From: Nam Cao Date: Wed, 5 Feb 2025 10:55:17 +0000 (+0100) Subject: hrtimers: Remove unnecessary NULL check in hrtimer_start_range_ns() X-Git-Tag: v6.15-rc1~7^2~4 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=1cc24f2e766c5a6606b834a677bd58991c1b9781;p=thirdparty%2Flinux.git hrtimers: Remove unnecessary NULL check in hrtimer_start_range_ns() The struct hrtimer::function field can only be changed using hrtimer_setup*() or hrtimer_update_function(), and both already null-check 'function'. Therefore, null-checking 'function' in hrtimer_start_range_ns() is not necessary. Signed-off-by: Nam Cao Signed-off-by: Thomas Gleixner Signed-off-by: Ingo Molnar Link: https://lore.kernel.org/all/4661c571ee87980c340ccc318fc1a473c0c8f6bc.1738746927.git.namcao@linutronix.de --- diff --git a/kernel/time/hrtimer.c b/kernel/time/hrtimer.c index 88ea4bbea9c1e..e883f65cd1751 100644 --- a/kernel/time/hrtimer.c +++ b/kernel/time/hrtimer.c @@ -1316,8 +1316,6 @@ void hrtimer_start_range_ns(struct hrtimer *timer, ktime_t tim, struct hrtimer_clock_base *base; unsigned long flags; - if (WARN_ON_ONCE(!ACCESS_PRIVATE(timer, function))) - return; /* * Check whether the HRTIMER_MODE_SOFT bit and hrtimer.is_soft * match on CONFIG_PREEMPT_RT = n. With PREEMPT_RT check the hard