diff --git a/kernel/power/poweroff.c b/kernel/power/poweroff.c
index 7ef6866b521d..6d475281c730 100644
--- a/kernel/power/poweroff.c
+++ b/kernel/power/poweroff.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * poweroff.c - sysrq handler to gracefully power down machine.
- *
- * This file is released under the GPL v2
  */
 
 #include <linux/kernel.h>
diff --git a/lib/klist.c b/lib/klist.c
index f6b547812fe3..332a4fbf18ff 100644
--- a/lib/klist.c
+++ b/lib/klist.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * klist.c - Routines for manipulating klists.
  *
  * Copyright (C) 2005 Patrick Mochel
  *
- * This file is released under the GPL v2.
- *
  * This klist interface provides a couple of structures that wrap around
  * struct list_head to provide explicit list "head" (struct klist) and list
  * "node" (struct klist_node) objects. For struct klist, a spinlock is
diff --git a/mm/interval_tree.c b/mm/interval_tree.c
index 27ddfd29112a..11c75fb07584 100644
--- a/mm/interval_tree.c
+++ b/mm/interval_tree.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * mm/interval_tree.c - interval tree for mapping->i_mmap
  *
  * Copyright (C) 2012, Michel Lespinasse <walken@google.com>
- *
- * This file is released under the GPL v2.
  */
 
 #include <linux/mm.h>