On Sat, 22 Jun 2019, Mao Wenan wrote:
> Fixes gcc '-Wunused-but-set-variable' warning:
>
> drivers/gpu/drm/amd/amdgpu/amdgpu_pmu.c: In function ‘amdgpu_pmu_init’:
> drivers/gpu/drm/amd/amdgpu/amdgpu_pmu.c:249:6: warning: variable ‘ret’ set
> but not used [-Wunused-but-set-variable]
> int ret = 0;
> ^
>
> It is never used since introduction in 9c7c85f7ea1f ("drm/amdgpu: add pmu
> counters")
>
> Signed-off-by: Mao Wenan <maowe...@huawei.com>
> ---
> drivers/gpu/drm/amd/amdgpu/amdgpu_pmu.c | 4 +---
> 1 file changed, 1 insertion(+), 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_pmu.c
> b/drivers/gpu/drm/amd/amdgpu/amdgpu_pmu.c
> index 0e6dba9..0bf4dd9 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_pmu.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_pmu.c
> @@ -246,12 +246,10 @@ static int init_pmu_by_type(struct amdgpu_device *adev,
> /* init amdgpu_pmu */
> int amdgpu_pmu_init(struct amdgpu_device *adev)
> {
> - int ret = 0;
> -
> switch (adev->asic_type) {
> case CHIP_VEGA20:
> /* init df */
> - ret = init_pmu_by_type(adev, df_v3_6_attr_groups,
> + init_pmu_by_type(adev, df_v3_6_attr_groups,
> "DF", "amdgpu_df", PERF_TYPE_AMDGPU_DF,
> DF_V3_6_MAX_COUNTERS);
Maybe it would be better to use ret?
If knowing whether the call has failed is really useless, then maybe the
return type should be void?
julia
>
> --
> 2.7.4
>
>
