[IPV4]: annotate struct in_ifaddr

ifa_local, ifa_address, ifa_mask, ifa_broadcast and ifa_anycast are
net-endian.  Annotated them and variables that are inferred to be
net-endian.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index 5988584..a0a7780 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -805,7 +805,7 @@
 			break;
 		ret = 0;
 		if (ifa->ifa_mask != sin->sin_addr.s_addr) {
-			u32 old_mask = ifa->ifa_mask;
+			__be32 old_mask = ifa->ifa_mask;
 			inet_del_ifa(in_dev, ifap, 0);
 			ifa->ifa_mask = sin->sin_addr.s_addr;
 			ifa->ifa_prefixlen = inet_mask_len(ifa->ifa_mask);
@@ -931,7 +931,7 @@
 			      u32 local, int scope)
 {
 	int same = 0;
-	u32 addr = 0;
+	__be32 addr = 0;
 
 	for_ifa(in_dev) {
 		if (!addr &&