linux-kernel - Re: [PATCH v2 3/9] ASoC: audio-graph: Identify 'no

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Date:   25 Aug 2020 15:46:00 +0900
From:   Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>
To:     Sameer Pujar <spujar@...dia.com>
Cc:     <broonie@...nel.org>, <perex@...ex.cz>, <tiwai@...e.com>,
        <robh+dt@...nel.org>, <lgirdwood@...il.com>,
        <thierry.reding@...il.com>, <jonathanh@...dia.com>,
        <alsa-devel@...a-project.org>, <linux-tegra@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <sharadg@...dia.com>,
        <mkumard@...dia.com>, <viswanathl@...dia.com>,
        <rlokhande@...dia.com>, <dramesh@...dia.com>,
        <atalambedu@...dia.com>, <nwartikar@...dia.com>,
        <swarren@...dia.com>, <nicoleotsuka@...il.com>
Subject: Re: [PATCH v2 3/9] ASoC: audio-graph: Identify 'no_pcm' DAI links for DPCM


Hi Sameer

> > Other solution is create both snd_soc_find_dai_with_mutex()/without_mutex().
> > I'm not sure which style is best.
> 
> I don't know how complex it is to have a unified solution. But if we
> can protect snd_soc_find_dai() itself, things would be simpler may be
> in long term. Right now there are separate source files for soc-core,
> soc-dai and soc-component, but because of two approaches looks like
> the function need to be moved around and need to be placed in
> soc-core. Also the issue might go unnoticed if LOCKDEP is not enabled.
> 
> May be start with a wrapper for now and eventually unify?

Yeah, it seems has _with_mutex() can be better idea.
I'm posting patch, but I noticed that Mark's branch vs Linus branch
have some mismatch (?), and now I'm asking it to him.
I can post _with_mutex() version as v2 if I could get answer.
After that I'm happy your next patch can re-use it.

Thank you for your help !!

Best regards
---
Kuninori Morimoto