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authorWill Deacon <will.deacon@arm.com>2015-04-17 14:41:29 +0100
committerWill Deacon <will.deacon@arm.com>2015-04-30 12:11:23 +0100
commitd795ef9aa8311ca3c5158bda1edbcd14479c101c (patch)
treea66bac616003b4a7657581a8b1eadf1d1a6aaad1
parent2cff98b99c469880ce830cbcde015b53b67e0a7b (diff)
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 <maxime.ripard@free-electrons.com> Reviewed-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
-rw-r--r--arch/arm64/kernel/perf_event.c7
1 files changed, 6 insertions, 1 deletions
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;