IP_CT_TCP_FLAG_DATA_UNACKNOWLEDGED 629 net/netfilter/nf_conntrack_proto_tcp.c sender->flags |= IP_CT_TCP_FLAG_DATA_UNACKNOWLEDGED; IP_CT_TCP_FLAG_DATA_UNACKNOWLEDGED 650 net/netfilter/nf_conntrack_proto_tcp.c receiver->flags &= ~IP_CT_TCP_FLAG_DATA_UNACKNOWLEDGED; IP_CT_TCP_FLAG_DATA_UNACKNOWLEDGED 1123 net/netfilter/nf_conntrack_proto_tcp.c IP_CT_TCP_FLAG_DATA_UNACKNOWLEDGED &&