ftrace: remove ctrl_update method

Impact: Remove the ctrl_update tracer method

With the new quick start/stop method of tracing, the ctrl_update
method is out of date.

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

1 files changed, 0 insertions, 10 deletions

diff --git a/kernel/trace/trace_sched_switch.c b/kernel/trace/trace_sched_switch.c
index 79410db64d6..7b73fd11e4a 100644
--- a/kernel/trace/trace_sched_switch.c
+++ b/kernel/trace/trace_sched_switch.c
@@ -220,15 +220,6 @@ static void sched_switch_trace_reset(struct trace_array *tr)
                 stop_sched_trace(tr);
 }
 
-static void sched_switch_trace_ctrl_update(struct trace_array *tr)
-{
-        /* When starting a new trace, reset the buffers */
-        if (tr->ctrl)
-                start_sched_trace(tr);
-        else
-                stop_sched_trace(tr);
-}
-
 static void sched_switch_trace_start(struct trace_array *tr)
 {
         sched_switch_reset(tr);
@@ -247,7 +238,6 @@ static struct tracer sched_switch_trace __read_mostly =
         .reset          = sched_switch_trace_reset,
         .start          = sched_switch_trace_start,
         .stop           = sched_switch_trace_stop,
-        .ctrl_update    = sched_switch_trace_ctrl_update,
 #ifdef CONFIG_FTRACE_SELFTEST
         .selftest    = trace_selftest_startup_sched_switch,
 #endif