[IPV4]: inet_select_addr() annotations

argument and return value are net-endian.  Annotated function and inferred
net-endian variables in callers.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/arp.c b/net/ipv4/arp.c
index 48e1ccb..db72339 100644
--- a/net/ipv4/arp.c
+++ b/net/ipv4/arp.c
@@ -330,10 +330,10 @@
 
 static void arp_solicit(struct neighbour *neigh, struct sk_buff *skb)
 {
-	u32 saddr = 0;
+	__be32 saddr = 0;
 	u8  *dst_ha = NULL;
 	struct net_device *dev = neigh->dev;
-	u32 target = *(u32*)neigh->primary_key;
+	__be32 target = *(__be32*)neigh->primary_key;
 	int probes = atomic_read(&neigh->probes);
 	struct in_device *in_dev = in_dev_get(dev);