mctp_address_unicast
if (!mctp_address_unicast(addr->s_addr))
if (!mctp_address_unicast(eid)) {
if (!mctp_address_unicast(rt->min) || !mctp_address_unicast(rt->max))
if (!(mctp_address_unicast(mh->src) || mctp_address_null(mh->src)))
if (!(mctp_address_unicast(mh->dest) || mctp_address_null(mh->dest) ||
if (!mctp_address_unicast(gateway->eid)) {