ftrace: remove trace array ctrl

Impact: remove obsolete variable in trace_array structure

With the new start / stop method of ftrace, the ctrl variable
in the trace_array structure is now obsolete. Remove it.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 4 insertions, 8 deletions

diff --git a/kernel/trace/trace_sched_wakeup.c b/kernel/trace/trace_sched_wakeup.c
index 23e54d4e4d92..983f2b1478c9 100644
--- a/kernel/trace/trace_sched_wakeup.c
+++ b/kernel/trace/trace_sched_wakeup.c
@@ -334,18 +334,14 @@ static void stop_wakeup_tracer(struct trace_array *tr)
 static void wakeup_tracer_init(struct trace_array *tr)
 {
         wakeup_trace = tr;
-
-        if (tr->ctrl)
-                start_wakeup_tracer(tr);
+        start_wakeup_tracer(tr);
 }
 
 static void wakeup_tracer_reset(struct trace_array *tr)
 {
-        if (tr->ctrl) {
-                stop_wakeup_tracer(tr);
-                /* make sure we put back any tasks we are tracing */
-                wakeup_reset(tr);
-        }
+        stop_wakeup_tracer(tr);
+        /* make sure we put back any tasks we are tracing */
+        wakeup_reset(tr);
 }
 
 static void wakeup_tracer_start(struct trace_array *tr)