linux-kernel - Re: [PATCH] ASoC: use inline function for type safety in snd_soc_substream_to

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Message-ID: <ZjEGrnlQfFeDyLUc@finisterre.sirena.org.uk>
Date: Tue, 30 Apr 2024 23:56:46 +0900
From: Mark Brown <broonie@...nel.org>
To: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc: Liam Girdwood <lgirdwood@...il.com>, Jaroslav Kysela <perex@...ex.cz>,
	Takashi Iwai <tiwai@...e.com>, linux-sound@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ASoC: use inline function for type safety in
 snd_soc_substream_to_rtd()

On Tue, Apr 30, 2024 at 04:09:38PM +0200, Krzysztof Kozlowski wrote:

> -#define snd_soc_substream_to_rtd(substream) \
> -	(struct snd_soc_pcm_runtime *)snd_pcm_substream_chip(substream)
> +
> +static inline struct snd_soc_pcm_runtime *
> +snd_soc_substream_to_rtd(const struct snd_pcm_substream *substream)
> +{
> +	return substream->private_data;
> +}

This is not an obvious direct substitution, we've skipped the
snd_pcm_subsystem_chip() (which is also a macro, but that just suggests
it could do with it's own cleanup) and the commit log didn't mention it.

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