From: sashiko-bot@kernel.org
To: "Shrikanth Hegde" <sshegde@linux.ibm.com>,
linux-perf-users@vger.kernel.org
Subject: Re: [PATCH 4/5] cpuidle: Use cpumask_intersects_and where applicable
Date: Wed, 11 Nov 2026 08:03:09 +0000 [thread overview]
Message-ID: <sashiko-outbox-208560@kernel.org> (raw)
In-Reply-To: <20261111075945.3930230-5-sshegde@linux.ibm.com>
> cpumask_first_and_and returns, usually the first CPU in the intersection
> of the three cpumasks. However, if the returned CPU is not used or
> only to check it against nr_cpu_ids, that implies to check whether the
> three cpumasks have a bit in common. I.e use cpumask_intersects_and.
>
> cpumask_first_and_and uses ffs on (addr1[idx] & addr2[idx] & addr3[idx])
> whereas cpumask_intersects_and checks only
> (addr1[idx] & addr2[idx] & addr3[idx]).
>
> So replace such an occurrence.
>
> Signed-off-by: Shrikanth Hegde <sshegde@linux.ibm.com>
Sashiko has reviewed this patch and found no issues.
--
Sashiko AI review · https://sashiko.dev/#/patchset/20261111075945.3930230-1-sshegde@linux.ibm.com?part=4
next prev parent reply other threads:[~2026-11-11 8:03 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-11 7:59 [PATCH 0/5] cpumask: Use cpumask_intersects* APIs where applicable Shrikanth Hegde
2026-11-11 7:59 ` [PATCH 1/5] sched/rt: cpupri_find: Use cpumask_intersects " Shrikanth Hegde
2026-11-11 8:06 ` sashiko-bot
2026-11-11 7:59 ` [PATCH 2/5] cpu/hotplug: " Shrikanth Hegde
2026-11-11 8:09 ` sashiko-bot
2026-11-11 7:59 ` [PATCH 3/5] perf: " Shrikanth Hegde
2026-11-11 8:20 ` sashiko-bot
2026-11-11 7:59 ` [PATCH 4/5] cpuidle: Use cpumask_intersects_and " Shrikanth Hegde
2026-11-11 8:03 ` sashiko-bot [this message]
2026-11-11 7:59 ` [PATCH 5/5] arch_topology: Use cpumask_intersects " Shrikanth Hegde
2026-11-11 8:03 ` sashiko-bot
2026-11-11 10:20 ` Sudeep Holla
2026-11-11 9:16 ` [PATCH 0/5] cpumask: Use cpumask_intersects* APIs " Peter Zijlstra
2026-11-11 9:22 ` Shrikanth Hegde
2026-11-11 10:10 ` Peter Zijlstra
2026-11-12 7:09 ` Shrikanth Hegde
2026-11-11 16:38 ` Yury Norov
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