ipvs: address family of LBLC entry depends on svc family

The LBLC entries should use svc->af, not dest->af.
Needed to support svc->af != dest->af.

Signed-off-by: Julian Anastasov <[e-mail]>
Signed-off-by: Alex Gartrell <[e-mail]>
Signed-off-by: Simon Horman <[e-mail]>

net/netfilter/ipvs/ip_vs_lblc.c

···
  */
 static inline struct ip_vs_lblc_entry *
 ip_vs_lblc_new(struct ip_vs_lblc_table *tbl, const union nf_inet_addr *daddr,
-	       struct ip_vs_dest *dest)
+	       u16 af, struct ip_vs_dest *dest)
 {
 	struct ip_vs_lblc_entry *en;
 
-	en = ip_vs_lblc_get(dest->af, tbl, daddr);
+	en = ip_vs_lblc_get(af, tbl, daddr);
 	if (en) {
 		if (en->dest == dest)
 			return en;
···
 	if (!en)
 		return NULL;
 
-	en->af = dest->af;
-	ip_vs_addr_copy(dest->af, &en->addr, daddr);
+	en->af = af;
+	ip_vs_addr_copy(af, &en->addr, daddr);
 	en->lastuse = jiffies;
 
 	ip_vs_dest_hold(dest);
···
 	/* If we fail to create a cache entry, we'll just use the valid dest */
 	spin_lock_bh(&svc->sched_lock);
 	if (!tbl->dead)
-		ip_vs_lblc_new(tbl, &iph->daddr, dest);
+		ip_vs_lblc_new(tbl, &iph->daddr, svc->af, dest);
 	spin_unlock_bh(&svc->sched_lock);
 
 out:
 	IP_VS_DBG_BUF(6, "LBLC: destination IP address %s --> server %s:%d\n",
 		      IP_VS_DBG_ADDR(svc->af, &iph->daddr),
-		      IP_VS_DBG_ADDR(svc->af, &dest->addr), ntohs(dest->port));
+		      IP_VS_DBG_ADDR(dest->af, &dest->addr), ntohs(dest->port));
 
 	return dest;
 }