[PATCH 2/2] drm/amdgpu: fix compiler warning

[Christian König]

Am 30.03.21 um 12:02 schrieb Guchun Chen:
> warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
>    int write = !(gtt->userflags & AMDGPU_GEM_USERPTR_READONLY);

Well there seems to be some kind of bug in the compiler if it complains 
about the code below.
>
> Signed-off-by: Guchun Chen <guchun.chen at amd.com>
> ---
>   drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 2 --
>   1 file changed, 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
> index 722efd86718e..2a6fc0556386 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
> @@ -824,7 +824,6 @@ static int amdgpu_ttm_tt_pin_userptr(struct ttm_device *bdev,
>   	struct amdgpu_device *adev = amdgpu_ttm_adev(bdev);
>   	struct amdgpu_ttm_tt *gtt = (void *)ttm;
>   	int r;
> -

Better have variable like "r" and "i" declared last.

Christian.

>   	int write = !(gtt->userflags & AMDGPU_GEM_USERPTR_READONLY);
>   	enum dma_data_direction direction = write ?
>   		DMA_BIDIRECTIONAL : DMA_TO_DEVICE;
> @@ -861,7 +860,6 @@ static void amdgpu_ttm_tt_unpin_userptr(struct ttm_device *bdev,
>   {
>   	struct amdgpu_device *adev = amdgpu_ttm_adev(bdev);
>   	struct amdgpu_ttm_tt *gtt = (void *)ttm;
> -
>   	int write = !(gtt->userflags & AMDGPU_GEM_USERPTR_READONLY);
>   	enum dma_data_direction direction = write ?
>   		DMA_BIDIRECTIONAL : DMA_TO_DEVICE;