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1,464,522 commits

Author SHA1 Message Date
Andre Carvalho
6ecc08329b selftests: netconsole: validate target resume
Introduce a new netconsole selftest to validate that netconsole is able
to resume a deactivated target when the low level interface comes back.

The test setups the network using netdevsim, creates a netconsole target
and then remove/add netdevsim in order to bring the same interfaces
back. Afterwards, the test validates that the target works as expected.

Targets are created via cmdline parameters to the module to ensure that
we are able to resume targets that were bound by mac and interface name.

Reviewed-by: Breno Leitao <leitao@debian.org>
Signed-off-by: Andre Carvalho <asantostc@gmail.com>
Tested-by: Breno Leitao <leitao@debian.org>
Link: https://patch.msgid.link/20260118-netcons-retrigger-v11-7-4de36aebcf48@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-01-21 19:09:12 -08:00
Andre Carvalho
220dbe3c76 netconsole: resume previously deactivated target
Attempt to resume a previously deactivated target when the associated
interface comes back (NETDEV_REGISTER) or when it changes name
(NETDEV_CHANGENAME) by calling netpoll_setup on the device.

Depending on how the target was setup (by mac or interface name), the
corresponding field is compared with the device being brought up. Targets
that match the incoming device, are scheduled for resume on a workqueue.

Resuming happens on a workqueue as we can't execute netpoll_setup in the
context of the netdev event. A standalone workqueue (as opposed to the
global one) is used to allow for proper cleanup process during
netconsole module cleanup as we need to be able to flush all pending
work before traversing the target list given that targets are temporarily
removed from the list during resume_target.

Target transitions to STATE_DISABLED in case of failures resuming it to
avoid retrying the same target indefinitely.

Signed-off-by: Andre Carvalho <asantostc@gmail.com>
Reviewed-by: Breno Leitao <leitao@debian.org>
Tested-by: Breno Leitao <leitao@debian.org>
Link: https://patch.msgid.link/20260118-netcons-retrigger-v11-6-4de36aebcf48@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-01-21 19:09:11 -08:00
Andre Carvalho
c52861e566 netconsole: introduce helpers for dynamic_netconsole_mutex lock/unlock
This commit introduces two helper functions to perform lock/unlock on
dynamic_netconsole_mutex providing no-op stub versions when compiled
without CONFIG_NETCONSOLE_DYNAMIC and refactors existing call sites to
use the new helpers.

This is done following kernel coding style guidelines, in preparation
for an upcoming change. It avoids the need for preprocessor conditionals
in the call site and keeps the logic easier to follow.

Signed-off-by: Andre Carvalho <asantostc@gmail.com>
Reviewed-by: Breno Leitao <leitao@debian.org>
Tested-by: Breno Leitao <leitao@debian.org>
Link: https://patch.msgid.link/20260118-netcons-retrigger-v11-5-4de36aebcf48@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-01-21 19:09:11 -08:00
Andre Carvalho
5b11408743 netconsole: clear dev_name for devices bound by mac
This patch makes sure netconsole clears dev_name for devices bound by mac
in order to allow calling setup_netpoll on targets that have previously
been cleaned up (in order to support resuming deactivated targets).

This is required as netpoll_setup populates dev_name even when devices are
matched via mac address. The cleanup is done inside netconsole as bound
by mac is a netconsole concept.

Signed-off-by: Andre Carvalho <asantostc@gmail.com>
Reviewed-by: Breno Leitao <leitao@debian.org>
Tested-by: Breno Leitao <leitao@debian.org>
Link: https://patch.msgid.link/20260118-netcons-retrigger-v11-4-4de36aebcf48@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-01-21 19:09:11 -08:00
Breno Leitao
e8f4005ab2 netconsole: add STATE_DEACTIVATED to track targets disabled by low level
When the low level interface brings a netconsole target down, record this
using a new STATE_DEACTIVATED state. This allows netconsole to distinguish
between targets explicitly disabled by users and those deactivated due to
interface state changes.

It also enables automatic recovery and re-enabling of targets if the
underlying low-level interfaces come back online.

From a code perspective, anything that is not STATE_ENABLED is disabled.

Devices (de)enslaving are marked STATE_DISABLED to prevent automatically
resuming as enslaved interfaces cannot have netconsole enabled.

Signed-off-by: Breno Leitao <leitao@debian.org>
Signed-off-by: Andre Carvalho <asantostc@gmail.com>
Tested-by: Breno Leitao <leitao@debian.org>
Link: https://patch.msgid.link/20260118-netcons-retrigger-v11-3-4de36aebcf48@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-01-21 19:09:11 -08:00
Andre Carvalho
a46bb0103c netconsole: convert 'enabled' flag to enum for clearer state management
This patch refactors the netconsole driver's target enabled state from a
simple boolean to an explicit enum (`target_state`).

This allow the states to be expanded to a new state in the upcoming
change.

Co-developed-by: Breno Leitao <leitao@debian.org>
Signed-off-by: Breno Leitao <leitao@debian.org>
Reviewed-by: Breno Leitao <leitao@debian.org>
Signed-off-by: Andre Carvalho <asantostc@gmail.com>
Tested-by: Breno Leitao <leitao@debian.org>
Link: https://patch.msgid.link/20260118-netcons-retrigger-v11-2-4de36aebcf48@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-01-21 19:09:10 -08:00
Breno Leitao
d793db4aa0 netconsole: add target_state enum
Introduces a enum to track netconsole target state which is going to
replace the enabled boolean.

Signed-off-by: Breno Leitao <leitao@debian.org>
Signed-off-by: Andre Carvalho <asantostc@gmail.com>
Tested-by: Breno Leitao <leitao@debian.org>
Link: https://patch.msgid.link/20260118-netcons-retrigger-v11-1-4de36aebcf48@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-01-21 19:09:10 -08:00
Slark Xiao
2030c4358b Revert "net: wwan: mhi_wwan_mbim: Avoid -Wflex-array-member-not-at-end warning"
This reverts commit eeecf5d3a3.

This change lead to MHI WWAN device can't connect to internet.
I found a netwrok issue with kernel 6.19-rc4, but network works
well with kernel 6.18-rc1. After checking, this commit is the
root cause.

Before appliing this serial changes on MHI WWAN network, we shall
revert this change in case of v6.19 being impacted.

Fixes: eeecf5d3a3 ("net: wwan: mhi_wwan_mbim: Avoid -Wflex-array-member-not-at-end warning")
Signed-off-by: Slark Xiao <slark_xiao@163.com>
Link: https://patch.msgid.link/20260120072018.29375-1-slark_xiao@163.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-01-21 19:03:37 -08:00
Jakub Kicinski
938b404e25 Merge branch 'add-devm_clk_bulk_get_optional_enable-helper-and-use-in-axi-ethernet-driver'
Suraj Gupta says:

====================
Add devm_clk_bulk_get_optional_enable() helper and use in AXI Ethernet driver

This patch series introduces a new managed clock framework helper function
and demonstrates its usage in AXI ethernet driver.

Device drivers frequently need to get optional bulk clocks, prepare them,
and enable them during probe, while ensuring automatic cleanup on device
unbind. Currently, this requires three separate operations with manual
cleanup handling.

The new devm_clk_bulk_get_optional_enable() helper combines these
operations into a single managed call, eliminating boilerplate code and
following the established pattern of devm_clk_bulk_get_all_enabled().
====================

Link: https://patch.msgid.link/20260116192725.972966-1-suraj.gupta2@amd.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-01-21 18:57:10 -08:00
Sean Anderson
808d077f5b net: xilinx: axienet: Use devres for resource management in probe path
Transition axienet_probe() to managed resource allocation using devm_*
APIs for network device and clock handling, while improving error paths
with dev_err_probe(). This eliminates the need for manual resource
cleanup during probe failures and streamlines the remove() function.

Signed-off-by: Sean Anderson <sean.anderson@linux.dev>
Co-developed-by: Suraj Gupta <suraj.gupta2@amd.com>
Signed-off-by: Suraj Gupta <suraj.gupta2@amd.com>
Link: https://patch.msgid.link/20260116192725.972966-3-suraj.gupta2@amd.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-01-21 18:57:07 -08:00
Suraj Gupta
820ce0c8e9 clk: Add devm_clk_bulk_get_optional_enable() helper
Add a new managed clock framework helper function that combines getting
optional bulk clocks and enabling them in a single operation.

The devm_clk_bulk_get_optional_enable() function simplifies the common
pattern where drivers need to get optional bulk clocks, prepare and enable
them, and have them automatically disabled/unprepared and freed when the
device is unbound.

This new API follows the established pattern of
devm_clk_bulk_get_all_enabled() and reduces boilerplate code in drivers
that manage multiple optional clocks.

Suggested-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Suraj Gupta <suraj.gupta2@amd.com>
Reviewed-by: Brian Masney <bmasney@redhat.com>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Link: https://patch.msgid.link/20260116192725.972966-2-suraj.gupta2@amd.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-01-21 18:57:07 -08:00
Po-Hao Huang
8da7e88682 wifi: rtw89: 8922a: add digital compensation for 2GHz
This fixes transmit power too low under 2GHz connection. Previously
we missed the settings of 2GHz, add the according calibrated tables.

Signed-off-by: Po-Hao Huang <phhuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260117044157.2392958-10-pkshih@realtek.com
2026-01-22 10:16:40 +08:00
Ping-Ke Shih
1945c83dc5 wifi: rtw89: mac: set force MBA duration to 0
Enable force MBA (Multi-user Block Ack) field to ensure trasnmiting
packet of duration field of MBA in multi-user block ack request is 0
as expected.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260117044157.2392958-9-pkshih@realtek.com
2026-01-22 10:16:27 +08:00
Ping-Ke Shih
9cc1a84c53 wifi: rtw89: mac: clear DTOP disable excluding CID7090 variant for RTL8922D
The data TX FIFO operation (DTOP) is a hardware component in TMAC circuit
to control TX flow, since CID7090 variant can clear DTOP by default, no
need it by driver.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260117044157.2392958-8-pkshih@realtek.com
2026-01-22 10:16:17 +08:00
Zong-Zhe Yang
5fe702e4b2 wifi: rtw89: phy: update TSSI flow for RTL8922D
TSSI is to do TX compensation caused by temperature. The RTL8922D defines
different H2C command format. Update it accordingly.

Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260117044157.2392958-7-pkshih@realtek.com
2026-01-22 10:16:01 +08:00
Ping-Ke Shih
4809013c08 wifi: rtw89: phy: add firmware element of digital TX power compensation
Define and set compensation value to corresponding frequency bands.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260117044157.2392958-6-pkshih@realtek.com
2026-01-22 10:14:30 +08:00
Eric Huang
bcd23ebfef wifi: rtw89: phy: update edcca log parsing for RTL8922D
Before this change the rtw89_phy_edcca_log routine didn't handled
RTL8922D. This update expands the logic to recognize RTL8922D EDCCA
reports.

Signed-off-by: Eric Huang <echuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260117044157.2392958-5-pkshih@realtek.com
2026-01-22 10:14:17 +08:00
Eric Huang
20380a039d wifi: rtw89: phy: add H2C command to send detail RX gain and link parameters for PS mode
Introduce support for a new PS multi-link common info version (v1)
for RTL8922D, enabling the driver to send detailed RX gain and link
parameters to firmware via a new H2C command.

A dedicated 20 MHz beacon channel (chan_bcn) that replicates the primary
channel and band type of the original channel but forces a 20 MHz width.
This ensures that beacon mode always reference the 20 MHz gain table,
fixing the mis-assignment that could degrade signal strength or cause
incorrect RSSI calibration.

Signed-off-by: Eric Huang <echuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260117044157.2392958-4-pkshih@realtek.com
2026-01-22 10:12:44 +08:00
Eric Huang
496a0752fe wifi: rtw89: phy: handle C2H event for PS mode report
Introduce support for processing the new PS C2H report, enabling
detailed debugging of low-power state hardware changes.

Signed-off-by: Eric Huang <echuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260117044157.2392958-3-pkshih@realtek.com
2026-01-22 10:11:15 +08:00
Ping-Ke Shih
32f6bf1872 wifi: rtw89: phy: add chip_ops to calculate RX gain from efuse to support PS mode
In PS mode, it needs to restore RX gain settings while waking up. Add to
get RX gain values from chip specific ops, and pass these data to firmware
when going to enter PS mode.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260117044157.2392958-2-pkshih@realtek.com
2026-01-22 10:09:46 +08:00
Zilin Guan
6070a44051 wifi: rtw89: debug: Fix memory leak in __print_txpwr_map()
In __print_txpwr_map(), memory is allocated to bufp via vzalloc().
If max_valid_addr is 0, the function returns -EOPNOTSUPP immediately
without freeing bufp, leading to a memory leak.

Since the validation of max_valid_addr does not depend on the allocated
memory, fix this by moving the vzalloc() call after the check.

Compile tested only. Issue found using a prototype static analysis tool
and code review.

Fixes: 036042e157 ("wifi: rtw89: debug: txpwr table supports Wi-Fi 7 chips")
Suggested-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Zilin Guan <zilin@seu.edu.cn>
Reviewed-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260116130834.1413924-1-zilin@seu.edu.cn
2026-01-22 09:58:37 +08:00
Shin-Yi Lin
5f65ebf9aa wifi: rtw89: Add default ID 28de:2432 for RTL8832CU
Add 28de:2432 for RTL8832CU-based adapters that use this default ID.

Signed-off-by: Shin-Yi Lin <isaiah@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260114014906.21829-1-pkshih@realtek.com
2026-01-22 09:55:51 +08:00
Po-Hao Huang
6f6d7a325f wifi: rtw89: fix unable to receive probe responses under MLO connection
During MLO connections, A1 of the probe responses we received are
in link address, these frames will then be dropped by mac80211 due to
not matching the MLD address in ieee80211_scan_accept_presp().
Fix this by using MLD address to scan when not using random MAC address.

Signed-off-by: Po-Hao Huang <phhuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260114013950.19704-13-pkshih@realtek.com
2026-01-22 09:43:19 +08:00
Po-Hao Huang
76bada91a4 wifi: rtw89: phy: fix incorrect power limit by mac_id
Modify the power register range based on chip ability. When not set, the
default value is random. This fixes incorrect power limit on some ICs.

Signed-off-by: Po-Hao Huang <phhuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260114013950.19704-12-pkshih@realtek.com
2026-01-22 09:43:08 +08:00
Ping-Ke Shih
a0343cdc77 wifi: rtw89: phy: refine initial flow of BB wrapper
Set initial value of TX power and TX path per MAC ID to 0x0, and reorder
initial flow as vendor driver does.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260114013950.19704-11-pkshih@realtek.com
2026-01-22 09:42:58 +08:00
Ping-Ke Shih
ee866bb4aa wifi: rtw89: phy: write BB wrapper registers with flush
BB wrapper is a hardware circuit to control TX power, and for single
writing it needs an additional flush to ensure writing is properly
completed.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260114013950.19704-10-pkshih@realtek.com
2026-01-22 09:42:47 +08:00
Ping-Ke Shih
51cc8220f8 wifi: rtw89: phy: update BB wrapper RFSI
RTL8922D adds newly BB wrapper RFSI, including compensation values
and threshold, bandedge settings, and CIM3K coefficient.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260114013950.19704-9-pkshih@realtek.com
2026-01-22 09:41:15 +08:00
Eric Huang
d6cc6e12c1 wifi: rtw89: phy: update bb wrapper TPU init
Set DBW by rate to on in TPU (TX Power Unit) init, and extend to
initialize two hardware bands.

Signed-off-by: Eric Huang <echuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260114013950.19704-8-pkshih@realtek.com
2026-01-22 09:39:48 +08:00
Ping-Ke Shih
ace51dc803 wifi: rtw89: phy: abstract BB wrap registers to share initial flow
BB wrap registers are to configure TX power in MAC register domain, but
they are controlled and designed by BB layer. Since coming chips use
different register address, add a struct to define them.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260114013950.19704-7-pkshih@realtek.com
2026-01-22 09:38:18 +08:00
Eric Huang
0e8818a309 wifi: rtw89: phy: extend register to read history 2 of PHY env_monitor
For old chips, history is 8 bits storing in single one register, and
RTL8922D's one is 16 bits and two registers. Extend to common flow
accordingly.

Signed-off-by: Eric Huang <echuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260114013950.19704-6-pkshih@realtek.com
2026-01-22 09:36:46 +08:00
Ping-Ke Shih
fc31826cbc wifi: rtw89: phy: abstract start address and EHT of PHY status bitmap
Select PHY status being reported by a set of addresses. Abstract the
address and EHT bitmap to share common flow.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260114013950.19704-5-pkshih@realtek.com
2026-01-22 09:35:13 +08:00
Ping-Ke Shih
3b99dac7bf wifi: rtw89: phy: add ops rtw89_phy_gen_be_v1 for RTL8922D
Define RTL8922D specific registers, including PHY base control register,
PHY status, CFO registers, and TX power registers.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260114013950.19704-4-pkshih@realtek.com
2026-01-22 09:33:42 +08:00
Ping-Ke Shih
1e3c50e0b4 wifi: rtw89: phy: add {read,write}_rf_v3 for RTL8922D
Implement to access RF registers for RTL8922D.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260114013950.19704-3-pkshih@realtek.com
2026-01-22 09:32:12 +08:00
Ping-Ke Shih
e497fc05e9 wifi: rtw89: mac: clear global interrupt right after power-on
The global interrupt indicator is always persistent, and firmware will
handle it right after boot. To prevent this unnecessary handling, clear
the indicator before downloading firmware.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260114013950.19704-2-pkshih@realtek.com
2026-01-22 09:30:37 +08:00
Marco Crivellari
f65ca6c511 wifi: rtw88: add WQ_PERCPU to alloc_workqueue users
Currently if a user enqueues a work item using schedule_delayed_work() the
used wq is "system_wq" (per-cpu wq) while queue_delayed_work() use
WORK_CPU_UNBOUND (used when a cpu is not specified). The same applies to
schedule_work() that is using system_wq and queue_work(), that makes use
again of WORK_CPU_UNBOUND.

This lack of consistency cannot be addressed without refactoring the API.
For more details see the Link tag below.

alloc_workqueue() treats all queues as per-CPU by default, while unbound
workqueues must opt-in via WQ_UNBOUND.

This default is suboptimal: most workloads benefit from unbound queues,
allowing the scheduler to place worker threads where they’re needed and
reducing noise when CPUs are isolated.

This continues the effort to refactor workqueue APIs, which began with
the introduction of new workqueues and a new alloc_workqueue flag in:

commit 128ea9f6cc ("workqueue: Add system_percpu_wq and system_dfl_wq")
commit 930c2ea566 ("workqueue: Add new WQ_PERCPU flag")

This change adds a new WQ_PERCPU flag to explicitly request
alloc_workqueue() to be per-cpu when WQ_UNBOUND has not been specified.

With the introduction of the WQ_PERCPU flag (equivalent to !WQ_UNBOUND),
any alloc_workqueue() caller that doesn’t explicitly specify WQ_UNBOUND
must now use WQ_PERCPU.

Once migration is complete, WQ_UNBOUND can be removed and unbound will
become the implicit default.

Suggested-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Marco Crivellari <marco.crivellari@suse.com>
Link: https://lore.kernel.org/all/20250221112003.1dSuoGyc@linutronix.de/
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20251113160605.381777-3-marco.crivellari@suse.com
2026-01-22 09:26:33 +08:00
Swapnil Sapkal
d40c68a49f perf header: Support CPU DOMAIN relation info
The '/proc/schedstat' file gives info about load balancing statistics
within a given domain.

It also contains the cpu_mask giving information about the sibling cpus
and domain names after schedstat version 17.

Storing this information in perf header will help tools like `perf sched
stats` for better analysis.

Signed-off-by: Swapnil Sapkal <swapnil.sapkal@amd.com>
Tested-by: Chen Yu <yu.c.chen@intel.com>
Acked-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Anubhav Shelat <ashelat@redhat.com>
Cc: Ben Gainey <ben.gainey@arm.com>
Cc: Blake Jones <blakejones@google.com>
Cc: Chun-Tse Shao <ctshao@google.com>
Cc: David Vernet <void@manifault.com>
Cc: Dmitriy Vyukov <dvyukov@google.com>
Cc: Dr. David Alan Gilbert <linux@treblig.org>
Cc: Gautham Shenoy <gautham.shenoy@amd.com>
Cc: Graham Woodward <graham.woodward@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Juri Lelli <juri.lelli@redhat.com>
Cc: K Prateek Nayak <kprateek.nayak@amd.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@arm.com>
Cc: Madadi Vineeth Reddy <vineethr@linux.ibm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Sandipan Das <sandipan.das@amd.com>
Cc: Santosh Shukla <santosh.shukla@amd.com>
Cc: Shrikanth Hegde <sshegde@linux.ibm.com>
Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: Tejun Heo <tj@kernel.org>
Cc: Thomas Falcon <thomas.falcon@intel.com>
Cc: Tim Chen <tim.c.chen@linux.intel.com>
Cc: Vincent Guittot <vincent.guittot@linaro.org>
Cc: Yang Jihong <yangjihong@bytedance.com>
Cc: Yujie Liu <yujie.liu@intel.com>
Cc: Zhongqiu Han <quic_zhonhan@quicinc.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-01-21 21:55:09 -03:00
Swapnil Sapkal
cb68cba445 tools/lib: Add list_is_first()
Add list_is_first() to check whether @list is the first entry in list @head

Signed-off-by: Swapnil Sapkal <swapnil.sapkal@amd.com>
Tested-by: Chen Yu <yu.c.chen@intel.com>
Acked-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Anubhav Shelat <ashelat@redhat.com>
Cc: Ben Gainey <ben.gainey@arm.com>
Cc: Blake Jones <blakejones@google.com>
Cc: Chun-Tse Shao <ctshao@google.com>
Cc: David Vernet <void@manifault.com>
Cc: Dmitriy Vyukov <dvyukov@google.com>
Cc: Dr. David Alan Gilbert <linux@treblig.org>
Cc: Gautham Shenoy <gautham.shenoy@amd.com>
Cc: Graham Woodward <graham.woodward@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Juri Lelli <juri.lelli@redhat.com>
Cc: K Prateek Nayak <kprateek.nayak@amd.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@arm.com>
Cc: Madadi Vineeth Reddy <vineethr@linux.ibm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Sandipan Das <sandipan.das@amd.com>
Cc: Santosh Shukla <santosh.shukla@amd.com>
Cc: Shrikanth Hegde <sshegde@linux.ibm.com>
Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: Tejun Heo <tj@kernel.org>
Cc: Thomas Falcon <thomas.falcon@intel.com>
Cc: Tim Chen <tim.c.chen@linux.intel.com>
Cc: Vincent Guittot <vincent.guittot@linaro.org>
Cc: Yang Jihong <yangjihong@bytedance.com>
Cc: Yujie Liu <yujie.liu@intel.com>
Cc: Zhongqiu Han <quic_zhonhan@quicinc.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-01-21 21:54:59 -03:00
Tejun Heo
0ff6402de7 cgroup: Remove stale cpu.rt.max reference from documentation
cpu.rt.max was a proposed interface that never landed in mainline. Remove the
reference from cgroup-v2 documentation.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Orestis Floros <orestisflo@gmail.com>
2026-01-21 14:24:59 -10:00
Marek Vasut
a007721712 Input: ili210x - add support for polling mode
There are designs incorporating Ilitek ILI2xxx touch controller that
do not connect interrupt pin, for example Waveshare 13.3" DSI display.
To support such systems use polling mode for the input device when I2C
client does not have interrupt assigned to it.

Factor out ili210x_firmware_update_noirq() to allow conditional scoped
guard around this code. The scoped guard has to be applied only in case
the IRQ line is connected, and not applied otherwise.

Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Link: https://patch.msgid.link/20260121230736.114623-2-marek.vasut+renesas@mailbox.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-01-21 16:17:51 -08:00
Marek Vasut
87ac7cfac4 dt-bindings: touchscreen: trivial-touch: Drop 'interrupts' requirement for old Ilitek
The old Ilitek touch controllers V3 and V6 can operate without
interrupt line, in polling mode. Drop the 'interrupts' property
requirement for those four controllers. To avoid overloading the
trivial-touch, fork the old Ilitek V3/V6 touch controller binding
into separate document.

Reviewed-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Link: https://patch.msgid.link/20260121230736.114623-1-marek.vasut+renesas@mailbox.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-01-21 16:17:51 -08:00
Kery Qi
a32ae26584 selftests/bpf: Fix resource leak in serial_test_wq on attach failure
When wq__attach() fails, serial_test_wq() returns early without calling
wq__destroy(), leaking the skeleton resources allocated by
wq__open_and_load(). This causes ASAN leak reports in selftests runs.

Fix this by jumping to a common clean_up label that calls wq__destroy()
on all exit paths after successful open_and_load.

Note that the early return after wq__open_and_load() failure is correct
and doesn't need fixing, since that function returns NULL on failure
(after internally cleaning up any partial allocations).

Fixes: 8290dba519 ("selftests/bpf: wq: add bpf_wq_start() checks")
Signed-off-by: Kery Qi <qikeyu2017@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Yonghong Song <yonghong.song@linux.dev>
Link: https://lore.kernel.org/bpf/20260121094114.1801-3-qikeyu2017@gmail.com
2026-01-21 16:12:10 -08:00
Jörg Wedekind
959ac08a2c PCI: Mark 3ware-9650SA Root Port Extended Tags as broken
Per PCIe r7.0, sec 2.2.6.2.1 and 7.5.3.4, a Requester may not use 8-bit Tags
unless its Extended Tag Field Enable is set, but all Receivers/Completers
must handle 8-bit Tags correctly regardless of their Extended Tag Field
Enable.

Some devices do not handle 8-bit Tags as Completers, so add a quirk for
them.  If we find such a device, we disable Extended Tags for the entire
hierarchy to make peer-to-peer DMA possible.

The 3ware 9650SA seems to have issues with handling 8-bit tags. Mark it as
broken.

This fixes PCI Parity Errors like :

  3w-9xxx: scsi0: ERROR: (0x06:0x000C): PCI Parity Error: clearing.
  3w-9xxx: scsi0: ERROR: (0x06:0x000D): PCI Abort: clearing.
  3w-9xxx: scsi0: ERROR: (0x06:0x000E): Controller Queue Error: clearing.
  3w-9xxx: scsi0: ERROR: (0x06:0x0010): Microcontroller Error: clearing.

Fixes: 60db3a4d8c ("PCI: Enable PCIe Extended Tags if supported")
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=202425
Signed-off-by: Jörg Wedekind <joerg@wedekind.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://patch.msgid.link/20260119143114.21948-1-joerg@wedekind.de
2026-01-21 18:11:01 -06:00
Thomas Weißschuh
502678b88c
kbuild: Reject unexpected values for LLVM=
The LLVM argument is documented to accept one of three forms:
* a literal '1' to use the default 'clang',
* a toolchain prefix path, ending in a trailing '/',
* a version suffix.

All other values are silently treated as '1'. If for example
the user accidentally forgets the trailing '/' of a toolchain prefix,
kbuild will unexpectedly and silently fall back to the system toolchain.

Instead report an error if the user specified an invalid value for LLVM.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Nicolas Schier <nsc@kernel.org>
Tested-by: Nicolas Schier <nsc@kernel.org>
Link: https://patch.msgid.link/20260121-kbuild-llvm-arg-v2-1-5e4d8dca4ad8@weissschuh.net
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
2026-01-21 17:01:30 -07:00
Jihan LIN
301a02d405
Documentation/kbuild: gendwarfksyms: Style cleanup
The indentation in gendwarfksyms.rst currently uses a mix of tabs and
spaces. Convert all indentation to tabs, and match the usage output and
code examples with theirs references.

Suggested-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Jihan LIN <linjh22s@gmail.com>
Reviewed-by: Petr Pavlu <petr.pavlu@suse.com>
Link: https://patch.msgid.link/20260114-documents_gendwarfksyms-v2-2-297c98bd62c6@gmail.com
[nathan: Minor commit message formatting adjustment]
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
2026-01-21 16:58:59 -07:00
Jihan LIN
983233ac2e
Documentation/kbuild: Document gendwarfksyms build dependencies
Although dependencies for gendwarfksyms were recently added to the
packaging rules [1-2], the corresponding documentation was missing.

Document the required build dependencies for gendwarfksyms, and
include a few examples for installing these dependencies on some
distributions.

[1] commit 657f96cb7c ("kbuild: deb-pkg: Add libdw-dev:native to Build-Depends-Arch")
[2] commit 5bd6bdd0f7 ("kbuild: rpm-pkg: Add (elfutils-devel or libdw-devel) to BuildRequires")

Signed-off-by: Jihan LIN <linjh22s@gmail.com>
Reviewed-by: Petr Pavlu <petr.pavlu@suse.com>
Link: https://patch.msgid.link/20260114-documents_gendwarfksyms-v2-1-297c98bd62c6@gmail.com
[nathan: Applied Petr's suggested changes from review and minor commit
         message formatting adjustments]
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
2026-01-21 16:58:42 -07:00
Akhil P Oommen
50c4a49f72 drm/msm/a8xx: Add UBWC v6 support
Adreno 840 GPU supports UBWC v6. Add support for this.

Signed-off-by: Akhil P Oommen <akhilpo@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/700073/
Link: https://lore.kernel.org/r/20260121-kaana-gpu-support-v5-1-984848af12e4@oss.qualcomm.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
2026-01-22 01:23:22 +02:00
Dmitry Baryshkov
b38d2c3302 drm/ci: ignore Gamma test failures on Qualcomm SC7180
It seems, on SC7180 color conversion results are not included into the
CRC calculation (unlike SM8350). The fails for SC7180 already lists CTM
tests. Add gamma-related tests too.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Acked-by: Daniel Stone <daniels@collabora.com>
Patchwork: https://patchwork.freedesktop.org/patch/699820/
Link: https://lore.kernel.org/r/20260121-dpu-sc7180-ignore-gamma-v1-1-84f2cc2beeb1@oss.qualcomm.com
2026-01-22 01:22:47 +02:00
Federico Amedeo Izzo
39a750ff5f drm/msm/dpu: Add DSPP GC driver to provide GAMMA_LUT DRM property
Add support for DSPP GC block in DPU driver for Qualcomm SoCs.
Expose the GAMMA_LUT DRM property, which is needed to enable
night light and basic screen color calibration.

I used LineageOS downstream kernel as a reference and found the LUT
format by trial-and-error on OnePlus 6.

Tested on oneplus-enchilada (sdm845-mainline 6.16-dev) and xiaomi-tissot
(msm8953-mainline 6.12/main).

Tested-by: David Heidelberg <david@ixit.cz>  # Pixel 3 (next-20251018)
Tested-by: Guido Günther <agx@sigxcpu.org> # on sdm845-shift-axolotl
Signed-off-by: Federico Amedeo Izzo <federico@izzo.pro>
Tested-by: Steev Klimaszewski <threeway@gmail.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/682102/
Link: https://lore.kernel.org/r/20251019-dpu-add-dspp-gc-driver-v3-1-840491934e56@izzo.pro
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
2026-01-22 01:22:37 +02:00
Dmitry Torokhov
8a8e63fedb Input: appletouch - fix potential race between resume and open
Take the input device's mutex in atp_resume() and atp_recover() to make
sure they are not racing with open and close methods, and use
input_device_enabled() helper to see if communication with the device
needs to be restarted after resume.

Link: https://patch.msgid.link/uuwucixxc2ckd6ul6yv5mdvkc3twytg4tg5a5vhfqg6m2qcodc@klaco6axglbm
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-01-21 14:41:10 -08:00
David Howells
d3b6dd90e2 crypto: Add ML-DSA crypto_sig support
Add verify-only public key crypto support for ML-DSA so that the
X.509/PKCS#7 signature verification code, as used by module signing,
amongst other things, can make use of it through the common crypto_sig API.

Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
cc: Eric Biggers <ebiggers@kernel.org>
cc: Lukas Wunner <lukas@wunner.de>
cc: Ignat Korchagin <ignat@cloudflare.com>
cc: Stephan Mueller <smueller@chronox.de>
cc: Herbert Xu <herbert@gondor.apana.org.au>
cc: keyrings@vger.kernel.org
cc: linux-crypto@vger.kernel.org
2026-01-21 22:32:50 +00:00