perf/alibaba_uncore_drw: Avoid placing cpumask on the stack

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In general it's preferable to avoid placing cpumasks on the stack, as
for large values of NR_CPUS these can consume significant amounts of
stack space and make stack overflows more likely.

Use cpumask_any_and_but() to avoid the need for a temporary cpumask on
the stack.

Suggested-by: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Dawei Li <dawei.li@shingroup.cn>
Reviewed-by: Shuai Xue <xueshuai@linux.alibaba.com>
Link: https://lore.kernel.org/r/20240403155950.2068109-3-dawei.li@shingroup.cn
Signed-off-by: Will Deacon <will@kernel.org>

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Dawei Li 2024-04-03 23:59:42 +08:00 • committed by Will Deacon

parent 897fa2c38c

commit 2f6589df12

1 changed files with 3 additions and 7 deletions

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drivers/perf/alibaba_uncore_drw_pmu.c

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