v4.19.13 snapshot.
diff --git a/include/linux/fddidevice.h b/include/linux/fddidevice.h
new file mode 100644
index 0000000..32c22cf
--- /dev/null
+++ b/include/linux/fddidevice.h
@@ -0,0 +1,32 @@
+/*
+ * INET An implementation of the TCP/IP protocol suite for the LINUX
+ * operating system. INET is implemented using the BSD Socket
+ * interface as the means of communication with the user level.
+ *
+ * Definitions for the FDDI handlers.
+ *
+ * Version: @(#)fddidevice.h 1.0.0 08/12/96
+ *
+ * Author: Lawrence V. Stefani, <stefani@lkg.dec.com>
+ *
+ * fddidevice.h is based on previous trdevice.h work by
+ * Ross Biro
+ * Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
+ * Alan Cox, <gw4pts@gw4pts.ampr.org>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+#ifndef _LINUX_FDDIDEVICE_H
+#define _LINUX_FDDIDEVICE_H
+
+#include <linux/if_fddi.h>
+
+#ifdef __KERNEL__
+__be16 fddi_type_trans(struct sk_buff *skb, struct net_device *dev);
+struct net_device *alloc_fddidev(int sizeof_priv);
+#endif
+
+#endif /* _LINUX_FDDIDEVICE_H */