static void
__dump_topology_ref_history(struct drm_dp_mst_topology_ref_history *history,
			    void *ptr, const char *type_str)
static void
__dump_topology_ref_history(struct drm_device *drm,
			    struct drm_dp_mst_topology_ref_history *history,
			    void *ptr, const char *type_str)