[PATCH] fbdev: make offb driver tristate

[Nathan Chancellor]

On Sat, Dec 10, 2022 at 05:35:06PM +0100, Helge Deller wrote:
> On 11/26/22 14:40, Thomas Zimmermann wrote:
> > Am 26.11.22 um 01:04 schrieb Randy Dunlap:
> > > Make the offb (Open Firmware frame buffer) driver tristate,
> > > i.e., so that it can be built as a loadable module.
> > > 
> > > However, it still depends on the setting of DRM_OFDRM
> > > so that both of these drivers cannot be builtin at the same time
> > > nor can one be builtin and the other one a loadable module.
> > > 
> > > Build-tested successfully with all combination of DRM_OFDRM and FB_OF.
> > > 
> > > This fixes a build issue that Michal reported when FB_OF=y and
> > > DRM_OFDRM=m:
> > > 
> > > powerpc64-linux-ld: drivers/video/fbdev/offb.o:(.data.rel.ro+0x58): undefined reference to `cfb_fillrect'
> > > powerpc64-linux-ld: drivers/video/fbdev/offb.o:(.data.rel.ro+0x60): undefined reference to `cfb_copyarea'
> > > powerpc64-linux-ld: drivers/video/fbdev/offb.o:(.data.rel.ro+0x68): undefined reference to `cfb_imageblit'
> > > 
> > > Signed-off-by: Randy Dunlap <rdunlap at infradead.org>
> > > Suggested-by: Arnd Bergmann <arnd at arndb.de>
> > > Cc: Masahiro Yamada <masahiroy at kernel.org>
> > > Cc: Thomas Zimmermann <tzimmermann at suse.de>
> > > Cc: Michal Suchánek <msuchanek at suse.de>
> > > Cc: linuxppc-dev at lists.ozlabs.org
> > > Cc: Daniel Vetter <daniel at ffwll.ch>
> > > Cc: Helge Deller <deller at gmx.de>
> > > Cc: linux-fbdev at vger.kernel.org
> > > Cc: dri-devel at lists.freedesktop.org
> > 
> > Acked-by: Thomas Zimmermann <tzimmermann at suse.de>
> 
> applied.

Is this going to make it to Linus soon? We are now seeing this error in
our CI, which has the configuration describe in this commit.

https://github.com/ClangBuiltLinux/continuous-integration2/actions/runs/3785609002/jobs/6437398666#step:5:149

https://storage.tuxsuite.com/public/clangbuiltlinux/continuous-integration2/builds/2JUMSmjAoSJoKfl6PPjfU66JGit/build.log

Cheers,
Nathan

> > > ---
> > >   drivers/video/fbdev/Kconfig |    4 ++--
> > >   1 file changed, 2 insertions(+), 2 deletions(-)
> > > 
> > > diff -- a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig
> > > --- a/drivers/video/fbdev/Kconfig
> > > +++ b/drivers/video/fbdev/Kconfig
> > > @@ -456,8 +456,8 @@ config FB_ATARI
> > >         chipset found in Ataris.
> > >   config FB_OF
> > > -    bool "Open Firmware frame buffer device support"
> > > -    depends on (FB = y) && PPC && (!PPC_PSERIES || PCI)
> > > +    tristate "Open Firmware frame buffer device support"
> > > +    depends on FB && PPC && (!PPC_PSERIES || PCI)
> > >       depends on !DRM_OFDRM
> > >       select APERTURE_HELPERS
> > >       select FB_CFB_FILLRECT
> > 
> 
>