--- zzzz-none-000/linux-3.10.107/include/xen/interface/callback.h	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/include/xen/interface/callback.h	2021-02-04 17:41:59.000000000 +0000
@@ -36,7 +36,7 @@
  * @extra_args == Operation-specific extra arguments (NULL if none).
  */
 
-/* ia64, x86: Callback for event delivery. */
+/* x86: Callback for event delivery. */
 #define CALLBACKTYPE_event                 0
 
 /* x86: Failsafe callback when guest state cannot be restored by Xen. */