Re: [PATCH v33 18/18] ALSA: virtio: settle PCM control state from late replies

[sashiko-bot@kernel.org]

> From: Joonho Lee <mynameisjune111@gmail.com>
> 
> A native PCM control request that times out remains owned by the device.
> The driver therefore stops sending PCM control requests for the stream
> until the device state is known. Only a device reset cleared that state,
> and a reset happens only on remove or freeze. One reply arriving after
> msg_timeout_ms left open, hw_params, prepare and trigger returning -EIO
> until the driver was rebound or the guest resumed from suspend.
> 
> Keep the ordering guarantee, but let the reply resolve it. After a
> synchronous wait times out, decide under the control queue lock whether
> the reply has already completed. If not, mark the request late and count
> it on the substream. When the device completes the request, apply its
> result to the native device state and clear the unknown state once no
> late request remains:
> [ ... ]
> queue and stream locks before restoring capture_stopping and
> capture_quiet_sequence.
> 
> Assisted-by: LLM
> Signed-off-by: Joonho Lee <mynameisjune111@gmail.com>

Sashiko has reviewed this patch and found no issues.

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Sashiko AI review · https://sashiko.dev/#/patchset/20261113-fix-virtio-snd-recovery-final-v33-0-13a934ad5ece@gmail.com?part=18