linux-kernel - Re: [PATCH 1/6] ASoC: topology: Constify an argument of snd_soc_tplg_component

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Date: Tue, 14 May 2024 09:23:56 +0200
From: Amadeusz Sławiński
 <amadeuszx.slawinski@...ux.intel.com>
To: Christophe JAILLET <christophe.jaillet@...adoo.fr>, lgirdwood@...il.com,
 broonie@...nel.org, perex@...ex.cz, tiwai@...e.com,
 cezary.rojewski@...el.com, pierre-louis.bossart@...ux.intel.com,
 peter.ujfalusi@...ux.intel.com, yung-chuan.liao@...ux.intel.com,
 ranjani.sridharan@...ux.intel.com, kai.vehmanen@...ux.intel.com,
 srinivas.kandagatla@...aro.org, bgoswami@...cinc.com, daniel.baluta@....com
Cc: linux-sound@...r.kernel.org, alsa-devel@...a-project.org,
 sound-open-firmware@...a-project.org, linux-kernel@...r.kernel.org,
 kernel-janitors@...r.kernel.org
Subject: Re: [PATCH 1/6] ASoC: topology: Constify an argument of
 snd_soc_tplg_component_load()

On 5/13/2024 7:37 PM, Christophe JAILLET wrote:
> snd_soc_tplg_component_load() does not modify its "*ops" argument. It
> only read some values and stores it in "soc_tplg.ops".
> 
> This argument and the ops field in "struct soc_tplg" can be made const.
> 
> Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
> ---
>   include/sound/soc-topology.h | 2 +-
>   sound/soc/soc-topology.c     | 4 ++--
>   2 files changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/include/sound/soc-topology.h b/include/sound/soc-topology.h
> index f055c6917f6c..1eedd203ac29 100644
> --- a/include/sound/soc-topology.h
> +++ b/include/sound/soc-topology.h
> @@ -178,7 +178,7 @@ static inline const void *snd_soc_tplg_get_data(struct snd_soc_tplg_hdr *hdr)
>   
>   /* Dynamic Object loading and removal for component drivers */
>   int snd_soc_tplg_component_load(struct snd_soc_component *comp,
> -	struct snd_soc_tplg_ops *ops, const struct firmware *fw);
> +	const struct snd_soc_tplg_ops *ops, const struct firmware *fw);
>   int snd_soc_tplg_component_remove(struct snd_soc_component *comp);
>   
>   /* Binds event handlers to dynamic widgets */
> diff --git a/sound/soc/soc-topology.c b/sound/soc/soc-topology.c
> index 90ca37e008b3..b00ec01361c2 100644
> --- a/sound/soc/soc-topology.c
> +++ b/sound/soc/soc-topology.c
> @@ -73,7 +73,7 @@ struct soc_tplg {
>   	int bytes_ext_ops_count;
>   
>   	/* optional fw loading callbacks to component drivers */
> -	struct snd_soc_tplg_ops *ops;
> +	const struct snd_soc_tplg_ops *ops;
>   };
>   
>   /* check we dont overflow the data for this control chunk */
> @@ -2334,7 +2334,7 @@ static int soc_tplg_load(struct soc_tplg *tplg)
>   
>   /* load audio component topology from "firmware" file */
>   int snd_soc_tplg_component_load(struct snd_soc_component *comp,
> -	struct snd_soc_tplg_ops *ops, const struct firmware *fw)
> +	const struct snd_soc_tplg_ops *ops, const struct firmware *fw)
>   {
>   	struct soc_tplg tplg;
>   	int ret;

Yes, makes sense to me.

Reviewed-by: Amadeusz Sławiński <amadeuszx.slawinski@...ux.intel.com>