From: Steven Rostedt <srostedt@redhat.com>
Date: Tue, 19 Oct 2010 14:56:19 +0000 (-0400)
Subject: tracing: Fix compile issue for trace_sched_wakeup.c
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=7e40798f406fe73f9bac496a390daabd8768a8f7;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

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 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)
 {