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 Signed-off-by: Arvind Yadav <arvind.yadav.cs at gmail.com> --- drivers/gpu/drm/radeon/radeon_ttm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c index 8b7623b..6499832 100644 --- a/drivers/gpu/drm/radeon/radeon_ttm.c +++ b/drivers/gpu/drm/radeon/radeon_ttm.c @@ -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 -- 2.7.4