[alsa-devel] [PATCH 1/2] ASoC: improve the DMI long card code in asoc-core

[Pierre-Louis Bossart]

On 11/20/19 3:37 AM, Jaroslav Kysela wrote:
> Add append_dmi_string() function and make the code more readable.
> 
> Signed-off-by: Jaroslav Kysela <perex at perex.cz>
> Cc: Mark Brown <broonie at kernel.org>
> ---
>   sound/soc/soc-core.c | 66 +++++++++++++++++---------------------------
>   1 file changed, 25 insertions(+), 41 deletions(-)
> 
> diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
> index b4683d4588ee..1d1baf78818c 100644
> --- a/sound/soc/soc-core.c
> +++ b/sound/soc/soc-core.c
> @@ -1755,6 +1755,23 @@ static int is_dmi_valid(const char *field)
>   	return 1;
>   }
>   
> +/*
> + *
> + */

unneeded comments or missing text?

> +static void append_dmi_string(struct snd_soc_card *card, const char *str)
> +{
> +	char *dst = card->dmi_longname;
> +	size_t dst_len = sizeof(card->dmi_longname);
> +	size_t len;
> +
> +	len = strlen(dst);
> +	snprintf(dst + len, dst_len - len, "-%s", str);
> +
> +	len++;	/* skip the separator "-" */
> +	if (len < dst_len)
> +		cleanup_dmi_name(dst + len);
> +}
> +
>   /**
>    * snd_soc_set_dmi_name() - Register DMI names to card
>    * @card: The card to register DMI names
> @@ -1789,61 +1806,36 @@ static int is_dmi_valid(const char *field)
>   int snd_soc_set_dmi_name(struct snd_soc_card *card, const char *flavour)
>   {
>   	const char *vendor, *product, *product_version, *board;
> -	size_t longname_buf_size = sizeof(card->snd_card->longname);
> -	size_t len;
>   
>   	if (card->long_name)
>   		return 0; /* long name already set by driver or from DMI */
>   
> -	/* make up dmi long name as: vendor.product.version.board */
> +	/* make up dmi long name as: vendor-product-version-board */

here you are just fixing a misleading comment, yes?
I don't see any dots to dashes substitution but better ask.