v4.19.13 snapshot.
diff --git a/fs/sysfs/Makefile b/fs/sysfs/Makefile
new file mode 100644
index 0000000..6eff6e1
--- /dev/null
+++ b/fs/sysfs/Makefile
@@ -0,0 +1,5 @@
+#
+# Makefile for the sysfs virtual filesystem
+#
+
+obj-y		:= file.o dir.o symlink.o mount.o group.o