inet: introduce ireq_family

Before inserting request socks into general hash table,
fill their socket family.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c
index 703a21a..5166b00 100644
--- a/net/dccp/ipv6.c
+++ b/net/dccp/ipv6.c
@@ -404,6 +404,7 @@
 	ireq->ir_v6_rmt_addr = ipv6_hdr(skb)->saddr;
 	ireq->ir_v6_loc_addr = ipv6_hdr(skb)->daddr;
 	write_pnet(&ireq->ireq_net, sock_net(sk));
+	ireq->ireq_family = AF_INET6;
 
 	if (ipv6_opt_accepted(sk, skb, IP6CB(skb)) ||
 	    np->rxopt.bits.rxinfo || np->rxopt.bits.rxoinfo ||