Index: kernel/generic/include/ddi/ddi.h
===================================================================
--- kernel/generic/include/ddi/ddi.h	(revision 88205440caa3e827197cd095139acca02b989d5e)
+++ kernel/generic/include/ddi/ddi.h	(revision 6eeb4a3e81a72dcdffeb1256ea248c75983514ab)
@@ -70,4 +70,5 @@
  */
 extern int ddi_iospace_enable_arch(task_t *, uintptr_t, size_t);
+extern int ddi_iospace_disable_arch(task_t *, uintptr_t, size_t);
 
 #endif