* state - control system sleep states.
*
* show() returns available sleep state labels, which may be "mem", "standby",
- * "freeze" and "disk" (hibernation). See Documentation/power/states.txt for a
- * description of what they mean.
+ * "freeze" and "disk" (hibernation).
+ * See Documentation/admin-guide/pm/sleep-states.rst for a description of
+ * what they mean.
*
* store() accepts one of those strings, translates it into the proper
* enumerated value, and initiates a suspend transition.