Index: kernel/generic/include/mm/km.h
===================================================================
--- kernel/generic/include/mm/km.h	(revision 55896b6837c19f8fe505af9cbe31069aa02c168b)
+++ kernel/generic/include/mm/km.h	(revision 5dd830ce2dcd08682d30641827049637b071c1dd)
@@ -36,6 +36,10 @@
 #define KERN_KM_H_
 
+#include <typedefs.h>
+
 extern void km_identity_init(void);
 extern void km_non_identity_init(void);
+
+extern void km_non_identity_span_add(uintptr_t, size_t);
 
 #endif