+cxl_mem-y := mem.o
diff --git a/drivers/cxl/mem.c b/drivers/cxl/mem.c
new file mode 100644
index 000000000000..f4ee9a507ac9
--- /dev/null
+++ b/drivers/cxl/mem.c
@@ -0,0 +1,61 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/* Copyright(c) 2020 Intel Corporation. All rights reserved. */
Can those two comments have the same type? As in either
stay with // or do /*.
Also the year is incorrect.