linux-kernel - Re: [PATCH 4/4] selftests: ftrace: Output only to console with "--logdir -"

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Message-ID: <20170705122917.03346f2d@gandalf.local.home>
Date:   Wed, 5 Jul 2017 12:29:17 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Masami Hiramatsu <mhiramat@...nel.org>
Cc:     linux-kselftest@...r.kernel.org, shuah@...nel.org,
        Ingo Molnar <mingo@...hat.com>, linux-kernel@...r.kernel.org,
        naresh.kamboju@...aro.org
Subject: Re: [PATCH 4/4] selftests: ftrace: Output only to console with
 "--logdir -"

On Wed, 5 Jul 2017 12:25:06 -0400
Steven Rostedt <rostedt@...dmis.org> wrote:

 
> > @@ -255,12 +262,18 @@ __run_test() { # testfile
> >  # Run one test case
> >  run_test() { # testfile
> >    local testname=`basename $1`
> > -  local testlog=`mktemp $LOG_DIR/${testname}-log.XXXXXX`
> > +  if [ "$LOG_FILE" ] ; then  
> 
> Shouldn't this be
> 
> 	if [ ! -z "$LOG_FILE" ]; then
> 
> ?
> 

OK, I just checked it out. I guess "" is considered zero and
"<anything>" is considered 1.

Hmm, do we do this in other places too. Just makes me unconfortable.

-- Steve