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Merge tag 'for-6.13-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
"A few more fixes. Apart from the one liners and updated bio splitting
error handling there's a fix for subvolume mount with different flags.
This was known and fixed for some time but I've delayed it to give it
more testing.
- fix unbalanced locking when swapfile activation fails when the
subvolume gets deleted in the meantime
- add btrfs error handling after bio_split() calls that got error
handling recently
- during unmount, flush delalloc workers at the right time before the
cleaner thread is shut down
- fix regression in buffered write folio conversion, explicitly wait
for writeback as FGP_STABLE flag is currently a no-op on btrfs
- handle race in subvolume mount with different flags, the conversion
to the new mount API did not handle the case where multiple
subvolumes get mounted in parallel, which is a distro use case"
* tag 'for-6.13-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: flush delalloc workers queue before stopping cleaner kthread during unmount
btrfs: handle bio_split() errors
btrfs: properly wait for writeback before buffered write
btrfs: fix missing snapshot drew unlock when root is dead during swap activation
btrfs: fix mount failure due to remount races
- eprobes: Fix to release eprobe when failed to add dyn_event.
This unregisters event call and release eprobe when it fails to add
a dynamic event. Found in cleaning up.
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Merge tag 'probes-fixes-v6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull eprobes fix from Masami Hiramatsu:
- release eprobe when failing to add dyn_event.
This unregisters event call and release eprobe when it fails to add a
dynamic event. Found in cleaning up.
* tag 'probes-fixes-v6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
tracing/eprobe: Fix to release eprobe when failed to add dyn_event
Some enum style power-supply properties have text-values / labels for some
of the enum values containing a space, e.g. "Long Life" for
POWER_SUPPLY_CHARGE_TYPE_LONGLIFE.
Make power_supply_show_enum_with_available() replace these spaces with
'_' when showing the available text-values. After this the output for
a battery which supports "Long Life" will be e.g.:
Fast [Standard] Long_Life
or:
Fast Standard [Long_Life]
Modify power_supply_store_property() to accept both the original text-value
with space and the alternative value with the spaces replaced by '_'.
This allows users to write the value with '_' after seeing this on reading
the property.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://lore.kernel.org/r/20241209204051.8786-2-hdegoede@redhat.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The psy core and drivers currently use dev_get_drvdata() to go from a
'struct device' to its 'struct power_supply'.
This is not typesafe and or documented.
Introduce a new helper to make this pattern explicit.
Instead of using dev_get_drvdata(), use container_of_const() which
also preserves the constness.
Furthermore 'dev' does need to be dereferenced anymore and at some point
the drvdata could be reused for something else.
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://lore.kernel.org/r/20241210-power-supply-dev_to_psy-v2-7-9d8c9d24cfe4@weissschuh.net
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
All existing callers of power_supply_for_each_device() want to iterate
over 'struct power_supply', not 'struct device'.
The power_supply_for_each_device() forces each caller to duplicate the
logic to go from one to the other.
Introduce power_supply_for_each_psy() to simplify the callers.
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://lore.kernel.org/r/20241210-power-supply-dev_to_psy-v2-2-9d8c9d24cfe4@weissschuh.net
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Only some driver-specific properties were accepted, change it
to use the now-available standard properties which are
found in devicetrees containing this chip.
Signed-off-by: Andreas Kemnade <andreas@kemnade.info>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Link: https://lore.kernel.org/r/20241205204413.2466775-2-akemnade@kernel.org
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Increment the session reference count within the lock for lookup to avoid
racy issue with session expire.
Cc: stable@vger.kernel.org
Reported-by: zdi-disclosures@trendmicro.com # ZDI-CAN-25737
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Some file systems do not ensure that the single call of iterate_dir
reaches the end of the directory. For example, FUSE fetches entries from
a daemon using 4KB buffer and stops fetching if entries exceed the
buffer. And then an actor of caller, KSMBD, is used to fill the entries
from the buffer.
Thus, pattern searching on FUSE, files located after the 4KB could not
be found and STATUS_NO_SUCH_FILE was returned.
Signed-off-by: Hobin Woo <hobin.woo@samsung.com>
Reviewed-by: Sungjong Seo <sj1557.seo@samsung.com>
Reviewed-by: Namjae Jeon <linkinjeon@kernel.org>
Tested-by: Yoonho Shin <yoonho.shin@samsung.com>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
The alpha setup should start from the second layer, the current calculation
starts incorrectly from the first layer, a negative offset will be obtained
in the following formula:
offset = (mixer_id + zpos - 1) * 0x10
Fixes: 604be85547 ("drm/rockchip: Add VOP2 driver")
Tested-by: Derek Foreman <derek.foreman@collabora.com>
Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20241209122943.2781431-7-andyshrk@163.com
Some entries use my kernel.org address, while others use my Red Hat one.
Since this is a bit of an inconvinience for me, align them to all use the
same (kernel.org) address.
Acked-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20241204152248.8644-1-dakr@kernel.org
Current implementation of of_clk_get_parent_name() leaks an OF node
reference on error path. Add a of_node_put() call before returning an
error.
This bug was found by an experimental static analysis tool that I am
developing.
Fixes: 8da411cc19 ("clk: let of_clk_get_parent_name() fail for invalid clock-indices")
Signed-off-by: Joe Hattori <joe@pf.is.s.u-tokyo.ac.jp>
Link: https://lore.kernel.org/r/20241210130913.3615205-1-joe@pf.is.s.u-tokyo.ac.jp
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
This adds the glue code for the MIPI DSI2 bridge on Rockchip SoCs and
enables its use on the RK3588.
Right now the DSI2 controller is always paired with a DC-phy based on a
Samsung IP, so the interface values are set statically for now.
This stays true for the upcoming RK3576 as well.
Tested-by: Daniel Semkowicz <dse@thaumatec.com>
Tested-by: Dmitry Yashin <dmt.yashin@gmail.com>
Signed-off-by: Heiko Stuebner <heiko.stuebner@cherry.de>
Reviewed-by: Andy Yan <andy.yan@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20241209231021.2180582-4-heiko@sntech.de
The Display Serial Interface 2 (DSI-2) is part of a group of communication
protocols defined by the MIPI Alliance. The RK3588 implements this
specification in its two MIPI DSI-2 Host Controllers that are based on a
new Synopsys IP.
Tested-by: Dmitry Yashin <dmt.yashin@gmail.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Heiko Stuebner <heiko.stuebner@cherry.de>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20241209231021.2180582-3-heiko@sntech.de
Add a Synopsys Designware MIPI DSI host DRM bridge driver for their
DSI2 host controller, based on the Rockchip version from the driver
rockchip/dw-mipi-dsi2.c in their vendor-kernel with phy & bridge APIs.
While the driver is heavily modelled after the previous IP, the register
set of this DSI2 controller is completely different and there are also
additional properties like the variable-width phy interface.
Tested-by: Daniel Semkowicz <dse@thaumatec.com>
Tested-by: Dmitry Yashin <dmt.yashin@gmail.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Heiko Stuebner <heiko.stuebner@cherry.de>
Reviewed-by: Andy Yan <andy.yan@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20241209231021.2180582-2-heiko@sntech.de
Add support for the 5L35023 variant of the Versa 3 clock generator.
Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Link: https://lore.kernel.org/r/20241210170953.2936724-4-claudiu.beznea.uj@bp.renesas.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
There are some differences b/w 5L35023 and 5P35023 Versa3 clock
generator variants but the same driver could be used with minimal
adjustments. The identified differences are PLL2 Fvco, the clock sel
bit for SE2 clock and different default values for some registers.
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Link: https://lore.kernel.org/r/20241210170953.2936724-3-claudiu.beznea.uj@bp.renesas.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
The 5P35023 and 5L35035 Versa 3 clock generator variants are different but
the versaclock3 driver could be used with small adjustments. The features
that are implemented in driver and differs b/w variants are the PLL2 Fvco
and clock sel bit for SE2 clock. Adjust the driver to prepare for the
addition of 5L35023 device.
Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Link: https://lore.kernel.org/r/20241210170953.2936724-2-claudiu.beznea.uj@bp.renesas.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
RCD Upstream Port's PCI Express Capability is a component registers
block stored in RCD Upstream Port RCRB. CXL PCI driver helps to map it
during the RCD probing, but mapping failure is allowed for component
registers blocks in CXL PCI driver.
dport->regs.rcd_pcie_cap is used to store the virtual address of the RCD
Upstream Port's PCI Express Capability, add a dport->regs.rcd_pcie_cap
checking in rcd_pcie_cap_emit() just in case user accesses a invalid
address via RCD sysfs.
Fixes: c5eaec79fa ("cxl/pci: Add sysfs attribute for CXL 1.1 device link status")
Signed-off-by: Li Ming <ming.li@zohomail.com>
Reviewed-by: Alison Schofield <alison.schofield@intel.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Link: https://patch.msgid.link/20241129132825.569237-1-ming.li@zohomail.com
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
If cxl_pci_ras_unmask() returns non-zero, cxl_pci_probe() will end up
returning that value, instead of zero.
Fixes: 248529edc8 ("cxl: add RAS status unmasking for CXL")
Reviewed-by: Fan Ni <fan.ni@samsung.com>
Signed-off-by: Davidlohr Bueso <dave@stgolabs.net>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Link: https://patch.msgid.link/20241115170032.108445-1-dave@stgolabs.net
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Invalidation_fence_init takes a PM reference, which is released in its
_fini counterpart, so we need to make sure that the latter is called,
even if the fence is in an error state.
Since we already have a function that calls _fini() and signals the
fence in the tlb inval code, we can expose that and call it from the PT
code.
Fixes: f002702290 ("drm/xe: Hold a PM ref when GT TLB invalidations are inflight")
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: <stable@vger.kernel.org> # v6.11+
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Nirmoy Das <nirmoy.das@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Nirmoy Das <nirmoy.das@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241206015022.1567113-1-daniele.ceraolospurio@intel.com
Currently, the pointer stored in call->prog_array is loaded in
__uprobe_perf_func(), with no RCU annotation and no immediately visible
RCU protection, so it looks as if the loaded pointer can immediately be
dangling.
Later, bpf_prog_run_array_uprobe() starts a RCU-trace read-side critical
section, but this is too late. It then uses rcu_dereference_check(), but
this use of rcu_dereference_check() does not actually dereference anything.
Fix it by aligning the semantics to bpf_prog_run_array(): Let the caller
provide rcu_read_lock_trace() protection and then load call->prog_array
with rcu_dereference_check().
This issue seems to be theoretical: I don't know of any way to reach this
code without having handle_swbp() further up the stack, which is already
holding a rcu_read_lock_trace() lock, so where we take
rcu_read_lock_trace() in __uprobe_perf_func()/bpf_prog_run_array_uprobe()
doesn't actually have any effect.
Fixes: 8c7dcb84e3 ("bpf: implement sleepable uprobes by chaining gps")
Suggested-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Jann Horn <jannh@google.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20241210-bpf-fix-uprobe-uaf-v4-1-5fc8959b2b74@google.com
'struct img_ascii_lcd_config' is not modified in this driver.
Constifying this structure moves some data to a read-only section, so
increase overall security, especially when the structure holds some
function pointers.
On a x86_64, with allmodconfig:
Before:
======
text data bss dec hex filename
6110 728 0 6838 1ab6 drivers/auxdisplay/img-ascii-lcd.o
After:
=====
text data bss dec hex filename
6198 632 0 6830 1aae drivers/auxdisplay/img-ascii-lcd.o
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Remove 'cfg' from struct img_ascii_lcd_ctx. It is unused since commit
7e76aece6f ("auxdisplay: Extract character line display core support")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
If perf_env__insert_bpf_prog_info() returns false due to a duplicate bpf
prog info node insertion, the temporary info_node and info_linear memory
will leak. Add a check to ensure the memory is freed if the function
returns false.
Fixes: d56354dc49 ("perf tools: Save bpf_prog_info and BTF of new BPF programs")
Reviewed-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Zhongqiu Han <quic_zhonhan@quicinc.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@linaro.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <song@kernel.org>
Cc: Yicong Yang <yangyicong@hisilicon.com>
Link: https://lore.kernel.org/r/20241205084500.823660-4-quic_zhonhan@quicinc.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Function __perf_env__insert_bpf_prog_info() will return without inserting
bpf prog info node into perf env again due to a duplicate bpf prog info
node insertion, causing the temporary info_linear and info_node memory to
leak. Modify the return type of this function to bool and add a check to
ensure the memory is freed if the function returns false.
Fixes: 606f972b13 ("perf bpf: Save bpf_prog_info information as headers to perf.data")
Reviewed-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Zhongqiu Han <quic_zhonhan@quicinc.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@linaro.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <song@kernel.org>
Cc: Yicong Yang <yangyicong@hisilicon.com>
Link: https://lore.kernel.org/r/20241205084500.823660-3-quic_zhonhan@quicinc.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
If __perf_env__insert_btf() returns false due to a duplicate btf node
insertion, the temporary node will leak. Add a check to ensure the memory
is freed if the function returns false.
Fixes: a70a112317 ("perf bpf: Save BTF information as headers to perf.data")
Reviewed-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Zhongqiu Han <quic_zhonhan@quicinc.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@linaro.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <song@kernel.org>
Cc: Yicong Yang <yangyicong@hisilicon.com>
Link: https://lore.kernel.org/r/20241205084500.823660-2-quic_zhonhan@quicinc.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
For big string offsets we output comments for what string the offset
is for. If the string contains a '*/' as seen in Intel Arrowlake event
descriptions, then this causes C parsing issues for the generated
pmu-events.c. Catch such '*/' values and escape to avoid this.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Benjamin Gray <bgray@linux.ibm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sandipan Das <sandipan.das@amd.com>
Cc: Xu Yang <xu.yang_2@nxp.com>
Link: https://lore.kernel.org/r/20241113165558.628856-1-irogers@google.com
[ Used return s.replace('*/', r'\*\/') based on failure followed by request by Ian ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The bpf_remove_insns() function returns WARN_ON_ONCE(error), where
error is a result of bpf_adj_branches(), and thus should be always 0
However, if for any reason it is not 0, then it will be converted to
boolean by WARN_ON_ONCE and returned to user space as 1, not an actual
error value. Fix this by returning the original err after the WARN check.
Signed-off-by: Anton Protopopov <aspsk@isovalent.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20241210114245.836164-1-aspsk@isovalent.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Update the documentation to match the behaviour of the code.
pm_runtime_resume_and_get() always returns 0 on success, even if
__pm_runtime_resume() returns 1.
Fixes: 2c412337cf ("PM: runtime: Add documentation for pm_runtime_resume_and_get()")
Signed-off-by: Paul Barker <paul.barker.ct@bp.renesas.com>
Link: https://patch.msgid.link/20241203143729.478-1-paul.barker.ct@bp.renesas.com
[ rjw: Subject and changelog edits, adjusted new comment formatting ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Since HYBRID_SCALING_FACTOR_MTL is not going to be suitable for Arrow
Lake in general, drop it from the "known hybrid scaling factors" list of
platforms, so the scaling factor for it will be determined with the
help of information provided by the platform firmware via CPPC.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://patch.msgid.link/2307515.iZASKD2KPV@rjwysocki.net
The perf-to-frequency scaling factors are used by intel_pstate on hybrid
platforms to cast performance levels to frequency on different types of
CPUs which is needed because the generic cpufreq sysfs interface works
in the frequency domain.
For some hybrid platforms already in the field, the scaling factors are
known, but for others (including some upcoming ones) they most likely
will be different and the only way to get them that scales is to use
information provided by the platform firmware. In this particular case,
the requisite information can be obtained via CPPC.
If the P-core hybrid scaling factor for the given processor model is not
known, use CPPC to compute hybrid scaling factors for all CPUs.
Since the current default hybrid scaling factor is only suitable for a
few early hybrid platforms, add intel_hybrid_scaling_factor[] entries
for them and initialize the scaling factor to zero ("unknown") by
default.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://patch.msgid.link/8476313.T7Z3S40VBb@rjwysocki.net
Clearwater Forest (CWF) SoC has the same C-states as Sierra Forest (SRF)
SoC. Add CWF support by re-using the SRF C-states table.
Note: it is expected that CWF C-states will have same or very similar
characteristics as SRF C-states (latency and target residency).
However, there is a possibility that the characteristics will end up
being different enough when the CWF platform development is finished.
In that case, a separate CWF C-states table will be created and populated
with the CWF-specific characteristics (latency and target residency).
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Link: https://patch.msgid.link/20241203130306.1559024-1-artem.bityutskiy@linux.intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>