1 files changed, 0 insertions, 10 deletions

diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index bf39a369e4b3..54b72781e920 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -464,16 +464,6 @@ void __trace_stack(struct trace_array *tr,
 
 extern cycle_t ftrace_now(int cpu);
 
-#ifdef CONFIG_FUNCTION_TRACER
-void tracing_start_function_trace(void);
-void tracing_stop_function_trace(void);
-#else
-# define tracing_start_function_trace()         do { } while (0)
-# define tracing_stop_function_trace()          do { } while (0)
-#endif
-
-extern int ftrace_function_enabled;
-
 #ifdef CONFIG_CONTEXT_SWITCH_TRACER
 typedef void
 (*tracer_switch_func_t)(void *private,