[NETFILTER]: Replace sk_buff ** with sk_buff *

With all the users of the double pointers removed, this patch mops up by
finally replacing all occurances of sk_buff ** in the netfilter API by
sk_buff *.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv6/netfilter.c b/net/ipv6/netfilter.c
index 38b1496..b1326c2 100644
--- a/net/ipv6/netfilter.c
+++ b/net/ipv6/netfilter.c
@@ -68,15 +68,15 @@
 	}
 }
 
-static int nf_ip6_reroute(struct sk_buff **pskb, const struct nf_info *info)
+static int nf_ip6_reroute(struct sk_buff *skb, const struct nf_info *info)
 {
 	struct ip6_rt_info *rt_info = nf_info_reroute(info);
 
 	if (info->hook == NF_IP6_LOCAL_OUT) {
-		struct ipv6hdr *iph = ipv6_hdr(*pskb);
+		struct ipv6hdr *iph = ipv6_hdr(skb);
 		if (!ipv6_addr_equal(&iph->daddr, &rt_info->daddr) ||
 		    !ipv6_addr_equal(&iph->saddr, &rt_info->saddr))
-			return ip6_route_me_harder(*pskb);
+			return ip6_route_me_harder(skb);
 	}
 	return 0;
 }