drm_dp_mst_topology_ref_entry
struct drm_dp_mst_topology_ref_entry *entry = NULL;
struct drm_dp_mst_topology_ref_entry *new;
const struct drm_dp_mst_topology_ref_entry *entry_a = a, *entry_b = b;
const struct drm_dp_mst_topology_ref_entry *entry =