linux-kernel - Re: [PATCH] MAINTAINERS: Add Helge as fbdev maintainer

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Message-ID: <Eq7vej5ZXGABhmCc7fCbSiaC0FruYkhMp8Bc3WsRENghKb_BOZ2LpVLsz8TkBGlrXD18jqkjAbBPwQt2n1yA7hQcK9u5Ep37fOC4UasJV_U=@emersion.fr>
Date:   Tue, 18 Jan 2022 12:11:15 +0000
From:   Simon Ser <contact@...rsion.fr>
To:     Daniel Vetter <daniel@...ll.ch>
Cc:     Geert Uytterhoeven <geert@...ux-m68k.org>,
        Linux Fbdev development list <linux-fbdev@...r.kernel.org>,
        Helge Deller <deller@....de>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Javier Martinez Canillas <javierm@...hat.com>,
        DRI Development <dri-devel@...ts.freedesktop.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [PATCH] MAINTAINERS: Add Helge as fbdev maintainer

On Tuesday, January 18th, 2022 at 12:41, Daniel Vetter <daniel@...ll.ch> wrote:

> On Tue, Jan 18, 2022 at 9:41 AM Geert Uytterhoeven <geert@...ux-m68k.org> wrote:
> >
> > Hi Jani,
> >
> > On Tue, Jan 18, 2022 at 9:38 AM Jani Nikula <jani.nikula@...ux.intel.com> wrote:
> > > On Mon, 17 Jan 2022, Helge Deller <deller@....de> wrote:
> > > > On 1/17/22 22:40, Jani Nikula wrote:
> > > >> On Mon, 17 Jan 2022, Thomas Zimmermann <tzimmermann@...e.de> wrote:
> > > >>> Seems like few people read linux-fbdev these days.
> > > >>
> > > >> How much traffic is there to linux-fbdev that is *not* Cc'd to dri-devel
> > > >> also?
> > > >
> > > > Doesn't seem like much traffic - which IMHO is OK for such a tree with
> > > > mostly just maintenance patches.
> > > >
> > > >> Do we still need a separate linux-fbdev mailing list at all?
> > > >
> > > > Yes. I want to have it seperate of dri-devel.
> > > > Actually I'd prefer to drop dri-devel from the list where patches
> > > > for fbdev are sent...
> > >
> > > Disagreed. If anything, this thread shows we can't have fbdev and drm in
> > > silos of their own.
> >
> > Unless DRM drops fbdev support. Isn't that the long-term plan anyway?
>
> No. There's way too much old stuff still using the fbdev interface to
> do that. We've even done things like standardize the vblank wait
> ioctl, because people need that.

Kind of related: I wonder, could we document somewhere that fbdev is a
deprecated uAPI? ie. new user-space shouldn't use it and should prefer DRM.
I don't see that mentioned anywhere, although it seems like it's the
consensus among all kernel developers I've talked to.