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-rw-r--r--arch/mips/ralink/irq.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/mips/ralink/irq.c b/arch/mips/ralink/irq.c
index d9807d0587cd..320b1f1043ff 100644
--- a/arch/mips/ralink/irq.c
+++ b/arch/mips/ralink/irq.c
@@ -166,6 +166,7 @@ static int __init intc_of_init(struct device_node *node,
irq_set_chained_handler(irq, ralink_intc_irq_handler);
irq_set_handler_data(irq, domain);
+ /* tell the kernel which irq is used for performance monitoring */
cp0_perfcount_irq = irq_create_mapping(domain, 9);
return 0;