static struct device_attribute dev_attr_hotkey_wakeup_reason =
        __ATTR(wakeup_reason, S_IRUGO, hotkey_wakeup_reason_show, NULL);
 
-void hotkey_wakeup_reason_notify_change(void)
+static void hotkey_wakeup_reason_notify_change(void)
 {
        if (tp_features.hotkey_mask)
                sysfs_notify(&tpacpi_pdev->dev.kobj, NULL,
        __ATTR(wakeup_hotunplug_complete, S_IRUGO,
               hotkey_wakeup_hotunplug_complete_show, NULL);
 
-void hotkey_wakeup_hotunplug_complete_notify_change(void)
+static void hotkey_wakeup_hotunplug_complete_notify_change(void)
 {
        if (tp_features.hotkey_mask)
                sysfs_notify(&tpacpi_pdev->dev.kobj, NULL,