--- a/include/linux/sysctl.h
+++ b/include/linux/sysctl.h
@@ -275,6 +275,7 @@ enum
 	NET_CORE_AEVENT_ETIME=20,
 	NET_CORE_AEVENT_RSEQTH=21,
 	NET_CORE_WARNINGS=22,
+	NET_CORE_KILL_ROUTES_ON_LINKDOWN=23,
 };
 
 /* /proc/sys/net/ethernet */
diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
index 2b9cd8d..ecd4cc5 100644
