diff --git a/target/linux/ramips/files/arch/mips/ralink/rt305x/devices.h b/target/linux/ramips/files/arch/mips/ralink/rt305x/devices.h
index 7e2144c165..b731f86835 100644
--- a/target/linux/ramips/files/arch/mips/ralink/rt305x/devices.h
+++ b/target/linux/ramips/files/arch/mips/ralink/rt305x/devices.h
@@ -15,8 +15,8 @@ struct physmap_flash_data;
 
 extern void rt305x_register_flash(unsigned int id,
 				  struct physmap_flash_data *pdata) __init;
-extern void rt305x_register_ethernet(void);
-extern void rt305x_register_wifi(void);
+extern void rt305x_register_ethernet(void) __init;
+extern void rt305x_register_wifi(void) __init;
 
 #endif  /* __RT305X_DEVICES_H */