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>
diff --git a/kernel/trace/trace_sched_wakeup.c b/kernel/trace/trace_sched_wakeup.c
index 31689d2..7319559 100644
--- a/kernel/trace/trace_sched_wakeup.c
+++ b/kernel/trace/trace_sched_wakeup.c
@@ -130,6 +130,7 @@
{
.func = wakeup_tracer_call,
};
+#endif /* CONFIG_FUNCTION_TRACER */
static int start_func_tracer(int graph)
{
@@ -159,8 +160,6 @@
unregister_ftrace_graph();
}
-#endif /* CONFIG_FUNCTION_TRACER */
-
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
static int wakeup_set_flag(u32 old_flags, u32 bit, int set)
{