RE_F_LINKED
if ((sc->re_flags & RE_F_LINKED) == 0)
} else if (sc->re_flags & RE_F_LINKED) {
if ((sc->re_flags & RE_F_LINKED) == 0) {
sc->re_flags |= RE_F_LINKED;
sc->re_flags &= ~(RE_F_TIMER_INTR | RE_F_DROP_RXFRAG | RE_F_LINKED);