linux-kernel - Re: [PATCH 5/8] ALSA: hrtimer: Avoid direct access to hrtimer clockbase

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Message-ID: <87ectgztki.wl-tiwai@suse.de>
Date: Tue, 12 Aug 2025 13:07:57 +0200
From: Takashi Iwai <tiwai@...e.de>
To: Thomas Weißschuh <thomas.weissschuh@...utronix.de>
Cc: Anna-Maria Behnsen <anna-maria@...utronix.de>,
	Frederic Weisbecker <frederic@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Juri Lelli <juri.lelli@...hat.com>,
	Vincent Guittot <vincent.guittot@...aro.org>,
	Dietmar Eggemann <dietmar.eggemann@....com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Ben Segall <bsegall@...gle.com>,
	Mel Gorman <mgorman@...e.de>,
	Valentin Schneider <vschneid@...hat.com>,
	Matt Wu <wuqiang.matt@...edance.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Jaroslav Kysela <perex@...ex.cz>,
	Takashi Iwai <tiwai@...e.com>,
	Sean Young <sean@...s.org>,
	Mauro Carvalho Chehab <mchehab@...nel.org>,
	Jan Kiszka <jan.kiszka@...mens.com>,
	Kieran Bingham <kbingham@...nel.org>,
	linux-kernel@...r.kernel.org,
	linux-sound@...r.kernel.org,
	linux-media@...r.kernel.org
Subject: Re: [PATCH 5/8] ALSA: hrtimer: Avoid direct access to hrtimer clockbase

On Tue, 12 Aug 2025 08:08:13 +0200,
Thomas Weißschuh wrote:
> 
> The field timer->base->get_time is a private implementation detail and
> should not be accessed outside of the hrtimer core.
> 
> Switch to the equivalent helper.
> 
> Signed-off-by: Thomas Weißschuh <thomas.weissschuh@...utronix.de>
> ---
>  sound/core/hrtimer.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/sound/core/hrtimer.c b/sound/core/hrtimer.c
> index c364bd126ac8b311e3ce899e226ff9fd82c4485f..2d5f4d47071f79d7db24c8f004f0f4154808fdd8 100644
> --- a/sound/core/hrtimer.c
> +++ b/sound/core/hrtimer.c
> @@ -44,7 +44,7 @@ static enum hrtimer_restart snd_hrtimer_callback(struct hrtimer *hrt)
>  	}
>  
>  	/* calculate the drift */
> -	delta = ktime_sub(hrt->base->get_time(), hrtimer_get_expires(hrt));
> +	delta = ktime_sub(hrtimer_cb_get_time(hrt), hrtimer_get_expires(hrt));
>  	if (delta > 0)
>  		ticks += ktime_divns(delta, ticks * resolution);

Acked-by: Takashi Iwai <tiwai@...e.de>


thanks,

Takashi