ATF_PERM 994 net/ipv4/arp.c if (r->arp_flags & ATF_PERM) ATF_PERM 1032 net/ipv4/arp.c if (r->arp_flags & ATF_PERM) ATF_PERM 1047 net/ipv4/arp.c flags = ATF_PERM|ATF_COM; ATF_PERM 1326 net/ipv4/arp.c tbuf, hatype, ATF_PUBL | ATF_PERM, "00:00:00:00:00:00",