AGE_FLAG_LINK
IFF_DRV_RUNNING || (sc->age_flags & AGE_FLAG_LINK) == 0)
if ((sc->age_flags & AGE_FLAG_LINK) == 0) {
sc->age_flags &= ~AGE_FLAG_LINK;
sc->age_flags |= AGE_FLAG_LINK;
if ((sc->age_flags & AGE_FLAG_LINK) != 0) {
sc->age_flags &= ~AGE_FLAG_LINK;
sc->age_flags &= ~AGE_FLAG_LINK;