Index: kernel/arch/sparc64/include/smp/sun4v/smp.h
===================================================================
--- kernel/arch/sparc64/include/smp/sun4v/smp.h	(revision 95c47767f9669a11d10f6b7cb3e1ceca40b9788b)
+++ kernel/arch/sparc64/include/smp/sun4v/smp.h	(revision a634485c00ca23ba2df2fecef2d928929debee43)
@@ -38,5 +38,8 @@
 #define KERN_sparc64_sun4v_SMP_H_
 
-bool calculate_optimal_nrdy(exec_unit_t *exec_unit);
+#include <typedefs.h>
+#include <arch/sun4v/cpu.h>
+
+extern bool calculate_optimal_nrdy(exec_unit_t *);
 
 #endif