Index: kernel/arch/sparc64/include/arch/barrier.h
===================================================================
--- kernel/arch/sparc64/include/arch/barrier.h	(revision e08162be96bc4ff41d0a733317b13d516f1e1b6d)
+++ kernel/arch/sparc64/include/arch/barrier.h	(revision 0f17bffb9edacd5345a8cb7bd518bccfb25c3e30)
@@ -116,5 +116,7 @@
 }
 
-#if defined (US)
+#ifdef KERNEL
+
+#if defined(US)
 
 #define FLUSH_INVAL_MIN  4
@@ -151,4 +153,6 @@
 #endif  /* defined(US3) */
 
+#endif	/* KERNEL */
+
 #endif