perf/alibaba_uncore_drw: Avoid placing cpumask on the stack
authorDawei Li <dawei.li@shingroup.cn>
Wed, 3 Apr 2024 15:59:42 +0000 (23:59 +0800)
committerWill Deacon <will@kernel.org>
Tue, 9 Apr 2024 15:47:15 +0000 (16:47 +0100)
commit2f6589df124ee8cbe1772353e533c3fcc4319a24
treef772d554994e35317e7efc8cd6f5a323f27c8dad
parent897fa2c38c076c801bd1f1238af0af927e339c8f
perf/alibaba_uncore_drw: Avoid placing cpumask on the stack

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>
drivers/perf/alibaba_uncore_drw_pmu.c