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f0061c18c1
linux/sound/core
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Takashi Iwai f0061c18c1 ALSA: pcm: Avoid reference to status->state 
In the PCM core and driver code, there are lots place referring to the
current PCM state via runtime->status->state.  This patch introduced a
local PCM state in runtime itself and replaces those references with
runtime->state.  It has improvements in two aspects:

- The reduction of a indirect access leads to more code optimization

- It avoids a possible (unexpected) modification of the state via mmap
  of the status record

The status->state is updated together with runtime->state, so that
user-space can still read the current state via mmap like before,
too.

This patch touches only the ALSA core code.  The changes in each
driver will follow in later patches.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20220926135558.26580-2-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2022-09-27 08:44:05 +02:00
..
oss ALSA: pcm: Avoid reference to status->state 2022-09-27 08:44:05 +02:00
seq ALSA: seq: Fix data-race at module auto-loading 2022-08-24 07:59:06 +02:00
compress_offload.c ALSA: compress: Fix kernel doc warnings 2022-07-13 13:42:36 +02:00
control_compat.c x86: Remove toolchain check for X32 ABI capability 2022-03-15 10:32:48 +01:00
control_led.c ALSA: control-led: Replace sprintf() with sysfs_emit() 2022-08-02 16:03:43 +02:00
control.c ALSA: control: Re-order bounds checking in get_ctl_id_hash() 2022-08-26 17:17:22 +02:00
ctljack.c ALSA: Convert strlcpy to strscpy when return value is unused 2021-01-08 09:30:05 +01:00
device.c ALSA: core: Fix missing return value comments for kernel docs 2022-07-13 13:42:38 +02:00
hrtimer.c ALSA: timer: Replace tasklet with work 2020-09-09 18:32:52 +02:00
hwdep_compat.c ALSA: compat_ioctl: avoid compat_alloc_user_space 2020-09-21 10:37:07 +02:00
hwdep.c ALSA: core: Fix assignment in if condition 2021-06-09 17:30:22 +02:00
info_oss.c ALSA: oss: remove useless NULL check before kfree 2021-12-06 10:08:13 +01:00
info.c ALSA: info: Fix llseek return value when using callback 2022-08-17 15:13:30 +02:00
init.c ALSA: core: Fix double-free at snd_card_new() 2022-09-19 14:36:06 +02:00
isadma.c sound updates for 6.0-rc1 2022-08-06 10:19:51 -07:00
jack.c ALSA: jack: Access input_dev under mutex 2022-04-12 12:19:05 +02:00
Kconfig ALSA: control: Add input validation 2022-06-15 07:45:28 +02:00
Makefile m68k: coldfire: drop ISA_DMA_API support 2022-05-16 13:18:30 +10:00
memalloc_local.h ALSA: memalloc: remove snd_dma_sg_ops declaration 2022-09-09 09:09:40 +02:00
memalloc.c ALSA: memalloc: use __GFP_RETRY_MAYFAIL for DMA mem allocs 2022-09-26 08:23:37 +02:00
memory.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
misc.c ALSA: core: Add async signal helpers 2022-07-29 12:57:10 +02:00
pcm_compat.c ALSA: pcm: Avoid reference to status->state 2022-09-27 08:44:05 +02:00
pcm_dmaengine.c ALSA: dmaengine: Fix missing return value comments for kernel docs 2022-07-13 13:42:35 +02:00
pcm_drm_eld.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
pcm_iec958.c ALSA: iec958: Split status creation and fill 2021-06-08 17:05:41 +02:00
pcm_lib.c ALSA: pcm: Avoid reference to status->state 2022-09-27 08:44:05 +02:00
pcm_local.h ALSA: memalloc: Support for non-contiguous page allocation 2021-10-18 13:32:10 +02:00
pcm_memory.c ALSA: pcm: Fix missing return value comments for kernel docs 2022-07-13 13:42:34 +02:00
pcm_misc.c ALSA: pcm: Test for "silence" field in struct "pcm_format_data" 2022-04-11 09:27:56 +02:00
pcm_native.c ALSA: pcm: Avoid reference to status->state 2022-09-27 08:44:05 +02:00
pcm_param_trace.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pcm_timer.c ALSA: timer: Constify snd_timer_hardware definitions 2020-01-03 09:24:07 +01:00
pcm_trace.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pcm.c ALSA: pcm: Avoid reference to status->state 2022-09-27 08:44:05 +02:00
rawmidi_compat.c ALSA: rawmidi: Add framing mode 2021-05-17 16:02:44 +02:00
rawmidi.c ALSA: rawmidi: Take buffer refcount while draining output 2022-06-20 09:36:04 +02:00
seq_device.c ALSA: seq: Fix a potential UAF by wrong private_free call order 2021-09-30 14:13:22 +02:00
sound_oss.c ALSA: core: Fix assignment in if condition 2021-06-09 17:30:22 +02:00
sound.c ALSA: core: Fix assignment in if condition 2021-06-09 17:30:22 +02:00
timer_compat.c ALSA: Convert strlcpy to strscpy when return value is unused 2021-01-08 09:30:05 +01:00
timer.c ALSA: timer: Use deferred fasync helper 2022-07-29 12:57:11 +02:00
vmaster.c ALSA: core: Fix missing return value comments for kernel docs 2022-07-13 13:42:38 +02:00