ieee802154: fix byteorder issues

This patch fix byteorder issues which occurs because we compare __le64
with an host byteorder value. Simple add a cpu_to_le64 to convert the
host byteorder values to __le64.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Reported-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

include/linux/ieee802154.h

@@ -24,6 +24,7 @@
 #define LINUX_IEEE802154_H
 
 #include <linux/types.h>
+#include <asm/byteorder.h>
 
 #define IEEE802154_MTU			127
 #define IEEE802154_MIN_PSDU_LEN		5
@@ -208,8 +209,8 @@ static inline bool ieee802154_is_valid_extended_addr(const __le64 addr)
 	 * This is currently a workaround because neighbor discovery can't
 	 * deal with short addresses types right now.
 	 */
-	return ((addr != 0x0000000000000000ULL) ||
-		(addr != 0xffffffffffffffffULL));
+	return ((addr != cpu_to_le64(0x0000000000000000ULL)) ||
+		(addr != cpu_to_le64(0xffffffffffffffffULL)));
 }
 
 #endif /* LINUX_IEEE802154_H */