Small series that addresses a problem where DSP status dump
for a failure case, ends up being printed as as debug print. This
is important information for any bug report. While at it, the series
contains a few cleanups to related code.
Ranjani Sridharan (3):
ASoC: SOF: Intel: hda: remove duplicated status dump
ASoC: SOF: modify the SOF_DBG flags
ASoC: SOF: Intel: hda: fix the condition passed to sof_dev_dbg_or_err
sound/soc/sof/debug.c | 2 +-
sound/soc/sof/intel/byt.c | 2 +-
sound/soc/sof/intel/hda-loader.c | 19 +++++++++++++------
sound/soc/sof/intel/hda.c | 10 ++++------
sound/soc/sof/loader.c | 4 ++--
sound/soc/sof/ops.c | 2 +-
sound/soc/sof/sof-priv.h | 13 ++++++++-----
7 files changed, 30 insertions(+), 22 deletions(-)
--
2.29.2
This has a goto followed by an unreachable return statement. The goto
is correct because it cleans up so the current runtime behavior is fine.
Let's delete the unreachable return statement.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/X9NFg3KVm16Gx6Io@mwanda
Signed-off-by: Mark Brown <broonie@kernel.org>
Dan reported that smatch reports wrong size check and after analysis it
is confirmed that we are comparing wrong value: pointer size instead of
array size. However the check itself is problematic as in UAPI header
there are two fields:
struct snd_soc_tplg_enum_control {
(...)
char texts[SND_SOC_TPLG_NUM_TEXTS][SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
__le32 values[SND_SOC_TPLG_NUM_TEXTS * SNDRV_CTL_ELEM_ID_NAME_MAXLEN / 4];
the texts field is for names and the values one for values assigned to
those named fields, after analysis it becomes clear that there is quite
a lot overhead values than we may possibly name. So instead of changing
check to ARRAY_SIZE(ec->values), as it was first suggested, use
hardcoded value of SND_SOC_TPLG_NUM_TEXTS.
Link: https://lore.kernel.org/alsa-devel/X9B0eDcKy+9B6kZl@mwanda/
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20201210152541.191728-1-amadeuszx.slawinski@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
When we parse "values" we perform check if there is correct number of
them. However similar check is missing in case of "texts", add it.
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20201210152541.191728-2-amadeuszx.slawinski@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The condition boot_iteration == HDA_FW_BOOT_ATTEMPTS to determine
the log level for the DSP status dump would only work in the case of DSP
init failure after maximum number of attempts to initialize the DSP. If
DSP init succeeds in less than HDA_FW_BOOT_ATTEMPTS attempts and FW
loading fails, the ROM status dump would end up getting logged as debug
instead of an error.
So, add a new flag, SOF_DBG_DUMP_LOG_ERROR, to explicitly specify
the log level for DSP status dump.
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20201211100743.3188821-4-kai.vehmanen@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The SOF_DBG_* macros are used for dual purposes right now, for the
sof_core_debug module parameter and for the dbg_dump() ops. So, separate
these two types of flags into different types to avoid confusion.
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20201211100743.3188821-3-kai.vehmanen@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Remove the duplicate status dump in case DSP init fails. The core will
be powered down in this case and the status dump will be invalid anyway.
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20201211100743.3188821-2-kai.vehmanen@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
RT1015p needs 300ms delay after SDB pulling high for internal
calibration during the power on sequence.
Delays 300ms right before data sends out to avoid data truncated.
Assuming the calibration state gets lost after system suspend.
Signed-off-by: Tzung-Bi Shih <tzungbi@google.com>
Link: https://lore.kernel.org/r/20201211051224.2307349-3-tzungbi@google.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Moves SDB control from DAI ops trigger to DAPM. As long as BCLK
and LRCLK are ready, SDB can be toggled earlier.
Changes from using gpiod_set_value() to gpiod_set_value_cansleep()
because it executes in non-atomic context.
Signed-off-by: Tzung-Bi Shih <tzungbi@google.com>
Link: https://lore.kernel.org/r/20201211051224.2307349-2-tzungbi@google.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The error handling frees "ctl" but it's still on the "dsp->ctl_list"
list so that could result in a use after free. Remove it from the list
before returning.
Fixes: 2323736dca ("ASoC: wm_adsp: Add basic support for rev 1 firmware file format")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/X9B0keV/02wrx9Xs@mwanda
Signed-off-by: Mark Brown <broonie@kernel.org>
Document the missing properties which are currently required for
Tegra186/Tegra194 DT files.
Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/1607006202-4078-3-git-send-email-spujar@nvidia.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Add a driver for simple mux driven by gpios. It currently only supports one
gpio, muxing one of two inputs to a single output.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20201205001508.346439-2-alexandre.belloni@bootlin.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Expand SOF support for Alder Lake by adding ACPI machine tables
for ADL-S systems with SoundWire codecs. Modify kernel config
to choose SND_SOC_SOF_INTEL_SOUNDWIRE_LINK_BASELINE for these
platforms.
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20201209153102.3028310-2-kai.vehmanen@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Initial support for ADL w/ RT711
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20201209153102.3028310-1-kai.vehmanen@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Users reported that some Lenovo AMD platforms do not have ACP microphone,
but the BIOS advertises it via ACPI.
This patch create a simple DMI table, where those machines with the broken
BIOS can be added. The DMI description for Lenovo IdeaPad 5 and
IdeaPad Flex 5 devices are added there.
Also describe the dmic_acpi_check kernel module parameter in a more
understandable way.
Cc: <stable@kernel.org>
Cc: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Cc: Mark Brown <broonie@kernel.org>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20201208171200.2737620-1-perex@perex.cz
Signed-off-by: Mark Brown <broonie@kernel.org>
In some projects, the device ID register is not read correctly.
This patch helps to verify the issue is caused from i2c host or client.
Signed-off-by: Derek Fang <derek.fang@realtek.com>
Link: https://lore.kernel.org/r/20201209091308.2823-1-derek.fang@realtek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Cap-less mode is useful e.g. if the headphones are used as an antenna
for a FM radio, so that the signal is not altered. For everything else,
we want the cap-couple mode.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20201207125338.119397-5-paul@crapouillou.net
Signed-off-by: Mark Brown <broonie@kernel.org>
When using cap-coupled outputs, the RUP/RDO can take much longer than
the 100ms timeout we used to have. Increase that timeout to one second.
Signed-off-by: Christophe Branchereau <cbranchereau@gmail.com>
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20201207125338.119397-3-paul@crapouillou.net
Signed-off-by: Mark Brown <broonie@kernel.org>
In case a poll for RUP times out, we might be left with some IRQ flags
that should be cleared before the next power on.
Signed-off-by: Christophe Branchereau <cbranchereau@gmail.com>
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20201207125338.119397-2-paul@crapouillou.net
Signed-off-by: Mark Brown <broonie@kernel.org>
soc_pcm_trigger() calls DAI/Component/Link trigger,
but some of them might be failed.
static int soc_pcm_trigger(...)
{
...
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_RESUME:
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
ret = snd_soc_link_trigger(substream, cmd);
if (ret < 0)
break;
(*) ret = snd_soc_pcm_component_trigger(substream, cmd);
if (ret < 0)
break;
ret = snd_soc_pcm_dai_trigger(substream, cmd);
break;
case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_SUSPEND:
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
ret = snd_soc_pcm_dai_trigger(substream, cmd);
if (ret < 0)
break;
ret = snd_soc_pcm_component_trigger(substream, cmd);
if (ret < 0)
break;
ret = snd_soc_link_trigger(substream, cmd);
break;
}
...
}
For example, if soc_pcm_trigger() failed at (*) point,
we need to rollback previous succeeded trigger.
This patch adds trigger mark for DAI/Component/Link,
and do STOP if START/RESUME/PAUSE_RELEASE were failed.
Because it need to use new rollback parameter,
we need to modify DAI/Component/Link trigger functions in the same time.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87a6uycssd.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
dpcm_be_dai_trigger() is calling dpcm_do_trigger()
at each SNDRV_PCM_TRIGGER_xxx (1).
int dpcm_be_dai_trigger(...)
{
for_each_dpcm_be(fe, stream, dpcm) {
(B) ...
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
...
(1) ret = dpcm_do_trigger(...);
...
case SNDRV_PCM_TRIGGER_RESUME:
...
(1) ret = dpcm_do_trigger(...);
...
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
...
(1) ret = dpcm_do_trigger(...);
...
case SNDRV_PCM_TRIGGER_STOP:
...
(1) ret = dpcm_do_trigger(...);
...
case SNDRV_PCM_TRIGGER_SUSPEND:
...
(1) ret = dpcm_do_trigger(...);
...
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
...
(1) ret = dpcm_do_trigger(...);
...
}
}
}
But it is just very verbose and duplicated function.
Because We can indicate dev_dbg() (A) at dpcm_be_dai_trigger() (B).
And dev_err() (C) is not needed because soc_pcm_trigger() itself
indicates error message when error.
static int dpcm_do_trigger(...)
{
int ret;
(A) dev_dbg(...);
ret = soc_pcm_trigger(substream, cmd);
if (ret < 0)
(C) dev_err(...);
return ret;
}
This patch replace dpcm_do_trigger() to soc_pcm_trigger().
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87blfecssk.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
These error paths return success but they should return -EINVAL.
Fixes: 97ed3e509e ("ASoC: max98390: Fix potential crash during param fw loading")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/X9B0uz4svyNTqeMb@mwanda
Signed-off-by: Mark Brown <broonie@kernel.org>
Tha ARCHOS Cesium 140 tablet has problem with the jack-sensing,
thus the heaset functions are not working.
Add quirk for this model to select the correct input map, jack-detect
options and channel map to enable jack sensing and headset microphone.
This device uses IN1 for its internal MIC and JD2 for jack-detect.
Signed-off-by: Chris Chiu <chiu@endlessos.org>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20201208060414.27646-1-chiu@endlessos.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Hi All,
Here are 2 simple fixes which are necessary to make the
cht_bsw_nau8824 machine driver work together with the
sof-audio-acpi driver.
Note that atm the sof topology files are missing a .tplg
file for this setup. Simply copying over the standard
sof-byte-codec.tplg file does the trick, but then some
mixer setting changes are necessary to fix the right
speaker/headphones channel not working; and those mixer
settings break the right channel when used with the
sst-acpi driver.
I've been trying to fix this at the tplg level so that
we do not need to change the mixer settings, but no luck
sofar. I'll post a RFC with the topology changes which
I have and we can discuss this further there.
These 2 simple fixes are necessary to make the sof-audio-acpi
driver work regardless of the topology issue.
Regards,
Hans
cz_da7219_init() does not check the return values of clk_get(),
while da7219_clk_enable() calls clk_set_rate() to dereference
the pointers.
Add checks to fix the problems.
Also, change clk_get() to devm_clk_get() to avoid data leak after
failures.
Fixes: bb24a31ed5 ("ASoC: AMD: Configure wclk and bclk of master codec")
Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Link: https://lore.kernel.org/r/20201204063610.513556-1-hslester96@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The cx2072x codec driver defines multiple DAIs with the same stream
name "Playback" and "Capture". Although the current code works more
or less as is as the secondary streams are never used, it still leads
the error message like:
debugfs: File 'Playback' in directory 'dapm' already present!
debugfs: File 'Capture' in directory 'dapm' already present!
Fix it by renaming the secondary streams to unique names.
Fixes: a497a43637 ("ASoC: Add support for Conexant CX2072X CODEC")
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20201208135154.9188-1-tiwai@suse.de
Signed-off-by: Mark Brown <broonie@kernel.org>
The driver is initially designed for sound card using HDMI
interface on i.MX platform. There is internal HDMI IP or
external HDMI modules connect with SAI or AUD2HTX interface.
It supports both transmitter and receiver devices.
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Acked-by: Nicolin Chen <nicoleotsuka@gmail.com>
Link: https://lore.kernel.org/r/1607251319-5821-2-git-send-email-shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Imx-hdmi is a new added machine driver for supporting hdmi devices
on i.MX platforms. There is HDMI IP or external HDMI modules connect
with SAI or AUD2HTX interface.
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Link: https://lore.kernel.org/r/1607251319-5821-1-git-send-email-shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The snd-soc-sst-acpi driver does not care about the id specified for
the SSP2-Codec DAI, but it does matter for the snd-sof-acpi driver;
and when it is not 0 then the snd-sof-acpi driver does not work.
Set the SSP2-Codec DAI id to 0, fixing the snd-sof-acpi driver not
working on devices using the cht_bsw_nau8824 machine-driver.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20201206122436.13553-3-hdegoede@redhat.com
Signed-off-by: Mark Brown <broonie@kernel.org>
When using the snd-soc-sst-acpi driver then the compress-cpu-dai bits are
not used, the cht_bsw_nau8824 machine-driver is the only BYT/CHT driver
defining them.
When using the snd-sof-acpi driver then the presence of the
compress-cpu-dai bits breaks things because the sof topology file for
by/cht devices does not contain routing info for them.
Drop the compress-cpu-dai bits, fixing the snd-sof-acpi driver not
working on devices using the cht_bsw_nau8824 machine-driver.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20201206122436.13553-2-hdegoede@redhat.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The "filter" debugfs file defines the log levels used by
the firmware and reported by sof-logger.
The file contains the formatted entry list, where each entry
follows the following syntax in plain text:
log_level uuid_id pipe_id comp_id;
This file may be updated by userspace applications such sof-logger,
or directly by the user during debugging process.
An unused (wildcard) pipe_id or comp_id value should be set to -1,
uuid_id is hexadecimal value, so when unused then should be set to 0.
When the file is modified, an IPC command is sent to FW with new
trace levels for selected components in filter elements list.
Signed-off-by: Karol Trzcinski <karolx.trzcinski@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20201204165014.2697903-1-kai.vehmanen@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
A recent change removed the call to send the DAPM_STREAM_STOP
event in dpcm_fe_dai_shutdown. But this causes a regression
when a PCM prepare is not paired with a hw_free. So, add
the DAPM_STREAM_STOP event back to dpcm_fe_dai_shutdown()
to fix this.
The new sequence would be:
soc_pcm_prepare()
-> SND_SOC_DAPM_STREAM_START
soc_pcm_hw_free()
-> soc_pcm_hw_free()
-> SND_SOC_DAPM_STREAM_STOP
dpcm_fe_dai_shutdown()
-> SND_SOC_DAPM_STREAM_STOP
Note that the DAPM_STREAM_STOP will be called twice but it seems
harmless.
Fixes: a27b421f1d ('ASoC: pcm: call snd_soc_dapm_stream_stop() in soc_pcm_hw_clean')
Reported-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20201202193343.912942-1-ranjani.sridharan@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
When CONFIG_PM is disabled, we get a warning for unused functions:
sound/soc/fsl/fsl_aud2htx.c:261:12: error: unused function 'fsl_aud2htx_runtime_suspend' [-Werror,-Wunused-function]
static int fsl_aud2htx_runtime_suspend(struct device *dev)
sound/soc/fsl/fsl_aud2htx.c:271:12: error: unused function 'fsl_aud2htx_runtime_resume' [-Werror,-Wunused-function]
static int fsl_aud2htx_runtime_resume(struct device *dev)
Mark these as __maybe_unused to avoid the warning without adding
an #ifdef.
Fixes: 8a24c834c0 ("ASoC: fsl_aud2htx: Add aud2htx module driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Nicolin Chen <nicoleotsuka@gmail.com>
Link: https://lore.kernel.org/r/20201203222900.1042578-1-arnd@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
This patch adds the driver data for two rt1011 speaker amplifiers on
SSP1 and rt5682 on SSP0 for TGL platform. DAI format for rt1011 is
leveraged from cml_rt1011_rt5682 which is 4-slot tdm with 100fs bclk.
Signed-off-by: Brent Lu <brent.lu@intel.com>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20201203154010.29464-1-brent.lu@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Compile-testing this driver on an older platform without CONFIG_COMMON_CLK fails with
ERROR: modpost: "clk_set_min_rate" [sound/soc/atmel/snd-soc-mchp-spdifrx.ko] undefined!
Make this is a strict dependency.
Fixes: ef265c55c1 ("ASoC: mchp-spdifrx: add driver for SPDIF RX")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
Link: https://lore.kernel.org/r/20201203223815.1353451-1-arnd@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
gcc points out a memory area that is copied to a device
but not initialized:
sound/soc/codecs/cros_ec_codec.c: In function 'i2s_rx_event':
arch/x86/include/asm/string_32.h:83:20: error: '*((void *)&p+4)' may be used uninitialized in this function [-Werror=maybe-uninitialized]
83 | *((int *)to + 1) = *((int *)from + 1);
Initialize all the unused fields to zero.
Fixes: 727f1c71c7 ("ASoC: cros_ec_codec: refactor I2S RX")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Tzung-Bi Shih <tzungbi@google.com>
Link: https://lore.kernel.org/r/20201203225458.1477830-1-arnd@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
