linux-kernel - Re: [PATCH] MAINTAINERS: Add entries for CoreSight and Arm SPE

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Message-ID: <CANLsYkzn2yuhVzZD0p-C156qi28ukHQDa83F8pezESsptG4d1Q@mail.gmail.com>
Date:   Wed, 19 Aug 2020 13:26:26 -0600
From:   Mathieu Poirier <mathieu.poirier@...aro.org>
To:     Will Deacon <will@...nel.org>
Cc:     John Garry <john.garry@...wei.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Leo Yan <leo.yan@...aro.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        Jiri Olsa <jolsa@...hat.com>,
        Mark Rutland <mark.rutland@....com>
Subject: Re: [PATCH] MAINTAINERS: Add entries for CoreSight and Arm SPE

On Wed, 19 Aug 2020 at 11:30, Will Deacon <will@...nel.org> wrote:
>
> On Wed, Aug 19, 2020 at 11:01:38AM -0600, Mathieu Poirier wrote:
> > On Tue, 18 Aug 2020 at 11:56, John Garry <john.garry@...wei.com> wrote:
> > > On 17/08/2020 20:31, Mathieu Poirier wrote:
> > > > diff --git a/MAINTAINERS b/MAINTAINERS
> > > > index 4e2698cc7e23..f9bb76baeec9 100644
> > > > --- a/MAINTAINERS
> > > > +++ b/MAINTAINERS
> > > > @@ -13427,8 +13427,18 @@ F:   tools/perf/
> > > >   PERFORMANCE EVENTS SUBSYSTEM ARM64 PMU EVENTS
> > > >   R:  John Garry <john.garry@...wei.com>
> > > >   R:  Will Deacon <will@...nel.org>
> > > > +R:   Mathieu Poirier <mathieu.poirier@...aro.org>
> > > > +R:   Leo Yan <leo.yan@...aro.org>
> > > >   L:  linux-arm-kernel@...ts.infradead.org (moderated for non-subscribers)
> > > >   S:  Supported
> > > > +F:   tools/build/feature/test-libopencsd.c
> > > > +F:   tools/perf/arch/arm/util/auxtrace.c
> > > > +F:   tools/perf/arch/arm/util/cs-etm.*
> > > > +F:   tools/perf/arch/arm/util/pmu.c
> > > > +F:   tools/perf/arch/arm64/util/arm-spe.c
> > > > +F:   tools/perf/util/arm-spe.h
> > > > +F:   tools/perf/util/cs-etm-decoder/*
> > > > +F:   tools/perf/util/cs-etm.*
> > >
> > > But from the previous discussion, I thought that we wanted an entry to
> > > cover all tools/perf/arch/arm64/ and other related folders. Or was it
> > > just put all special interest parts (like SPE support) under one entry
> > > and leave the other arm/arm64 parts to be caught by "PERFORMANCE EVENTS
> > > SUBSYSTEM" entry?
> >
> > I do not have the time to maintain anything outside of coresight -
> > listing individual files as I did removes any ambiguity on that front.
> > I'm happy to add tools/perf/arch/arm and tools/perf/arch/arm64/ if you
> > agree to maintain them.  In that case you will have to be more
> > specific about the "other related folders" you are referring to above.
>
> None of us have time for this, hence why I think putting us all in one entry
> with all of the files listed there makes the most sense; then people do
> whatever they can and try to help each other out based on how much time they
> have. I think that's much better than fine-grained maintainership where a
> given file has a single point of failure.

Thanks for the clarification - just wanted to make sure I don't sign
you guys up for something you didn't agree to.

>
> So I think it should include:
>
>   tools/perf/arch/arm64/
>   tools/pmu-events/arch/arm64/
>
> along with the SPE and Coresight files.
>
> Arnaldo would still handle the patches, so this is really about giving us a
> chance to review incoming patches without having to fish them out from the
> lists.
>
> Will