by: Kevin Tian <kevin.tian@intel.com>
Suggested-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Nicolin Chen <nicolinc@nvidia.com>
Tested-by: Nicolin Chen <nicolinc@nvidia.com>
Signed-off-by: Xu Yilun <yilun.xu@linux.intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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