From 7e40798f406fe73f9bac496a390daabd8768a8f7 Mon Sep 17 00:00:00 2001
From: Steven Rostedt <srostedt@redhat.com>
Date: Tue, 19 Oct 2010 10:56:19 -0400
Subject: [PATCH] tracing: Fix compile issue for trace_sched_wakeup.c
The function start_func_tracer() was incorrectly added in the
#ifdef CONFIG_FUNCTION_TRACER condition, but is still used even
when function tracing is not enabled.
The calls to register_ftrace_function() and register_ftrace_graph()
become nops (and their arguments are even ignored), thus there is
no reason to hide start_func_tracer() when function tracing is
not enabled.
Reported-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
kernel/trace/trace_sched_wakeup.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/kernel/trace/trace_sched_wakeup.c b/kernel/trace/trace_sched_wakeup.c
index 31689d2df7f3..7319559ed59f 100644
--- a/kernel/trace/trace_sched_wakeup.c
+++ b/kernel/trace/trace_sched_wakeup.c
@@ -130,6 +130,7 @@ static struct ftrace_ops trace_ops __read_mostly =
{
.func = wakeup_tracer_call,
};
+#endif /* CONFIG_FUNCTION_TRACER */
static int start_func_tracer(int graph)
{
@@ -159,8 +160,6 @@ static void stop_func_tracer(int graph)
unregister_ftrace_graph();
}
-#endif /* CONFIG_FUNCTION_TRACER */
-
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
static int wakeup_set_flag(u32 old_flags, u32 bit, int set)
{
--
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