ipvs: Pass ipvs into .conn_in_get and ip_vs_conn_in_get_proto

Stop relying on "net_ipvs(skb_net(skb))" to derive the ipvs as
skb_net is a hack.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
diff --git a/net/netfilter/ipvs/ip_vs_conn.c b/net/netfilter/ipvs/ip_vs_conn.c
index 6754e35..439d6fb 100644
--- a/net/netfilter/ipvs/ip_vs_conn.c
+++ b/net/netfilter/ipvs/ip_vs_conn.c
@@ -335,10 +335,10 @@
 }
 
 struct ip_vs_conn *
-ip_vs_conn_in_get_proto(int af, const struct sk_buff *skb,
+ip_vs_conn_in_get_proto(struct netns_ipvs *ipvs, int af,
+			const struct sk_buff *skb,
 			const struct ip_vs_iphdr *iph)
 {
-	struct netns_ipvs *ipvs = net_ipvs(skb_net(skb));
 	struct ip_vs_conn_param p;
 
 	if (ip_vs_conn_fill_param_proto(ipvs, af, skb, iph, &p))