extern struct nf_conntrack_l4proto nf_conntrack_l4proto_generic;
#define MAX_NF_CT_PROTO 256
-extern struct nf_conntrack_l4proto **nf_ct_protos[PF_MAX];
extern struct nf_conntrack_l4proto *
__nf_ct_l4proto_find(u_int16_t l3proto, u_int8_t l4proto);
/* Protocol registration. */
extern int nf_conntrack_l4proto_register(struct nf_conntrack_l4proto *proto);
-extern int nf_conntrack_l4proto_unregister(struct nf_conntrack_l4proto *proto);
+extern void nf_conntrack_l4proto_unregister(struct nf_conntrack_l4proto *proto);
/* Generic netlink helpers */
extern int nf_ct_port_tuple_to_nfattr(struct sk_buff *skb,