diff --git a/drivers/dfu/dfu.c b/drivers/dfu/dfu.c
index 14cb366..648f261 100644
--- a/drivers/dfu/dfu.c
+++ b/drivers/dfu/dfu.c
@@ -17,7 +17,6 @@
 #include <linux/list.h>
 #include <linux/compiler.h>
 
-static bool dfu_detach_request;
 static LIST_HEAD(dfu_list);
 static int dfu_alt_num;
 static int alt_num_cnt;
@@ -39,21 +38,6 @@
 	return true;
 }
 
-bool dfu_detach(void)
-{
-	return dfu_detach_request;
-}
-
-void dfu_trigger_detach(void)
-{
-	dfu_detach_request = true;
-}
-
-void dfu_clear_detach(void)
-{
-	dfu_detach_request = false;
-}
-
 static int dfu_find_alt_num(const char *s)
 {
 	int i = 0;
diff --git a/drivers/usb/gadget/f_dfu.c b/drivers/usb/gadget/f_dfu.c
index 16fc9dd..ead71eb 100644
--- a/drivers/usb/gadget/f_dfu.c
+++ b/drivers/usb/gadget/f_dfu.c
@@ -366,7 +366,7 @@
 		to_runtime_mode(f_dfu);
 		f_dfu->dfu_state = DFU_STATE_appIDLE;
 
-		dfu_trigger_detach();
+		g_dnl_trigger_detach();
 		break;
 	default:
 		f_dfu->dfu_state = DFU_STATE_dfuERROR;
diff --git a/drivers/usb/gadget/g_dnl.c b/drivers/usb/gadget/g_dnl.c
index 25611ac..ee52a29 100644
--- a/drivers/usb/gadget/g_dnl.c
+++ b/drivers/usb/gadget/g_dnl.c
@@ -163,6 +163,23 @@
 	return -EOPNOTSUPP;
 }
 
+static bool g_dnl_detach_request;
+
+bool g_dnl_detach(void)
+{
+	return g_dnl_detach_request;
+}
+
+void g_dnl_trigger_detach(void)
+{
+	g_dnl_detach_request = true;
+}
+
+void g_dnl_clear_detach(void)
+{
+	g_dnl_detach_request = false;
+}
+
 static int g_dnl_get_bcd_device_number(struct usb_composite_dev *cdev)
 {
 	struct usb_gadget *gadget = cdev->gadget;