list_first_entry_or_null
preferred_mode = list_first_entry_or_null(
commit = list_first_entry_or_null(&crtc->commit_list,
port = list_first_entry_or_null(&mgr->destroy_connector_list, struct drm_dp_mst_port, next);
return list_first_entry_or_null(&mm->hole_stack,
while ((vma = list_first_entry_or_null(&obj->vma_list,
(obj = list_first_entry_or_null(phase->list,
commit = list_first_entry_or_null(&crtc->commit_list,
request = list_first_entry_or_null(&ct->incoming_requests,
job = list_first_entry_or_null(&sched->ring_mirror_list,