From: Yury Norov <yury.norov@gmail.com>
To: linux-kernel@vger.kernel.org, John Stultz <jstultz@google.com>,
Thomas Gleixner <tglx@linutronix.de>,
Stephen Boyd <sboyd@kernel.org>
Cc: "Yury Norov [NVIDIA]" <yury.norov@gmail.com>
Subject: [PATCH 1/2] clocksource: fix opencoded cpumask_any_but() in clocksource_verify_choose_cpus()
Date: Wed, 4 Jun 2025 19:25:47 -0400 [thread overview]
Message-ID: <20250604232550.40491-2-yury.norov@gmail.com> (raw)
In-Reply-To: <20250604232550.40491-1-yury.norov@gmail.com>
From: Yury Norov [NVIDIA] <yury.norov@gmail.com>
cpumask_any_but() is more verbose than cpumask_first() followed by
cpumask_next(). Use it in clocksource_verify_choose_cpus().
Signed-off-by: Yury Norov [NVIDIA] <yury.norov@gmail.com>
---
kernel/time/clocksource.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c
index 4b005b2f3ef5..2e24ce884272 100644
--- a/kernel/time/clocksource.c
+++ b/kernel/time/clocksource.c
@@ -323,9 +323,7 @@ static void clocksource_verify_choose_cpus(void)
return;
/* Make sure to select at least one CPU other than the current CPU. */
- cpu = cpumask_first(cpu_online_mask);
- if (cpu == smp_processor_id())
- cpu = cpumask_next(cpu, cpu_online_mask);
+ cpu = cpumask_any_but(cpu_online_mask, smp_processor_id());
if (WARN_ON_ONCE(cpu >= nr_cpu_ids))
return;
cpumask_set_cpu(cpu, &cpus_chosen);
--
2.43.0
next prev parent reply other threads:[~2025-06-04 23:25 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-04 23:25 [PATCH 0/2] clocksource: use better cpumask API where appropriate Yury Norov
2025-06-04 23:25 ` Yury Norov [this message]
2025-06-05 18:13 ` [PATCH 1/2] clocksource: fix opencoded cpumask_any_but() in clocksource_verify_choose_cpus() John Stultz
2025-06-04 23:25 ` [PATCH 2/2] clocksource: fix opencoded cpumask_next_wrap() Yury Norov
2025-06-05 18:11 ` John Stultz
2025-06-07 14:11 [PATCH 0/2] clocksource: Use better cpumask API where appropriate Yury Norov
2025-06-07 14:11 ` [PATCH 1/2] clocksource: Fix opencoded cpumask_any_but() in clocksource_verify_choose_cpus() Yury Norov
2025-06-09 10:03 ` Thomas Gleixner
2025-06-09 14:33 ` Yury Norov
2025-06-10 9:03 ` Thomas Gleixner
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