[IPV4]: annotate inet_lookup() and friends

inet_lookup() annotated along with helper functions (__inet_lookup(),
__inet_lookup_established(), inet_lookup_established(),
inet_lookup_listener(), __inet_lookup_listener() and inet_ehashfn())

Signed-off-by: Al Viro <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c
index 729d1eb..244c4f4 100644
--- a/net/ipv4/inet_hashtables.c
+++ b/net/ipv4/inet_hashtables.c
@@ -125,7 +125,7 @@
  * wildcarded during the search since they can never be otherwise.
  */
 static struct sock *inet_lookup_listener_slow(const struct hlist_head *head,
-					      const u32 daddr,
+					      const __be32 daddr,
 					      const unsigned short hnum,
 					      const int dif)
 {
@@ -137,7 +137,7 @@
 		const struct inet_sock *inet = inet_sk(sk);
 
 		if (inet->num == hnum && !ipv6_only_sock(sk)) {
-			const __u32 rcv_saddr = inet->rcv_saddr;
+			const __be32 rcv_saddr = inet->rcv_saddr;
 			int score = sk->sk_family == PF_INET ? 1 : 0;
 
 			if (rcv_saddr) {
@@ -163,7 +163,7 @@
 
 /* Optimize the common listener case. */
 struct sock *__inet_lookup_listener(struct inet_hashinfo *hashinfo,
-				    const u32 daddr, const unsigned short hnum,
+				    const __be32 daddr, const unsigned short hnum,
 				    const int dif)
 {
 	struct sock *sk = NULL;
@@ -197,8 +197,8 @@
 {
 	struct inet_hashinfo *hinfo = death_row->hashinfo;
 	struct inet_sock *inet = inet_sk(sk);
-	u32 daddr = inet->rcv_saddr;
-	u32 saddr = inet->daddr;
+	__be32 daddr = inet->rcv_saddr;
+	__be32 saddr = inet->daddr;
 	int dif = sk->sk_bound_dev_if;
 	INET_ADDR_COOKIE(acookie, saddr, daddr)
 	const __portpair ports = INET_COMBINED_PORTS(inet->dport, lport);