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Diffstat (limited to 'arch/arm/kernel/perf_event_cpu.c')
-rw-r--r--arch/arm/kernel/perf_event_cpu.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/arch/arm/kernel/perf_event_cpu.c b/arch/arm/kernel/perf_event_cpu.c
index 91c7ba182dcd..213919ba326f 100644
--- a/arch/arm/kernel/perf_event_cpu.c
+++ b/arch/arm/kernel/perf_event_cpu.c
@@ -303,12 +303,17 @@ static int probe_current_pmu(struct arm_pmu *pmu)
static int of_pmu_irq_cfg(struct platform_device *pdev)
{
- int i;
+ int i, irq;
int *irqs = kcalloc(pdev->num_resources, sizeof(*irqs), GFP_KERNEL);
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;
@@ -317,7 +322,7 @@ static int of_pmu_irq_cfg(struct platform_device *pdev)
i);
if (!dn) {
pr_warn("Failed to parse %s/interrupt-affinity[%d]\n",
- of_node_full_name(dn), i);
+ of_node_full_name(pdev->dev.of_node), i);
break;
}