[NETFILTER]: Make nf_ct_ipv6_skip_exthdr() static.

nf_ct_ipv6_skip_exthdr() can now become static.
Signed-off-by: NAdrian Bunk <bunk@stusta.de>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

include/net/netfilter/ipv6/nf_conntrack_ipv6.h

@@ -7,9 +7,6 @@ extern struct nf_conntrack_l4proto nf_conntrack_l4proto_tcp6;
 extern struct nf_conntrack_l4proto nf_conntrack_l4proto_udp6;
 extern struct nf_conntrack_l4proto nf_conntrack_l4proto_icmpv6;
 
-extern int nf_ct_ipv6_skip_exthdr(const struct sk_buff *skb, int start,
-				  u8 *nexthdrp, int len);
-
 extern int nf_ct_frag6_init(void);
 extern void nf_ct_frag6_cleanup(void);
 extern struct sk_buff *nf_ct_frag6_gather(struct sk_buff *skb);

net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c

@@ -86,8 +86,8 @@ static int ipv6_print_conntrack(struct seq_file *s,
  *        - Note also special handling of AUTH header. Thanks to IPsec wizards.
  */
 
-int nf_ct_ipv6_skip_exthdr(const struct sk_buff *skb, int start, u8 *nexthdrp,
-			   int len)
+static int nf_ct_ipv6_skip_exthdr(const struct sk_buff *skb, int start,
+				  u8 *nexthdrp, int len)
 {
 	u8 nexthdr = *nexthdrp;