Stop-machine pull request for v7.1

This pull request contains kernel-doc updates for the stop_machine()
 and stop_machine_cpuslocked() functions.
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Merge tag 'stop-machine.2026.04.16a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu

Pull stop-machine update from Paul McKenney:

 - kernel-doc updates for stop_machine() and stop_machine_cpuslocked()
   functions

* tag 'stop-machine.2026.04.16a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu:
  stop_machine: Fix the documentation for a NULL cpus argument

include/linux/stop_machine.h

@@ -99,7 +99,7 @@ static inline void print_stop_info(const char *log_lvl, struct task_struct *task
  * stop_machine: freeze the machine on all CPUs and run this function
  * @fn: the function to run
  * @data: the data ptr to pass to @fn()
- * @cpus: the cpus to run @fn() on (NULL = run on each online CPU)
+ * @cpus: the cpus to run @fn() on (NULL = one unspecified online CPU)
  *
  * Description: This causes a thread to be scheduled on every CPU, which
  * will run with interrupts disabled.  Each CPU specified by @cpus will
@@ -133,7 +133,7 @@ int stop_machine(cpu_stop_fn_t fn, void *data, const struct cpumask *cpus);
  * stop_machine_cpuslocked: freeze the machine on all CPUs and run this function
  * @fn: the function to run
  * @data: the data ptr to pass to @fn()
- * @cpus: the cpus to run @fn() on (NULL = run on each online CPU)
+ * @cpus: the cpus to run @fn() on (NULL = one unspecified online CPU)
  *
  * Same as above.  Avoids nested calls to cpus_read_lock().
  *