linux-kernel - Re: [PATCH 4/4] ASoC: fsl: drop unneeded snd_soc_dai_set

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Date:   Wed, 17 Feb 2021 22:30:39 -0800
From:   Nicolin Chen <nicoleotsuka@...il.com>
To:     Julia Lawall <Julia.Lawall@...ia.fr>
Cc:     Timur Tabi <timur@...nel.org>, kernel-janitors@...r.kernel.org,
        Xiubo Li <Xiubo.Lee@...il.com>,
        Fabio Estevam <festevam@...il.com>,
        Shengjiu Wang <shengjiu.wang@...il.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>, alsa-devel@...a-project.org,
        linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 4/4] ASoC: fsl: drop unneeded snd_soc_dai_set_drvdata

On Sat, Feb 13, 2021 at 11:19:07AM +0100, Julia Lawall wrote:
> snd_soc_dai_set_drvdata is not needed when the set data comes from
> snd_soc_dai_get_drvdata or dev_get_drvdata.  The problem was fixed
> usingthe following semantic patch: (http://coccinelle.lip6.fr/)
> 
> // <smpl>
> @@
> expression x,y,e;
> @@
> 	x = dev_get_drvdata(y->dev)
> 	... when != x = e
> -	snd_soc_dai_set_drvdata(y,x);
> 
> @@
> expression x,y,e;
> @@
> 	x = snd_soc_dai_get_drvdata(y)
> 	... when != x = e
> -	snd_soc_dai_set_drvdata(y,x);
> // </smpl>
> 
> Signed-off-by: Julia Lawall <Julia.Lawall@...ia.fr>

Acked-by: Nicolin Chen <nicoleotsuka@...il.com>