net: Use a more standard macro for INET_ADDR_COOKIE

Missing a colon on definition use is a bit odd so
change the macro for the 32 bit case to declare an
__attribute__((unused)) and __deprecated variable.

The __deprecated attribute will cause gcc to emit
an error if the variable is actually used.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/net/inet_hashtables.h

@@ -292,12 +292,12 @@ static inline struct sock *inet_lookup_listener(struct net *net,
 #define INET_ADDR_COOKIE(__name, __saddr, __daddr) \
 	const __addrpair __name = (__force __addrpair) ( \
 				   (((__force __u64)(__be32)(__saddr)) << 32) | \
-				   ((__force __u64)(__be32)(__daddr)));
+				   ((__force __u64)(__be32)(__daddr)))
 #else /* __LITTLE_ENDIAN */
 #define INET_ADDR_COOKIE(__name, __saddr, __daddr) \
 	const __addrpair __name = (__force __addrpair) ( \
 				   (((__force __u64)(__be32)(__daddr)) << 32) | \
-				   ((__force __u64)(__be32)(__saddr)));
+				   ((__force __u64)(__be32)(__saddr)))
 #endif /* __BIG_ENDIAN */
 #define INET_MATCH(__sk, __net, __cookie, __saddr, __daddr, __ports, __dif)	\
 	(((__sk)->sk_portpair == (__ports))			&&	\
@@ -306,7 +306,9 @@ static inline struct sock *inet_lookup_listener(struct net *net,
 	   ((__sk)->sk_bound_dev_if == (__dif))) 		&& 	\
 	 net_eq(sock_net(__sk), (__net)))
 #else /* 32-bit arch */
-#define INET_ADDR_COOKIE(__name, __saddr, __daddr)
+#define INET_ADDR_COOKIE(__name, __saddr, __daddr) \
+	const int __name __deprecated __attribute__((unused))
+
 #define INET_MATCH(__sk, __net, __cookie, __saddr, __daddr, __ports, __dif) \
 	(((__sk)->sk_portpair == (__ports))		&&		\
 	 ((__sk)->sk_daddr	== (__saddr))		&&		\

net/ipv4/inet_hashtables.c

@@ -274,7 +274,7 @@ struct sock *__inet_lookup_established(struct net *net,
 				  const __be32 daddr, const u16 hnum,
 				  const int dif)
 {
-	INET_ADDR_COOKIE(acookie, saddr, daddr)
+	INET_ADDR_COOKIE(acookie, saddr, daddr);
 	const __portpair ports = INET_COMBINED_PORTS(sport, hnum);
 	struct sock *sk;
 	const struct hlist_nulls_node *node;
@@ -327,7 +327,7 @@ static int __inet_check_established(struct inet_timewait_death_row *death_row,
 	__be32 daddr = inet->inet_rcv_saddr;
 	__be32 saddr = inet->inet_daddr;
 	int dif = sk->sk_bound_dev_if;
-	INET_ADDR_COOKIE(acookie, saddr, daddr)
+	INET_ADDR_COOKIE(acookie, saddr, daddr);
 	const __portpair ports = INET_COMBINED_PORTS(inet->inet_dport, lport);
 	struct net *net = sock_net(sk);
 	unsigned int hash = inet_ehashfn(net, daddr, lport,

net/ipv4/udp.c

@@ -1875,7 +1875,7 @@ static struct sock *__udp4_lib_demux_lookup(struct net *net,
 	unsigned int hash2 = udp4_portaddr_hash(net, loc_addr, hnum);
 	unsigned int slot2 = hash2 & udp_table.mask;
 	struct udp_hslot *hslot2 = &udp_table.hash2[slot2];
-	INET_ADDR_COOKIE(acookie, rmt_addr, loc_addr)
+	INET_ADDR_COOKIE(acookie, rmt_addr, loc_addr);
 	const __portpair ports = INET_COMBINED_PORTS(rmt_port, hnum);
 
 	rcu_read_lock();