Re: [PATCH 2/5] selftests: ftrace: Fix test cases to enable tracing

2016-10-25 Thread Masami Hiramatsu 
Hi Steve,

On Mon, 24 Oct 2016 15:50:27 -0400
Steven Rostedt  wrote:

> On Wed, 19 Oct 2016 13:53:46 +0900
> Masami Hiramatsu  wrote:
> 
> > Fix some test cases to enable tracing before starting
> > trace test. This can avoid false-positive failure when
> > previous testcase fails while disabling tracing.
> 
> I wonder if this would be better to do the enabling from the ftracetest
> script instead. Then the tests would need to worry about it.

Hm, sounds reasonable. Also some other options should be reset for
avoiding unexpected failure. I'll try that.

Thanks!

> 
> -- Steve
> 
> 
> > 
> > Signed-off-by: Masami Hiramatsu 
> > ---
> >  .../selftests/ftrace/test.d/event/event-enable.tc  |1 +
> >  .../selftests/ftrace/test.d/event/event-pid.tc |1 +
> >  .../ftrace/test.d/event/subsystem-enable.tc|1 +
> >  .../ftrace/test.d/event/toplevel-enable.tc |1 +
> >  .../ftrace/test.d/ftrace/func_profiler.tc  |1 +
> >  .../ftrace/test.d/kprobe/kprobe_ftrace.tc  |1 +
> >  6 files changed, 6 insertions(+)
> > 
> > diff --git a/tools/testing/selftests/ftrace/test.d/event/event-enable.tc 
> > b/tools/testing/selftests/ftrace/test.d/event/event-enable.tc
> > index 87eb9d6..ee7ea0a 100644
> > --- a/tools/testing/selftests/ftrace/test.d/event/event-enable.tc
> > +++ b/tools/testing/selftests/ftrace/test.d/event/event-enable.tc
> > @@ -23,6 +23,7 @@ fi
> >  
> >  reset_tracer
> >  do_reset
> > +enable_tracing
> >  
> >  echo 'sched:sched_switch' > set_event
> >  
> > diff --git a/tools/testing/selftests/ftrace/test.d/event/event-pid.tc 
> > b/tools/testing/selftests/ftrace/test.d/event/event-pid.tc
> > index d4ab27b..1477e5e 100644
> > --- a/tools/testing/selftests/ftrace/test.d/event/event-pid.tc
> > +++ b/tools/testing/selftests/ftrace/test.d/event/event-pid.tc
> > @@ -30,6 +30,7 @@ fi
> >  
> >  reset_tracer
> >  do_reset
> > +enable_tracing
> >  
> >  echo 1 > events/sched/sched_switch/enable
> >  
> > diff --git 
> > a/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc 
> > b/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc
> > index ced27ef..f4a64f9 100644
> > --- a/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc
> > +++ b/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc
> > @@ -23,6 +23,7 @@ fi
> >  
> >  reset_tracer
> >  do_reset
> > +enable_tracing
> >  
> >  echo 'sched:*' > set_event
> >  
> > diff --git a/tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc 
> > b/tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc
> > index 0bb5df3..037a82e 100644
> > --- a/tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc
> > +++ b/tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc
> > @@ -23,6 +23,7 @@ fi
> >  
> >  reset_tracer
> >  do_reset
> > +enable_tracing
> >  
> >  echo '*:*' > set_event
> >  
> > diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func_profiler.tc 
> > b/tools/testing/selftests/ftrace/test.d/ftrace/func_profiler.tc
> > index 7808336..d10d6e0 100644
> > --- a/tools/testing/selftests/ftrace/test.d/ftrace/func_profiler.tc
> > +++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_profiler.tc
> > @@ -36,6 +36,7 @@ fail() { # mesg
> >  
> >  echo "Testing function tracer with profiler:"
> >  echo "enable function tracer"
> > +enable_tracing
> >  echo function > current_tracer
> >  echo "enable profiler"
> >  echo 1 > function_profile_enabled
> > diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc 
> > b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc
> > index d6f2f49..bdbd385 100644
> > --- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc
> > +++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc
> > @@ -10,6 +10,7 @@ echo _do_fork > set_ftrace_filter
> >  echo 0 > events/enable
> >  echo > kprobe_events
> >  echo 'p:testprobe _do_fork' > kprobe_events
> > +enable_tracing
> >  
> >  # kprobe on / ftrace off
> >  echo 1 > events/kprobes/testprobe/enable
> 


-- 
Masami Hiramatsu

Re: [PATCH 2/5] selftests: ftrace: Fix test cases to enable tracing

2016-10-25 Thread Masami Hiramatsu 
Hi Steve,

On Mon, 24 Oct 2016 15:50:27 -0400
Steven Rostedt  wrote:

> On Wed, 19 Oct 2016 13:53:46 +0900
> Masami Hiramatsu  wrote:
> 
> > Fix some test cases to enable tracing before starting
> > trace test. This can avoid false-positive failure when
> > previous testcase fails while disabling tracing.
> 
> I wonder if this would be better to do the enabling from the ftracetest
> script instead. Then the tests would need to worry about it.

Hm, sounds reasonable. Also some other options should be reset for
avoiding unexpected failure. I'll try that.

Thanks!

> 
> -- Steve
> 
> 
> > 
> > Signed-off-by: Masami Hiramatsu 
> > ---
> >  .../selftests/ftrace/test.d/event/event-enable.tc  |1 +
> >  .../selftests/ftrace/test.d/event/event-pid.tc |1 +
> >  .../ftrace/test.d/event/subsystem-enable.tc|1 +
> >  .../ftrace/test.d/event/toplevel-enable.tc |1 +
> >  .../ftrace/test.d/ftrace/func_profiler.tc  |1 +
> >  .../ftrace/test.d/kprobe/kprobe_ftrace.tc  |1 +
> >  6 files changed, 6 insertions(+)
> > 
> > diff --git a/tools/testing/selftests/ftrace/test.d/event/event-enable.tc 
> > b/tools/testing/selftests/ftrace/test.d/event/event-enable.tc
> > index 87eb9d6..ee7ea0a 100644
> > --- a/tools/testing/selftests/ftrace/test.d/event/event-enable.tc
> > +++ b/tools/testing/selftests/ftrace/test.d/event/event-enable.tc
> > @@ -23,6 +23,7 @@ fi
> >  
> >  reset_tracer
> >  do_reset
> > +enable_tracing
> >  
> >  echo 'sched:sched_switch' > set_event
> >  
> > diff --git a/tools/testing/selftests/ftrace/test.d/event/event-pid.tc 
> > b/tools/testing/selftests/ftrace/test.d/event/event-pid.tc
> > index d4ab27b..1477e5e 100644
> > --- a/tools/testing/selftests/ftrace/test.d/event/event-pid.tc
> > +++ b/tools/testing/selftests/ftrace/test.d/event/event-pid.tc
> > @@ -30,6 +30,7 @@ fi
> >  
> >  reset_tracer
> >  do_reset
> > +enable_tracing
> >  
> >  echo 1 > events/sched/sched_switch/enable
> >  
> > diff --git 
> > a/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc 
> > b/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc
> > index ced27ef..f4a64f9 100644
> > --- a/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc
> > +++ b/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc
> > @@ -23,6 +23,7 @@ fi
> >  
> >  reset_tracer
> >  do_reset
> > +enable_tracing
> >  
> >  echo 'sched:*' > set_event
> >  
> > diff --git a/tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc 
> > b/tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc
> > index 0bb5df3..037a82e 100644
> > --- a/tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc
> > +++ b/tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc
> > @@ -23,6 +23,7 @@ fi
> >  
> >  reset_tracer
> >  do_reset
> > +enable_tracing
> >  
> >  echo '*:*' > set_event
> >  
> > diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func_profiler.tc 
> > b/tools/testing/selftests/ftrace/test.d/ftrace/func_profiler.tc
> > index 7808336..d10d6e0 100644
> > --- a/tools/testing/selftests/ftrace/test.d/ftrace/func_profiler.tc
> > +++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_profiler.tc
> > @@ -36,6 +36,7 @@ fail() { # mesg
> >  
> >  echo "Testing function tracer with profiler:"
> >  echo "enable function tracer"
> > +enable_tracing
> >  echo function > current_tracer
> >  echo "enable profiler"
> >  echo 1 > function_profile_enabled
> > diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc 
> > b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc
> > index d6f2f49..bdbd385 100644
> > --- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc
> > +++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc
> > @@ -10,6 +10,7 @@ echo _do_fork > set_ftrace_filter
> >  echo 0 > events/enable
> >  echo > kprobe_events
> >  echo 'p:testprobe _do_fork' > kprobe_events
> > +enable_tracing
> >  
> >  # kprobe on / ftrace off
> >  echo 1 > events/kprobes/testprobe/enable
> 


-- 
Masami Hiramatsu

Re: [PATCH 2/5] selftests: ftrace: Fix test cases to enable tracing

2016-10-24 Thread Steven Rostedt 
On Wed, 19 Oct 2016 13:53:46 +0900
Masami Hiramatsu  wrote:

> Fix some test cases to enable tracing before starting
> trace test. This can avoid false-positive failure when
> previous testcase fails while disabling tracing.

I wonder if this would be better to do the enabling from the ftracetest
script instead. Then the tests would need to worry about it.

-- Steve


> 
> Signed-off-by: Masami Hiramatsu 
> ---
>  .../selftests/ftrace/test.d/event/event-enable.tc  |1 +
>  .../selftests/ftrace/test.d/event/event-pid.tc |1 +
>  .../ftrace/test.d/event/subsystem-enable.tc|1 +
>  .../ftrace/test.d/event/toplevel-enable.tc |1 +
>  .../ftrace/test.d/ftrace/func_profiler.tc  |1 +
>  .../ftrace/test.d/kprobe/kprobe_ftrace.tc  |1 +
>  6 files changed, 6 insertions(+)
> 
> diff --git a/tools/testing/selftests/ftrace/test.d/event/event-enable.tc 
> b/tools/testing/selftests/ftrace/test.d/event/event-enable.tc
> index 87eb9d6..ee7ea0a 100644
> --- a/tools/testing/selftests/ftrace/test.d/event/event-enable.tc
> +++ b/tools/testing/selftests/ftrace/test.d/event/event-enable.tc
> @@ -23,6 +23,7 @@ fi
>  
>  reset_tracer
>  do_reset
> +enable_tracing
>  
>  echo 'sched:sched_switch' > set_event
>  
> diff --git a/tools/testing/selftests/ftrace/test.d/event/event-pid.tc 
> b/tools/testing/selftests/ftrace/test.d/event/event-pid.tc
> index d4ab27b..1477e5e 100644
> --- a/tools/testing/selftests/ftrace/test.d/event/event-pid.tc
> +++ b/tools/testing/selftests/ftrace/test.d/event/event-pid.tc
> @@ -30,6 +30,7 @@ fi
>  
>  reset_tracer
>  do_reset
> +enable_tracing
>  
>  echo 1 > events/sched/sched_switch/enable
>  
> diff --git a/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc 
> b/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc
> index ced27ef..f4a64f9 100644
> --- a/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc
> +++ b/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc
> @@ -23,6 +23,7 @@ fi
>  
>  reset_tracer
>  do_reset
> +enable_tracing
>  
>  echo 'sched:*' > set_event
>  
> diff --git a/tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc 
> b/tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc
> index 0bb5df3..037a82e 100644
> --- a/tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc
> +++ b/tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc
> @@ -23,6 +23,7 @@ fi
>  
>  reset_tracer
>  do_reset
> +enable_tracing
>  
>  echo '*:*' > set_event
>  
> diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func_profiler.tc 
> b/tools/testing/selftests/ftrace/test.d/ftrace/func_profiler.tc
> index 7808336..d10d6e0 100644
> --- a/tools/testing/selftests/ftrace/test.d/ftrace/func_profiler.tc
> +++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_profiler.tc
> @@ -36,6 +36,7 @@ fail() { # mesg
>  
>  echo "Testing function tracer with profiler:"
>  echo "enable function tracer"
> +enable_tracing
>  echo function > current_tracer
>  echo "enable profiler"
>  echo 1 > function_profile_enabled
> diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc 
> b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc
> index d6f2f49..bdbd385 100644
> --- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc
> +++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc
> @@ -10,6 +10,7 @@ echo _do_fork > set_ftrace_filter
>  echo 0 > events/enable
>  echo > kprobe_events
>  echo 'p:testprobe _do_fork' > kprobe_events
> +enable_tracing
>  
>  # kprobe on / ftrace off
>  echo 1 > events/kprobes/testprobe/enable

Re: [PATCH 2/5] selftests: ftrace: Fix test cases to enable tracing

2016-10-24 Thread Steven Rostedt 
On Wed, 19 Oct 2016 13:53:46 +0900
Masami Hiramatsu  wrote:

> Fix some test cases to enable tracing before starting
> trace test. This can avoid false-positive failure when
> previous testcase fails while disabling tracing.

I wonder if this would be better to do the enabling from the ftracetest
script instead. Then the tests would need to worry about it.

-- Steve


> 
> Signed-off-by: Masami Hiramatsu 
> ---
>  .../selftests/ftrace/test.d/event/event-enable.tc  |1 +
>  .../selftests/ftrace/test.d/event/event-pid.tc |1 +
>  .../ftrace/test.d/event/subsystem-enable.tc|1 +
>  .../ftrace/test.d/event/toplevel-enable.tc |1 +
>  .../ftrace/test.d/ftrace/func_profiler.tc  |1 +
>  .../ftrace/test.d/kprobe/kprobe_ftrace.tc  |1 +
>  6 files changed, 6 insertions(+)
> 
> diff --git a/tools/testing/selftests/ftrace/test.d/event/event-enable.tc 
> b/tools/testing/selftests/ftrace/test.d/event/event-enable.tc
> index 87eb9d6..ee7ea0a 100644
> --- a/tools/testing/selftests/ftrace/test.d/event/event-enable.tc
> +++ b/tools/testing/selftests/ftrace/test.d/event/event-enable.tc
> @@ -23,6 +23,7 @@ fi
>  
>  reset_tracer
>  do_reset
> +enable_tracing
>  
>  echo 'sched:sched_switch' > set_event
>  
> diff --git a/tools/testing/selftests/ftrace/test.d/event/event-pid.tc 
> b/tools/testing/selftests/ftrace/test.d/event/event-pid.tc
> index d4ab27b..1477e5e 100644
> --- a/tools/testing/selftests/ftrace/test.d/event/event-pid.tc
> +++ b/tools/testing/selftests/ftrace/test.d/event/event-pid.tc
> @@ -30,6 +30,7 @@ fi
>  
>  reset_tracer
>  do_reset
> +enable_tracing
>  
>  echo 1 > events/sched/sched_switch/enable
>  
> diff --git a/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc 
> b/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc
> index ced27ef..f4a64f9 100644
> --- a/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc
> +++ b/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc
> @@ -23,6 +23,7 @@ fi
>  
>  reset_tracer
>  do_reset
> +enable_tracing
>  
>  echo 'sched:*' > set_event
>  
> diff --git a/tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc 
> b/tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc
> index 0bb5df3..037a82e 100644
> --- a/tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc
> +++ b/tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc
> @@ -23,6 +23,7 @@ fi
>  
>  reset_tracer
>  do_reset
> +enable_tracing
>  
>  echo '*:*' > set_event
>  
> diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func_profiler.tc 
> b/tools/testing/selftests/ftrace/test.d/ftrace/func_profiler.tc
> index 7808336..d10d6e0 100644
> --- a/tools/testing/selftests/ftrace/test.d/ftrace/func_profiler.tc
> +++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_profiler.tc
> @@ -36,6 +36,7 @@ fail() { # mesg
>  
>  echo "Testing function tracer with profiler:"
>  echo "enable function tracer"
> +enable_tracing
>  echo function > current_tracer
>  echo "enable profiler"
>  echo 1 > function_profile_enabled
> diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc 
> b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc
> index d6f2f49..bdbd385 100644
> --- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc
> +++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc
> @@ -10,6 +10,7 @@ echo _do_fork > set_ftrace_filter
>  echo 0 > events/enable
>  echo > kprobe_events
>  echo 'p:testprobe _do_fork' > kprobe_events
> +enable_tracing
>  
>  # kprobe on / ftrace off
>  echo 1 > events/kprobes/testprobe/enable

[PATCH 2/5] selftests: ftrace: Fix test cases to enable tracing

2016-10-18 Thread Masami Hiramatsu 
Fix some test cases to enable tracing before starting
trace test. This can avoid false-positive failure when
previous testcase fails while disabling tracing.

Signed-off-by: Masami Hiramatsu 
---
 .../selftests/ftrace/test.d/event/event-enable.tc  |1 +
 .../selftests/ftrace/test.d/event/event-pid.tc |1 +
 .../ftrace/test.d/event/subsystem-enable.tc|1 +
 .../ftrace/test.d/event/toplevel-enable.tc |1 +
 .../ftrace/test.d/ftrace/func_profiler.tc  |1 +
 .../ftrace/test.d/kprobe/kprobe_ftrace.tc  |1 +
 6 files changed, 6 insertions(+)

diff --git a/tools/testing/selftests/ftrace/test.d/event/event-enable.tc 
b/tools/testing/selftests/ftrace/test.d/event/event-enable.tc
index 87eb9d6..ee7ea0a 100644
--- a/tools/testing/selftests/ftrace/test.d/event/event-enable.tc
+++ b/tools/testing/selftests/ftrace/test.d/event/event-enable.tc
@@ -23,6 +23,7 @@ fi
 
 reset_tracer
 do_reset
+enable_tracing
 
 echo 'sched:sched_switch' > set_event
 
diff --git a/tools/testing/selftests/ftrace/test.d/event/event-pid.tc 
b/tools/testing/selftests/ftrace/test.d/event/event-pid.tc
index d4ab27b..1477e5e 100644
--- a/tools/testing/selftests/ftrace/test.d/event/event-pid.tc
+++ b/tools/testing/selftests/ftrace/test.d/event/event-pid.tc
@@ -30,6 +30,7 @@ fi
 
 reset_tracer
 do_reset
+enable_tracing
 
 echo 1 > events/sched/sched_switch/enable
 
diff --git a/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc 
b/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc
index ced27ef..f4a64f9 100644
--- a/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc
+++ b/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc
@@ -23,6 +23,7 @@ fi
 
 reset_tracer
 do_reset
+enable_tracing
 
 echo 'sched:*' > set_event
 
diff --git a/tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc 
b/tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc
index 0bb5df3..037a82e 100644
--- a/tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc
+++ b/tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc
@@ -23,6 +23,7 @@ fi
 
 reset_tracer
 do_reset
+enable_tracing
 
 echo '*:*' > set_event
 
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func_profiler.tc 
b/tools/testing/selftests/ftrace/test.d/ftrace/func_profiler.tc
index 7808336..d10d6e0 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/func_profiler.tc
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_profiler.tc
@@ -36,6 +36,7 @@ fail() { # mesg
 
 echo "Testing function tracer with profiler:"
 echo "enable function tracer"
+enable_tracing
 echo function > current_tracer
 echo "enable profiler"
 echo 1 > function_profile_enabled
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc 
b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc
index d6f2f49..bdbd385 100644
--- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc
@@ -10,6 +10,7 @@ echo _do_fork > set_ftrace_filter
 echo 0 > events/enable
 echo > kprobe_events
 echo 'p:testprobe _do_fork' > kprobe_events
+enable_tracing
 
 # kprobe on / ftrace off
 echo 1 > events/kprobes/testprobe/enable

[PATCH 2/5] selftests: ftrace: Fix test cases to enable tracing

2016-10-18 Thread Masami Hiramatsu 
Fix some test cases to enable tracing before starting
trace test. This can avoid false-positive failure when
previous testcase fails while disabling tracing.

Signed-off-by: Masami Hiramatsu 
---
 .../selftests/ftrace/test.d/event/event-enable.tc  |1 +
 .../selftests/ftrace/test.d/event/event-pid.tc |1 +
 .../ftrace/test.d/event/subsystem-enable.tc|1 +
 .../ftrace/test.d/event/toplevel-enable.tc |1 +
 .../ftrace/test.d/ftrace/func_profiler.tc  |1 +
 .../ftrace/test.d/kprobe/kprobe_ftrace.tc  |1 +
 6 files changed, 6 insertions(+)

diff --git a/tools/testing/selftests/ftrace/test.d/event/event-enable.tc 
b/tools/testing/selftests/ftrace/test.d/event/event-enable.tc
index 87eb9d6..ee7ea0a 100644
--- a/tools/testing/selftests/ftrace/test.d/event/event-enable.tc
+++ b/tools/testing/selftests/ftrace/test.d/event/event-enable.tc
@@ -23,6 +23,7 @@ fi
 
 reset_tracer
 do_reset
+enable_tracing
 
 echo 'sched:sched_switch' > set_event
 
diff --git a/tools/testing/selftests/ftrace/test.d/event/event-pid.tc 
b/tools/testing/selftests/ftrace/test.d/event/event-pid.tc
index d4ab27b..1477e5e 100644
--- a/tools/testing/selftests/ftrace/test.d/event/event-pid.tc
+++ b/tools/testing/selftests/ftrace/test.d/event/event-pid.tc
@@ -30,6 +30,7 @@ fi
 
 reset_tracer
 do_reset
+enable_tracing
 
 echo 1 > events/sched/sched_switch/enable
 
diff --git a/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc 
b/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc
index ced27ef..f4a64f9 100644
--- a/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc
+++ b/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc
@@ -23,6 +23,7 @@ fi
 
 reset_tracer
 do_reset
+enable_tracing
 
 echo 'sched:*' > set_event
 
diff --git a/tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc 
b/tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc
index 0bb5df3..037a82e 100644
--- a/tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc
+++ b/tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc
@@ -23,6 +23,7 @@ fi
 
 reset_tracer
 do_reset
+enable_tracing
 
 echo '*:*' > set_event
 
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func_profiler.tc 
b/tools/testing/selftests/ftrace/test.d/ftrace/func_profiler.tc
index 7808336..d10d6e0 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/func_profiler.tc
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_profiler.tc
@@ -36,6 +36,7 @@ fail() { # mesg
 
 echo "Testing function tracer with profiler:"
 echo "enable function tracer"
+enable_tracing
 echo function > current_tracer
 echo "enable profiler"
 echo 1 > function_profile_enabled
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc 
b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc
index d6f2f49..bdbd385 100644
--- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc
@@ -10,6 +10,7 @@ echo _do_fork > set_ftrace_filter
 echo 0 > events/enable
 echo > kprobe_events
 echo 'p:testprobe _do_fork' > kprobe_events
+enable_tracing
 
 # kprobe on / ftrace off
 echo 1 > events/kprobes/testprobe/enable