AUE_FLAG_LINK
sc->sc_flags &= ~AUE_FLAG_LINK;
sc->sc_flags &= ~AUE_FLAG_LINK;
if ((sc->sc_flags & AUE_FLAG_LINK) == 0) {
if ((sc->sc_flags & AUE_FLAG_LINK) == 0
sc->sc_flags |= AUE_FLAG_LINK;