v4.19.13 snapshot.
diff --git a/include/linux/openvswitch.h b/include/linux/openvswitch.h
new file mode 100644
index 0000000..379affc
--- /dev/null
+++ b/include/linux/openvswitch.h
@@ -0,0 +1,29 @@
+/*
+ * Copyright (c) 2007-2011 Nicira Networks.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public
+ * License as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA
+ */
+
+#ifndef _LINUX_OPENVSWITCH_H
+#define _LINUX_OPENVSWITCH_H 1
+
+#include <uapi/linux/openvswitch.h>
+
+#define OVS_CLONE_ATTR_EXEC 0 /* Specify an u32 value. When nonzero,
+ * actions in clone will not change flow
+ * keys. False otherwise.
+ */
+
+#endif /* _LINUX_OPENVSWITCH_H */