May 2017 - Alsa-devel - mailman.alsa-project.org

[alsa-devel] [PATCH v4 0/3] ASoC: Add STM32 I2S support
by olivier moysan 23 May '17

23 May '17

This patch-set handles the SPI/I2S IP on STM32 platforms. It applies to STM32 platforms implementing version 2 of SPI/I2S IP like STM32H7 series. The SPI/I2S block is a serial peripheral interface (SPI), which can also be configured to work on I2S/PCM mode. ASoC STM32 I2S driver only supports this I2S/PCM mode. The I2S/PCM interface can either support full duplex or half-duplex communication (transmitter or receiver only). The change of mode requires to stop the interface. This means that the two audio paths cannot be basically managed independently. The driver supports playback and capture through a single bidirectionnal DAI. In the first version of the driver, playback and capture paths are made mutually exclusive. A second patch introduces support of full duplex mode. In this implementation the interface is systematically configured in full-duplex mode from hardware point of view. So, when managing a single audio path, the interface is not configured as transmit or receive only, as it should be. This restriction is handled by masking underrun/overrun errors from the unused path. The I2S/PCM interface supports four audio standards: I2S Philips standard, MSB justified standard, LSB justified standard, PCM standard PCM standard is declined in two versions, PCM short and long, according frame synchronization duration. These standards can be mapped to ASoC standards as follows: - I2S: i2s - MSB justified standard: left_j - LSB justified standard: right_j - PCM short: dsp_a PCM long format is not exposed as it does not match supported ASoC standards. v3 -> v4 - update example in dt bindings olivier moysan (3): dt-bindings: Document STM32 I2S bindings ASoC: stm32: Add I2S driver ASoC: stm32: Add full duplex support to i2s .../devicetree/bindings/sound/st,stm32-i2s.txt | 62 ++ sound/soc/stm/Kconfig | 2 +- sound/soc/stm/Makefile | 4 + sound/soc/stm/stm32_i2s.c | 946 +++++++++++++++++++++ 4 files changed, 1013 insertions(+), 1 deletion(-) create mode 100644 Documentation/devicetree/bindings/sound/st,stm32-i2s.txt create mode 100644 sound/soc/stm/stm32_i2s.c -- 1.9.1

3 7

[alsa-devel] [PATCH] ALSA: gus: remove unused local flag
by Takashi Sakamoto 23 May '17

23 May '17

ALSA driver series for devices of Gravis Ultra Sound includes local variable 'snd_gf1_pcm_use_dma'. Although this is a flag to change behaviours of local implementations for 'struct snd_pcm_ops.copy' and 'struct snd_pcm_ops.silence', it's invariable during module lifetime. This commit removes this local variable and the relevant operations. Signed-off-by: Takashi Sakamoto <o-takashi(a)sakamocchi.jp> --- sound/isa/gus/gus_pcm.c | 49 ++++++++++++++++++++++--------------------------- 1 file changed, 22 insertions(+), 27 deletions(-) diff --git a/sound/isa/gus/gus_pcm.c b/sound/isa/gus/gus_pcm.c index 33c1891f469a..0cc3f272edf1 100644 --- a/sound/isa/gus/gus_pcm.c +++ b/sound/isa/gus/gus_pcm.c @@ -61,8 +61,6 @@ struct gus_pcm_private { int final_volume; }; -static int snd_gf1_pcm_use_dma = 1; - static void snd_gf1_pcm_block_change_ack(struct snd_gus_card * gus, void *private_data) { struct gus_pcm_private *pcmp = private_data; @@ -363,7 +361,9 @@ static int snd_gf1_pcm_playback_copy(struct snd_pcm_substream *substream, { struct snd_pcm_runtime *runtime = substream->runtime; struct gus_pcm_private *pcmp = runtime->private_data; + struct snd_gus_card *gus = pcmp->gus; unsigned int bpos, len; + int w16, invert; bpos = samples_to_bytes(runtime, pos) + (voice * (pcmp->dma_size / 2)); len = samples_to_bytes(runtime, count); @@ -373,18 +373,14 @@ static int snd_gf1_pcm_playback_copy(struct snd_pcm_substream *substream, return -EIO; if (copy_from_user(runtime->dma_area + bpos, src, len)) return -EFAULT; - if (snd_gf1_pcm_use_dma && len > 32) { - return snd_gf1_pcm_block_change(substream, bpos, pcmp->memory + bpos, len); - } else { - struct snd_gus_card *gus = pcmp->gus; - int err, w16, invert; - - w16 = (snd_pcm_format_width(runtime->format) == 16); - invert = snd_pcm_format_unsigned(runtime->format); - if ((err = snd_gf1_pcm_poke_block(gus, runtime->dma_area + bpos, pcmp->memory + bpos, len, w16, invert)) < 0) - return err; - } - return 0; + if (len > 32) + return snd_gf1_pcm_block_change(substream, bpos, + pcmp->memory + bpos, len); + + w16 = (snd_pcm_format_width(runtime->format) == 16); + invert = snd_pcm_format_unsigned(runtime->format); + return snd_gf1_pcm_poke_block(gus, runtime->dma_area + bpos, + pcmp->memory + bpos, len, w16, invert); } static int snd_gf1_pcm_playback_silence(struct snd_pcm_substream *substream, @@ -394,7 +390,9 @@ static int snd_gf1_pcm_playback_silence(struct snd_pcm_substream *substream, { struct snd_pcm_runtime *runtime = substream->runtime; struct gus_pcm_private *pcmp = runtime->private_data; + struct snd_gus_card *gus = pcmp->gus; unsigned int bpos, len; + int w16, invert; bpos = samples_to_bytes(runtime, pos) + (voice * (pcmp->dma_size / 2)); len = samples_to_bytes(runtime, count); @@ -402,19 +400,16 @@ static int snd_gf1_pcm_playback_silence(struct snd_pcm_substream *substream, return -EIO; if (snd_BUG_ON(bpos + len > pcmp->dma_size)) return -EIO; - snd_pcm_format_set_silence(runtime->format, runtime->dma_area + bpos, count); - if (snd_gf1_pcm_use_dma && len > 32) { - return snd_gf1_pcm_block_change(substream, bpos, pcmp->memory + bpos, len); - } else { - struct snd_gus_card *gus = pcmp->gus; - int err, w16, invert; - - w16 = (snd_pcm_format_width(runtime->format) == 16); - invert = snd_pcm_format_unsigned(runtime->format); - if ((err = snd_gf1_pcm_poke_block(gus, runtime->dma_area + bpos, pcmp->memory + bpos, len, w16, invert)) < 0) - return err; - } - return 0; + snd_pcm_format_set_silence(runtime->format, runtime->dma_area + bpos, + count); + if (len > 32) + return snd_gf1_pcm_block_change(substream, bpos, + pcmp->memory + bpos, len); + + w16 = (snd_pcm_format_width(runtime->format) == 16); + invert = snd_pcm_format_unsigned(runtime->format); + return snd_gf1_pcm_poke_block(gus, runtime->dma_area + bpos, + pcmp->memory + bpos, len, w16, invert); } static int snd_gf1_pcm_playback_hw_params(struct snd_pcm_substream *substream, -- 2.11.0

2 1

[alsa-devel] [RESEND PATCH] ASoC: da7218: Fix incorrect usage of bitwise '&' operator for SRM check
by Adam Thomson 23 May '17

23 May '17

In the SRM lock check section of code the '&' bitwise operator is used as part of checking lock status. Functionally the code works as intended, but the conditional statement is a boolean comparison so should really use '&&' logical operator instead. This commit rectifies this discrepancy. Signed-off-by: Adam Thomson <Adam.Thomson.Opensource(a)diasemi.com> Reviewed-by: Takashi Sakamoto <o-takashi(a)sakamocchi.jp> --- sound/soc/codecs/da7218.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/codecs/da7218.c b/sound/soc/codecs/da7218.c index d256ebf..6e1940e 100644 --- a/sound/soc/codecs/da7218.c +++ b/sound/soc/codecs/da7218.c @@ -1457,7 +1457,7 @@ static int da7218_dai_event(struct snd_soc_dapm_widget *w, ++i; msleep(DA7218_SRM_CHECK_DELAY); } - } while ((i < DA7218_SRM_CHECK_TRIES) & (!success)); + } while ((i < DA7218_SRM_CHECK_TRIES) && (!success)); if (!success) dev_warn(codec->dev, "SRM failed to lock\n"); -- 1.9.1

1 0

[alsa-devel] [PATCH 0/4] ALSA: Extend PCM buffer-copy helpers
by Takashi Iwai 23 May '17

23 May '17

Hop, step... before jump. This is a patch series based on the previous one ("[PATCH 00/16] ALSA: Convert to new copy_silence PCM ops"), as the second step for killing set_fs(). It extends the PCM buffer-copy helper functions to allow in-kernel buffer copy via the new PCM ops, as well as some code refactoring. Once when these are implemented, the set_fs() can be eliminated by simply replacing with these new helpers. The latest patches are found in topic/kill-set_fs branch in sound git tree. Takashi === Takashi Iwai (4): ALSA: pcm: Shuffle code ALSA: pcm: Call directly the common read/write helpers ALSA: pcm: Provide read/write helpers for in-kernel buffer transfer ALSA: pcm: Split PCM transfer codes include/sound/pcm.h | 81 ++++++++-- sound/core/pcm_lib.c | 410 ++++++++++++++++++++++++++------------------------- 2 files changed, 282 insertions(+), 209 deletions(-) -- 2.13.0

1 4

[alsa-devel] [PATCH] ALSA: hda - apply STAC_9200_DELL_M22 quirk for Dell Latitude D430
by Alexander Tsoy 23 May '17

23 May '17

This model is actually called 92XXM2-8 in Windows driver. But since pin configs for M22 and M28 are identical, just reuse M22 quirk. Fixes external microphone (tested) and probably docking station ports (not tested). Signed-off-by: Alexander Tsoy <alexander(a)tsoy.me> --- sound/pci/hda/patch_sigmatel.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c index faa3d38bac0b..6cefdf6c0b75 100644 --- a/sound/pci/hda/patch_sigmatel.c +++ b/sound/pci/hda/patch_sigmatel.c @@ -1559,6 +1559,8 @@ static const struct snd_pci_quirk stac9200_fixup_tbl[] = { "Dell Inspiron 1501", STAC_9200_DELL_M26), SND_PCI_QUIRK(PCI_VENDOR_ID_DELL, 0x01f6, "unknown Dell", STAC_9200_DELL_M26), + SND_PCI_QUIRK(PCI_VENDOR_ID_DELL, 0x0201, + "Dell Latitude D430", STAC_9200_DELL_M22), /* Panasonic */ SND_PCI_QUIRK(0x10f7, 0x8338, "Panasonic CF-74", STAC_9200_PANASONIC), /* Gateway machines needs EAPD to be set on resume */ -- 2.13.0

2 1

[alsa-devel] [PATCH] ALSA: pcm: Remove set_fs() in PCM core code
by Takashi Iwai 23 May '17

23 May '17

PCM core code has a few usages of set_fs(), mostly for two codepaths: - The DELAY ioctl call from pcm_compat.c - The ioctl wrapper in kernel context for PCM OSS and other This patch removes the set_fs() usage in these places by a slight code refactoring. For the former point, snd_pcm_delay() is changed to return the value directly instead of putting the value to the given address. Each caller stores the result in an appropriate manner. For fixing the latter, snd_pcm_lib_kernel_ioctl() is changed to call the functions directly as well. For achieving it, now the function accepts only the limited set of ioctls that have been used, so far. The primary user of this function is the PCM OSS layer, and the only other user is USB UAC1 gadget driver. Both drivers don't need the full set of ioctls. Signed-off-by: Takashi Iwai <tiwai(a)suse.de> --- sound/core/pcm_compat.c | 12 ++---- sound/core/pcm_native.c | 102 ++++++++++++++++++++++++++++++------------------ 2 files changed, 67 insertions(+), 47 deletions(-) diff --git a/sound/core/pcm_compat.c b/sound/core/pcm_compat.c index 1f64ab0c2a95..8a0f8d51e95d 100644 --- a/sound/core/pcm_compat.c +++ b/sound/core/pcm_compat.c @@ -27,17 +27,13 @@ static int snd_pcm_ioctl_delay_compat(struct snd_pcm_substream *substream, s32 __user *src) { snd_pcm_sframes_t delay; - mm_segment_t fs; - int err; - fs = snd_enter_user(); - err = snd_pcm_delay(substream, &delay); - snd_leave_user(fs); - if (err < 0) - return err; + delay = snd_pcm_delay(substream); + if (delay < 0) + return delay; if (put_user(delay, src)) return -EFAULT; - return err; + return 0; } static int snd_pcm_ioctl_rewind_compat(struct snd_pcm_substream *substream, diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c index f3a3580eb44c..c6de8976fbd6 100644 --- a/sound/core/pcm_native.c +++ b/sound/core/pcm_native.c @@ -181,20 +181,6 @@ void snd_pcm_stream_unlock_irqrestore(struct snd_pcm_substream *substream, } EXPORT_SYMBOL_GPL(snd_pcm_stream_unlock_irqrestore); -static inline mm_segment_t snd_enter_user(void) -{ - mm_segment_t fs = get_fs(); - set_fs(get_ds()); - return fs; -} - -static inline void snd_leave_user(mm_segment_t fs) -{ - set_fs(fs); -} - - - int snd_pcm_info(struct snd_pcm_substream *substream, struct snd_pcm_info *info) { struct snd_pcm_runtime *runtime; @@ -1081,6 +1067,7 @@ static const struct action_ops snd_pcm_action_start = { * @substream: the PCM substream instance * * Return: Zero if successful, or a negative error code. + * The stream lock must be acquired before calling this function. */ int snd_pcm_start(struct snd_pcm_substream *substream) { @@ -1088,6 +1075,13 @@ int snd_pcm_start(struct snd_pcm_substream *substream) SNDRV_PCM_STATE_RUNNING); } +/* take the stream lock and start the streams */ +static int snd_pcm_start_lock_irq(struct snd_pcm_substream *substream) +{ + return snd_pcm_action_lock_irq(&snd_pcm_action_start, substream, + SNDRV_PCM_STATE_RUNNING); +} + /* * stop callbacks */ @@ -2658,8 +2652,7 @@ static int snd_pcm_hwsync(struct snd_pcm_substream *substream) return err; } -static int snd_pcm_delay(struct snd_pcm_substream *substream, - snd_pcm_sframes_t __user *res) +static snd_pcm_sframes_t snd_pcm_delay(struct snd_pcm_substream *substream) { struct snd_pcm_runtime *runtime = substream->runtime; int err; @@ -2693,10 +2686,7 @@ static int snd_pcm_delay(struct snd_pcm_substream *substream, break; } snd_pcm_stream_unlock_irq(substream); - if (!err) - if (put_user(n, res)) - err = -EFAULT; - return err; + return err < 0 ? err : n; } static int snd_pcm_sync_ptr(struct snd_pcm_substream *substream, @@ -2784,7 +2774,7 @@ static int snd_pcm_common_ioctl1(struct file *file, case SNDRV_PCM_IOCTL_RESET: return snd_pcm_reset(substream); case SNDRV_PCM_IOCTL_START: - return snd_pcm_action_lock_irq(&snd_pcm_action_start, substream, SNDRV_PCM_STATE_RUNNING); + return snd_pcm_start_lock_irq(substream); case SNDRV_PCM_IOCTL_LINK: return snd_pcm_link(substream, (int)(unsigned long) arg); case SNDRV_PCM_IOCTL_UNLINK: @@ -2796,7 +2786,16 @@ static int snd_pcm_common_ioctl1(struct file *file, case SNDRV_PCM_IOCTL_HWSYNC: return snd_pcm_hwsync(substream); case SNDRV_PCM_IOCTL_DELAY: - return snd_pcm_delay(substream, arg); + { + snd_pcm_sframes_t delay = snd_pcm_delay(substream); + snd_pcm_sframes_t __user *res = arg; + + if (delay < 0) + return delay; + if (put_user(delay, res)) + return -EFAULT; + return 0; + } case SNDRV_PCM_IOCTL_SYNC_PTR: return snd_pcm_sync_ptr(substream, arg); #ifdef CONFIG_SND_SUPPORT_OLD_API @@ -3010,30 +3009,55 @@ static long snd_pcm_capture_ioctl(struct file *file, unsigned int cmd, (void __user *)arg); } +/** + * snd_pcm_kernel_ioctl - Execute PCM ioctl in the kernel-space + * @substream: PCM substream + * @cmd: IOCTL cmd + * @arg: IOCTL argument + * + * The function is provided primarily for OSS layer and USB gadget drivers, + * and it allows only the limited set of ioctls (hw_params, sw_params, + * prepare, start, drain, drop, forward). + */ int snd_pcm_kernel_ioctl(struct snd_pcm_substream *substream, unsigned int cmd, void *arg) { - mm_segment_t fs; - int result; + snd_pcm_uframes_t *frames = arg; + snd_pcm_sframes_t result; - fs = snd_enter_user(); - switch (substream->stream) { - case SNDRV_PCM_STREAM_PLAYBACK: - result = snd_pcm_playback_ioctl1(NULL, substream, cmd, - (void __user *)arg); - break; - case SNDRV_PCM_STREAM_CAPTURE: - result = snd_pcm_capture_ioctl1(NULL, substream, cmd, - (void __user *)arg); - break; + switch (cmd) { + case SNDRV_PCM_IOCTL_FORWARD: + { + /* provided only for OSS; capture-only and no value returned */ + if (substream->stream != SNDRV_PCM_STREAM_CAPTURE) + return -EINVAL; + result = snd_pcm_capture_forward(substream, *frames); + return result < 0 ? result : 0; + } + case SNDRV_PCM_IOCTL_HW_PARAMS: + return snd_pcm_hw_params(substream, arg); + case SNDRV_PCM_IOCTL_SW_PARAMS: + return snd_pcm_sw_params(substream, arg); + case SNDRV_PCM_IOCTL_PREPARE: + return snd_pcm_prepare(substream, NULL); + case SNDRV_PCM_IOCTL_START: + return snd_pcm_start_lock_irq(substream); + case SNDRV_PCM_IOCTL_DRAIN: + return snd_pcm_drain(substream, NULL); + case SNDRV_PCM_IOCTL_DROP: + return snd_pcm_drop(substream); + case SNDRV_PCM_IOCTL_DELAY: + { + result = snd_pcm_delay(substream); + if (result < 0) + return result; + *frames = result; + return 0; + } default: - result = -EINVAL; - break; + return -EINVAL; } - snd_leave_user(fs); - return result; } - EXPORT_SYMBOL(snd_pcm_kernel_ioctl); static ssize_t snd_pcm_read(struct file *file, char __user *buf, size_t count, -- 2.13.0

2 1

[alsa-devel] [PATCH] ALSA: control: Simplify snd_ctl_elem_list() implementation
by Takashi Iwai 22 May '17

22 May '17

This patch simplifies the code of snd_ctl_elem_list() in the following ways: - Avoid a vmalloc() temporary buffer but do copy in each iteration; the vmalloc buffer was introduced at the time we took the spinlock for the ctl element management. - Use the standard list_for_each_entry() macro - Merge two loops into one; it used to be a loop for skipping until offset becomes zero and another loop to copy the data. They can be folded into a single loop easily. Signed-off-by: Takashi Iwai <tiwai(a)suse.de> --- sound/core/control.c | 66 +++++++++++++++++++--------------------------------- 1 file changed, 24 insertions(+), 42 deletions(-) diff --git a/sound/core/control.c b/sound/core/control.c index c109b82eef4b..47080da8451a 100644 --- a/sound/core/control.c +++ b/sound/core/control.c @@ -747,11 +747,11 @@ static int snd_ctl_card_info(struct snd_card *card, struct snd_ctl_file * ctl, static int snd_ctl_elem_list(struct snd_card *card, struct snd_ctl_elem_list __user *_list) { - struct list_head *plist; struct snd_ctl_elem_list list; struct snd_kcontrol *kctl; - struct snd_ctl_elem_id *dst, *id; + struct snd_ctl_elem_id id; unsigned int offset, space, jidx; + int err = 0; if (copy_from_user(&list, _list, sizeof(list))) return -EFAULT; @@ -760,52 +760,34 @@ static int snd_ctl_elem_list(struct snd_card *card, /* try limit maximum space */ if (space > 16384) return -ENOMEM; + down_read(&card->controls_rwsem); + list.count = card->controls_count; + list.used = 0; if (space > 0) { - /* allocate temporary buffer for atomic operation */ - dst = vmalloc(space * sizeof(struct snd_ctl_elem_id)); - if (dst == NULL) - return -ENOMEM; - down_read(&card->controls_rwsem); - list.count = card->controls_count; - plist = card->controls.next; - while (plist != &card->controls) { - if (offset == 0) - break; - kctl = snd_kcontrol(plist); - if (offset < kctl->count) - break; - offset -= kctl->count; - plist = plist->next; - } - list.used = 0; - id = dst; - while (space > 0 && plist != &card->controls) { - kctl = snd_kcontrol(plist); - for (jidx = offset; space > 0 && jidx < kctl->count; jidx++) { - snd_ctl_build_ioff(id, kctl, jidx); - id++; - space--; + list_for_each_entry(kctl, &card->controls, list) { + if (offset >= kctl->count) { + offset -= kctl->count; + continue; + } + for (jidx = offset; jidx < kctl->count; jidx++) { + snd_ctl_build_ioff(&id, kctl, jidx); + if (copy_to_user(list.pids + list.used, &id, + sizeof(id))) { + err = -EFAULT; + goto out; + } list.used++; + if (!--space) + goto out; } - plist = plist->next; offset = 0; } - up_read(&card->controls_rwsem); - if (list.used > 0 && - copy_to_user(list.pids, dst, - list.used * sizeof(struct snd_ctl_elem_id))) { - vfree(dst); - return -EFAULT; - } - vfree(dst); - } else { - down_read(&card->controls_rwsem); - list.count = card->controls_count; - up_read(&card->controls_rwsem); } - if (copy_to_user(_list, &list, sizeof(list))) - return -EFAULT; - return 0; + out: + up_read(&card->controls_rwsem); + if (!err && copy_to_user(_list, &list, sizeof(list))) + err = -EFAULT; + return err; } static bool validate_element_member_dimension(struct snd_ctl_elem_info *info) -- 2.13.0

2 2

[alsa-devel] [PATCH v1] ACPI: Switch to use generic UUID API
by Andy Shevchenko 22 May '17

22 May '17

acpi_evaluate_dsm() and friends take a pointer to a raw buffer of 16 bytes. Instead we convert them to use uuid_le type. At the same time we convert current users. acpi_str_to_uuid() becomes useless after the conversion and it's safe to get rid of it. The conversion fixes a potential bug in int340x_thermal as well since we have to use memcmp() on binary data. Cc: Rafael J. Wysocki <rjw(a)rjwysocki.net> Cc: Mika Westerberg <mika.westerberg(a)linux.intel.com> Cc: Borislav Petkov <bp(a)suse.de> Cc: Dan Williams <dan.j.williams(a)intel.com> Cc: Amir Goldstein <amir73il(a)gmail.com> Cc: Jarkko Sakkinen <jarkko.sakkinen(a)linux.intel.com> Cc: Jani Nikula <jani.nikula(a)linux.intel.com> Cc: Ben Skeggs <bskeggs(a)redhat.com> Cc: Benjamin Tissoires <benjamin.tissoires(a)redhat.com> Cc: Joerg Roedel <joro(a)8bytes.org> Cc: Adrian Hunter <adrian.hunter(a)intel.com> Cc: Yisen Zhuang <yisen.zhuang(a)huawei.com> Cc: Bjorn Helgaas <bhelgaas(a)google.com> Cc: Zhang Rui <rui.zhang(a)intel.com> Cc: Felipe Balbi <balbi(a)kernel.org> Cc: Mathias Nyman <mathias.nyman(a)intel.com> Cc: Heikki Krogerus <heikki.krogerus(a)linux.intel.com> Cc: Liam Girdwood <lgirdwood(a)gmail.com> Cc: Mark Brown <broonie(a)kernel.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> --- drivers/acpi/acpi_extlog.c | 10 +++--- drivers/acpi/bus.c | 29 ++-------------- drivers/acpi/nfit/core.c | 40 +++++++++++----------- drivers/acpi/nfit/nfit.h | 3 +- drivers/acpi/utils.c | 4 +-- drivers/char/tpm/tpm_crb.c | 9 +++-- drivers/char/tpm/tpm_ppi.c | 20 +++++------ drivers/gpu/drm/i915/intel_acpi.c | 14 +++----- drivers/gpu/drm/nouveau/nouveau_acpi.c | 20 +++++------ drivers/gpu/drm/nouveau/nvkm/subdev/mxm/base.c | 9 +++-- drivers/hid/i2c-hid/i2c-hid.c | 9 +++-- drivers/iommu/dmar.c | 11 +++--- drivers/mmc/host/sdhci-pci-core.c | 9 +++-- drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c | 15 ++++---- drivers/pci/pci-acpi.c | 11 +++--- drivers/pci/pci-label.c | 4 +-- drivers/thermal/int340x_thermal/int3400_thermal.c | 8 ++--- drivers/usb/dwc3/dwc3-pci.c | 6 ++-- drivers/usb/host/xhci-pci.c | 9 +++-- drivers/usb/misc/ucsi.c | 2 +- drivers/usb/typec/typec_wcove.c | 4 +-- include/acpi/acpi_bus.h | 9 ++--- include/linux/acpi.h | 4 +-- include/linux/pci-acpi.h | 2 +- sound/soc/intel/skylake/skl-nhlt.c | 7 ++-- tools/testing/nvdimm/test/iomap.c | 2 +- tools/testing/nvdimm/test/nfit.c | 2 +- 27 files changed, 116 insertions(+), 156 deletions(-) diff --git a/drivers/acpi/acpi_extlog.c b/drivers/acpi/acpi_extlog.c index 502ea4dc2080..69d6140b6afa 100644 --- a/drivers/acpi/acpi_extlog.c +++ b/drivers/acpi/acpi_extlog.c @@ -182,17 +182,17 @@ static int extlog_print(struct notifier_block *nb, unsigned long val, static bool __init extlog_get_l1addr(void) { - u8 uuid[16]; + uuid_le uuid; acpi_handle handle; union acpi_object *obj; - acpi_str_to_uuid(extlog_dsm_uuid, uuid); - + if (uuid_le_to_bin(extlog_dsm_uuid, &uuid)) + return false; if (ACPI_FAILURE(acpi_get_handle(NULL, "\\_SB", &handle))) return false; - if (!acpi_check_dsm(handle, uuid, EXTLOG_DSM_REV, 1 << EXTLOG_FN_ADDR)) + if (!acpi_check_dsm(handle, &uuid, EXTLOG_DSM_REV, 1 << EXTLOG_FN_ADDR)) return false; - obj = acpi_evaluate_dsm_typed(handle, uuid, EXTLOG_DSM_REV, + obj = acpi_evaluate_dsm_typed(handle, &uuid, EXTLOG_DSM_REV, EXTLOG_FN_ADDR, NULL, ACPI_TYPE_INTEGER); if (!obj) { return false; diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index 784bda663d16..e8130a4873e9 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -196,42 +196,19 @@ static void acpi_print_osc_error(acpi_handle handle, pr_debug("\n"); } -acpi_status acpi_str_to_uuid(char *str, u8 *uuid) -{ - int i; - static int opc_map_to_uuid[16] = {6, 4, 2, 0, 11, 9, 16, 14, 19, 21, - 24, 26, 28, 30, 32, 34}; - - if (strlen(str) != 36) - return AE_BAD_PARAMETER; - for (i = 0; i < 36; i++) { - if (i == 8 || i == 13 || i == 18 || i == 23) { - if (str[i] != '-') - return AE_BAD_PARAMETER; - } else if (!isxdigit(str[i])) - return AE_BAD_PARAMETER; - } - for (i = 0; i < 16; i++) { - uuid[i] = hex_to_bin(str[opc_map_to_uuid[i]]) << 4; - uuid[i] |= hex_to_bin(str[opc_map_to_uuid[i] + 1]); - } - return AE_OK; -} -EXPORT_SYMBOL_GPL(acpi_str_to_uuid); - acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context) { acpi_status status; struct acpi_object_list input; union acpi_object in_params[4]; union acpi_object *out_obj; - u8 uuid[16]; + uuid_le uuid; u32 errors; struct acpi_buffer output = {ACPI_ALLOCATE_BUFFER, NULL}; if (!context) return AE_ERROR; - if (ACPI_FAILURE(acpi_str_to_uuid(context->uuid_str, uuid))) + if (uuid_le_to_bin(context->uuid_str, &uuid)) return AE_ERROR; context->ret.length = ACPI_ALLOCATE_BUFFER; context->ret.pointer = NULL; @@ -241,7 +218,7 @@ acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context) input.pointer = in_params; in_params[0].type = ACPI_TYPE_BUFFER; in_params[0].buffer.length = 16; - in_params[0].buffer.pointer = uuid; + in_params[0].buffer.pointer = (u8 *)&uuid; in_params[1].type = ACPI_TYPE_INTEGER; in_params[1].integer.value = context->rev; in_params[2].type = ACPI_TYPE_INTEGER; diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c index 0f7982a1caaf..bd3e45ede056 100644 --- a/drivers/acpi/nfit/core.c +++ b/drivers/acpi/nfit/core.c @@ -74,11 +74,11 @@ struct nfit_table_prev { struct list_head flushes; }; -static u8 nfit_uuid[NFIT_UUID_MAX][16]; +static uuid_le nfit_uuid[NFIT_UUID_MAX]; -const u8 *to_nfit_uuid(enum nfit_uuids id) +const uuid_le *to_nfit_uuid(enum nfit_uuids id) { - return nfit_uuid[id]; + return &nfit_uuid[id]; } EXPORT_SYMBOL(to_nfit_uuid); @@ -207,7 +207,7 @@ int acpi_nfit_ctl(struct nvdimm_bus_descriptor *nd_desc, struct nvdimm *nvdimm, u32 offset, fw_status = 0; acpi_handle handle; unsigned int func; - const u8 *uuid; + const uuid_le *uuid; int rc, i; func = cmd; @@ -394,7 +394,7 @@ int nfit_spa_type(struct acpi_nfit_system_address *spa) int i; for (i = 0; i < NFIT_UUID_MAX; i++) - if (memcmp(to_nfit_uuid(i), spa->range_guid, 16) == 0) + if (!uuid_le_cmp_pp(to_nfit_uuid(i), (uuid_le *)spa->range_guid)) return i; return -1; } @@ -1400,7 +1400,7 @@ static int acpi_nfit_add_dimm(struct acpi_nfit_desc *acpi_desc, struct acpi_device *adev, *adev_dimm; struct device *dev = acpi_desc->dev; unsigned long dsm_mask; - const u8 *uuid; + const uuid_le *uuid = to_nfit_uuid(NFIT_DEV_DIMM); int i; int family = -1; @@ -1596,7 +1596,7 @@ static int acpi_nfit_register_dimms(struct acpi_nfit_desc *acpi_desc) static void acpi_nfit_init_dsms(struct acpi_nfit_desc *acpi_desc) { struct nvdimm_bus_descriptor *nd_desc = &acpi_desc->nd_desc; - const u8 *uuid = to_nfit_uuid(NFIT_DEV_BUS); + const uuid_le *uuid = to_nfit_uuid(NFIT_DEV_BUS); struct acpi_device *adev; int i; @@ -3036,19 +3036,19 @@ static __init int nfit_init(void) BUILD_BUG_ON(sizeof(struct acpi_nfit_control_region) != 80); BUILD_BUG_ON(sizeof(struct acpi_nfit_data_region) != 40); - acpi_str_to_uuid(UUID_VOLATILE_MEMORY, nfit_uuid[NFIT_SPA_VOLATILE]); - acpi_str_to_uuid(UUID_PERSISTENT_MEMORY, nfit_uuid[NFIT_SPA_PM]); - acpi_str_to_uuid(UUID_CONTROL_REGION, nfit_uuid[NFIT_SPA_DCR]); - acpi_str_to_uuid(UUID_DATA_REGION, nfit_uuid[NFIT_SPA_BDW]); - acpi_str_to_uuid(UUID_VOLATILE_VIRTUAL_DISK, nfit_uuid[NFIT_SPA_VDISK]); - acpi_str_to_uuid(UUID_VOLATILE_VIRTUAL_CD, nfit_uuid[NFIT_SPA_VCD]); - acpi_str_to_uuid(UUID_PERSISTENT_VIRTUAL_DISK, nfit_uuid[NFIT_SPA_PDISK]); - acpi_str_to_uuid(UUID_PERSISTENT_VIRTUAL_CD, nfit_uuid[NFIT_SPA_PCD]); - acpi_str_to_uuid(UUID_NFIT_BUS, nfit_uuid[NFIT_DEV_BUS]); - acpi_str_to_uuid(UUID_NFIT_DIMM, nfit_uuid[NFIT_DEV_DIMM]); - acpi_str_to_uuid(UUID_NFIT_DIMM_N_HPE1, nfit_uuid[NFIT_DEV_DIMM_N_HPE1]); - acpi_str_to_uuid(UUID_NFIT_DIMM_N_HPE2, nfit_uuid[NFIT_DEV_DIMM_N_HPE2]); - acpi_str_to_uuid(UUID_NFIT_DIMM_N_MSFT, nfit_uuid[NFIT_DEV_DIMM_N_MSFT]); + uuid_le_to_bin(UUID_VOLATILE_MEMORY, &nfit_uuid[NFIT_SPA_VOLATILE]); + uuid_le_to_bin(UUID_PERSISTENT_MEMORY, &nfit_uuid[NFIT_SPA_PM]); + uuid_le_to_bin(UUID_CONTROL_REGION, &nfit_uuid[NFIT_SPA_DCR]); + uuid_le_to_bin(UUID_DATA_REGION, &nfit_uuid[NFIT_SPA_BDW]); + uuid_le_to_bin(UUID_VOLATILE_VIRTUAL_DISK, &nfit_uuid[NFIT_SPA_VDISK]); + uuid_le_to_bin(UUID_VOLATILE_VIRTUAL_CD, &nfit_uuid[NFIT_SPA_VCD]); + uuid_le_to_bin(UUID_PERSISTENT_VIRTUAL_DISK, &nfit_uuid[NFIT_SPA_PDISK]); + uuid_le_to_bin(UUID_PERSISTENT_VIRTUAL_CD, &nfit_uuid[NFIT_SPA_PCD]); + uuid_le_to_bin(UUID_NFIT_BUS, &nfit_uuid[NFIT_DEV_BUS]); + uuid_le_to_bin(UUID_NFIT_DIMM, &nfit_uuid[NFIT_DEV_DIMM]); + uuid_le_to_bin(UUID_NFIT_DIMM_N_HPE1, &nfit_uuid[NFIT_DEV_DIMM_N_HPE1]); + uuid_le_to_bin(UUID_NFIT_DIMM_N_HPE2, &nfit_uuid[NFIT_DEV_DIMM_N_HPE2]); + uuid_le_to_bin(UUID_NFIT_DIMM_N_MSFT, &nfit_uuid[NFIT_DEV_DIMM_N_MSFT]); nfit_wq = create_singlethread_workqueue("nfit"); if (!nfit_wq) diff --git a/drivers/acpi/nfit/nfit.h b/drivers/acpi/nfit/nfit.h index 58fb7d68e04a..2f233b28709f 100644 --- a/drivers/acpi/nfit/nfit.h +++ b/drivers/acpi/nfit/nfit.h @@ -18,7 +18,6 @@ #include <linux/libnvdimm.h> #include <linux/ndctl.h> #include <linux/types.h> -#include <linux/uuid.h> #include <linux/acpi.h> #include <acpi/acuuid.h> @@ -237,7 +236,7 @@ static inline struct acpi_nfit_desc *to_acpi_desc( return container_of(nd_desc, struct acpi_nfit_desc, nd_desc); } -const u8 *to_nfit_uuid(enum nfit_uuids id); +const uuid_le *to_nfit_uuid(enum nfit_uuids id); int acpi_nfit_init(struct acpi_nfit_desc *acpi_desc, void *nfit, acpi_size sz); void acpi_nfit_shutdown(void *data); void __acpi_nfit_notify(struct device *dev, acpi_handle handle, u32 event); diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c index 27d0dcfcf47d..bbe8a950e508 100644 --- a/drivers/acpi/utils.c +++ b/drivers/acpi/utils.c @@ -625,7 +625,7 @@ acpi_status acpi_evaluate_lck(acpi_handle handle, int lock) * some old BIOSes do expect a buffer or an integer etc. */ union acpi_object * -acpi_evaluate_dsm(acpi_handle handle, const u8 *uuid, u64 rev, u64 func, +acpi_evaluate_dsm(acpi_handle handle, const uuid_le *uuid, u64 rev, u64 func, union acpi_object *argv4) { acpi_status ret; @@ -674,7 +674,7 @@ EXPORT_SYMBOL(acpi_evaluate_dsm); * functions. Currently only support 64 functions at maximum, should be * enough for now. */ -bool acpi_check_dsm(acpi_handle handle, const u8 *uuid, u64 rev, u64 funcs) +bool acpi_check_dsm(acpi_handle handle, const uuid_le *uuid, u64 rev, u64 funcs) { int i; u64 mask = 0; diff --git a/drivers/char/tpm/tpm_crb.c b/drivers/char/tpm/tpm_crb.c index b917b9d5f710..f789f7e5a17d 100644 --- a/drivers/char/tpm/tpm_crb.c +++ b/drivers/char/tpm/tpm_crb.c @@ -27,10 +27,9 @@ #define ACPI_SIG_TPM2 "TPM2" -static const u8 CRB_ACPI_START_UUID[] = { - /* 0000 */ 0xAB, 0x6C, 0xBF, 0x6B, 0x63, 0x54, 0x14, 0x47, - /* 0008 */ 0xB7, 0xCD, 0xF0, 0x20, 0x3C, 0x03, 0x68, 0xD4 -}; +static const uuid_le crb_acpi_start_uuid = + UUID_LE(0x6BBF6CAB, 0x5463, 0x4714, + 0xB7, 0xCD, 0xF0, 0x20, 0x3C, 0x03, 0x68, 0xD4); enum crb_defaults { CRB_ACPI_START_REVISION_ID = 1, @@ -266,7 +265,7 @@ static int crb_do_acpi_start(struct tpm_chip *chip) int rc; obj = acpi_evaluate_dsm(chip->acpi_dev_handle, - CRB_ACPI_START_UUID, + &crb_acpi_start_uuid, CRB_ACPI_START_REVISION_ID, CRB_ACPI_START_INDEX, NULL); diff --git a/drivers/char/tpm/tpm_ppi.c b/drivers/char/tpm/tpm_ppi.c index 692a2c6ae036..7cf682426361 100644 --- a/drivers/char/tpm/tpm_ppi.c +++ b/drivers/char/tpm/tpm_ppi.c @@ -32,20 +32,16 @@ #define PPI_VS_REQ_START 128 #define PPI_VS_REQ_END 255 -static const u8 tpm_ppi_uuid[] = { - 0xA6, 0xFA, 0xDD, 0x3D, - 0x1B, 0x36, - 0xB4, 0x4E, - 0xA4, 0x24, - 0x8D, 0x10, 0x08, 0x9D, 0x16, 0x53 -}; +static const uuid_le tpm_ppi_uuid = + UUID_LE(0x3DDDFAA6, 0x361B, 0x4EB4, + 0xA4, 0x24, 0x8D, 0x10, 0x08, 0x9D, 0x16, 0x53); static inline union acpi_object * tpm_eval_dsm(acpi_handle ppi_handle, int func, acpi_object_type type, union acpi_object *argv4) { BUG_ON(!ppi_handle); - return acpi_evaluate_dsm_typed(ppi_handle, tpm_ppi_uuid, + return acpi_evaluate_dsm_typed(ppi_handle, &tpm_ppi_uuid, TPM_PPI_REVISION_ID, func, argv4, type); } @@ -107,7 +103,7 @@ static ssize_t tpm_store_ppi_request(struct device *dev, * is updated with function index from SUBREQ to SUBREQ2 since PPI * version 1.1 */ - if (acpi_check_dsm(chip->acpi_dev_handle, tpm_ppi_uuid, + if (acpi_check_dsm(chip->acpi_dev_handle, &tpm_ppi_uuid, TPM_PPI_REVISION_ID, 1 << TPM_PPI_FN_SUBREQ2)) func = TPM_PPI_FN_SUBREQ2; @@ -268,7 +264,7 @@ static ssize_t show_ppi_operations(acpi_handle dev_handle, char *buf, u32 start, "User not required", }; - if (!acpi_check_dsm(dev_handle, tpm_ppi_uuid, TPM_PPI_REVISION_ID, + if (!acpi_check_dsm(dev_handle, &tpm_ppi_uuid, TPM_PPI_REVISION_ID, 1 << TPM_PPI_FN_GETOPR)) return -EPERM; @@ -341,12 +337,12 @@ void tpm_add_ppi(struct tpm_chip *chip) if (!chip->acpi_dev_handle) return; - if (!acpi_check_dsm(chip->acpi_dev_handle, tpm_ppi_uuid, + if (!acpi_check_dsm(chip->acpi_dev_handle, &tpm_ppi_uuid, TPM_PPI_REVISION_ID, 1 << TPM_PPI_FN_VERSION)) return; /* Cache PPI version string. */ - obj = acpi_evaluate_dsm_typed(chip->acpi_dev_handle, tpm_ppi_uuid, + obj = acpi_evaluate_dsm_typed(chip->acpi_dev_handle, &tpm_ppi_uuid, TPM_PPI_REVISION_ID, TPM_PPI_FN_VERSION, NULL, ACPI_TYPE_STRING); if (obj) { diff --git a/drivers/gpu/drm/i915/intel_acpi.c b/drivers/gpu/drm/i915/intel_acpi.c index eb638a1e69d2..72bfe6ceadf8 100644 --- a/drivers/gpu/drm/i915/intel_acpi.c +++ b/drivers/gpu/drm/i915/intel_acpi.c @@ -15,13 +15,9 @@ static struct intel_dsm_priv { acpi_handle dhandle; } intel_dsm_priv; -static const u8 intel_dsm_guid[] = { - 0xd3, 0x73, 0xd8, 0x7e, - 0xd0, 0xc2, - 0x4f, 0x4e, - 0xa8, 0x54, - 0x0f, 0x13, 0x17, 0xb0, 0x1c, 0x2c -}; +static const uuid_le intel_dsm_guid = + UUID_LE(0x7ed873d3, 0xc2d0, 0x4e4f, + 0xa8, 0x54, 0x0f, 0x13, 0x17, 0xb0, 0x1c, 0x2c); static char *intel_dsm_port_name(u8 id) { @@ -80,7 +76,7 @@ static void intel_dsm_platform_mux_info(void) int i; union acpi_object *pkg, *connector_count; - pkg = acpi_evaluate_dsm_typed(intel_dsm_priv.dhandle, intel_dsm_guid, + pkg = acpi_evaluate_dsm_typed(intel_dsm_priv.dhandle, &intel_dsm_guid, INTEL_DSM_REVISION_ID, INTEL_DSM_FN_PLATFORM_MUX_INFO, NULL, ACPI_TYPE_PACKAGE); if (!pkg) { @@ -118,7 +114,7 @@ static bool intel_dsm_pci_probe(struct pci_dev *pdev) if (!dhandle) return false; - if (!acpi_check_dsm(dhandle, intel_dsm_guid, INTEL_DSM_REVISION_ID, + if (!acpi_check_dsm(dhandle, &intel_dsm_guid, INTEL_DSM_REVISION_ID, 1 << INTEL_DSM_FN_PLATFORM_MUX_INFO)) { DRM_DEBUG_KMS("no _DSM method for intel device\n"); return false; diff --git a/drivers/gpu/drm/nouveau/nouveau_acpi.c b/drivers/gpu/drm/nouveau/nouveau_acpi.c index 39468c218027..faea23276d4a 100644 --- a/drivers/gpu/drm/nouveau/nouveau_acpi.c +++ b/drivers/gpu/drm/nouveau/nouveau_acpi.c @@ -60,15 +60,13 @@ bool nouveau_is_v1_dsm(void) { } #ifdef CONFIG_VGA_SWITCHEROO -static const char nouveau_dsm_muid[] = { - 0xA0, 0xA0, 0x95, 0x9D, 0x60, 0x00, 0x48, 0x4D, - 0xB3, 0x4D, 0x7E, 0x5F, 0xEA, 0x12, 0x9F, 0xD4, -}; +static const uuid_le nouveau_dsm_muid = + UUID_LE(0x9D95A0A0, 0x0060, 0x4D48, + 0xB3, 0x4D, 0x7E, 0x5F, 0xEA, 0x12, 0x9F, 0xD4); -static const char nouveau_op_dsm_muid[] = { - 0xF8, 0xD8, 0x86, 0xA4, 0xDA, 0x0B, 0x1B, 0x47, - 0xA7, 0x2B, 0x60, 0x42, 0xA6, 0xB5, 0xBE, 0xE0, -}; +static const uuid_le nouveau_op_dsm_muid = + UUID_LE(0xA486D8F8, 0x0BDA, 0x471B, + 0xA7, 0x2B, 0x60, 0x42, 0xA6, 0xB5, 0xBE, 0xE0); static int nouveau_optimus_dsm(acpi_handle handle, int func, int arg, uint32_t *result) { @@ -86,7 +84,7 @@ static int nouveau_optimus_dsm(acpi_handle handle, int func, int arg, uint32_t * args_buff[i] = (arg >> i * 8) & 0xFF; *result = 0; - obj = acpi_evaluate_dsm_typed(handle, nouveau_op_dsm_muid, 0x00000100, + obj = acpi_evaluate_dsm_typed(handle, &nouveau_op_dsm_muid, 0x00000100, func, &argv4, ACPI_TYPE_BUFFER); if (!obj) { acpi_handle_info(handle, "failed to evaluate _DSM\n"); @@ -138,7 +136,7 @@ static int nouveau_dsm(acpi_handle handle, int func, int arg) .integer.value = arg, }; - obj = acpi_evaluate_dsm_typed(handle, nouveau_dsm_muid, 0x00000102, + obj = acpi_evaluate_dsm_typed(handle, &nouveau_dsm_muid, 0x00000102, func, &argv4, ACPI_TYPE_INTEGER); if (!obj) { acpi_handle_info(handle, "failed to evaluate _DSM\n"); @@ -259,7 +257,7 @@ static void nouveau_dsm_pci_probe(struct pci_dev *pdev, acpi_handle *dhandle_out if (!acpi_has_method(dhandle, "_DSM")) return; - supports_mux = acpi_check_dsm(dhandle, nouveau_dsm_muid, 0x00000102, + supports_mux = acpi_check_dsm(dhandle, &nouveau_dsm_muid, 0x00000102, 1 << NOUVEAU_DSM_POWER); optimus_funcs = nouveau_dsm_get_optimus_functions(dhandle); diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mxm/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mxm/base.c index e3e2f5e83815..cc95b8150a86 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/mxm/base.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mxm/base.c @@ -81,10 +81,9 @@ mxm_shadow_dsm(struct nvkm_mxm *mxm, u8 version) { struct nvkm_subdev *subdev = &mxm->subdev; struct nvkm_device *device = subdev->device; - static char muid[] = { - 0x00, 0xA4, 0x04, 0x40, 0x7D, 0x91, 0xF2, 0x4C, - 0xB8, 0x9C, 0x79, 0xB6, 0x2F, 0xD5, 0x56, 0x65 - }; + static uuid_le muid = + UUID_LE(0x4004A400, 0x917D, 0x4CF2, + 0xB8, 0x9C, 0x79, 0xB6, 0x2F, 0xD5, 0x56, 0x65); u32 mxms_args[] = { 0x00000000 }; union acpi_object argv4 = { .buffer.type = ACPI_TYPE_BUFFER, @@ -105,7 +104,7 @@ mxm_shadow_dsm(struct nvkm_mxm *mxm, u8 version) * unless you pass in exactly the version it supports.. */ rev = (version & 0xf0) << 4 | (version & 0x0f); - obj = acpi_evaluate_dsm(handle, muid, rev, 0x00000010, &argv4); + obj = acpi_evaluate_dsm(handle, &muid, rev, 0x00000010, &argv4); if (!obj) { nvkm_debug(subdev, "DSM MXMS failed\n"); return false; diff --git a/drivers/hid/i2c-hid/i2c-hid.c b/drivers/hid/i2c-hid/i2c-hid.c index 8daa8ce64ebb..f83bd717cdd5 100644 --- a/drivers/hid/i2c-hid/i2c-hid.c +++ b/drivers/hid/i2c-hid/i2c-hid.c @@ -872,10 +872,9 @@ static int i2c_hid_fetch_hid_descriptor(struct i2c_hid *ihid) static int i2c_hid_acpi_pdata(struct i2c_client *client, struct i2c_hid_platform_data *pdata) { - static u8 i2c_hid_guid[] = { - 0xF7, 0xF6, 0xDF, 0x3C, 0x67, 0x42, 0x55, 0x45, - 0xAD, 0x05, 0xB3, 0x0A, 0x3D, 0x89, 0x38, 0xDE, - }; + static uuid_le i2c_hid_guid = + UUID_LE(0x3CDFF6F7, 0x4267, 0x4555, + 0xAD, 0x05, 0xB3, 0x0A, 0x3D, 0x89, 0x38, 0xDE); union acpi_object *obj; struct acpi_device *adev; acpi_handle handle; @@ -884,7 +883,7 @@ static int i2c_hid_acpi_pdata(struct i2c_client *client, if (!handle || acpi_bus_get_device(handle, &adev)) return -ENODEV; - obj = acpi_evaluate_dsm_typed(handle, i2c_hid_guid, 1, 1, NULL, + obj = acpi_evaluate_dsm_typed(handle, &i2c_hid_guid, 1, 1, NULL, ACPI_TYPE_INTEGER); if (!obj) { dev_err(&client->dev, "device _DSM execution failed\n"); diff --git a/drivers/iommu/dmar.c b/drivers/iommu/dmar.c index cbf7763d8091..420d51b286ad 100644 --- a/drivers/iommu/dmar.c +++ b/drivers/iommu/dmar.c @@ -1808,10 +1808,9 @@ IOMMU_INIT_POST(detect_intel_iommu); * for Directed-IO Architecture Specifiction, Rev 2.2, Section 8.8 * "Remapping Hardware Unit Hot Plug". */ -static u8 dmar_hp_uuid[] = { - /* 0000 */ 0xA6, 0xA3, 0xC1, 0xD8, 0x9B, 0xBE, 0x9B, 0x4C, - /* 0008 */ 0x91, 0xBF, 0xC3, 0xCB, 0x81, 0xFC, 0x5D, 0xAF -}; +static uuid_le dmar_hp_uuid = + UUID_LE(0xD8C1A3A6, 0xBE9B, 0x4C9B, + 0x91, 0xBF, 0xC3, 0xCB, 0x81, 0xFC, 0x5D, 0xAF); /* * Currently there's only one revision and BIOS will not check the revision id, @@ -1824,7 +1823,7 @@ static u8 dmar_hp_uuid[] = { static inline bool dmar_detect_dsm(acpi_handle handle, int func) { - return acpi_check_dsm(handle, dmar_hp_uuid, DMAR_DSM_REV_ID, 1 << func); + return acpi_check_dsm(handle, &dmar_hp_uuid, DMAR_DSM_REV_ID, 1 << func); } static int dmar_walk_dsm_resource(acpi_handle handle, int func, @@ -1843,7 +1842,7 @@ static int dmar_walk_dsm_resource(acpi_handle handle, int func, if (!dmar_detect_dsm(handle, func)) return 0; - obj = acpi_evaluate_dsm_typed(handle, dmar_hp_uuid, DMAR_DSM_REV_ID, + obj = acpi_evaluate_dsm_typed(handle, &dmar_hp_uuid, DMAR_DSM_REV_ID, func, NULL, ACPI_TYPE_BUFFER); if (!obj) return -ENODEV; diff --git a/drivers/mmc/host/sdhci-pci-core.c b/drivers/mmc/host/sdhci-pci-core.c index 92fc3f7c538d..262b8c320d7c 100644 --- a/drivers/mmc/host/sdhci-pci-core.c +++ b/drivers/mmc/host/sdhci-pci-core.c @@ -404,10 +404,9 @@ struct intel_host { bool d3_retune; }; -const u8 intel_dsm_uuid[] = { - 0xA5, 0x3E, 0xC1, 0xF6, 0xCD, 0x65, 0x1F, 0x46, - 0xAB, 0x7A, 0x29, 0xF7, 0xE8, 0xD5, 0xBD, 0x61, -}; +const uuid_le intel_dsm_uuid = + UUID_LE(0xF6C13EA5, 0x65CD, 0x461F, + 0xAB, 0x7A, 0x29, 0xF7, 0xE8, 0xD5, 0xBD, 0x61); static int __intel_dsm(struct intel_host *intel_host, struct device *dev, unsigned int fn, u32 *result) @@ -416,7 +415,7 @@ static int __intel_dsm(struct intel_host *intel_host, struct device *dev, int err = 0; size_t len; - obj = acpi_evaluate_dsm(ACPI_HANDLE(dev), intel_dsm_uuid, 0, fn, NULL); + obj = acpi_evaluate_dsm(ACPI_HANDLE(dev), &intel_dsm_uuid, 0, fn, NULL); if (!obj) return -EOPNOTSUPP; diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c index e13aa064a8e9..02842fe7f1d0 100644 --- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c +++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c @@ -29,10 +29,9 @@ enum _dsm_rst_type { HNS_ROCE_RESET_FUNC = 0x7, }; -const u8 hns_dsaf_acpi_dsm_uuid[] = { - 0x1A, 0xAA, 0x85, 0x1A, 0x93, 0xE2, 0x5E, 0x41, - 0x8E, 0x28, 0x8D, 0x69, 0x0A, 0x0F, 0x82, 0x0A -}; +const uuid_le hns_dsaf_acpi_dsm_uuid = + UUID_LE(0x1A85AA1A, 0xE293, 0x415E, + 0x8E, 0x28, 0x8D, 0x69, 0x0A, 0x0F, 0x82, 0x0A); static void dsaf_write_sub(struct dsaf_device *dsaf_dev, u32 reg, u32 val) { @@ -151,7 +150,7 @@ static void hns_dsaf_acpi_srst_by_port(struct dsaf_device *dsaf_dev, u8 op_type, argv4.package.elements = obj_args; obj = acpi_evaluate_dsm(ACPI_HANDLE(dsaf_dev->dev), - hns_dsaf_acpi_dsm_uuid, 0, op_type, &argv4); + &hns_dsaf_acpi_dsm_uuid, 0, op_type, &argv4); if (!obj) { dev_warn(dsaf_dev->dev, "reset port_type%d port%d fail!", port_type, port); @@ -434,7 +433,7 @@ static phy_interface_t hns_mac_get_phy_if_acpi(struct hns_mac_cb *mac_cb) argv4.package.elements = &obj_args, obj = acpi_evaluate_dsm(ACPI_HANDLE(mac_cb->dev), - hns_dsaf_acpi_dsm_uuid, 0, + &hns_dsaf_acpi_dsm_uuid, 0, HNS_OP_GET_PORT_TYPE_FUNC, &argv4); if (!obj || obj->type != ACPI_TYPE_INTEGER) @@ -474,7 +473,7 @@ int hns_mac_get_sfp_prsnt_acpi(struct hns_mac_cb *mac_cb, int *sfp_prsnt) argv4.package.elements = &obj_args, obj = acpi_evaluate_dsm(ACPI_HANDLE(mac_cb->dev), - hns_dsaf_acpi_dsm_uuid, 0, + &hns_dsaf_acpi_dsm_uuid, 0, HNS_OP_GET_SFP_STAT_FUNC, &argv4); if (!obj || obj->type != ACPI_TYPE_INTEGER) @@ -565,7 +564,7 @@ hns_mac_config_sds_loopback_acpi(struct hns_mac_cb *mac_cb, bool en) argv4.package.elements = obj_args; obj = acpi_evaluate_dsm(ACPI_HANDLE(mac_cb->dsaf_dev->dev), - hns_dsaf_acpi_dsm_uuid, 0, + &hns_dsaf_acpi_dsm_uuid, 0, HNS_OP_SERDES_LP_FUNC, &argv4); if (!obj) { dev_warn(mac_cb->dsaf_dev->dev, "set port%d serdes lp fail!", diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c index 001860361434..eb612123e0dd 100644 --- a/drivers/pci/pci-acpi.c +++ b/drivers/pci/pci-acpi.c @@ -24,10 +24,9 @@ * The UUID is defined in the PCI Firmware Specification available here: * https://www.pcisig.com/members/downloads/pcifw_r3_1_13Dec10.pdf */ -const u8 pci_acpi_dsm_uuid[] = { - 0xd0, 0x37, 0xc9, 0xe5, 0x53, 0x35, 0x7a, 0x4d, - 0x91, 0x17, 0xea, 0x4d, 0x19, 0xc3, 0x43, 0x4d -}; +const uuid_le pci_acpi_dsm_uuid = + UUID_LE(0xe5c937d0, 0x3553, 0x4d7a, + 0x91, 0x17, 0xea, 0x4d, 0x19, 0xc3, 0x43, 0x4d); #if defined(CONFIG_PCI_QUIRKS) && defined(CONFIG_ARM64) static int acpi_get_rc_addr(struct acpi_device *adev, struct resource *res) @@ -680,7 +679,7 @@ void acpi_pci_add_bus(struct pci_bus *bus) if (!pci_is_root_bus(bus)) return; - obj = acpi_evaluate_dsm(ACPI_HANDLE(bus->bridge), pci_acpi_dsm_uuid, 3, + obj = acpi_evaluate_dsm(ACPI_HANDLE(bus->bridge), &pci_acpi_dsm_uuid, 3, RESET_DELAY_DSM, NULL); if (!obj) return; @@ -745,7 +744,7 @@ static void pci_acpi_optimize_delay(struct pci_dev *pdev, if (bridge->ignore_reset_delay) pdev->d3cold_delay = 0; - obj = acpi_evaluate_dsm(handle, pci_acpi_dsm_uuid, 3, + obj = acpi_evaluate_dsm(handle, &pci_acpi_dsm_uuid, 3, FUNCTION_DELAY_DSM, NULL); if (!obj) return; diff --git a/drivers/pci/pci-label.c b/drivers/pci/pci-label.c index 51357377efbc..a2c04229f1dc 100644 --- a/drivers/pci/pci-label.c +++ b/drivers/pci/pci-label.c @@ -172,7 +172,7 @@ static int dsm_get_label(struct device *dev, char *buf, if (!handle) return -1; - obj = acpi_evaluate_dsm(handle, pci_acpi_dsm_uuid, 0x2, + obj = acpi_evaluate_dsm(handle, &pci_acpi_dsm_uuid, 0x2, DEVICE_LABEL_DSM, NULL); if (!obj) return -1; @@ -212,7 +212,7 @@ static bool device_has_dsm(struct device *dev) if (!handle) return false; - return !!acpi_check_dsm(handle, pci_acpi_dsm_uuid, 0x2, + return !!acpi_check_dsm(handle, &pci_acpi_dsm_uuid, 0x2, 1 << DEVICE_LABEL_DSM); } diff --git a/drivers/thermal/int340x_thermal/int3400_thermal.c b/drivers/thermal/int340x_thermal/int3400_thermal.c index 9413c4abf0b9..c0eb3bb19b23 100644 --- a/drivers/thermal/int340x_thermal/int3400_thermal.c +++ b/drivers/thermal/int340x_thermal/int3400_thermal.c @@ -23,7 +23,7 @@ enum int3400_thermal_uuid { INT3400_THERMAL_MAXIMUM_UUID, }; -static u8 *int3400_thermal_uuids[INT3400_THERMAL_MAXIMUM_UUID] = { +static const char *int3400_thermal_uuids[INT3400_THERMAL_MAXIMUM_UUID] = { "42A441D6-AE6A-462b-A84B-4A8CE79027D3", "3A95C389-E4B8-4629-A526-C52C88626BAE", "97C68AE7-15FA-499c-B8C9-5DA81D606E0A", @@ -141,10 +141,10 @@ static int int3400_thermal_get_uuids(struct int3400_thermal_priv *priv) } for (j = 0; j < INT3400_THERMAL_MAXIMUM_UUID; j++) { - u8 uuid[16]; + uuid_le u; - acpi_str_to_uuid(int3400_thermal_uuids[j], uuid); - if (!strncmp(uuid, objb->buffer.pointer, 16)) { + uuid_le_to_bin(int3400_thermal_uuids[j], &u); + if (!uuid_le_cmp(*(uuid_le *)objb->buffer.pointer), u) { priv->uuid_bitmap |= (1 << j); break; } diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c index a15ec71d0423..6b5284ec76df 100644 --- a/drivers/usb/dwc3/dwc3-pci.c +++ b/drivers/usb/dwc3/dwc3-pci.c @@ -56,7 +56,7 @@ struct dwc3_pci { struct platform_device *dwc3; struct pci_dev *pci; - u8 uuid[16]; + uuid_le uuid; unsigned int has_dsm_for_pm:1; }; @@ -118,7 +118,7 @@ static int dwc3_pci_quirks(struct dwc3_pci *dwc) if (pdev->device == PCI_DEVICE_ID_INTEL_BXT || pdev->device == PCI_DEVICE_ID_INTEL_BXT_M) { - acpi_str_to_uuid(PCI_INTEL_BXT_DSM_UUID, dwc->uuid); + uuid_le_to_bin(PCI_INTEL_BXT_DSM_UUID, &dwc->uuid); dwc->has_dsm_for_pm = true; } @@ -288,7 +288,7 @@ static int dwc3_pci_dsm(struct dwc3_pci *dwc, int param) tmp.type = ACPI_TYPE_INTEGER; tmp.integer.value = param; - obj = acpi_evaluate_dsm(ACPI_HANDLE(&dwc->pci->dev), dwc->uuid, + obj = acpi_evaluate_dsm(ACPI_HANDLE(&dwc->pci->dev), &dwc->uuid, 1, PCI_INTEL_BXT_FUNC_PMU_PWR, &argv4); if (!obj) { dev_err(&dwc->pci->dev, "failed to evaluate _DSM\n"); diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c index 7b86508ac8cf..93b4f0de9418 100644 --- a/drivers/usb/host/xhci-pci.c +++ b/drivers/usb/host/xhci-pci.c @@ -210,13 +210,12 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci) #ifdef CONFIG_ACPI static void xhci_pme_acpi_rtd3_enable(struct pci_dev *dev) { - static const u8 intel_dsm_uuid[] = { - 0xb7, 0x0c, 0x34, 0xac, 0x01, 0xe9, 0xbf, 0x45, - 0xb7, 0xe6, 0x2b, 0x34, 0xec, 0x93, 0x1e, 0x23, - }; + static const uuid_le intel_dsm_uuid = + UUID_LE(0xac340cb7, 0xe901, 0x45bf, + 0xb7, 0xe6, 0x2b, 0x34, 0xec, 0x93, 0x1e, 0x23); union acpi_object *obj; - obj = acpi_evaluate_dsm(ACPI_HANDLE(&dev->dev), intel_dsm_uuid, 3, 1, + obj = acpi_evaluate_dsm(ACPI_HANDLE(&dev->dev), &intel_dsm_uuid, 3, 1, NULL); ACPI_FREE(obj); } diff --git a/drivers/usb/misc/ucsi.c b/drivers/usb/misc/ucsi.c index 07397bddefa3..49e32ffbe59f 100644 --- a/drivers/usb/misc/ucsi.c +++ b/drivers/usb/misc/ucsi.c @@ -61,7 +61,7 @@ static int ucsi_acpi_cmd(struct ucsi *ucsi, struct ucsi_control *ctrl) ucsi->data->ctrl.raw_cmd = ctrl->raw_cmd; - obj = acpi_evaluate_dsm(ACPI_HANDLE(ucsi->dev), uuid.b, 1, 1, NULL); + obj = acpi_evaluate_dsm(ACPI_HANDLE(ucsi->dev), &uuid, 1, 1, NULL); if (!obj) { dev_err(ucsi->dev, "%s: failed to evaluate _DSM\n", __func__); return -EIO; diff --git a/drivers/usb/typec/typec_wcove.c b/drivers/usb/typec/typec_wcove.c index d5a7b21fa3f1..5ce93e0a15ca 100644 --- a/drivers/usb/typec/typec_wcove.c +++ b/drivers/usb/typec/typec_wcove.c @@ -118,7 +118,7 @@ static int wcove_typec_func(struct wcove_typec *wcove, tmp.type = ACPI_TYPE_INTEGER; tmp.integer.value = param; - obj = acpi_evaluate_dsm(ACPI_HANDLE(wcove->dev), uuid.b, 1, func, + obj = acpi_evaluate_dsm(ACPI_HANDLE(wcove->dev), &uuid, 1, func, &argv4); if (!obj) { dev_err(wcove->dev, "%s: failed to evaluate _DSM\n", __func__); @@ -314,7 +314,7 @@ static int wcove_typec_probe(struct platform_device *pdev) if (ret) return ret; - if (!acpi_check_dsm(ACPI_HANDLE(&pdev->dev), uuid.b, 0, 0x1f)) { + if (!acpi_check_dsm(ACPI_HANDLE(&pdev->dev), &uuid, 0, 0x1f)) { dev_err(&pdev->dev, "Missing _DSM functions\n"); return -ENODEV; } diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h index 197f3fffc9a7..0682942d6a76 100644 --- a/include/acpi/acpi_bus.h +++ b/include/acpi/acpi_bus.h @@ -61,13 +61,14 @@ bool acpi_ata_match(acpi_handle handle); bool acpi_bay_match(acpi_handle handle); bool acpi_dock_match(acpi_handle handle); -bool acpi_check_dsm(acpi_handle handle, const u8 *uuid, u64 rev, u64 funcs); -union acpi_object *acpi_evaluate_dsm(acpi_handle handle, const u8 *uuid, +bool acpi_check_dsm(acpi_handle handle, const uuid_le *uuid, u64 rev, u64 funcs); +union acpi_object *acpi_evaluate_dsm(acpi_handle handle, const uuid_le *uuid, u64 rev, u64 func, union acpi_object *argv4); static inline union acpi_object * -acpi_evaluate_dsm_typed(acpi_handle handle, const u8 *uuid, u64 rev, u64 func, - union acpi_object *argv4, acpi_object_type type) +acpi_evaluate_dsm_typed(acpi_handle handle, const uuid_le *uuid, u64 rev, + u64 func, union acpi_object *argv4, + acpi_object_type type) { union acpi_object *obj; diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 137e4a3d89c5..66d135003780 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -39,6 +39,7 @@ #include <linux/dynamic_debug.h> #include <linux/module.h> #include <linux/mutex.h> +#include <linux/uuid.h> #include <acpi/acpi_bus.h> #include <acpi/acpi_drivers.h> @@ -457,7 +458,6 @@ struct acpi_osc_context { struct acpi_buffer ret; /* free by caller if success */ }; -acpi_status acpi_str_to_uuid(char *str, u8 *uuid); acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context); /* Indexes into _OSC Capabilities Buffer (DWORDs 2 & 3 are device-specific) */ @@ -741,7 +741,7 @@ static inline bool acpi_driver_match_device(struct device *dev, } static inline union acpi_object *acpi_evaluate_dsm(acpi_handle handle, - const u8 *uuid, + const uuid_le *uuid, int rev, int func, union acpi_object *argv4) { diff --git a/include/linux/pci-acpi.h b/include/linux/pci-acpi.h index 7a4e83a8c89c..917a6ad0f24d 100644 --- a/include/linux/pci-acpi.h +++ b/include/linux/pci-acpi.h @@ -105,7 +105,7 @@ static inline void acpiphp_remove_slots(struct pci_bus *bus) { } static inline void acpiphp_check_host_bridge(struct acpi_device *adev) { } #endif -extern const u8 pci_acpi_dsm_uuid[]; +extern const uuid_le pci_acpi_dsm_uuid; #define DEVICE_LABEL_DSM 0x07 #define RESET_DELAY_DSM 0x08 #define FUNCTION_DELAY_DSM 0x09 diff --git a/sound/soc/intel/skylake/skl-nhlt.c b/sound/soc/intel/skylake/skl-nhlt.c index e3f06672fd6d..b95f659dced5 100644 --- a/sound/soc/intel/skylake/skl-nhlt.c +++ b/sound/soc/intel/skylake/skl-nhlt.c @@ -21,8 +21,9 @@ #include "skl.h" /* Unique identification for getting NHLT blobs */ -static u8 OSC_UUID[16] = {0x6E, 0x88, 0x9F, 0xA6, 0xEB, 0x6C, 0x94, 0x45, - 0xA4, 0x1F, 0x7B, 0x5D, 0xCE, 0x24, 0xC5, 0x53}; +static uuid_le osc_uuid = + UUID_LE(0xA69F886E, 0x6CEB, 0x4594, + 0xA4, 0x1F, 0x7B, 0x5D, 0xCE, 0x24, 0xC5, 0x53); struct nhlt_acpi_table *skl_nhlt_init(struct device *dev) { @@ -37,7 +38,7 @@ struct nhlt_acpi_table *skl_nhlt_init(struct device *dev) return NULL; } - obj = acpi_evaluate_dsm(handle, OSC_UUID, 1, 1, NULL); + obj = acpi_evaluate_dsm(handle, &osc_uuid, 1, 1, NULL); if (obj && obj->type == ACPI_TYPE_BUFFER) { nhlt_ptr = (struct nhlt_resource_desc *)obj->buffer.pointer; nhlt_table = (struct nhlt_acpi_table *) diff --git a/tools/testing/nvdimm/test/iomap.c b/tools/testing/nvdimm/test/iomap.c index 64cae1a5deff..f190f22c53dd 100644 --- a/tools/testing/nvdimm/test/iomap.c +++ b/tools/testing/nvdimm/test/iomap.c @@ -370,7 +370,7 @@ acpi_status __wrap_acpi_evaluate_object(acpi_handle handle, acpi_string path, } EXPORT_SYMBOL(__wrap_acpi_evaluate_object); -union acpi_object * __wrap_acpi_evaluate_dsm(acpi_handle handle, const u8 *uuid, +union acpi_object * __wrap_acpi_evaluate_dsm(acpi_handle handle, const uuid_le *uuid, u64 rev, u64 func, union acpi_object *argv4) { union acpi_object *obj = ERR_PTR(-ENXIO); diff --git a/tools/testing/nvdimm/test/nfit.c b/tools/testing/nvdimm/test/nfit.c index c2187178fb13..145f6ee0234f 100644 --- a/tools/testing/nvdimm/test/nfit.c +++ b/tools/testing/nvdimm/test/nfit.c @@ -1559,7 +1559,7 @@ static unsigned long nfit_ctl_handle; union acpi_object *result; static union acpi_object *nfit_test_evaluate_dsm(acpi_handle handle, - const u8 *uuid, u64 rev, u64 func, union acpi_object *argv4) + const uuid_le *uuid, u64 rev, u64 func, union acpi_object *argv4) { if (handle != &nfit_ctl_handle) return ERR_PTR(-ENXIO); -- 2.11.0

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[alsa-devel] [PATCH] ALSA: info: Use kvzalloc() for a temporary write buffer
by Takashi Iwai 22 May '17

22 May '17

We used to use kmalloc (more exactly, krealloc()) for creating and growing the temporary buffer for text proc write. It can grow up to 16kB, and it's already a bit doubtful whether it's always safe to use kmalloc(). With the recent addition of kvmalloc(), we can have a better chance for succeed of memory allocation, so let's switch to that new API. Signed-off-by: Takashi Iwai <tiwai(a)suse.de> --- sound/core/info.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/sound/core/info.c b/sound/core/info.c index 8ab72e0f5932..fc14ebe751d8 100644 --- a/sound/core/info.c +++ b/sound/core/info.c @@ -344,12 +344,12 @@ static ssize_t snd_info_text_entry_write(struct file *file, } } if (next > buf->len) { - char *nbuf = krealloc(buf->buffer, PAGE_ALIGN(next), - GFP_KERNEL | __GFP_ZERO); + char *nbuf = kvzalloc(PAGE_ALIGN(next), GFP_KERNEL); if (!nbuf) { err = -ENOMEM; goto error; } + kvfree(buf->buffer); buf->buffer = nbuf; buf->len = PAGE_ALIGN(next); } @@ -427,7 +427,7 @@ static int snd_info_text_entry_release(struct inode *inode, struct file *file) single_release(inode, file); kfree(data->rbuffer); if (data->wbuffer) { - kfree(data->wbuffer->buffer); + kvfree(data->wbuffer->buffer); kfree(data->wbuffer); } -- 2.13.0

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[alsa-devel] [PATCH 1/3] ALSA: hda - Apply dual-codec quirk for MSI Z270-Gaming mobo
by Takashi Iwai 22 May '17

22 May '17

MSI Z270-Gamin mobo has also two ALC1220 codecs like Gigabyte AZ370- Gaming mobo. Apply the same quirk to this one. Signed-off-by: Takashi Iwai <tiwai(a)suse.de> --- 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 9c22ad694534..3fdd5af190a4 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -2328,6 +2328,7 @@ static const struct snd_pci_quirk alc882_fixup_tbl[] = { SND_PCI_QUIRK_VENDOR(0x1462, "MSI", ALC882_FIXUP_GPIO3), SND_PCI_QUIRK(0x1458, 0xa002, "Gigabyte EP45-DS3/Z87X-UD3H", ALC889_FIXUP_FRONT_HP_NO_PRESENCE), SND_PCI_QUIRK(0x1458, 0xa0b8, "Gigabyte AZ370-Gaming", ALC1220_FIXUP_GB_DUAL_CODECS), + SND_PCI_QUIRK(0x1462, 0xda57, "MSI Z270-Gaming", ALC1220_FIXUP_GB_DUAL_CODECS), SND_PCI_QUIRK(0x147b, 0x107a, "Abit AW9D-MAX", ALC882_FIXUP_ABIT_AW9D_MAX), SND_PCI_QUIRK_VENDOR(0x1558, "Clevo laptop", ALC882_FIXUP_EAPD), SND_PCI_QUIRK(0x161f, 0x2054, "Medion laptop", ALC883_FIXUP_EAPD), -- 2.13.0

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