perf/thunderx2: Avoid placing cpumask on the stack
authorDawei Li <dawei.li@shingroup.cn>
Wed, 3 Apr 2024 15:59:50 +0000 (23:59 +0800)
committerWill Deacon <will@kernel.org>
Tue, 9 Apr 2024 15:47:16 +0000 (16:47 +0100)
commit595275ca498485667039e8c190453a9a684687cb
treeee60846553cf8481b2ff65d6fa95c9aed86d29a8
parentfc85cee97029dee3acb4dcefe4af01b8f8022699
perf/thunderx2: 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>
Link: https://lore.kernel.org/r/20240403155950.2068109-11-dawei.li@shingroup.cn
Signed-off-by: Will Deacon <will@kernel.org>
drivers/perf/thunderx2_pmu.c