[IPV6]: annotate icmpv6 headers

Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

include/linux/icmpv6.h

@@ -7,17 +7,17 @@ struct icmp6hdr {
 
 	__u8		icmp6_type;
 	__u8		icmp6_code;
-	__u16		icmp6_cksum;
+	__be16		icmp6_cksum;
 
 
 	union {
-		__u32			un_data32[1];
-		__u16			un_data16[2];
+		__be32			un_data32[1];
+		__be16			un_data16[2];
 		__u8			un_data8[4];
 
 		struct icmpv6_echo {
-			__u16		identifier;
-			__u16		sequence;
+			__be16		identifier;
+			__be16		sequence;
 		} u_echo;
 
                 struct icmpv6_nd_advt {
@@ -53,7 +53,7 @@ struct icmp6hdr {
 #else
 #error	"Please fix <asm/byteorder.h>"
 #endif
-			__u16		rt_lifetime;
+			__be16		rt_lifetime;
                 } u_nd_ra;
 
 	} icmp6_dataun;