Re: [PATCH RESEND] ALSA: pcm_drm_eld: rate-limit ELD parsing errors

[Takashi Iwai]

On Sat, 16 May 2026 16:12:44 +0200,
Francesco Saverio Pavone wrote:
> 
> 
> Mirror of Mark Brown's ASoC: hdac_hdmi rate-limit patch (commit
> [lkml.kernel.org/lkml/2025/6/13/1380]) for the generic snd_parse_eld()
> helper used by ASoC hdmi-codec.
> 
> When a HDMI sink is disconnected (e.g. a board with two HDMI outputs and
> only one cable), userspace audio servers like PipeWire keep probing the
> disconnected card and trigger:
> 
>     HDMI: Unknown ELD version 0
> 
> at every probe ― easily 30+ messages per burst on rk3588. The same
> applies to malformed ELD (MNL out of range). Both conditions are
> expected when no sink is attached; rate-limit the dev_info() so the
> kernel ring buffer does not fill up.
> 
> Signed-off-by: Francesco Saverio Pavone <pavone.lawyer@xxxxxxxxx>

Applied now.  Thanks.


Takashi