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arm64: perf_event: Add missing header needed for smp_processor_id()

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In perf_event.c we use smp_processor_id(), but we haven't included
<linux/smp.h> where it is defined, and rely on this being pulled in
via a transitive include. Let's make this more robust by including
<linux.smp.h> explicitly.

Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Raphael Gault <raphael.gault@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Raphael Gault 2019-08-20 16:57:45 +01:00 committed by Will Deacon
parent 228f855fb5
commit d91cc2f46a
1 changed files with 1 additions and 0 deletions
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arch/arm64/kernel/perf_event.c
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@ -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