inet: rename some inet_sock fields

In order to have better cache layouts of struct sock (separate zones
for rx/tx paths), we need this preliminary patch.

Goal is to transfert fields used at lookup time in the first
read-mostly cache line (inside struct sock_common) and move sk_refcnt
to a separate cache line (only written by rx path)

This patch adds inet_ prefix to daddr, rcv_saddr, dport, num, saddr,
sport and id fields. This allows a future patch to define these
fields as macros, like sk_refcnt, without name clashes.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/inet6_hashtables.h b/include/net/inet6_hashtables.h
index 22c73a7..92838d3 100644
--- a/include/net/inet6_hashtables.h
+++ b/include/net/inet6_hashtables.h
@@ -46,8 +46,8 @@
 	const struct ipv6_pinfo *np = inet6_sk(sk);
 	const struct in6_addr *laddr = &np->rcv_saddr;
 	const struct in6_addr *faddr = &np->daddr;
-	const __u16 lport = inet->num;
-	const __be16 fport = inet->dport;
+	const __u16 lport = inet->inet_num;
+	const __be16 fport = inet->inet_dport;
 	struct net *net = sock_net(sk);
 
 	return inet6_ehashfn(net, laddr, lport, faddr, fport);