v4.19.13 snapshot.
diff --git a/include/linux/wanrouter.h b/include/linux/wanrouter.h
new file mode 100644
index 0000000..f635855
--- /dev/null
+++ b/include/linux/wanrouter.h
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * wanrouter.h	Legacy declarations kept around until X25 is removed
+ */
+
+#ifndef	_ROUTER_H
+#define	_ROUTER_H
+
+#include <uapi/linux/wanrouter.h>
+
+#endif	/* _ROUTER_H */