drm: radeon: radeon_ttm: constify ttm_place structures.
authorArvind Yadav <arvind.yadav.cs@gmail.com>
Sun, 2 Jul 2017 09:06:47 +0000 (14:36 +0530)
committerAlex Deucher <alexander.deucher@amd.com>
Fri, 14 Jul 2017 15:06:02 +0000 (11:06 -0400)
ttm_place are not supposed to change at runtime. All functions
working with ttm_place provided by <drm/ttm/ttm_placement.h> work
with const ttm_place. So mark the non-const structs as const.

File size before:
   text    data     bss     dec     hex filename
   9235     344     136    9715    25f3 drivers/gpu/drm/radeon/radeon_ttm.o

File size After adding 'const':
   text    data     bss     dec     hex filename
   9267     312     136    9715    25f3 drivers/gpu/drm/radeon/radeon_ttm.o

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drivers/gpu/drm/radeon/radeon_ttm.c

index faa021396da342b964139577c35c2d0fecce28d5..2804b4a1589666970f8364e5f600141867aceb71 100644 (file)
@@ -178,7 +178,7 @@ static int radeon_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
 static void radeon_evict_flags(struct ttm_buffer_object *bo,
                                struct ttm_placement *placement)
 {
-       static struct ttm_place placements = {
+       static const struct ttm_place placements = {
                .fpfn = 0,
                .lpfn = 0,
                .flags = TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM