[PATCH] USB: drivers/usb/core/message.c: make usb_get_string() static

After the removal of usb-midi.c, there's no longer any external user of
usb_get_string().

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c
index 7135e54..2f6009b 100644
--- a/drivers/usb/core/message.c
+++ b/drivers/usb/core/message.c
@@ -631,8 +631,8 @@
  * Returns the number of bytes received on success, or else the status code
  * returned by the underlying usb_control_msg() call.
  */
-int usb_get_string(struct usb_device *dev, unsigned short langid,
-		unsigned char index, void *buf, int size)
+static int usb_get_string(struct usb_device *dev, unsigned short langid,
+			  unsigned char index, void *buf, int size)
 {
 	int i;
 	int result;
@@ -1488,7 +1488,6 @@
 // synchronous control message convenience routines
 EXPORT_SYMBOL(usb_get_descriptor);
 EXPORT_SYMBOL(usb_get_status);
-EXPORT_SYMBOL(usb_get_string);
 EXPORT_SYMBOL(usb_string);
 
 // synchronous calls that also maintain usbcore state