diff -r ac0c11d8dfd6 -r 3e4c3a5ba3fd src/mem/packet.hh
--- a/src/mem/packet.hh	Tue Jul 07 17:50:18 2015 +0100
+++ b/src/mem/packet.hh	Tue Jul 07 18:04:19 2015 +0100
@@ -868,7 +868,7 @@
      * endian.
      */
     template <typename T>
-    T get() const;
+    T M5_DEPRECATED_MSG("Non-obvious byte-swapping, don't use!") get() const;
 
     /** Set the value in the data pointer to v as big endian. */
     template <typename T>
@@ -887,7 +887,7 @@
 
     /** Set the value in the data pointer to v as guest endian. */
     template <typename T>
-    void set(T v);
+    void M5_DEPRECATED_MSG("Non-obvious byte-swapping, don't use!") set(T v);
 
     /**
      * Copy data into the packet from the provided pointer.