Re: [PATCH][next] amd/amdgpu_ctx: Use struct_size() helper and kmalloc()

From: Alex Deucher
Date: Thu Oct 08 2020 - 13:22:53 EST


Applied. Thanks!

Alex

On Thu, Oct 8, 2020 at 10:29 AM Gustavo A. R. Silva
<gustavoars@xxxxxxxxxx> wrote:
>
> Make use of the new struct_size() helper instead of the offsetof() idiom.
> Also, use kmalloc() instead of kcalloc().
>
> Signed-off-by: Gustavo A. R. Silva <gustavoars@xxxxxxxxxx>
> ---
> drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c
> index c80d8339f58c..5be125f3b92a 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c
> @@ -100,7 +100,7 @@ static int amdgpu_ctx_init_entity(struct amdgpu_ctx *ctx, u32 hw_ip,
> enum drm_sched_priority priority;
> int r;
>
> - entity = kcalloc(1, offsetof(typeof(*entity), fences[amdgpu_sched_jobs]),
> + entity = kmalloc(struct_size(entity, fences, amdgpu_sched_jobs),
> GFP_KERNEL);
> if (!entity)
> return -ENOMEM;
> --
> 2.27.0
>
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