linux/sound
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
..
ac97 ALSA: ac97: Replace sprintf() with sysfs_emit() 2022-08-02 16:03:41 +02:00
aoa ALSA: aoa: Replace sprintf() with sysfs_emit() 2022-08-02 16:03:42 +02:00
arm ASoC: pxa: ac97: use normal MMIO accessors 2022-05-07 22:55:49 +02:00
atmel
core ALSA: pcm: Avoid reference to status->state 2022-09-27 08:44:05 +02:00
drivers ALSA: dummy: Add customizable volume min/max. 2022-09-12 09:52:10 +02:00
firewire ALSA: firewire: Remove some left-over license text in sound/firewire 2022-09-27 08:42:18 +02:00
hda Merge branch 'for-linus' into for-next 2022-09-22 13:54:20 +02:00
i2c
isa ALSA: es18xx: Remove the unneeded result variable 2022-09-20 13:33:55 +02:00
mips
oss sound: oss: dmasound: remove software_input_volume declaration 2022-09-09 09:11:06 +02:00
parisc
pci ALSA: hda/hdmi: Limit the maximal count of PCM devices to 8 2022-09-26 08:23:05 +02:00
pcmcia ALSA: pdaudiocf: Drop superfluous GFP setup 2022-08-24 08:00:26 +02:00
ppc ALSA: ppc: Switch to use for_each_child_of_node() macro 2022-09-17 10:01:04 +02:00
sh
soc ALSA: hda/hdmi: Use only dynamic PCM device allocation 2022-09-22 13:58:16 +02:00
sparc
spi sound:spi: remove reference to AVR32 in Atmel AT73C213 DAC driver 2022-08-03 11:11:26 +02:00
synth
usb ALSA: usb-audio: Properly refcounting clock rate 2022-09-20 20:12:50 +02:00
virtio
x86 ALSA: x86: intel_hdmi_audio: use pm_runtime_resume_and_get() 2022-06-17 10:46:38 +02:00
xen xen/sndfront: use xenbus_setup_ring() and xenbus_teardown_ring() 2022-05-19 14:22:08 +02:00
ac97_bus.c
Kconfig
last.c
Makefile
sound_core.c