v4.19.13 snapshot.
diff --git a/arch/um/os-Linux/drivers/tuntap.h b/arch/um/os-Linux/drivers/tuntap.h
new file mode 100644
index 0000000..7367354
--- /dev/null
+++ b/arch/um/os-Linux/drivers/tuntap.h
@@ -0,0 +1,21 @@
+/*
+ * Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
+ * Licensed under the GPL
+ */
+
+#ifndef __UM_TUNTAP_H
+#define __UM_TUNTAP_H
+
+#include <net_user.h>
+
+struct tuntap_data {
+ char *dev_name;
+ int fixed_config;
+ char *gate_addr;
+ int fd;
+ void *dev;
+};
+
+extern const struct net_user_info tuntap_user_info;
+
+#endif