[PATCH] arm64: perf_event: Add missing header needed for smp_processor_id()

[Raphael Gault]

Acked-by: Mark Rutland <mark.rutland@xxxxxxx>
Signed-off-by: Raphael Gault <raphael.gault@xxxxxxx>
---
 arch/arm64/kernel/perf_event.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/kernel/perf_event.c b/arch/arm64/kernel/perf_event.c
index 96e90e270042..24575c0a0065 100644
--- a/arch/arm64/kernel/perf_event.c
+++ b/arch/arm64/kernel/perf_event.c
@@ -19,6 +19,7 @@
 #include <linux/of.h>
 #include <linux/perf/arm_pmu.h>
 #include <linux/platform_device.h>
+#include <linux/smp.h>
 
 /* ARMv8 Cortex-A53 specific event types. */
 #define ARMV8_A53_PERFCTR_PREF_LINEFILL				0xC2
-- 
2.17.1