Re: [RFC][PATCH 1/5 v2] dma-buf: Add dma-buf heaps framework

From: Sumit Semwal <sumit.semwal@linaro.org>
To: Laura Abbott <labbott@redhat.com>
Cc: Alistair Strachan <astrachan@google.com>,
	Greg KH <gregkh@linuxfoundation.org>,
	Chenbo Feng <fengc@google.com>,
	lkml <linux-kernel@vger.kernel.org>,
	Liam Mark <lmark@codeaurora.org>, "Andrew F. Davis" <afd@ti.com>,
	dri-devel <dri-devel@lists.freedesktop.org>
Subject: Re: [RFC][PATCH 1/5 v2] dma-buf: Add dma-buf heaps framework
Date: Mon, 18 Mar 2019 10:08:26 +0530	[thread overview]
Message-ID: <CAO_48GHcepCgHAfUe4jV4Liu-P=TUkHH9-hDhyqYZTTxL1umdQ@mail.gmail.com> (raw)
In-Reply-To: <86b9ef2e-99f7-ad8c-dbfc-418c1538a0a8@redhat.com>

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On Sat, 16 Mar 2019 at 04:15, Laura Abbott <labbott@redhat.com> wrote:

> On 3/15/19 2:29 PM, John Stultz wrote:
> > On Fri, Mar 15, 2019 at 1:18 PM Laura Abbott <labbott@redhat.com> wrote:
> >>
> >> On 3/5/19 12:54 PM, John Stultz wrote:
> >>> +DMA-BUF HEAPS FRAMEWORK
> >>> +M:   Laura Abbott<labbott@redhat.com>
> >>> +R:   Liam Mark<lmark@codeaurora.org>
> >>> +R:   Brian Starkey<Brian.Starkey@arm.com>
> >>> +R:   "Andrew F. Davis"<afd@ti.com>
> >>> +R:   John Stultz<john.stultz@linaro.org>
> >>> +S:   Maintained
> >>> +L:   linux-media@vger.kernel.org
> >>> +L:   dri-devel@lists.freedesktop.org
> >>> +L:   linaro-mm-sig@lists.linaro.org  (moderated for non-subscribers)
> >>> +F:   include/uapi/linux/dma-heap.h
> >>> +F:   include/linux/dma-heap.h
> >>> +F:   drivers/dma-buf/dma-heap.c
> >>> +F:   drivers/dma-buf/heaps/*
> >>> +T:   git git://anongit.freedesktop.org/drm/drm-misc
> >>
> >> So I talked about this with Sumit privately but I think
> >> it might make sense to have me step down as maintainer when
> >> this goes out of staging. I mostly worked on Ion at my
> >> previous position and anything I do now is mostly a side
> >> project. I still want to see it succeed which is why I
> >> took on the maintainer role but I don't want to become blocking
> >> for people who have a stronger vision about where this needs
> >> to go (see also, I'm not working with this on a daily basis).
> >>
> >> If you just want someone to help review or take patches
> >> to be pulled, I'm happy to do so but I'd hate to become
> >> the bottleneck on getting things done for people who
> >> are attempting to do real work.
> >
> > I worry this will make everyone to touch the side of their nose and
> > yell "NOT IT!" :)
> >
> > First of all, thank you so much for your efforts maintaining ION along
> > with your attempts to drag out requirements from interested parties
> > and the numerous attempts to get collaborative discussion going at
> > countless conferences! Your persistence and continual nudging in the
> > face of apathetic private users of the code probably cannot be
> > appreciated enough!
>
I totally second John here - the persistence has been inspiring to me
personally as well :)

> >
> > Your past practical experience with ION and active work with the
> > upstream community made you a stand out pick for this, but I
> > understand not wanting to be eternally stuck with a maintainership if
> > your not active in the area.  I'm happy to volunteer as a neutral
> > party, but I worry my limited experience with some of the more
> > complicated usage would make my opinions less informed then they
> > probably need to be.  Further, as a neutral party, Sumit would
> > probably be a better pick since he's already maintaining the dmabuf
> > core.
> >
>
> Honestly if you're doing the work to re-write everything, I
> think you're more than qualified to be the maintainer. I
> would also support Sumit as well.
> + 1
> > So I'd nominate Andrew, Liam or Benjamin (or all three?) as they all
> > have more practical experience enabling past ION heaps on real devices
> > and have demonstrated active interest in working in the community.
> >
>
> I do think this would benefit both from multiple maintainers and
> from maintainers who are actively using the framework. Like I
> said, I can still be a maintainer but I think having some comaintainers
> would be very helpful (and I'd support any of the names you've
> suggested)
>

If it's required, I am happy to co-maintain - we could even follow the
drm-misc model of multiple co-maintainers. I will support any or all of the
names above as well :)

>
> > So, in other words... NOT IT! :)
>
> I think you have to shout "Noes goes" first. :)
>
> > -john
> >
>
> Thanks,
> Laura
>
> P.S. For the benefit of anyone who's confused,
> https://en.wikipedia.org/wiki/Nose_goes
>

Best,
Sumit.

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