Index: kernel/generic/include/mm/km.h
===================================================================
--- kernel/generic/include/mm/km.h	(revision 55896b6837c19f8fe505af9cbe31069aa02c168b)
+++ kernel/generic/include/mm/km.h	(revision ddcc8a0d63f8ff64bcff9151c6d65b103343d22c)
@@ -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