nodata_protocol 668 net/ipv6/exthdrs.c static const struct inet6_protocol nodata_protocol = { nodata_protocol 685 net/ipv6/exthdrs.c ret = inet6_add_protocol(&nodata_protocol, IPPROTO_NONE); nodata_protocol 700 net/ipv6/exthdrs.c inet6_del_protocol(&nodata_protocol, IPPROTO_NONE);