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| author | Cristian Ciocaltea <cristian.ciocaltea@collabora.com> | 2025-05-26 17:07:47 +0300 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2025-06-09 09:48:51 +0200 |
| commit | 9cea7425595697802e8d55a322a251999554b8b1 (patch) | |
| tree | 2c6f1a4c5f1ad654d6395b2ed52ae39b3151ebce /rust/helpers/platform.c | |
| parent | f2d6d660e8fd5f4467e80743f82119201e67fa9c (diff) | |
ALSA: usb-audio: Remove unneeded wmb() in mixer_quirks
Adding a memory barrier before wake_up() in
snd_usb_soundblaster_remote_complete() is supposed to ensure the write
to mixer->rc_code is visible in wait_event_interruptible() from
snd_usb_sbrc_hwdep_read().
However, this is not really necessary, since wake_up() is just a wrapper
over __wake_up() which already executes a full memory barrier before
accessing the state of the task to be waken up.
Drop the redundant call to wmb() and implicitly fix the checkpatch
complaint:
WARNING: memory barrier without comment
Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20250526-dualsense-alsa-jack-v1-8-1a821463b632@collabora.com
Diffstat (limited to 'rust/helpers/platform.c')
0 files changed, 0 insertions, 0 deletions