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-rw-r--r--Documentation/admin-guide/pm/cpuidle.rst2
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diff --git a/Documentation/admin-guide/pm/cpuidle.rst b/Documentation/admin-guide/pm/cpuidle.rst
index 9c58b35a81cb..ab8fa0856095 100644
--- a/Documentation/admin-guide/pm/cpuidle.rst
+++ b/Documentation/admin-guide/pm/cpuidle.rst
@@ -1,3 +1,5 @@
+.. SPDX-License-Identifier: GPL-2.0
+
.. |struct cpuidle_state| replace:: :c:type:`struct cpuidle_state <cpuidle_state>`
.. |cpufreq| replace:: :doc:`CPU Performance Scaling <cpufreq>`