From: Will Deacon Date: Fri, 17 Apr 2015 13:41:29 +0000 (+0100) Subject: arm64: perf: don't warn about missing interrupt-affinity property for PPIs X-Git-Tag: firefly_0821_release~176^2~1834^2~1 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=d795ef9aa8311ca3c5158bda1edbcd14479c101c;p=firefly-linux-kernel-4.4.55.git arm64: perf: don't warn about missing interrupt-affinity property for PPIs PPIs are affine by nature, so the interrupt-affinity property is not used and therefore we shouldn't print a warning in its absence. Reported-by: Maxime Ripard Reviewed-by: Maxime Ripard Signed-off-by: Will Deacon --- diff --git a/arch/arm64/kernel/perf_event.c b/arch/arm64/kernel/perf_event.c index 195991dadc37..2a9cbcb61126 100644 --- a/arch/arm64/kernel/perf_event.c +++ b/arch/arm64/kernel/perf_event.c @@ -1310,7 +1310,7 @@ static const struct of_device_id armpmu_of_device_ids[] = { static int armpmu_device_probe(struct platform_device *pdev) { - int i, *irqs; + int i, irq, *irqs; if (!cpu_pmu) return -ENODEV; @@ -1319,6 +1319,11 @@ static int armpmu_device_probe(struct platform_device *pdev) if (!irqs) return -ENOMEM; + /* Don't bother with PPIs; they're already affine */ + irq = platform_get_irq(pdev, 0); + if (irq >= 0 && irq_is_percpu(irq)) + return 0; + for (i = 0; i < pdev->num_resources; ++i) { struct device_node *dn; int cpu;