ATF_COM
if ((r->arp_flags & ATF_COM) && r->arp_ha.sa_family != dev->type)
if (!dev && (r->arp_flags & ATF_COM)) {
r->arp_flags |= ATF_COM;
err = neigh_update(neigh, (r->arp_flags & ATF_COM) ?
return ATF_PERM | ATF_COM;
return ATF_COM;