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

[Mark Rutland <mark.rutland@arm.com>]

On Tue, Aug 20, 2019 at 04:57:45PM +0100, Raphael Gault wrote:

It would be worth having a body for the commit message like:

| 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> explciitly.

... and with that, my Acked-by stands.

Thanks,
Mark.

> Acked-by: Mark Rutland <mark.rutland@arm.com>
> Signed-off-by: Raphael Gault <raphael.gault@arm.com>
> ---
>  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
>