[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 <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/inet_sock.h b/include/net/inet_sock.h
index a448bb2..ce6da97 100644
--- a/include/net/inet_sock.h
+++ b/include/net/inet_sock.h
@@ -167,10 +167,10 @@
 
 extern int inet_sk_rebuild_header(struct sock *sk);
 
-static inline unsigned int inet_ehashfn(const __u32 laddr, const __u16 lport,
-					const __u32 faddr, const __u16 fport)
+static inline unsigned int inet_ehashfn(const __be32 laddr, const __u16 lport,
+					const __be32 faddr, const __be16 fport)
 {
-	unsigned int h = (laddr ^ lport) ^ (faddr ^ fport);
+	unsigned int h = ((__force __u32)laddr ^ lport) ^ ((__force __u32)faddr ^ (__force __u32)fport);
 	h ^= h >> 16;
 	h ^= h >> 8;
 	return h;
@@ -179,10 +179,10 @@
 static inline int inet_sk_ehashfn(const struct sock *sk)
 {
 	const struct inet_sock *inet = inet_sk(sk);
-	const __u32 laddr = inet->rcv_saddr;
+	const __be32 laddr = inet->rcv_saddr;
 	const __u16 lport = inet->num;
-	const __u32 faddr = inet->daddr;
-	const __u16 fport = inet->dport;
+	const __be32 faddr = inet->daddr;
+	const __be16 fport = inet->dport;
 
 	return inet_ehashfn(laddr, lport, faddr, fport);
 }