linux-kernel - [PATCH v2 6/6] ftrace: Fix compilation warning about control_ops

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Date:	Mon, 10 Mar 2014 21:42:11 +0100
From:	Jiri Slaby <jslaby@...e.cz>
To:	rostedt@...dmis.org
Cc:	jirislaby@...il.com, linux-kernel@...r.kernel.org,
	Jiri Slaby <jslaby@...e.cz>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Ingo Molnar <mingo@...hat.com>
Subject: [PATCH v2 6/6] ftrace: Fix compilation warning about control_ops_free

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)
             ^
Move that function around to an already existing #ifdef
CONFIG_DYNAMIC_FTRACE block as the function is used solely from the
dynamic function tracing functions.

[v2]
* move the function to an existing block

Signed-off-by: Jiri Slaby <jslaby@...e.cz>
Cc: Steven Rostedt <rostedt@...dmis.org>
Cc: Frederic Weisbecker <fweisbec@...il.com>
Cc: Ingo Molnar <mingo@...hat.com>
---
 kernel/trace/ftrace.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 5bd70e8b09b0..60346fb76664 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -237,11 +237,6 @@ static int control_ops_alloc(struct ftrace_ops *ops)
 	return 0;
 }
 
-static void control_ops_free(struct ftrace_ops *ops)
-{
-	free_percpu(ops->disabled);
-}
-
 static void update_global_ops(void)
 {
 	ftrace_func_t func = ftrace_global_list_func;
@@ -2093,6 +2088,11 @@ static ftrace_func_t saved_ftrace_func;
 static int ftrace_start_up;
 static int global_start_up;
 
+static void control_ops_free(struct ftrace_ops *ops)
+{
+	free_percpu(ops->disabled);
+}
+
 static void ftrace_startup_enable(int command)
 {
 	if (saved_ftrace_func != ftrace_trace_function) {
-- 
1.9.0

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