check_ref          43 connect.c      	return check_ref(ref->name, flags);
check_ref         166 connect.c      		if (!check_ref(name, flags))
check_ref         788 upload-pack.c  		head_ref_namespaced(check_ref, NULL);
check_ref         789 upload-pack.c  		for_each_namespaced_ref(check_ref, NULL);