linux-kernel - Re: [PATCH] perf test: Disable breakpoint signal tests for powerpc

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Date:   Thu, 1 Jun 2017 15:10:07 +0200
From:   Jiri Olsa <jolsa@...hat.com>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:     Jiri Olsa <jolsa@...nel.org>, lkml <linux-kernel@...r.kernel.org>,
        Ingo Molnar <mingo@...nel.org>,
        Peter Zijlstra <a.p.zijlstra@...llo.nl>,
        Namhyung Kim <namhyung@...nel.org>,
        David Ahern <dsahern@...il.com>
Subject: Re: [PATCH] perf test: Disable breakpoint signal tests for powerpc

On Thu, Jun 01, 2017 at 10:04:58AM -0300, Arnaldo Carvalho de Melo wrote:
> Em Tue, May 16, 2017 at 07:49:42PM +0200, Jiri Olsa escreveu:
> > Following tests are constantly failing on powerpc:
> > 
> >   # perf test break
> >   18: Breakpoint overflow signal handler         : FAILED!
> >   19: Breakpoint overflow sampling               : FAILED!
> > 
> > The powerpc so far does not have support to even create
> > instruction breakpoint using the perf event interface,
> > so those tests fail early in the config phase.
> > 
> > I added 'ison' callback to test struct to be able to
> > disable specific test. It seems better than putting
> > ifdefs directly to the test array.
> > 
> > Link: http://lkml.kernel.org/n/tip-erwshbq6f7b7hdtu65z5a25y@git.kernel.org
> > Signed-off-by: Jiri Olsa <jolsa@...nel.org>
> > ---
> >  tools/perf/tests/bp_signal.c    | 14 ++++++++++++++
> >  tools/perf/tests/builtin-test.c |  7 +++++++
> >  tools/perf/tests/tests.h        |  3 +++
> >  3 files changed, 24 insertions(+)
> > 
> > diff --git a/tools/perf/tests/bp_signal.c b/tools/perf/tests/bp_signal.c
> > index e7664fe3bd33..0467c3b6d849 100644
> > --- a/tools/perf/tests/bp_signal.c
> > +++ b/tools/perf/tests/bp_signal.c
> > @@ -288,3 +288,17 @@ int test__bp_signal(int subtest __maybe_unused)
> >  	return count1 == 1 && overflows == 3 && count2 == 3 && overflows_2 == 3 && count3 == 2 ?
> >  		TEST_OK : TEST_FAIL;
> >  }
> > +
> > +bool test__bp_signal_is_on(void)
> 
> Can you please rename this "_is_on()" thing to "_supported()"?

ok

jirka