old_if_flags 1178 net/ipv6/ndisc.c __u32 old_if_flags; old_if_flags 1250 net/ipv6/ndisc.c old_if_flags = in6_dev->if_flags; old_if_flags 1258 net/ipv6/ndisc.c if (old_if_flags != in6_dev->if_flags)