VTE_FLAG_LINK
IFF_DRV_RUNNING || (sc->vte_flags & VTE_FLAG_LINK) == 0)
sc->vte_flags &= ~VTE_FLAG_LINK;
sc->vte_flags &= ~VTE_FLAG_LINK;
sc->vte_flags &= ~VTE_FLAG_LINK;
sc->vte_flags |= VTE_FLAG_LINK;
if ((sc->vte_flags & VTE_FLAG_LINK) != 0) {