linux-kernel - Re: [PATCH v2 1/1] ALSA: control: Use list_for_each_entry

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Message-ID: <87h6frdxz2.wl-tiwai@suse.de>
Date: Wed, 24 Apr 2024 09:24:49 +0200
From: Takashi Iwai <tiwai@...e.de>
To: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc: Takashi Iwai <tiwai@...e.de>,
	linux-sound@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Jaroslav Kysela <perex@...ex.cz>,
	Takashi Iwai <tiwai@...e.com>
Subject: Re: [PATCH v2 1/1] ALSA: control: Use list_for_each_entry_safe()

On Tue, 23 Apr 2024 23:10:22 +0200,
Andy Shevchenko wrote:
> 
> Instead of reiterating the list, use list_for_each_entry_safe()
> that allows to continue without starting over.
> 
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
> Reviewed-by: Jaroslav Kysela <perex@...ex.cz>
> ---
> v2: added tag (Jaroslav)

We have a similar repeat in snd_ctl_led_reset().
Wouldn't it be better to catch both?


thanks,

Takashi

>  sound/core/control_led.c | 9 +++------
>  1 file changed, 3 insertions(+), 6 deletions(-)
> 
> diff --git a/sound/core/control_led.c b/sound/core/control_led.c
> index 061a8ea23340..ea95405c76a4 100644
> --- a/sound/core/control_led.c
> +++ b/sound/core/control_led.c
> @@ -290,16 +290,13 @@ static void snd_ctl_led_clean(struct snd_card *card)
>  {
>  	unsigned int group;
>  	struct snd_ctl_led *led;
> -	struct snd_ctl_led_ctl *lctl;
> +	struct snd_ctl_led_ctl *lctl, *_lctl;
>  
>  	for (group = 0; group < MAX_LED; group++) {
>  		led = &snd_ctl_leds[group];
> -repeat:
> -		list_for_each_entry(lctl, &led->controls, list)
> -			if (!card || lctl->card == card) {
> +		list_for_each_entry_safe(lctl, _lctl, &led->controls, list)
> +			if (!card || lctl->card == card)
>  				snd_ctl_led_ctl_destroy(lctl);
> -				goto repeat;
> -			}
>  	}
>  }
>  
> -- 
> 2.43.0.rc1.1336.g36b5255a03ac
>