From: Sean Young <sean@mess.org>
To: "Thomas Weißschuh" <thomas.weissschuh@linutronix.de>
Cc: Anna-Maria Behnsen <anna-maria@linutronix.de>,
Frederic Weisbecker <frederic@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
Juri Lelli <juri.lelli@redhat.com>,
Vincent Guittot <vincent.guittot@linaro.org>,
Dietmar Eggemann <dietmar.eggemann@arm.com>,
Steven Rostedt <rostedt@goodmis.org>,
Ben Segall <bsegall@google.com>, Mel Gorman <mgorman@suse.de>,
Valentin Schneider <vschneid@redhat.com>,
Matt Wu <wuqiang.matt@bytedance.com>,
Andrew Morton <akpm@linux-foundation.org>,
Jaroslav Kysela <perex@perex.cz>, Takashi Iwai <tiwai@suse.com>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Jan Kiszka <jan.kiszka@siemens.com>,
Kieran Bingham <kbingham@kernel.org>,
linux-kernel@vger.kernel.org, linux-sound@vger.kernel.org,
linux-media@vger.kernel.org
Subject: Re: [PATCH 6/8] media: pwm-ir-tx: Avoid direct access to hrtimer clockbase
Date: Tue, 12 Aug 2025 13:06:58 +0100 [thread overview]
Message-ID: <aJsuYlRDgmpdQ_rK@gofer.mess.org> (raw)
In-Reply-To: <20250812-hrtimer-cleanup-get_time-v1-6-b962cd9d9385@linutronix.de>
On Tue, Aug 12, 2025 at 08:08:14AM +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 an equivalent higher-level helper.
>
> Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
> ---
> drivers/media/rc/pwm-ir-tx.c | 5 +----
> 1 file changed, 1 insertion(+), 4 deletions(-)
>
> diff --git a/drivers/media/rc/pwm-ir-tx.c b/drivers/media/rc/pwm-ir-tx.c
> index 84533fdd61aa6ce3c0f8593aaefe5919fd05c7f9..047472dc9244afe0e56e505be20f36fd7d9c449a 100644
> --- a/drivers/media/rc/pwm-ir-tx.c
> +++ b/drivers/media/rc/pwm-ir-tx.c
> @@ -117,7 +117,6 @@ static int pwm_ir_tx_atomic(struct rc_dev *dev, unsigned int *txbuf,
> static enum hrtimer_restart pwm_ir_timer(struct hrtimer *timer)
> {
> struct pwm_ir *pwm_ir = container_of(timer, struct pwm_ir, timer);
> - ktime_t now;
>
> /*
> * If we happen to hit an odd latency spike, loop through the
> @@ -139,9 +138,7 @@ static enum hrtimer_restart pwm_ir_timer(struct hrtimer *timer)
> hrtimer_add_expires_ns(timer, ns);
>
> pwm_ir->txbuf_index++;
> -
> - now = timer->base->get_time();
> - } while (hrtimer_get_expires_tv64(timer) < now);
> + } while (hrtimer_expires_remaining(timer) > 0);
Acked-by: Sean Young <sean@mess.org>
next prev parent reply other threads:[~2025-08-12 12:07 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-12 6:08 [PATCH 0/8] hrtimer: Remove hrtimer_clock_base::get_time Thomas Weißschuh
2025-08-12 6:08 ` [PATCH 1/8] posix-timers: Avoid direct access to hrtimer clockbase Thomas Weißschuh
2025-09-09 8:56 ` [tip: timers/core] " tip-bot2 for Thomas Weißschuh
2025-08-12 6:08 ` [PATCH 2/8] timers/itimer: " Thomas Weißschuh
2025-09-09 8:56 ` [tip: timers/core] " tip-bot2 for Thomas Weißschuh
2025-08-12 6:08 ` [PATCH 3/8] sched/core: " Thomas Weißschuh
2025-09-09 8:56 ` [tip: timers/core] " tip-bot2 for Thomas Weißschuh
2025-08-12 6:08 ` [PATCH 4/8] lib: test_objpool: " Thomas Weißschuh
2025-09-09 8:56 ` [tip: timers/core] " tip-bot2 for Thomas Weißschuh
2025-08-12 6:08 ` [PATCH 5/8] ALSA: hrtimer: " Thomas Weißschuh
2025-08-12 11:07 ` Takashi Iwai
2025-09-09 8:56 ` [tip: timers/core] " tip-bot2 for Thomas Weißschuh
2025-08-12 6:08 ` [PATCH 6/8] media: pwm-ir-tx: " Thomas Weißschuh
2025-08-12 12:06 ` Sean Young [this message]
2025-09-09 8:56 ` [tip: timers/core] " tip-bot2 for Thomas Weißschuh
2025-08-12 6:08 ` [PATCH 7/8] hrtimer: Use hrtimer_cb_get_time() helper Thomas Weißschuh
2025-09-09 8:56 ` [tip: timers/core] " tip-bot2 for Thomas Weißschuh
2025-08-12 6:08 ` [PATCH 8/8] hrtimer: Remove hrtimer_clock_base::get_time Thomas Weißschuh
2025-08-12 7:42 ` Peter Zijlstra
2025-08-12 7:51 ` Thomas Weißschuh
2025-09-09 8:56 ` [tip: timers/core] " tip-bot2 for Thomas Weißschuh
2025-08-12 7:43 ` [PATCH 0/8] " Peter Zijlstra
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