Index: kernel/generic/include/main/main.h
===================================================================
--- kernel/generic/include/main/main.h	(revision b60615bd9d3afe6d075036e1b1ebdc9437912cfc)
+++ kernel/generic/include/main/main.h	(revision 89bca6063360687c24dd26d942cd935fa39acec2)
@@ -43,6 +43,4 @@
 extern uint8_t kdata_end[];
 
-extern uintptr_t stack_safe;
-
 extern void main_bsp(void);
 extern void main_ap(void);