1 files changed, 0 insertions, 2 deletions

diff --git a/include/linux/stop_machine.h b/include/linux/stop_machine.h
index e0f2da25d751..4a9d0c7edc65 100644
--- a/include/linux/stop_machine.h
+++ b/include/linux/stop_machine.h
@@ -27,8 +27,6 @@ struct cpu_stop_work {
         struct cpu_stop_done    *done;
 };
 
-extern struct mutex stop_cpus_mutex;
-
 int stop_one_cpu(unsigned int cpu, cpu_stop_fn_t fn, void *arg);
 void stop_one_cpu_nowait(unsigned int cpu, cpu_stop_fn_t fn, void *arg,
                          struct cpu_stop_work *work_buf);