diff --git a/include/linux/console.h b/include/linux/console.h
index f76fc29..95cf6f0 100644
--- a/include/linux/console.h
+++ b/include/linux/console.h
@@ -79,8 +79,13 @@
 int unregister_con_driver(const struct consw *csw);
 int take_over_console(const struct consw *sw, int first, int last, int deflt);
 void give_up_console(const struct consw *sw);
+#ifdef CONFIG_HW_CONSOLE
 int con_debug_enter(struct vc_data *vc);
 int con_debug_leave(void);
+#else
+#define con_debug_enter(vc) (0)
+#define con_debug_leave() (0)
+#endif
 
 /* scroll */
 #define SM_UP       (1)