17 files changed, 17 insertions, 0 deletions
diff --git a/samples/Kconfig b/samples/Kconfig
index 0561a94f6fdb..d63cc8a3e0df 100644
--- a/samples/Kconfig
+++ b/samples/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
 menuconfig SAMPLES
 	bool "Sample kernel code"
 	depends on !UML
diff --git a/samples/binderfs/Makefile b/samples/binderfs/Makefile
index 01ca9f2529a7..ea4c93d36256 100644
--- a/samples/binderfs/Makefile
+++ b/samples/binderfs/Makefile
@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
 obj-$(CONFIG_SAMPLE_ANDROID_BINDERFS) += binderfs_example.o
diff --git a/samples/configfs/Makefile b/samples/configfs/Makefile
index a9afd99630fc..92d661fcba6d 100644
--- a/samples/configfs/Makefile
+++ b/samples/configfs/Makefile
@@ -1,2 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0-only
 
 obj-$(CONFIG_SAMPLE_CONFIGFS) += configfs_sample.o
diff --git a/samples/hw_breakpoint/Makefile b/samples/hw_breakpoint/Makefile
index 0f5c31c2fc47..ef4b6fdd7d9c 100644
--- a/samples/hw_breakpoint/Makefile
+++ b/samples/hw_breakpoint/Makefile
@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
 obj-$(CONFIG_SAMPLE_HW_BREAKPOINT) += data_breakpoint.o
diff --git a/samples/kdb/Makefile b/samples/kdb/Makefile
index fbedf39d9356..947cb852279c 100644
--- a/samples/kdb/Makefile
+++ b/samples/kdb/Makefile
@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
 obj-$(CONFIG_SAMPLE_KDB) += kdb_hello.o
diff --git a/samples/kfifo/Makefile b/samples/kfifo/Makefile
index bcc9484a15b2..0af5250ad944 100644
--- a/samples/kfifo/Makefile
+++ b/samples/kfifo/Makefile
@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
 obj-$(CONFIG_SAMPLE_KFIFO) += bytestream-example.o dma-example.o inttype-example.o record-example.o
diff --git a/samples/kobject/Makefile b/samples/kobject/Makefile
index 4a194203c982..bb5d2199742b 100644
--- a/samples/kobject/Makefile
+++ b/samples/kobject/Makefile
@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
 obj-$(CONFIG_SAMPLE_KOBJECT) += kobject-example.o kset-example.o
diff --git a/samples/kprobes/Makefile b/samples/kprobes/Makefile
index 880e54d2c082..e774592718d6 100644
--- a/samples/kprobes/Makefile
+++ b/samples/kprobes/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
 # builds the kprobes example kernel modules;
 # then to use one (as root):  insmod <module_name.ko>
 
diff --git a/samples/livepatch/Makefile b/samples/livepatch/Makefile
index 2472ce39a18d..9f853eeb6140 100644
--- a/samples/livepatch/Makefile
+++ b/samples/livepatch/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
 obj-$(CONFIG_SAMPLE_LIVEPATCH) += livepatch-sample.o
 obj-$(CONFIG_SAMPLE_LIVEPATCH) += livepatch-shadow-mod.o
 obj-$(CONFIG_SAMPLE_LIVEPATCH) += livepatch-shadow-fix1.o
diff --git a/samples/qmi/Makefile b/samples/qmi/Makefile
index 2b111d2769df..641943d40c4a 100644
--- a/samples/qmi/Makefile
+++ b/samples/qmi/Makefile
@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
 obj-$(CONFIG_SAMPLE_QMI_CLIENT) += qmi_sample_client.o
diff --git a/samples/rpmsg/Makefile b/samples/rpmsg/Makefile
index 2d4973c69663..ddf9a5d13cad 100644
--- a/samples/rpmsg/Makefile
+++ b/samples/rpmsg/Makefile
@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
 obj-$(CONFIG_SAMPLE_RPMSG_CLIENT) += rpmsg_client_sample.o
diff --git a/samples/trace_events/Makefile b/samples/trace_events/Makefile
index 0f8d92120c4e..b78344e7bbed 100644
--- a/samples/trace_events/Makefile
+++ b/samples/trace_events/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
 # builds the trace events example kernel modules;
 # then to use one (as root):  insmod <module_name.ko>
 
diff --git a/samples/trace_printk/Makefile b/samples/trace_printk/Makefile
index 19900ab2b00d..c0df36167d60 100644
--- a/samples/trace_printk/Makefile
+++ b/samples/trace_printk/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
 # builds a module that calls various trace_printk routines
 # then to use one (as root):  insmod <module_name.ko>
 
diff --git a/samples/uhid/Makefile b/samples/uhid/Makefile
index 8d7fd6190ac4..8c9bc9f98d37 100644
--- a/samples/uhid/Makefile
+++ b/samples/uhid/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
 # List of programs to build
 hostprogs-y := uhid-example
 
diff --git a/samples/v4l/Makefile b/samples/v4l/Makefile
index 65a351d75c95..f86ab1245810 100644
--- a/samples/v4l/Makefile
+++ b/samples/v4l/Makefile
@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
 obj-$(CONFIG_VIDEO_PCI_SKELETON) := v4l2-pci-skeleton.o
diff --git a/samples/vfio-mdev/Makefile b/samples/vfio-mdev/Makefile
index 7db889ca135c..10d179c4fdeb 100644
--- a/samples/vfio-mdev/Makefile
+++ b/samples/vfio-mdev/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
 obj-$(CONFIG_SAMPLE_VFIO_MDEV_MTTY) += mtty.o
 obj-$(CONFIG_SAMPLE_VFIO_MDEV_MDPY) += mdpy.o
 obj-$(CONFIG_SAMPLE_VFIO_MDEV_MDPY_FB) += mdpy-fb.o
diff --git a/samples/vfs/Makefile b/samples/vfs/Makefile
index a3e4ffd4c773..e21c9f6fe9be 100644
--- a/samples/vfs/Makefile
+++ b/samples/vfs/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
 # List of programs to build
 hostprogs-y := \
 	test-fsmount \