diff --git a/[refs] b/[refs]
index 14dcba6f9bf8..a6ec6d364531 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 518de9b39e854542de59bfb8b9f61c8f7ecf808b
+refs/heads/master: ca51c5a76345b28c6f1b742f9f5f0a6fc9afd9ca
diff --git a/trunk/kernel/stop_machine.c b/trunk/kernel/stop_machine.c
index 090c28812ce1..3cb4a9a8ae1c 100644
--- a/trunk/kernel/stop_machine.c
+++ b/trunk/kernel/stop_machine.c
@@ -262,7 +262,7 @@ static int cpu_stopper_thread(void *data)
 		cpu_stop_fn_t fn = work->fn;
 		void *arg = work->arg;
 		struct cpu_stop_done *done = work->done;
-		char ksym_buf[KSYM_NAME_LEN];
+		char ksym_buf[KSYM_NAME_LEN] __maybe_unused;
 
 		__set_current_state(TASK_RUNNING);