linux-kernel - Re: [PATCH 0/3] fbdev: stop using compat_alloc_user

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Date:   Fri, 25 Sep 2020 16:39:37 +0200
From:   Sam Ravnborg <sam@...nborg.org>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     Linux Fbdev development list <linux-fbdev@...r.kernel.org>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        "David S . Miller" <davem@...emloft.net>,
        Christoph Hellwig <hch@....de>
Subject: Re: [PATCH 0/3] fbdev: stop using compat_alloc_user_space

On Fri, Sep 25, 2020 at 01:31:51PM +0200, Arnd Bergmann wrote:
> On Thu, Sep 24, 2020 at 10:54 PM Sam Ravnborg <sam@...nborg.org> wrote:
> >
> > Hi Daniel/Arnd.
> >
> > On Fri, Sep 18, 2020 at 02:48:08PM +0200, Daniel Vetter wrote:
> > > On Fri, Sep 18, 2020 at 12:08:10PM +0200, Arnd Bergmann wrote:
> > > > The fbdev code uses compat_alloc_user_space in a few of its
> > > > compat_ioctl handlers, which tends to be a bit more complicated
> > > > and error-prone than calling the underlying handlers directly,
> > > > so I would like to remove it completely.
> > > >
> > > > This modifies two such functions in fbdev, and removes another
> > > > one that is completely unused.
> > > >
> > > >     Arnd
> > > >
> > > > Arnd Bergmann (3):
> > > >   fbdev: simplify fb_getput_cmap()
> > > >   fbdev: sbuslib: remove unused FBIOSCURSOR32 helper
> > > >   fbdev: sbuslib: remove compat_alloc_user_space usage
> > >
> > > Looks all good, but we're also kinda looking for a new volunteer for
> > > handling fbdev patches ... drm-misc commit rights, still not interested?
> >
> > Hi Daniel - I read the above as an a-b. And Arnd did not take the bait
> > it seems.
> 
> Ah right, I meant to reply but then forgot about it.
> 
> I don't really want commit access, thanks for the offer.
> 
> > Hi Arnd. checkpatch complained about some whitespace, which I fixed
> > while applying.
> > Will push to drm-misc-next tomorrow unless I hear anything else.
> 
> Great, thanks!
Pushed now.

	Sam