Re: [PATCH] selftests/powerpc/pmu: Fix unsigned function returning negative constant

[kajoljain <kjain@linux.ibm.com>]

On 4/24/22 13:56, Haowen Bai wrote:
> The function __perf_reg_mask has an unsigned return type, but returns a
> negative constant to indicate an error condition. So we change unsigned
> to int.
> 
> Signed-off-by: Haowen Bai <baihaowen@meizu.com>
> ---
>  tools/testing/selftests/powerpc/pmu/sampling_tests/misc.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/tools/testing/selftests/powerpc/pmu/sampling_tests/misc.c b/tools/testing/selftests/powerpc/pmu/sampling_tests/misc.c
> index fca054bbc094..c01a31d5f4ee 100644
> --- a/tools/testing/selftests/powerpc/pmu/sampling_tests/misc.c
> +++ b/tools/testing/selftests/powerpc/pmu/sampling_tests/misc.c
> @@ -274,7 +274,7 @@ u64 *get_intr_regs(struct event *event, void *sample_buff)
>  	return intr_regs;
>  }
>  
> -static const unsigned int __perf_reg_mask(const char *register_name)
> +static const int __perf_reg_mask(const char *register_name)
>  {

Hi Haowen,
 Thanks for correcting it. Can you also add fix tag with corresponding
commit id details.

Other than that patch looks good to me.

Reviewed-by: Kajol Jain<kjain@linux.ibm.com>

Thanks,
Kajol Jain


>  	if (!strcmp(register_name, "R0"))
>  		return 0;