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perf: arm_cspmu: Set irq affinitiy only if overflow interrupt is used

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Don't try to set irq affinity if PMU doesn't have an overflow interrupt.

Fixes: e37dfd6573 ("perf: arm_cspmu: Add support for ARM CoreSight PMU driver")
Signed-off-by: Ilkka Koskinen <ilkka@os.amperecomputing.com>
Link: https://lore.kernel.org/r/20230608203742.3503486-1-ilkka@os.amperecomputing.com
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Ilkka Koskinen 2023-06-08 13:37:42 -07:00 committed by Will Deacon
parent 7a6a9f1c5a
commit 225d757012
1 changed files with 2 additions and 1 deletions
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3
drivers/perf/arm_cspmu/arm_cspmu.c
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@ -1232,7 +1232,8 @@ static struct platform_driver arm_cspmu_driver = {
static void arm_cspmu_set_active_cpu(int cpu, struct arm_cspmu *cspmu)
{
cpumask_set_cpu(cpu, &cspmu->active_cpu);
WARN_ON(irq_set_affinity(cspmu->irq, &cspmu->active_cpu));
if (cspmu->irq)
WARN_ON(irq_set_affinity(cspmu->irq, &cspmu->active_cpu));
}
static int arm_cspmu_cpu_online(unsigned int cpu, struct hlist_node *node)