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Author SHA1 Message Date
Krzysztof Kozlowski
36b35ad879 Qualcomm driver fixes for v7.0
Fix the length of the PD restart reason string in pd-mapper to avoid
 QMI decoding errors, resulting in the notification being dropped.
 
 Fix the newly introduce handling of TBT/USB4 notifications in pmic_glink
 altmode driver, as it broke the handling of non-TBT/USB4 DisplayPort
 unplug events.
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Merge tag 'qcom-drivers-fixes-for-7.0' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/qcom/linux into arm/fixes

Qualcomm driver fixes for v7.0

Fix the length of the PD restart reason string in pd-mapper to avoid
QMI decoding errors, resulting in the notification being dropped.

Fix the newly introduce handling of TBT/USB4 notifications in pmic_glink
altmode driver, as it broke the handling of non-TBT/USB4 DisplayPort
unplug events.

* tag 'qcom-drivers-fixes-for-7.0' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/qcom/linux:
  soc: qcom: pmic_glink_altmode: Fix TBT->SAFE->!TBT transition
  soc: qcom: pmic_glink_altmode: Fix SVID=DP && unconnected edge case
  soc: qcom: pd-mapper: Fix element length in servreg_loc_pfr_req_ei

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2026-04-01 13:47:03 +02:00
Krzysztof Kozlowski
7962fd9375 RISC-V soc fixes for v7.0-rc6
Microchip:
 More resource leak fixes for unlikely scenarios, and a change to the
 auto-update "firmware" driver to prevent it probing on systems with
 engineering silicon where it cannot be used.
 
 Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
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Merge tag 'riscv-soc-fixes-for-v7.0-rc6' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/conor/linux into arm/fixes

RISC-V soc fixes for v7.0-rc6

Microchip:
More resource leak fixes for unlikely scenarios, and a change to the
auto-update "firmware" driver to prevent it probing on systems with
engineering silicon where it cannot be used.

Signed-off-by: Conor Dooley <conor.dooley@microchip.com>

* tag 'riscv-soc-fixes-for-v7.0-rc6' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/conor/linux:
  firmware: microchip: fail auto-update probe if no flash found
  soc: microchip: mpfs-mss-top-sysreg: Fix resource leak on driver unbind
  soc: microchip: mpfs-control-scb: Fix resource leak on driver unbind

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2026-04-01 13:42:51 +02:00
Krzysztof Kozlowski
5ac16e6593 nuvoton: first batch of arm64 devicetree changes for v7.1
Just the one change this time, dropping syscon properties where they weren't
 defined.
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Merge tag 'nuvoton-arm64-7.1-devicetree-0' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/bmc/linux into soc/dt

nuvoton: first batch of arm64 devicetree changes for v7.1

Just the one change this time, dropping syscon properties where they weren't
defined.

* tag 'nuvoton-arm64-7.1-devicetree-0' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/bmc/linux:
  arm64: dts: nuvoton: drop unused syscon property from watchdog node

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2026-04-01 13:38:29 +02:00
Krzysztof Kozlowski
08b67f170f aspeed: first batch of devicetree changes for v7.1
New platforms:
 
 - Asus Kommando IPMI card
 - Asrock Paul IPMI card
 
 Updated platforms:
 
 - Anacapa (Meta): NFC and EEPROMs
 - MSX4 (Nvidia): 128M layout for the alternate boot flash
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Merge tag 'aspeed-7.1-devicetree-0' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/bmc/linux into soc/dt

aspeed: first batch of devicetree changes for v7.1

New platforms:

- Asus Kommando IPMI card
- Asrock Paul IPMI card

Updated platforms:

- Anacapa (Meta): NFC and EEPROMs
- MSX4 (Nvidia): 128M layout for the alternate boot flash

* tag 'aspeed-7.1-devicetree-0' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/bmc/linux:
  ARM: dts: aspeed: anacapa: Add retimer EEPROMs
  ARM: dts: aspeed: anacapa: add NFC device
  ARM: dts: aspeed: Add Asrock Paul IPMI card
  dt-bindings: arm: aspeed: Add Asrock Paul IPMI card
  ARM: dts: aspeed: Add 128M alt flash layout to NVIDIA MSX4
  ARM: dts: aspeed: Add Asus Kommando IPMI card
  dt-bindings: arm: aspeed: Add Asus Kommando IPMI card

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2026-04-01 13:35:29 +02:00
Ulf Hansson
9d862ccfda pmdomain: Merge branch fixes into next
Merge the pmdomain fixes for v7.0-rc[n] into the next branch, to allow
them to get tested together with the pmdomain changes that are targeted
for the next release.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2026-04-01 13:34:40 +02:00
Ulf Hansson
cb400df122 pmdomain: Merge branch pmdomain into next
Merge the immutable branch pmdomain into next to get the changes queued and
tested for the next release. The pmdomain branch hosts minor core changes
for pmdomain.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2026-04-01 13:33:35 +02:00
Krzysztof Kozlowski
4b2b3f034a aspeed: first batch of fixes for v7.0
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Merge tag 'aspeed-7.0-fixes-0' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/bmc/linux into arm/fixes

aspeed: first batch of fixes for v7.0

* tag 'aspeed-7.0-fixes-0' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/bmc/linux:
  soc: aspeed: socinfo: Mask table entries for accurate SoC ID matching

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2026-04-01 13:29:57 +02:00
Krzysztof Kozlowski
14a891256d Reset controller fixes for v7.0, part 2
* Decouple spacemit K3 reset lines that were incorrectly coupled
   together as one, but are in fact separate resets in hardware.
 * Fix a double free in the reset_add_gpio_aux_device() error path.
   This has already been fixed on reset/next by commit a9b95ce36d
   ("reset: gpio: add a devlink between reset-gpio and its consumer").
 * Fix the MODULE_AUTHOR string in the rzg2l-usbphy-ctrl driver.
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Merge tag 'reset-fixes-for-v7.0-2' of https://git.pengutronix.de/git/pza/linux into arm/fixes

Reset controller fixes for v7.0, part 2

* Decouple spacemit K3 reset lines that were incorrectly coupled
  together as one, but are in fact separate resets in hardware.
* Fix a double free in the reset_add_gpio_aux_device() error path.
  This has already been fixed on reset/next by commit a9b95ce36d
  ("reset: gpio: add a devlink between reset-gpio and its consumer").
* Fix the MODULE_AUTHOR string in the rzg2l-usbphy-ctrl driver.

* tag 'reset-fixes-for-v7.0-2' of https://git.pengutronix.de/git/pza/linux:
  reset: spacemit: k3: Decouple composite reset lines
  reset: gpio: fix double free in reset_add_gpio_aux_device() error path
  reset: rzg2l-usbphy-ctrl: Fix malformed MODULE_AUTHOR string

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2026-04-01 13:25:50 +02:00
Dmitry Baryshkov
1877d3f258 PM: domains: De-constify fields in struct dev_pm_domain_attach_data
It doesn't really make sense to keep u32 fields to be marked as const.
Having the const fields prevents their modification in the driver. Instead
the whole struct can be defined as const, if it is constant.

Fixes: 161e16a5e5 ("PM: domains: Add helper functions to attach/detach multiple PM domains")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2026-04-01 13:15:48 +02:00
Rosen Penev
66ab322c61 pmdomain: qcom: cpr: simplify main allocation
Remove kcalloc by using a flexible array member to combine allocations.

Signed-off-by: Rosen Penev <rosenp@gmail.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2026-04-01 13:12:11 +02:00
Maíra Canal
d797ecf3ff pmdomain: bcm: bcm2835-power: Replace open-coded polling with readl_poll_timeout_atomic()
Replace hand-rolled ktime_get_ns()/cpu_relax() polling loops with
readl_poll_timeout_atomic() for the power-on (POWOK), and memory
repair (MRDONE) waits.

No functional change intended.

Signed-off-by: Maíra Canal <mcanal@igalia.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2026-04-01 13:12:11 +02:00
Yuanshen Cao
a46e905cd1 pmdomain: sunxi: Add support for A733 to Allwinner PCK600 driver
The Allwinner A733 PCK600, similar to A523 PCK600, is likely a
customized version of ARM PCK-600 power controller. It shares the same
BSP driver with A523. According to the BSP provided by Radxa, unlike
A523, it doesn't require reset, as well as a different pair of delay
values.

Make reset optional in the sunxi pck600 driver and add support
for A733.

Signed-off-by: Yuanshen Cao <alex.caoys@gmail.com>
Reviewed-by: Chen-Yu Tsai <wens@kernel.org> # matched against BSP driver
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2026-04-01 13:12:11 +02:00
Abel Vesa
f387ecdd49 pmdomain: qcom: rpmhpd: Add Eliza RPMh Power Domains
Add RPMh Power Domains support for the Eliza platform. The list of power
domains is taken from downstream. Even though the cmd-db does list MMCX
and MXC, they are not used, so they should not be describe.

Reviewed-by: Taniya Das <taniya.das@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: Abel Vesa <abel.vesa@oss.qualcomm.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2026-04-01 13:12:11 +02:00
Ulf Hansson
6c70e42fc4 pmdomain: arm: Add print after a successful probe for SCMI power domains
It can be discussed how useful a print is after a successful probe. In the
SCMI power domain case it's seems valuable, as it let us inform about the
number of initialized power domains too, which is fetched from firmware.

Therefore, let's add a print about this, which also aligns with the
behaviour of the SCMI perf domain driver.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Cristian Marussi <cristian.marussi@arm.com>
Acked-by: Sudeep Holla <sudeep.holla@kernel.org>
2026-04-01 13:12:11 +02:00
Chris Morgan
8d2cacb20e pmdomain: rockchip: quiet regulator error on -EPROBE_DEFER
Change the dev_err() to dev_err_probe() under rockchip_pd_power_on()
to prevent errors early in the boot process when the requested
regulator is not yet available. This converts errors like the following
to debug messages:

rockchip-pm-domain fd8d8000.power-management:power-controller: Failed to enable supply: -517

Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
Tested-by: Diederik de Haas <diederik@cknow-tech.com>
Reviewed-by: Anand Moon <linux.amoon@gmail.com>
Reviewed-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2026-04-01 13:12:11 +02:00
Irving-CH Lin
6734a5e86b pmdomain: mediatek: Add power domain driver for MT8189 SoC
Introduce a new power domain (pmd) driver for the MediaTek mt8189 SoC.
This driver ports and refines the power domain framework, dividing
hardware blocks (CPU, GPU, peripherals, etc.) into independent power
domains for precise and energy-efficient power management.

Signed-off-by: Irving-CH Lin <irving-ch.lin@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2026-04-01 13:07:31 +02:00
Irving-CH Lin
35e09ed76b pmdomain: mediatek: Add bus protect control flow for MT8189
In MT8189 mminfra power domain, the bus protect policy separates
into two parts, one is set before subsys clocks enabled, and another
need to enable after subsys clocks enable.

Signed-off-by: Irving-CH Lin <irving-ch.lin@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2026-04-01 13:07:31 +02:00
Ulf Hansson
f67866701d pmdomain: core: Extend statistics for domain idle states with s2idle data
To allow user space to monitor the selection of the domain idle state
during s2idle for a CPU PM domain, let's extend the debugfs support in
genpd with this information.

Suggested-by: Dhruva Gole <d-gole@ti.com>
Reviewed-by: Dhruva Gole <d-gole@ti.com>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2026-04-01 13:07:31 +02:00
Ulf Hansson
68831a9ef9 pmdomain: core: Show latency/residency for domain idle states in debugfs
Similar to how cpuidle provides the values for latency and residency for
CPU's idle states through sysfs, let's make the corresponding data for PM
domain's idle states available for user space, via genpd's debugfs support.

Suggested-by: Dhruva Gole <d-gole@ti.com>
Reviewed-by: Dhruva Gole <d-gole@ti.com>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2026-04-01 13:07:31 +02:00
Ulf Hansson
32d731611a pmdomain: core: Restructure domain idle states data for genpd in debugfs
To prepare for additional information to be added for the domain idle
states in genpd's debugfs, let's make the existing information denser. To
allow that, let's move the static information of the domain idle states
into a separate debugfs file.

Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2026-04-01 13:07:31 +02:00
Gabor Juhos
a8a1c77a50 pmdomain: qcom: rpmpd: drop stray semicolon
Drop the unnecessary semicolon after the rpmpd_send_corner()
function's declaration.

Signed-off-by: Gabor Juhos <j4g8y7@gmail.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2026-04-01 13:07:31 +02:00
Felix Gu
c8e9b6a557 pmdomain: imx: scu-pd: Fix device_node reference leak during ->probe()
When calling of_parse_phandle_with_args(), the caller is responsible
to call of_node_put() to release the reference of device node.
In imx_sc_pd_get_console_rsrc(), it does not release the reference.

Fixes: 893cfb9973 ("firmware: imx: scu-pd: do not power off console domain")
Signed-off-by: Felix Gu <ustc.gu@gmail.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2026-04-01 13:07:31 +02:00
Felix Gu
44c28e1c52 pmdomain: ti: omap_prm: Fix a reference leak on device node
When calling of_parse_phandle_with_args(), the caller is responsible
to call of_node_put() to release the reference of device node.
In omap_prm_domain_attach_dev, it does not release the reference.

Fixes: 58cbff023b ("soc: ti: omap-prm: Add basic power domain support")
Signed-off-by: Felix Gu <gu_0233@qq.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2026-04-01 13:07:31 +02:00
AngeloGioacchino Del Regno
6d1fdcfeb0 pmdomain: mediatek: scpsys: Add MT7622 Audio power domain to legacy driver
Add the Audio power domain of the MT7622 SoC to the legacy
mtk-scpsys driver (as this legacy SoC is supported only there).

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2026-04-01 13:07:31 +02:00
Krzysztof Kozlowski
ecd2f0eaff pmdomain: mediatek: Simplify with scoped for each OF child loop
Use scoped for-each loop when iterating over device nodes to make code a
bit simpler.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2026-04-01 13:07:31 +02:00
Kendall Willis
adff6abbdc pmdomain: ti_sci: handle wakeup constraint for out-of-band wakeup
For devices capable of out-of-band system wakeups via I/O daisy chaining,
prevent sending wakeup constraints to the PM co-processor. This allows
the system to enter deeper low power modes, as the device is not marked
as requiring power.

Replaces the logic from commit b06bc47279 ("pmdomain: ti_sci: handle
wake IRQs for IO daisy chain wakeups") since checking out-of-band wakeup
will cover the same functionality.

Detect out-of-band wakeup in the suspend path, and if it exists, skip
sending the constraint.

Signed-off-by: Kendall Willis <k-willis@ti.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2026-04-01 13:07:31 +02:00
Nicolas Frattaroli
aeb6d7c676 pmdomain: mediatek: mtk-mfg: Expose shader_present as nvmem cell
Implement nvmem-provider functionality in mtk-mfg-pmdomain, such that it
can expose its GF_REG_SHADER_PRESENT value in the shared memory as an
nvmem cell for panthor.

Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2026-04-01 13:07:31 +02:00
Karel Balej
007028ed90 pmdomain: add audio power island for Marvell PXA1908 SoC
Define power domain which needs to be enabled in order for audio to work
on the PXA1908-based samsung,coreprimevelte smartphone. In the
downstream code, this power-on method is marked as specific to the ULCx
series which is allegedly a codename of sorts with ULC1 corresponding to
the PXA1908.

No other audio components needed for sound to work on this phone are
currently available mainline but some successful testing was performed
with the vendor variants of the respective drivers and with the domain
forced always-on.

Signed-off-by: Karel Balej <balejk@matfyz.cz>
Reviewed-by: Duje Mihanović <duje@dujemihanovic.xyz>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2026-04-01 13:07:31 +02:00
Marco Felsch
6cc5a23329 pmdomain: imx93-blk-ctrl: add support for optional subnodes
This particular block can have DT subnodes describing the LVDS LDB, MIPI
DSI and parallel DPI bridge.

Scan for possible sub-devices within the driver, instead of misusing the
simple-bus to perform the scan.

Reviewed-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2026-04-01 13:07:31 +02:00
Marco Felsch
52becc1422 pmdomain: imx93-blk-ctrl: convert to devm_* only
Convert the driver to devm_ APIs only by making use of
devm_add_action_or_reset() and devm_pm_runtime_enable() to simplify the
probe error path and to drop the .remove() callback. This also ensures
that the device release order equals the device probe error path order.

Furthermore drop the dev_set_drvdata() usage since the only user was the
.remove() callback which is removed by this commit.

Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2026-04-01 13:07:31 +02:00
Marco Felsch
279eb2dd55 pmdomain: imx93-blk-ctrl: cleanup error path
Call dev_err_probe() directly during return to make the code more
compact.

Reviewed-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2026-04-01 13:07:31 +02:00
Ulf Hansson
f151e47d19 pmdomain: Merge branch dt into next
Merge the immutable branch dt into next, to allow the updated DT bindings
to be tested together with the pmdomain changes that are targeted for the
next release.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2026-04-01 13:04:25 +02:00
Jacky Bai
e91d5f94ac pmdomain: imx8mp-blk-ctrl: Keep the NOC_HDCP clock enabled
Keep the NOC_HDCP clock always enabled to fix the potential hang
caused by the NoC ADB400 port power down handshake.

Fixes: 77b0ddb42a ("soc: imx: add i.MX8MP HDMI blk ctrl HDCP/HRV_MWR")
Signed-off-by: Jacky Bai <ping.bai@nxp.com>
Cc: stable@vger.kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2026-04-01 13:03:07 +02:00
Michal Wilczynski
88c4bd9072 firmware: thead: Fix buffer overflow and use standard endian macros
Addresses two issues in the TH1520 AON firmware protocol driver:

1. Fix a potential buffer overflow where the code used unsafe pointer
   arithmetic to access the 'mode' field through the 'resource' pointer
   with an offset. This was flagged by Smatch static checker as:
   "buffer overflow 'data' 2 <= 3"

2. Replace custom RPC_SET_BE* and RPC_GET_BE* macros with standard
   kernel endianness conversion macros (cpu_to_be16, etc.) for better
   portability and maintainability.

The functionality was re-tested with the GPU power-up sequence,
confirming the GPU powers up correctly and the driver probes
successfully.

[   12.702370] powervr ffef400000.gpu: [drm] loaded firmware
powervr/rogue_36.52.104.182_v1.fw
[   12.711043] powervr ffef400000.gpu: [drm] FW version v1.0 (build
6645434 OS)
[   12.719787] [drm] Initialized powervr 1.0.0 for ffef400000.gpu on
minor 0

Fixes: e4b3cbd840 ("firmware: thead: Add AON firmware protocol driver")
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/all/17a0ccce-060b-4b9d-a3c4-8d5d5823b1c9@stanley.mountain/
Signed-off-by: Michal Wilczynski <m.wilczynski@samsung.com>
Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org>
Acked-by: Drew Fustini <fustini@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2026-04-01 13:03:07 +02:00
Mohamad Alsadhan
8f3481028b rust_binder: add command/return tracepoints
Add Rust Binder `command` and `return` tracepoint declarations and
wire them in where BC commands are parsed and BR return codes are
emitted to userspace.

Signed-off-by: Mohamad Alsadhan <mo@sdhn.cc>
Link: https://patch.msgid.link/20260317-rust-binder-trace-v3-6-6fae4fbcf637@sdhn.cc
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-04-01 12:18:22 +02:00
Mohamad Alsadhan
25917c05ab rust_binder: add fd translation tracepoints
Add Rust Binder tracepoint declarations for both `transaction_fd_send`
and `transaction_fd_recv`. Also, wire in the corresponding trace calls
where fd objects are serialised/deserialised.

Signed-off-by: Mohamad Alsadhan <mo@sdhn.cc>
Link: https://patch.msgid.link/20260317-rust-binder-trace-v3-5-6fae4fbcf637@sdhn.cc
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-04-01 12:18:22 +02:00
Mohamad Alsadhan
caf3719f33 rust_binder: add transaction_received tracepoint
Add Rust Binder `transaction_received` tracepoint decalaration and
wire in the corresponding trace call when a transaction work item is
accepted for execution.

Signed-off-by: Mohamad Alsadhan <mo@sdhn.cc>
Link: https://patch.msgid.link/20260317-rust-binder-trace-v3-4-6fae4fbcf637@sdhn.cc
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-04-01 12:18:22 +02:00
Mohamad Alsadhan
2335167a61 rust_binder: add wait_for_work tracepoint
Add the Rust Binder `wait_for_work` tracepoint declaration and wire
it into the thread read path before selecting the work source.

Signed-off-by: Mohamad Alsadhan <mo@sdhn.cc>
Link: https://patch.msgid.link/20260317-rust-binder-trace-v3-3-6fae4fbcf637@sdhn.cc
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-04-01 12:18:22 +02:00
Mohamad Alsadhan
be3953bb26 rust_binder: add ioctl/read/write done tracepoints
Add Rust Binder tracepoints declarations for `ioctl_done`,
`read_done` and `write_done`.

Additionally, wire in the new tracepoints into the corresponding
Binder call sites.

Note that the new tracepoints report final errno-style return values,
matching the existing C model for operation completion.

Signed-off-by: Mohamad Alsadhan <mo@sdhn.cc>
Link: https://patch.msgid.link/20260317-rust-binder-trace-v3-2-6fae4fbcf637@sdhn.cc
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-04-01 12:18:22 +02:00
Mohamad Alsadhan
e3007a9233 rust_binder: remove "rust_" prefix from tracepoints
Remove the "rust_" prefix as the name is part of the uapi, and
userspace expects tracepoints to have the old names.

Link: https://github.com/Rust-for-Linux/linux/issues/1226
Suggested-by: Alice Ryhl <aliceryhl@google.com>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Signed-off-by: Mohamad Alsadhan <mo@sdhn.cc>
Link: https://patch.msgid.link/20260317-rust-binder-trace-v3-1-6fae4fbcf637@sdhn.cc
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-04-01 12:18:22 +02:00
Pedro Montes Alcalde
f698a253e3 rust_binder: drop startup init log message
The "Loaded Rust Binder." message is logged during normal
initialization and does not indicate an error/warning condition.

Logging it creates unnecessary noise and is inconsistent
with other drivers, so this change fixes that

Signed-off-by: Pedro Montes Alcalde <pedro.montes.alcalde@gmail.com>
Acked-by: Carlos Llamas <cmllamas@google.com>
Acked-by: Alice Ryhl <aliceryhl@google.com>
Link: https://patch.msgid.link/20260328010250.249131-2-pedro.montes.alcalde@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-04-01 12:18:21 +02:00
Alice Ryhl
fc74559e2d rust_binder: check current before closing fds
This list gets populated once the transaction is delivered to the target
process, at which point it's not touched again except in BC_FREE_BUFFER
and process exit, so if the list has been populated then this code
should not run in the context of the wrong userspace process.

However, why tempt fate? The function itself can run in the context of
both the sender and receiver, and if someone can engineer a scenario
where it runs in the sender and this list is non-empty (or future Rust
Binder changes make such a scenario possible), then that'd be a problem
because we'd be closing random unrelated fds in the wrong process.

Note that on process exit, the == comparison may actually fail because
it's called from a kthread. The fd closing code is a no-op on kthreads,
so there is no actual behavior different though.

Suggested-by: Jann Horn <jannh@google.com>
Signed-off-by: Alice Ryhl <aliceryhl@google.com>
Link: https://patch.msgid.link/20260324-close-fd-check-current-v3-4-b94274bedac7@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-04-01 12:18:21 +02:00
Alice Ryhl
ed72cfffc4 rust_binder: make use of == for Task
Now that we have implemented the == operator for Task, replace the two
raw pointer comparisons in Binder with the == operator.

Reviewed-by: Gary Guo <gary@garyguo.net>
Signed-off-by: Alice Ryhl <aliceryhl@google.com>
Link: https://patch.msgid.link/20260324-close-fd-check-current-v3-3-b94274bedac7@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-04-01 12:18:21 +02:00
Alice Ryhl
12c688086f rust: task: implement == operator for Task
It's useful to compare if two tasks are the same task or not. Rust
Binder wants this to check if a certain task is equal to the group
leader of current.

Reviewed-by: Gary Guo <gary@garyguo.net>
Signed-off-by: Alice Ryhl <aliceryhl@google.com>
Link: https://patch.msgid.link/20260324-close-fd-check-current-v3-2-b94274bedac7@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-04-01 12:18:21 +02:00
Alice Ryhl
18e9fafb26 rust: sync: implement == operator for ARef
Rust Binder wants to perform a comparison between ARef<Task> and &Task,
so define the == operator for ARef<_> when compared with another ARef<_>
or just a reference. The operator is implemented in terms of the same
operator applied to the inner type.

Note that PartialEq<U> cannot be implemented because it would overlap
with the impl for ARef<U>.

Reviewed-by: Gary Guo <gary@garyguo.net>
Signed-off-by: Alice Ryhl <aliceryhl@google.com>
Link: https://patch.msgid.link/20260324-close-fd-check-current-v3-1-b94274bedac7@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-04-01 12:18:21 +02:00
Horst Birthelmer
aff12041b4 fuse: fix inode initialization race
Fix a race between fuse_iget() and fuse_reverse_inval_inode() where
invalidation can arrive while an inode is being initialized, causing
the invalidation to be lost.
By keeping the inode state I_NEW as long as the attributes are not valid
the invalidation can wait until the inode is fully initialized.

Suggested-by: Joanne Koong <joannelkoong@gmail.com>
Signed-off-by: Horst Birthelmer <hbirthelmer@ddn.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
2026-04-01 12:12:58 +02:00
Pablo Neira Ayuso
da107398cb netfilter: nf_tables: reject immediate NF_QUEUE verdict
nft_queue is always used from userspace nftables to deliver the NF_QUEUE
verdict. Immediately emitting an NF_QUEUE verdict is never used by the
userspace nft tools, so reject immediate NF_QUEUE verdicts.

The arp family does not provide queue support, but such an immediate
verdict is still reachable. Globally reject NF_QUEUE immediate verdicts
to address this issue.

Fixes: f342de4e2f ("netfilter: nf_tables: reject QUEUE/DROP verdict parameters")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2026-04-01 11:55:30 +02:00
Pablo Neira Ayuso
3d5d488f11 netfilter: x_tables: restrict xt_check_match/xt_check_target extensions for NFPROTO_ARP
Weiming Shi says:

xt_match and xt_target structs registered with NFPROTO_UNSPEC can be
loaded by any protocol family through nft_compat. When such a
match/target sets .hooks to restrict which hooks it may run on, the
bitmask uses NF_INET_* constants. This is only correct for families
whose hook layout matches NF_INET_*: IPv4, IPv6, INET, and bridge
all share the same five hooks (PRE_ROUTING ... POST_ROUTING).

ARP only has three hooks (IN=0, OUT=1, FORWARD=2) with different
semantics. Because NF_ARP_OUT == 1 == NF_INET_LOCAL_IN, the .hooks
validation silently passes for the wrong reasons, allowing matches to
run on ARP chains where the hook assumptions (e.g. state->in being
set on input hooks) do not hold. This leads to NULL pointer
dereferences; xt_devgroup is one concrete example:

 Oops: general protection fault, probably for non-canonical address 0xdffffc0000000044: 0000 [#1] SMP KASAN NOPTI
 KASAN: null-ptr-deref in range [0x0000000000000220-0x0000000000000227]
 RIP: 0010:devgroup_mt+0xff/0x350
 Call Trace:
  <TASK>
  nft_match_eval (net/netfilter/nft_compat.c:407)
  nft_do_chain (net/netfilter/nf_tables_core.c:285)
  nft_do_chain_arp (net/netfilter/nft_chain_filter.c:61)
  nf_hook_slow (net/netfilter/core.c:623)
  arp_xmit (net/ipv4/arp.c:666)
  </TASK>
 Kernel panic - not syncing: Fatal exception in interrupt

Fix it by restricting arptables to NFPROTO_ARP extensions only.
Note that arptables-legacy only supports:

- arpt_CLASSIFY
- arpt_mangle
- arpt_MARK

that provide explicit NFPROTO_ARP match/target declarations.

Fixes: 9291747f11 ("netfilter: xtables: add device group match")
Reported-by: Xiang Mei <xmei5@asu.edu>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2026-04-01 11:55:29 +02:00
Yifan Wu
9862ef9ab0 netfilter: ipset: drop logically empty buckets in mtype_del
mtype_del() counts empty slots below n->pos in k, but it only drops the
bucket when both n->pos and k are zero. This misses buckets whose live
entries have all been removed while n->pos still points past deleted slots.

Treat a bucket as empty when all positions below n->pos are unused and
release it directly instead of shrinking it further.

Fixes: 8af1c6fbd9 ("netfilter: ipset: Fix forceadd evaluation path")
Cc: stable@vger.kernel.org
Reported-by: Juefei Pu <tomapufckgml@gmail.com>
Reported-by: Xin Liu <dstsmallbird@foxmail.com>
Signed-off-by: Yifan Wu <yifanwucs@gmail.com>
Co-developed-by: Yuan Tan <yuantan098@gmail.com>
Signed-off-by: Yuan Tan <yuantan098@gmail.com>
Reviewed-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2026-04-01 11:55:29 +02:00
Pablo Neira Ayuso
917b61fa20 netfilter: ctnetlink: ignore explicit helper on new expectations
Use the existing master conntrack helper, anything else is not really
supported and it just makes validation more complicated, so just ignore
what helper userspace suggests for this expectation.

This was uncovered when validating CTA_EXPECT_CLASS via different helper
provided by userspace than the existing master conntrack helper:

  BUG: KASAN: slab-out-of-bounds in nf_ct_expect_related_report+0x2479/0x27c0
  Read of size 4 at addr ffff8880043fe408 by task poc/102
  Call Trace:
   nf_ct_expect_related_report+0x2479/0x27c0
   ctnetlink_create_expect+0x22b/0x3b0
   ctnetlink_new_expect+0x4bd/0x5c0
   nfnetlink_rcv_msg+0x67a/0x950
   netlink_rcv_skb+0x120/0x350

Allowing to read kernel memory bytes off the expectation boundary.

CTA_EXPECT_HELP_NAME is still used to offer the helper name to userspace
via netlink dump.

Fixes: bd07793705 ("netfilter: nfnetlink_queue: allow to attach expectations to conntracks")
Reported-by: Qi Tang <tpluszz77@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2026-04-01 11:55:29 +02:00