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[0/3] fbdev: stop using compat_alloc_user_space

Message ID 20200918100812.1447443-1-arnd@arndb.de
Headers show
Series fbdev: stop using compat_alloc_user_space | expand

Message

Arnd Bergmann Sept. 18, 2020, 10:08 a.m. UTC
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

 drivers/video/fbdev/core/fbmem.c |  44 +++++------
 drivers/video/fbdev/sbuslib.c    | 124 ++++++++++++++++++-------------
 2 files changed, 90 insertions(+), 78 deletions(-)

-- 
2.27.0

Comments

Sam Ravnborg Sept. 25, 2020, 2:39 p.m. UTC | #1
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@ravnborg.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