__drm_atomic_helper_private_obj_duplicate_state
__drm_atomic_helper_private_obj_duplicate_state(obj, &new_state->base);
EXPORT_SYMBOL(__drm_atomic_helper_private_obj_duplicate_state);
__drm_atomic_helper_private_obj_duplicate_state(obj, &state->base);
void __drm_atomic_helper_private_obj_duplicate_state(struct drm_private_obj *obj,