Index: kernel/generic/include/mm/as.h
===================================================================
--- kernel/generic/include/mm/as.h	(revision 01029fc7e46acbe4cd80f0a678a085d214882028)
+++ kernel/generic/include/mm/as.h	(revision 1f7753ac3caad5c5c1e675848e8770f3dcb74bbe)
@@ -61,10 +61,4 @@
 #define USER_ADDRESS_SPACE_END      USER_ADDRESS_SPACE_END_ARCH
 
-#ifdef USTACK_ADDRESS_ARCH
-	#define USTACK_ADDRESS  USTACK_ADDRESS_ARCH
-#else
-	#define USTACK_ADDRESS  (USER_ADDRESS_SPACE_END - (STACK_SIZE - 1))
-#endif
-
 /** Kernel address space. */
 #define FLAG_AS_KERNEL  (1 << 0)