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authorDawei Li <dawei.li@shingroup.cn>2024-04-03 17:59:43 +0200
committerWill Deacon <will@kernel.org>2024-04-09 17:47:15 +0200
commit60c73240f304a654b66811f7f56a3325201f46de (patch)
tree18b3b391a9f0600e7c3b7d208a943c6fbc4f4cf6 /drivers/perf/arm_cspmu
parentperf/alibaba_uncore_drw: Avoid placing cpumask on the stack (diff)
downloadlinux-60c73240f304a654b66811f7f56a3325201f46de.tar.xz
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perf/arm-cmn: 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/20240403155950.2068109-4-dawei.li@shingroup.cn Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'drivers/perf/arm_cspmu')
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