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-rw-r--r--tools/cgroup/Makefile1
-rw-r--r--tools/cgroup/cgroup_event_listener.c1
2 files changed, 2 insertions, 0 deletions
diff --git a/tools/cgroup/Makefile b/tools/cgroup/Makefile
index b4286196b763..860fa151640a 100644
--- a/tools/cgroup/Makefile
+++ b/tools/cgroup/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
# Makefile for cgroup tools
CC = $(CROSS_COMPILE)gcc
diff --git a/tools/cgroup/cgroup_event_listener.c b/tools/cgroup/cgroup_event_listener.c
index 4eb5507205c9..3d70dc831a76 100644
--- a/tools/cgroup/cgroup_event_listener.c
+++ b/tools/cgroup/cgroup_event_listener.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* cgroup_event_listener.c - Simple listener of cgroup events
*