From: sashiko-bot@kernel.org
To: "Joonho Lee" <mynameisjune111@gmail.com>
Cc: virtualization@lists.linux.dev,
"Michael S. Tsirkin" <mst@redhat.com>,
"Eugenio Perez" <eperezma@redhat.com>
Subject: Re: [PATCH v2 4/5] ALSA: virtio: Keep PCM DMA buffers alive through device ownership
Date: Tue, 13 Oct 2026 08:01:23 +0000 [thread overview]
Message-ID: <sashiko-outbox-169218@kernel.org> (raw)
In-Reply-To: <101a1771075d6ba980f25f4ac56848a1d38d8e4a.1791877396.git.mynameisjune111@gmail.com>
> Retain references to the pages backing ALSA's vmalloc buffer until its
> queued I/O messages are freed. On NOMMU systems, use driver-owned memory
> for DMA and copy playback data before submission and capture data after
> completion, so ALSA buffer release cannot invalidate an active request.
>
> Validate the PCM buffer and each period before building scatterlists.
> Clamp device-reported capture lengths to the message capacity before
> advancing the hardware pointer, preventing an oversized completion from
> accounting bytes beyond the buffer actually submitted.
>
> Fixes: f40a28679e0b ("ALSA: virtio: handling control and I/O messages for the PCM device")
> Assisted-by: LLM
> Signed-off-by: Joonho Lee <mynameisjune111@gmail.com>
Sashiko has reviewed this patch and found no issues. It looks great!
--
Sashiko AI review · https://sashiko.dev/#/patchset/cover.1791877396.git.mynameisjune111@gmail.com?part=4
next prev parent reply other threads:[~2026-10-13 8:01 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-13 7:43 [PATCH v2 0/5] ALSA: virtio: Fix request lifetime and error recovery Joonho Lee
2026-10-13 7:43 ` [PATCH v2 1/5] ALSA: virtio: Propagate PCM send failures through ACK Joonho Lee
2026-10-13 7:54 ` sashiko-bot
2026-10-13 7:43 ` [PATCH v2 2/5] ALSA: virtio: Recover PCM state after a failed start Joonho Lee
2026-10-13 8:04 ` sashiko-bot
2026-10-13 8:58 ` Joonho Lee
2026-10-13 7:43 ` [PATCH v2 3/5] ALSA: virtio: Retain queued messages through device reset Joonho Lee
2026-10-13 7:53 ` sashiko-bot
2026-10-13 7:43 ` [PATCH v2 4/5] ALSA: virtio: Keep PCM DMA buffers alive through device ownership Joonho Lee
2026-10-13 8:01 ` sashiko-bot [this message]
2026-10-13 7:43 ` [PATCH v2 5/5] ALSA: virtio: Keep control payloads alive through DMA completion Joonho Lee
2026-10-13 7:52 ` sashiko-bot
2026-10-13 8:59 ` Joonho Lee
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=sashiko-outbox-169218@kernel.org \
--to=sashiko-bot@kernel.org \
--cc=eperezma@redhat.com \
--cc=mst@redhat.com \
--cc=mynameisjune111@gmail.com \
--cc=sashiko-reviews@lists.linux.dev \
--cc=virtualization@lists.linux.dev \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.