radeon_backend_func 626 drivers/gpu/drm/radeon/radeon_ttm.c static struct ttm_backend_func radeon_backend_func = { radeon_backend_func 650 drivers/gpu/drm/radeon/radeon_ttm.c gtt->ttm.ttm.func = &radeon_backend_func; radeon_backend_func 661 drivers/gpu/drm/radeon/radeon_ttm.c if (!ttm || ttm->func != &radeon_backend_func)