[PATCH] drm/ttm: Don't skip fpfn check if lpfn is 0 in ttm_bo_mem_compat

[Christian König]

Am 09.10.2014 um 08:03 schrieb Michel Dänzer:
> From: Michel Dänzer <michel.daenzer at amd.com>
>
> Signed-off-by: Michel Dänzer <michel.daenzer at amd.com>

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

> ---
>   drivers/gpu/drm/ttm/ttm_bo.c | 8 ++++----
>   1 file changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
> index 407fa2d..d395b0b 100644
> --- a/drivers/gpu/drm/ttm/ttm_bo.c
> +++ b/drivers/gpu/drm/ttm/ttm_bo.c
> @@ -1008,9 +1008,9 @@ static bool ttm_bo_mem_compat(struct ttm_placement *placement,
>   
>   	for (i = 0; i < placement->num_placement; i++) {
>   		const struct ttm_place *heap = &placement->placement[i];
> -		if (mem->mm_node && heap->lpfn != 0 &&
> +		if (mem->mm_node &&
>   		    (mem->start < heap->fpfn ||
> -		     mem->start + mem->num_pages > heap->lpfn))
> +		     (heap->lpfn != 0 && (mem->start + mem->num_pages) > heap->lpfn)))
>   			continue;
>   
>   		*new_flags = heap->flags;
> @@ -1021,9 +1021,9 @@ static bool ttm_bo_mem_compat(struct ttm_placement *placement,
>   
>   	for (i = 0; i < placement->num_busy_placement; i++) {
>   		const struct ttm_place *heap = &placement->busy_placement[i];
> -		if (mem->mm_node && heap->lpfn != 0 &&
> +		if (mem->mm_node &&
>   		    (mem->start < heap->fpfn ||
> -		     mem->start + mem->num_pages > heap->lpfn))
> +		     (heap->lpfn != 0 && (mem->start + mem->num_pages) > heap->lpfn)))
>   			continue;
>   
>   		*new_flags = heap->flags;