cdc: add header guards
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/usb/cdc.h b/include/linux/usb/cdc.h
index 959d0c8..b5706f9 100644
--- a/include/linux/usb/cdc.h
+++ b/include/linux/usb/cdc.h
@@ -7,6 +7,8 @@
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*/
+#ifndef __LINUX_USB_CDC_H
+#define __LINUX_USB_CDC_H
#include <uapi/linux/usb/cdc.h>
@@ -45,3 +47,5 @@
struct usb_interface *intf,
u8 *buffer,
int buflen);
+
+#endif /* __LINUX_USB_CDC_H */