Re: [PATCH] perf/x86/core: Remove repeating test expression

[Deepak R Varma]

On Mon, Feb 27, 2023 at 05:17:25PM +0530, Deepak R Varma wrote:
> Current implementation already checks validity of the cpu_type for the
> hybrid pmu two lines above. Hence there is no need to again include
> it in the immediate if test evaluation.
> 
> Signed-off-by: Deepak R Varma <drv@xxxxxxxxx>
> ---

Please disregard. I misread the bitwise operation as logical evaluation. Sorry
for any inconvenience.

Deepak.

>  arch/x86/events/core.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c
> index 87a7f0cd77fd..89db2352deb9 100644
> --- a/arch/x86/events/core.c
> +++ b/arch/x86/events/core.c
> @@ -1893,7 +1893,7 @@ ssize_t events_hybrid_sysfs_show(struct device *dev,
>  	for (i = 0; i < x86_pmu.num_hybrid_pmus; i++) {
>  		if (!(x86_pmu.hybrid_pmu[i].cpu_type & pmu_attr->pmu_type))
>  			continue;
> -		if (x86_pmu.hybrid_pmu[i].cpu_type & pmu->cpu_type) {
> +		if (pmu->cpu_type) {
>  			next_str = strchr(str, ';');
>  			if (next_str)
>  				return snprintf(page, next_str - str + 1, "%s", str);
> -- 
> 2.34.1
>