linux-kernel - Re: [PATCH] selftests/ftrace: Introduce exit_pass and exit

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Message-Id: <20171101132340.f700f0081419897798a4b1f3@kernel.org>
Date:   Wed, 1 Nov 2017 13:23:40 +0900
From:   Masami Hiramatsu <mhiramat@...nel.org>
To:     Steven Rostedt <rostedt@...dmis.org>
Cc:     linux-kselftest@...r.kernel.org, shuah@...nel.org,
        linux-kernel@...r.kernel.org,
        Tom Zanussi <tom.zanussi@...ux.intel.com>,
        Rajvi Jingar <rajvi.jingar@...el.com>
Subject: Re: [PATCH] selftests/ftrace: Introduce exit_pass and exit_fail

On Tue, 31 Oct 2017 17:44:32 -0400
Steven Rostedt <rostedt@...dmis.org> wrote:

> On Tue, 31 Oct 2017 23:51:42 +0900
> Masami Hiramatsu <mhiramat@...nel.org> wrote:
> 
> > diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/busy_check.tc b/tools/testing/selftests/ftrace/test.d/kprobe/busy_check.tc
> > index 74507db8bbc8..b8701fa0b8f2 100644
> > --- a/tools/testing/selftests/ftrace/test.d/kprobe/busy_check.tc
> > +++ b/tools/testing/selftests/ftrace/test.d/kprobe/busy_check.tc
> > @@ -8,7 +8,7 @@ echo > kprobe_events
> >  echo p:myevent _do_fork > kprobe_events
> >  test -d events/kprobes/myevent
> >  echo 1 > events/kprobes/myevent/enable
> > -echo > kprobe_events && exit 1 # this must fail
> > +echo > kprobe_events && exit_fail
> 
> Should we keep the comment about "this must fail", otherwise it may
> look like a mistake. Echoing in kprobe_events returns failure here?

Ah, good catch! I misread the comment is for "exit 1"...

Thank you,

> 
> -- Steve
> 
> 
> >  echo 0 > events/kprobes/myevent/enable
> >  echo > kprobe_events # this must succeed
> >  clear_trace


-- 
Masami Hiramatsu <mhiramat@...nel.org>