FYI, kernel build failed on tree: git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git master head: 9136461ab921fd5066ba6a0de08399e2172f4d71 commit: 0ce490ad4387a67ee8ca5253476272d508fc0b6f [106/125] netfilter: nf_ct_udp: add namespace support config: i386-randconfig-net5 (attached as .config) All related error/warning messages are: net/netfilter/nf_conntrack_proto_udp.c: In function ‘udp_init_net_data’: net/netfilter/nf_conntrack_proto_udp.c:279:13: error: ‘struct nf_proto_net’ has no member named ‘user’ net/netfilter/nf_conntrack_proto_tcp.c:1606:9: error: ‘struct nf_proto_net’ has no member named ‘user’ net/netfilter/nf_conntrack_proto_tcp.c:1643:9: error: ‘struct nf_proto_net’ has no member named ‘user’ --- 0-DAY kernel build testing backend Open Source Technology Centre Fengguang Wu Intel Corporation