[PATCH v2 6/6] ftrace: Fix compilation warning about control_ops_free

[Jiri Slaby <jslaby@suse.cz>]

With CONFIG_DYNAMIC_FTRACE=n, I see a warning:
kernel/trace/ftrace.c:240:13: warning: 'control_ops_free' defined but not used
 static void control_ops_free(struct ftrace_ops *ops)
             ^
Add an ifdef block with CONFIG_DYNAMIC_FTRACE around that function as
it is used solely from the dynamic function tracing functions.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
---
 kernel/trace/ftrace.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 5bd70e8b09b0..34b1de9390af 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -237,10 +237,12 @@ static int control_ops_alloc(struct ftrace_ops *ops)
 	return 0;
 }
 
+#ifdef CONFIG_DYNAMIC_FTRACE
 static void control_ops_free(struct ftrace_ops *ops)
 {
 	free_percpu(ops->disabled);
 }
+#endif
 
 static void update_global_ops(void)
 {
-- 
1.8.5.2