Re: [PATCH][next] drm/amdgpu: Use struct_size() helper in kmalloc()

Christian König
2020-10-09T07:07:43Z

Am 08.10.20 um 16:23 schrieb Gustavo A. R. Silva:
> Make use of the new struct_size() helper instead of the offsetof() idiom.
>
> Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>

Reviewed-by: Christian König <christian.koenig@amd.com>

> ---
> drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
> index 5da487b64a66..30192dce7775 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
> @@ -239,8 +239,7 @@ static int amdgpu_amdkfd_remove_eviction_fence(struct amdgpu_bo *bo,
> if (!old)
> return 0;
>
> - new = kmalloc(offsetof(typeof(*new), shared[old->shared_max]),
> - GFP_KERNEL);
> + new = kmalloc(struct_size(new, shared, old->shared_max), GFP_KERNEL);
> if (!new)
> return -ENOMEM;
>