February 2023 - Alsa-devel - mailman.alsa-project.org

[PATCH 1/2] ALSA: hda/realtek: fix mute/micmute LEDs don't work for a HP platform.
by Andy Chi 14 Feb '23

14 Feb '23

There is a HP platform needs ALC236_FIXUP_HP_GPIO_LED quirk to make mic-mute/audio-mute working. Signed-off-by: Andy Chi <andy.chi(a)canonical.com> --- sound/pci/hda/patch_realtek.c | 1 + 1 file changed, 1 insertion(+) diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 1134a493d225..7b9fb38ff732 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -9436,6 +9436,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = { SND_PCI_QUIRK(0x103c, 0x8b5e, "HP", ALC236_FIXUP_HP_MUTE_LED_MICMUTE_VREF), SND_PCI_QUIRK(0x103c, 0x8b7a, "HP", ALC236_FIXUP_HP_GPIO_LED), SND_PCI_QUIRK(0x103c, 0x8b7d, "HP", ALC236_FIXUP_HP_GPIO_LED), + SND_PCI_QUIRK(0x103c, 0x8b87, "HP", ALC236_FIXUP_HP_GPIO_LED), SND_PCI_QUIRK(0x103c, 0x8b8a, "HP", ALC236_FIXUP_HP_GPIO_LED), SND_PCI_QUIRK(0x103c, 0x8b8b, "HP", ALC236_FIXUP_HP_GPIO_LED), SND_PCI_QUIRK(0x103c, 0x8b8d, "HP", ALC236_FIXUP_HP_GPIO_LED), -- 2.34.1

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[PATCH] sound: soc: codec: tlv320adcx140: fix 'ti,gpio-config' DT property init
by Alexandru Ardelean 14 Feb '23

14 Feb '23

From: Steffen Aschbacher <steffen.aschbacher(a)stihl.de> When the 'ti,gpio-config' property is not defined, the device_property_count_u32() will return an error, rather than zero. The current check, only handles a return value of zero, which assumes that the property is defined and has no elements. This change extends the check to also handle for an error case (most likely to be hit by the case that the 'ti,gpio-config' is not defined). Semantically, this would be the same as 'device_property_count_u32()' returning zero. In case that 'ti,gpio-config' is defined, and returns a 'gpio_count' value that is incorrect, there is an 'if (gpio_count != ADCX140_NUM_GPIO_CFGS)' check, a few lines lower that will return -EINVAL. This means that someone tried to define 'ti,gpio-config', but with the wrong number of GPIOs. Signed-off-by: Steffen Aschbacher <steffen.aschbacher(a)stihl.de> Signed-off-by: Alexandru Ardelean <alex(a)shruggie.ro> --- sound/soc/codecs/tlv320adcx140.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/codecs/tlv320adcx140.c b/sound/soc/codecs/tlv320adcx140.c index 91a22d927915..530f321d08e9 100644 --- a/sound/soc/codecs/tlv320adcx140.c +++ b/sound/soc/codecs/tlv320adcx140.c @@ -925,7 +925,7 @@ static int adcx140_configure_gpio(struct adcx140_priv *adcx140) gpio_count = device_property_count_u32(adcx140->dev, "ti,gpio-config"); - if (gpio_count == 0) + if (gpio_count <= 0) return 0; if (gpio_count != ADCX140_NUM_GPIO_CFGS) -- 2.34.1

2 4

[PATCH V2 3/8] soundwire: amd: register soundwire manager dai ops
by Vijendar Mukunda 14 Feb '23

14 Feb '23

Register dai ops for soundwire manager instances. Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda(a)amd.com> --- drivers/soundwire/amd_manager.c | 182 ++++++++++++++++++++++++++++++ drivers/soundwire/amd_manager.h | 18 +++ include/linux/soundwire/sdw_amd.h | 18 +++ 3 files changed, 218 insertions(+) diff --git a/drivers/soundwire/amd_manager.c b/drivers/soundwire/amd_manager.c index cd1e5a3d5995..14c88b80ab6d 100644 --- a/drivers/soundwire/amd_manager.c +++ b/drivers/soundwire/amd_manager.c @@ -641,6 +641,182 @@ static const struct sdw_master_ops amd_sdw_ops = { .read_ping_status = amd_sdw_read_ping_status, }; +static int amd_sdw_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct amd_sdw_manager *amd_manager = snd_soc_dai_get_drvdata(dai); + struct sdw_amd_dai_runtime *dai_runtime; + struct sdw_stream_config sconfig; + struct sdw_port_config *pconfig; + int ch, dir; + int ret; + + dai_runtime = amd_manager->dai_runtime_array[dai->id]; + if (!dai_runtime) + return -EIO; + + ch = params_channels(params); + if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) + dir = SDW_DATA_DIR_RX; + else + dir = SDW_DATA_DIR_TX; + dev_dbg(amd_manager->dev, "%s: dir:%d dai->id:0x%x\n", __func__, dir, dai->id); + + sconfig.direction = dir; + sconfig.ch_count = ch; + sconfig.frame_rate = params_rate(params); + sconfig.type = dai_runtime->stream_type; + + sconfig.bps = snd_pcm_format_width(params_format(params)); + + /* Port configuration */ + pconfig = kzalloc(sizeof(*pconfig), GFP_KERNEL); + if (!pconfig) { + ret = -ENOMEM; + goto error; + } + + pconfig->num = dai->id; + pconfig->ch_mask = (1 << ch) - 1; + ret = sdw_stream_add_master(&amd_manager->bus, &sconfig, + pconfig, 1, dai_runtime->stream); + if (ret) + dev_err(amd_manager->dev, "add manager to stream failed:%d\n", ret); + + kfree(pconfig); +error: + return ret; +} + +static int amd_sdw_hw_free(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) +{ + struct amd_sdw_manager *amd_manager = snd_soc_dai_get_drvdata(dai); + struct sdw_amd_dai_runtime *dai_runtime; + int ret; + + dai_runtime = amd_manager->dai_runtime_array[dai->id]; + if (!dai_runtime) + return -EIO; + + ret = sdw_stream_remove_master(&amd_manager->bus, dai_runtime->stream); + if (ret < 0) + dev_err(dai->dev, "remove manager from stream %s failed: %d\n", + dai_runtime->stream->name, ret); + return ret; +} + +static int amd_set_sdw_stream(struct snd_soc_dai *dai, void *stream, int direction) +{ + struct amd_sdw_manager *amd_manager = snd_soc_dai_get_drvdata(dai); + struct sdw_amd_dai_runtime *dai_runtime; + + dai_runtime = amd_manager->dai_runtime_array[dai->id]; + if (stream) { + /* first paranoia check */ + if (dai_runtime) { + dev_err(dai->dev, + "dai_runtime already allocated for dai %s\n", + dai->name); + return -EINVAL; + } + + /* allocate and set dai_runtime info */ + dai_runtime = kzalloc(sizeof(*dai_runtime), GFP_KERNEL); + if (!dai_runtime) + return -ENOMEM; + + dai_runtime->stream_type = SDW_STREAM_PCM; + dai_runtime->bus = &amd_manager->bus; + dai_runtime->stream = stream; + amd_manager->dai_runtime_array[dai->id] = dai_runtime; + } else { + /* second paranoia check */ + if (!dai_runtime) { + dev_err(dai->dev, + "dai_runtime not allocated for dai %s\n", + dai->name); + return -EINVAL; + } + + /* for NULL stream we release allocated dai_runtime */ + kfree(dai_runtime); + amd_manager->dai_runtime_array[dai->id] = NULL; + } + return 0; +} + +static int amd_pcm_set_sdw_stream(struct snd_soc_dai *dai, void *stream, int direction) +{ + return amd_set_sdw_stream(dai, stream, direction); +} + +static void *amd_get_sdw_stream(struct snd_soc_dai *dai, int direction) +{ + struct amd_sdw_manager *amd_manager = snd_soc_dai_get_drvdata(dai); + struct sdw_amd_dai_runtime *dai_runtime; + + dai_runtime = amd_manager->dai_runtime_array[dai->id]; + if (!dai_runtime) + return ERR_PTR(-EINVAL); + + return dai_runtime->stream; +} + +static const struct snd_soc_dai_ops amd_sdw_dai_ops = { + .hw_params = amd_sdw_hw_params, + .hw_free = amd_sdw_hw_free, + .set_stream = amd_pcm_set_sdw_stream, + .get_stream = amd_get_sdw_stream, +}; + +static const struct snd_soc_component_driver amd_sdw_dai_component = { + .name = "soundwire", +}; + +static int amd_sdw_register_dais(struct amd_sdw_manager *amd_manager) +{ + struct sdw_amd_dai_runtime **dai_runtime_array; + struct snd_soc_dai_driver *dais; + struct snd_soc_pcm_stream *stream; + struct device *dev; + int i, num_dais; + + dev = amd_manager->dev; + num_dais = amd_manager->num_dout_ports + amd_manager->num_din_ports; + dais = devm_kcalloc(dev, num_dais, sizeof(*dais), GFP_KERNEL); + if (!dais) + return -ENOMEM; + + dai_runtime_array = devm_kcalloc(dev, num_dais, + sizeof(struct sdw_amd_dai_runtime *), + GFP_KERNEL); + if (!dai_runtime_array) + return -ENOMEM; + amd_manager->dai_runtime_array = dai_runtime_array; + for (i = 0; i < num_dais; i++) { + dais[i].name = devm_kasprintf(dev, GFP_KERNEL, "SDW%d Pin%d", amd_manager->instance, + i); + if (!dais[i].name) + return -ENOMEM; + if (i < amd_manager->num_dout_ports) + stream = &dais[i].playback; + else + stream = &dais[i].capture; + + stream->channels_min = 2; + stream->channels_max = 2; + stream->rates = SNDRV_PCM_RATE_48000; + stream->formats = SNDRV_PCM_FMTBIT_S16_LE; + + dais[i].ops = &amd_sdw_dai_ops; + dais[i].id = i; + } + + return devm_snd_soc_register_component(dev, &amd_sdw_dai_component, + dais, num_dais); +} + static void amd_sdw_probe_work(struct work_struct *work) { struct amd_sdw_manager *amd_manager = container_of(work, struct amd_sdw_manager, @@ -726,6 +902,12 @@ static int amd_sdw_manager_probe(struct platform_device *pdev) dev_err(dev, "Failed to register Soundwire manager(%d)\n", ret); return ret; } + ret = amd_sdw_register_dais(amd_manager); + if (ret) { + dev_err(dev, "CPU DAI registration failed\n"); + sdw_bus_master_delete(&amd_manager->bus); + return ret; + } dev_set_drvdata(dev, amd_manager); INIT_WORK(&amd_manager->probe_work, amd_sdw_probe_work); schedule_work(&amd_manager->probe_work); diff --git a/drivers/soundwire/amd_manager.h b/drivers/soundwire/amd_manager.h index 811ed9ee3d86..3e1bded1e769 100644 --- a/drivers/soundwire/amd_manager.h +++ b/drivers/soundwire/amd_manager.h @@ -205,6 +205,24 @@ struct sdw_manager_dp_reg { u32 lane_ctrl_ch_en_reg; }; +/* + * SDW0 Manager instance registers 6 CPU DAI (3 TX & 3 RX Ports) + * whereas SDW1 Manager Instance registers 2 CPU DAI (one TX & one RX port) + * Below is the CPU DAI <->Manager port number mapping + * i.e SDW0 Pin0 -> port number 0 -> AUDIO0 TX + * SDW0 Pin1 -> Port number 1 -> AUDIO1 TX + * SDW0 Pin2 -> Port number 2 -> AUDIO2 TX + * SDW0 Pin3 -> port number 3 -> AUDIO0 RX + * SDW0 Pin4 -> Port number 4 -> AUDIO1 RX + * SDW0 Pin5 -> Port number 5 -> AUDIO2 RX + * Whereas for SDW1 instance + * SDW1 Pin0 -> port number 0 -> AUDIO1 TX + * SDW1 Pin1 -> Port number 1 -> AUDIO1 RX + * Same mapping should be used for programming DMA controller registers in Soundwire DMA driver. + * i.e if AUDIO0 TX channel is selected then we need to use AUDIO0 TX registers for DMA programming + * in Soundwire DMA driver. + */ + static struct sdw_manager_dp_reg sdw0_manager_dp_reg[AMD_SDW0_MAX_DAI] = { {ACP_SW_AUDIO0_TX_FRAME_FORMAT, ACP_SW_AUDIO0_TX_SAMPLEINTERVAL, ACP_SW_AUDIO0_TX_HCTRL_DP0, ACP_SW_AUDIO0_TX_OFFSET_DP0, ACP_SW_AUDIO0_TX_CHANNEL_ENABLE_DP0}, diff --git a/include/linux/soundwire/sdw_amd.h b/include/linux/soundwire/sdw_amd.h index 922d30a540fd..c978cfbc0207 100644 --- a/include/linux/soundwire/sdw_amd.h +++ b/include/linux/soundwire/sdw_amd.h @@ -23,6 +23,21 @@ struct sdw_manager_reg_mask { u32 acp_sdw_intr_mask; }; +/** + * struct sdw_amd_dai_runtime: AMD sdw dai runtime data + * + * @name: SoundWire stream name + * @stream: stream runtime + * @bus: Bus handle + * @stream_type: Stream type + */ +struct sdw_amd_dai_runtime { + char *name; + struct sdw_stream_runtime *stream; + struct sdw_bus *bus; + enum sdw_stream_type stream_type; +}; + /** * struct amd_sdw_manager - amd manager driver context * @bus: bus handle @@ -40,6 +55,7 @@ struct sdw_manager_reg_mask { * @quirks: soundwire manager quirks * @wake_en_mask: wake enable mask per soundwire manager * @power_mode_mask: flag interprets amd soundwire manager power mode + * @dai_runtime_array: dai runtime array */ struct amd_sdw_manager { struct sdw_bus bus; @@ -63,5 +79,7 @@ struct amd_sdw_manager { u32 quirks; u32 wake_en_mask; u32 power_mode_mask; + + struct sdw_amd_dai_runtime **dai_runtime_array; }; #endif -- 2.34.1

3 2

remove arch/sh
by Christoph Hellwig 13 Feb '23

13 Feb '23

18 96

[PATCH 0/3][next] ASoC: codecs: Modify error implicit declaration of function and misspelling
by wangweidong.a＠awinic.com 13 Feb '23

13 Feb '23

From: Weidong Wang <wangweidong.a(a)awinic.com> Change the function name aw88395_plack_event to aw88395_playback_event Change hdrlen to hdr_len Add select GPIOLIB to the sound/soc/codecs/Kconfig file Weidong Wang (3): ASoC: codecs: Fixed a spelling error in the function name ASoC: codecs: Modify the log print statement ASoC: codecs: Modify error: implicit declaration of function 'gpiod_set_value_cansleep' sound/soc/codecs/Kconfig | 1 + sound/soc/codecs/aw88395/aw88395.c | 4 ++-- sound/soc/codecs/aw88395/aw88395_lib.c | 2 +- 3 files changed, 4 insertions(+), 3 deletions(-) base-commit: 6ba8a227fd19d19779005fb66ad7562608e1df83 -- 2.39.1

2 4

[PATCH -next] ASoC: codecs: Remove unneeded semicolon
by Yang Li 13 Feb '23

13 Feb '23

./sound/soc/codecs/peb2466.c:1851:2-3: Unneeded semicolon ./sound/soc/codecs/peb2466.c:1887:2-3: Unneeded semicolon Reported-by: Abaci Robot <abaci(a)linux.alibaba.com> Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=4045 Signed-off-by: Yang Li <yang.lee(a)linux.alibaba.com> --- sound/soc/codecs/peb2466.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/sound/soc/codecs/peb2466.c b/sound/soc/codecs/peb2466.c index 4640b1860312..5dec69be0acb 100644 --- a/sound/soc/codecs/peb2466.c +++ b/sound/soc/codecs/peb2466.c @@ -1848,7 +1848,7 @@ static int peb2466_chip_direction_input(struct gpio_chip *c, unsigned int offset if (offset < 16) { /* SOx_{0,1} */ return -EINVAL; - }; + } ret = peb2466_chip_gpio_offset_to_dir_regmask(offset, &xr_reg, &mask); if (ret) { @@ -1884,7 +1884,7 @@ static int peb2466_chip_direction_output(struct gpio_chip *c, unsigned int offse if (offset < 16) { /* SOx_{0,1} */ return 0; - }; + } ret = peb2466_chip_gpio_offset_to_dir_regmask(offset, &xr_reg, &mask); if (ret) { -- 2.20.1.7.g153144c

3 2

[PATCH] ASoC: ep93xx: ignore 0 Hz sysclk
by Alexander Sverdlin 13 Feb '23

13 Feb '23

Commit 2458adb8f92a ("SoC: simple-card-utils: set 0Hz to sysclk when shutdown") added a call to snd_soc_dai_set_sysclk() with 0 Hz frequency. Being propagated further it causes a division by zero in clk-ep93xx driver: Division by zero in kernel. CPU: 0 PID: 52 Comm: aplay Tainted: G W 6.2.0-rc4-... #1 Hardware name: Generic DT based system unwind_backtrace from show_stack+0x10/0x18 show_stack from dump_stack_lvl+0x28/0x34 dump_stack_lvl from __div0+0x10/0x1c __div0 from Ldiv0+0x8/0x1c Ldiv0 from ep93xx_mux_determine_rate+0x78/0x1d0 ep93xx_mux_determine_rate from clk_core_round_rate_nolock+0x48/0xc8 clk_core_round_rate_nolock from clk_core_set_rate_nolock+0x48/0x160 clk_core_set_rate_nolock from clk_set_rate+0x30/0x8c clk_set_rate from ep93xx_i2s_set_sysclk+0x30/0x6c ep93xx_i2s_set_sysclk from snd_soc_dai_set_sysclk+0x3c/0xa4 snd_soc_dai_set_sysclk from asoc_simple_shutdown+0xb8/0x164 asoc_simple_shutdown from snd_soc_link_shutdown+0x44/0x54 snd_soc_link_shutdown from soc_pcm_clean+0x78/0x180 soc_pcm_clean from soc_pcm_close+0x28/0x40 soc_pcm_close from snd_pcm_release_substream.part.0+0x3c/0x84 snd_pcm_release_substream.part.0 from snd_pcm_release+0x40/0x88 snd_pcm_release from __fput+0x74/0x278 There has been commit f1879d7b98dc ("ASoC: rockchip: ignore 0Hz sysclk"), but it prepared by far not all drivers. Signed-off-by: Alexander Sverdlin <alexander.sverdlin(a)gmail.com> --- sound/soc/cirrus/ep93xx-i2s.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sound/soc/cirrus/ep93xx-i2s.c b/sound/soc/cirrus/ep93xx-i2s.c index 982151330c89..f41712df7994 100644 --- a/sound/soc/cirrus/ep93xx-i2s.c +++ b/sound/soc/cirrus/ep93xx-i2s.c @@ -359,6 +359,8 @@ static int ep93xx_i2s_set_sysclk(struct snd_soc_dai *cpu_dai, int clk_id, if (dir == SND_SOC_CLOCK_IN || clk_id != 0) return -EINVAL; + if (!freq) + return 0; return clk_set_rate(info->mclk, freq); } -- 2.39.1

2 1

[PATCH] ASoC: dt-bindings: maxim,max98095: Convert to dtschema
by Krzysztof Kozlowski 13 Feb '23

13 Feb '23

Convert the Maxim Integrated MAX98095 audio codec bindings to DT schema. Add missing sound-dai-cells during conversion. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski(a)linaro.org> --- .../devicetree/bindings/sound/max98095.txt | 22 -------- .../bindings/sound/maxim,max98095.yaml | 54 +++++++++++++++++++ 2 files changed, 54 insertions(+), 22 deletions(-) delete mode 100644 Documentation/devicetree/bindings/sound/max98095.txt create mode 100644 Documentation/devicetree/bindings/sound/maxim,max98095.yaml diff --git a/Documentation/devicetree/bindings/sound/max98095.txt b/Documentation/devicetree/bindings/sound/max98095.txt deleted file mode 100644 index 318a4c82f17f..000000000000 --- a/Documentation/devicetree/bindings/sound/max98095.txt +++ /dev/null @@ -1,22 +0,0 @@ -MAX98095 audio CODEC - -This device supports I2C only. - -Required properties: - -- compatible : "maxim,max98095". - -- reg : The I2C address of the device. - -Optional properties: - -- clocks: The phandle of the master clock to the CODEC - -- clock-names: Should be "mclk" - -Example: - -max98095: codec@11 { - compatible = "maxim,max98095"; - reg = <0x11>; -}; diff --git a/Documentation/devicetree/bindings/sound/maxim,max98095.yaml b/Documentation/devicetree/bindings/sound/maxim,max98095.yaml new file mode 100644 index 000000000000..77544a9e1587 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/maxim,max98095.yaml @@ -0,0 +1,54 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/sound/maxim,max98095.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Maxim Integrated MAX98095 audio codec + +maintainers: + - Krzysztof Kozlowski <krzysztof.kozlowski(a)linaro.org> + +allOf: + - $ref: dai-common.yaml# + +properties: + compatible: + enum: + - maxim,max98095 + + reg: + maxItems: 1 + + clocks: + items: + - description: master clock + + clock-names: + items: + - const: mclk + + '#sound-dai-cells': + const: 1 + +required: + - compatible + - reg + +unevaluatedProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/irq.h> + + i2c { + #address-cells = <1>; + #size-cells = <0>; + + audio-codec@11 { + compatible = "maxim,max98095"; + reg = <0x11>; + clocks = <&i2s0 0>; + clock-names = "mclk"; + }; + }; -- 2.34.1

2 1

[PATCH] ALSA: hda: Fix codec device field initializan
by Cezary Rojewski 13 Feb '23

13 Feb '23

Commit f2bd1c5ae2cb ("ALSA: hda: Fix page fault in snd_hda_codec_shutdown()") relocated initialization of several codec device fields. Due to differences between codec_exec_verb() and snd_hdac_bus_exec_bus() in how they handle VERB execution - the latter does not touch PM - assigning ->exec_verb to codec_exec_verb() causes PM to be engaged before it is configured for the device. Configuration of PM for the ASoC HDAudio sound card is done with snd_hda_set_power_save() during skl_hda_audio_probe() whereas the assignment happens early, in snd_hda_codec_device_init(). Revert to previous behavior to avoid problems caused by too early PM manipulation. Suggested-by: Jason Montleon <jmontleo(a)redhat.com> Link: https://lore.kernel.org/regressions/CALFERdzKUodLsm6=Ub3g2+PxpNpPtPq3bGBLbf… Fixes: f2bd1c5ae2cb ("ALSA: hda: Fix page fault in snd_hda_codec_shutdown()") Signed-off-by: Cezary Rojewski <cezary.rojewski(a)intel.com> --- A result of recent discussion [1] regarding sound regression in v6.1 and onward. Fix made possible by outstanding input from Jason and Sasa (Cced) - Thank you! Note: I did not receive results from our CI yet, should happen on Monday but posting early so the review can be conducted. [1]: https://lore.kernel.org/regressions/CALFERdzKUodLsm6=Ub3g2+PxpNpPtPq3bGBLbf… sound/pci/hda/hda_codec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index ac1cc7c5290e..2e728aad6771 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -927,7 +927,6 @@ snd_hda_codec_device_init(struct hda_bus *bus, unsigned int codec_addr, codec->depop_delay = -1; codec->fixup_id = HDA_FIXUP_ID_NOT_SET; codec->core.dev.release = snd_hda_codec_dev_release; - codec->core.exec_verb = codec_exec_verb; codec->core.type = HDA_DEV_LEGACY; mutex_init(&codec->spdif_mutex); @@ -998,6 +997,7 @@ int snd_hda_codec_device_new(struct hda_bus *bus, struct snd_card *card, if (snd_BUG_ON(codec_addr > HDA_MAX_CODEC_ADDRESS)) return -EINVAL; + codec->core.exec_verb = codec_exec_verb; codec->card = card; codec->addr = codec_addr; -- 2.25.1

2 2

[PATCH] ASoC: Intel: Skylake: Replace 1-element array with flex-array
by Kees Cook 13 Feb '23

13 Feb '23

The kernel is globally removing the ambiguous 0-length and 1-element arrays in favor of flexible arrays, so that we can gain both compile-time and run-time array bounds checking[1]. In this instance, struct skl_cpr_cfg contains struct skl_cpr_gtw_cfg, which defined "config_data" as a 1-element array. Normally when switching from a 1-element array to a flex-array, any related size calculations must be adjusted too. However, it seems the original code was over-allocating space, since 1 extra u32 would be included by the sizeof(): param_size = sizeof(struct skl_cpr_cfg); param_size += mconfig->formats_config[SKL_PARAM_INIT].caps_size; But the copy uses caps_size bytes, and cap_size / 4 (i.e. sizeof(u32)) for the length tracking: memcpy(cpr_mconfig->gtw_cfg.config_data, mconfig->formats_config[SKL_PARAM_INIT].caps, mconfig->formats_config[SKL_PARAM_INIT].caps_size); cpr_mconfig->gtw_cfg.config_length = (mconfig->formats_config[SKL_PARAM_INIT].caps_size) / 4; Therefore, no size calculations need adjusting. Change the struct skl_cpr_gtw_cfg config_data member to be a true flexible array, which also fixes the over-allocation, and silences this memcpy run-time false positive: memcpy: detected field-spanning write (size 100) of single field "cpr_mconfig->gtw_cfg.config_data" at sound/soc/intel/skylake/skl-messages.c:554 (size 4) [1] For lots of details, see both: https://docs.kernel.org/process/deprecated.html#zero-length-and-one-element… https://people.kernel.org/kees/bounded-flexible-arrays-in-c Reported-by: Sasa Ostrouska <casaxa(a)gmail.com> Link: https://lore.kernel.org/all/CALFERdwvq5day_sbDfiUsMSZCQu9HG8-SBpOZDNPeMdZGo… Cc: Cezary Rojewski <cezary.rojewski(a)intel.com> Cc: Pierre-Louis Bossart <pierre-louis.bossart(a)linux.intel.com> Cc: Liam Girdwood <liam.r.girdwood(a)linux.intel.com> Cc: Peter Ujfalusi <peter.ujfalusi(a)linux.intel.com> Cc: Bard Liao <yung-chuan.liao(a)linux.intel.com> Cc: Ranjani Sridharan <ranjani.sridharan(a)linux.intel.com> Cc: Kai Vehmanen <kai.vehmanen(a)linux.intel.com> Cc: Mark Brown <broonie(a)kernel.org> Cc: Jaroslav Kysela <perex(a)perex.cz> Cc: Takashi Iwai <tiwai(a)suse.com> Cc: "Gustavo A. R. Silva" <gustavoars(a)kernel.org> Cc: "Amadeusz Sławiński" <amadeuszx.slawinski(a)linux.intel.com> Cc: alsa-devel(a)alsa-project.org Signed-off-by: Kees Cook <keescook(a)chromium.org> --- sound/soc/intel/skylake/skl-topology.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/intel/skylake/skl-topology.h b/sound/soc/intel/skylake/skl-topology.h index 6db0fd7bad49..ad94f8020c27 100644 --- a/sound/soc/intel/skylake/skl-topology.h +++ b/sound/soc/intel/skylake/skl-topology.h @@ -115,7 +115,7 @@ struct skl_cpr_gtw_cfg { u32 dma_buffer_size; u32 config_length; /* not mandatory; required only for DMIC/I2S */ - u32 config_data[1]; + u32 config_data[]; } __packed; struct skl_dma_control { -- 2.34.1

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