TPF_SEND_FIN
if (mbufq_first(pduq) == NULL && toep->flags & TPF_SEND_FIN)
toep->flags |= TPF_SEND_FIN;
toep->flags &= ~TPF_SEND_FIN;
if (m == NULL && toep->flags & TPF_SEND_FIN)
if (m == NULL && toep->flags & TPF_SEND_FIN) {