diff --git a/include/linux/usb/composite.h b/include/linux/usb/composite.h
index a212ec3..3c671c1 100644
--- a/include/linux/usb/composite.h
+++ b/include/linux/usb/composite.h
@@ -375,6 +375,7 @@
 	unsigned int			suspended:1;
 	struct usb_device_descriptor	desc;
 	struct list_head		configs;
+	struct list_head		gstrings;
 	struct usb_composite_driver	*driver;
 	u8				next_string_id;
 	char				*def_manufacturer;
@@ -396,6 +397,9 @@
 extern int usb_string_id(struct usb_composite_dev *c);
 extern int usb_string_ids_tab(struct usb_composite_dev *c,
 			      struct usb_string *str);
+extern struct usb_string *usb_gstrings_attach(struct usb_composite_dev *cdev,
+		struct usb_gadget_strings **sp, unsigned n_strings);
+
 extern int usb_string_ids_n(struct usb_composite_dev *c, unsigned n);
 
 extern void composite_disconnect(struct usb_gadget *gadget);
diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index 6215670..e4c119e 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -913,6 +913,11 @@
 	struct usb_string	*strings;
 };
 
+struct usb_gadget_string_container {
+	struct list_head        list;
+	u8                      *stash[0];
+};
+
 /* put descriptor for string with that id into buf (buflen >= 256) */
 int usb_gadget_get_string(struct usb_gadget_strings *table, int id, u8 *buf);