diff --git a/include/linux/kobject.h b/include/linux/kobject.h
index e0a6205caa71..ac59b67f131e 100644
--- a/include/linux/kobject.h
+++ b/include/linux/kobject.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * kobject.h - generic kernel object infrastructure.
  *
diff --git a/include/linux/kobject_ns.h b/include/linux/kobject_ns.h
index df32d2508290..7dd22132cc13 100644
--- a/include/linux/kobject_ns.h
+++ b/include/linux/kobject_ns.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* Kernel object name space definitions
  *
  * Copyright (c) 2002-2003 Patrick Mochel
diff --git a/lib/kobject.c b/lib/kobject.c
index 763d70a18941..450e771d0ac7 100644
--- a/lib/kobject.c
+++ b/lib/kobject.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * kobject.c - library routines for handling generic kernel objects
  *
diff --git a/lib/kobject_uevent.c b/lib/kobject_uevent.c
index c3e84edc47c9..bbedaf359a1e 100644
--- a/lib/kobject_uevent.c
+++ b/lib/kobject_uevent.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * kernel userspace event delivery
  *
diff --git a/samples/kobject/kobject-example.c b/samples/kobject/kobject-example.c
index 2e0740f06cd7..6cc8bb36a4e8 100644
--- a/samples/kobject/kobject-example.c
+++ b/samples/kobject/kobject-example.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Sample kobject implementation
  *
diff --git a/samples/kobject/kset-example.c b/samples/kobject/kset-example.c
index a55bff52bde3..58543eca7f16 100644
--- a/samples/kobject/kset-example.c
+++ b/samples/kobject/kset-example.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Sample kset and ktype implementation
  *