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-rw-r--r--tools/bpf/bpftool/json_writer.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/bpf/bpftool/json_writer.h b/tools/bpf/bpftool/json_writer.h
index 0fa2fb1b6351..c1ab51aed99c 100644
--- a/tools/bpf/bpftool/json_writer.h
+++ b/tools/bpf/bpftool/json_writer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
/*
* Simple streaming JSON writer
*