net: cdc_ether: export usbnet_cdc_update_filter

This makes the function available to other drivers, like cdc_ncm.
Signed-off-by: Miguel Rodríguez Pérez <miguel@det.uvigo.gal>
Acked-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/usb/cdc_ether.c

@@ -63,7 +63,7 @@ static const u8 mbm_guid[16] = {
 	0xa6, 0x07, 0xc0, 0xff, 0xcb, 0x7e, 0x39, 0x2a,
 };
 
-static void usbnet_cdc_update_filter(struct usbnet *dev)
+void usbnet_cdc_update_filter(struct usbnet *dev)
 {
 	struct net_device	*net = dev->net;
 
@@ -90,6 +90,7 @@ static void usbnet_cdc_update_filter(struct usbnet *dev)
 			USB_CTRL_SET_TIMEOUT
 		);
 }
+EXPORT_SYMBOL_GPL(usbnet_cdc_update_filter);
 
 /* probes control interface, claims data interface, collects the bulk
  * endpoints, activates data interface (if needed), maybe sets MTU.

include/linux/usb/usbnet.h

@@ -207,6 +207,7 @@ struct cdc_state {
 	struct usb_interface		*data;
 };
 
+extern void usbnet_cdc_update_filter(struct usbnet *dev);
 extern int usbnet_generic_cdc_bind(struct usbnet *, struct usb_interface *);
 extern int usbnet_ether_cdc_bind(struct usbnet *dev, struct usb_interface *intf);
 extern int usbnet_cdc_bind(struct usbnet *, struct usb_interface *);