[PATCH 3/8] arm: perf: use IDR types for CPU PMUs

[Stephen Boyd]

On 10/21/2014 06:11 AM, Mark Rutland wrote:
>  arch/arm/kernel/perf_event.c     | 6 +++++-
>  arch/arm/kernel/perf_event_cpu.c | 2 +-
>  2 files changed, 6 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm/kernel/perf_event.c b/arch/arm/kernel/perf_event.c
> index ae96b98..f0bbd3d 100644
> --- a/arch/arm/kernel/perf_event.c
> +++ b/arch/arm/kernel/perf_event.c
> @@ -77,8 +77,12 @@ armpmu_map_event(struct perf_event *event,
>  		 u32 raw_event_mask)
>  {
>  	u64 config = event->attr.config;
> +	int type = event->attr.type;

Can we use u32 here to match the userspace ABI and avoid any signed vs.
unsigned oddness?

>  
> -	switch (event->attr.type) {
> +	if (type >= PERF_TYPE_MAX && type == event->pmu->type)
> +		return armpmu_map_raw_event(raw_event_mask, config);
> +
> +	switch (type) {
>  	case PERF_TYPE_HARDWARE:
>  		return armpmu_map_hw_event(event_map, config);
>  	case PERF_TYPE_HW_CACHE:
>

-- 
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project