Re: [PATCH 01/12] drm/amd: Remove unused variable 'r'

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On Mon, Mar 27, 2023 at 7:34 PM Caio Novais <caionovais@xxxxxx> wrote:
>
> Compiling AMD GPU drivers displays a warning:
>
> drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c: In function ‘amdgpu_mes_ctx_alloc_meta_data’:
> drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c:1099:13: warning: variable ‘r’ set but not used [-Wunused-but-set-variable]
>
> Get rid of it by removing the variable.
>
> Signed-off-by: Caio Novais <caionovais@xxxxxx>
> ---
>  drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c | 8 --------
>  1 file changed, 8 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c
> index 82e27bd4f038..e0130536f778 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c
> @@ -1096,14 +1096,6 @@ uint32_t amdgpu_mes_get_aggregated_doorbell_index(struct amdgpu_device *adev,
>  int amdgpu_mes_ctx_alloc_meta_data(struct amdgpu_device *adev,
>                                    struct amdgpu_mes_ctx_data *ctx_data)
>  {
> -       int r;
> -
> -       r = amdgpu_bo_create_kernel(adev,
> -                           sizeof(struct amdgpu_mes_ctx_meta_data),
> -                           PAGE_SIZE, AMDGPU_GEM_DOMAIN_GTT,
> -                           &ctx_data->meta_data_obj,
> -                           &ctx_data->meta_data_mc_addr,
> -                           &ctx_data->meta_data_ptr);

You can't just remove the buffer allocation here.  If you want to fix
this then do something like
if (r)
    return r;

Alex

>         if (!ctx_data->meta_data_obj)
>                 return -ENOMEM;
>
> --
> 2.40.0
>




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