Re: [PATCH 21/21] fbdev: Make registered_fb[] private to fbmem.c

Daniel Vetter
2022-02-08T14:04:57Z

On Fri, Feb 04, 2022 at 09:30:56AM +0100, Geert Uytterhoeven wrote:
> Hi Daniel,
>
> Thanks for your patch!
>
> On Tue, Feb 1, 2022 at 9:50 PM Daniel Vetter <daniel.vetter@ffwll.ch> wrote:
> > Well except when the olpc dcon fbdev driver is enabled, that thing
> > digs around in there in rather unfixable ways.
>
> Can't the actual frame buffer driver (which one?) used on olpc export
> a pointer to its fb_info?

Yeah that might be the right thing to do, I'll add that as a stagin TODO
in the next iteration.

>
> > --- a/drivers/video/fbdev/core/fbmem.c
> > +++ b/drivers/video/fbdev/core/fbmem.c
> > @@ -48,10 +48,14 @@
> > static DEFINE_MUTEX(registration_lock);
> >
> > struct fb_info *registered_fb[FB_MAX] __read_mostly;
> > -EXPORT_SYMBOL(registered_fb);
> > -
> > int num_registered_fb __read_mostly;
> > +#if IS_ENABLED(CONFIG_OLPC_DCON)
>
> CONFIG_FB_OLPC_DCON (everywhere), cfr. the build failure reported
> by the robot.

Yeah realized that too and fixed it locally.

Cheers, Daniel

>
> Gr{oetje,eeting}s,
>
> Geert
>
> --
> Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
>
> In personal conversations with technical people, I call myself a hacker. But
> when I'm talking to journalists I just say "programmer" or something like that.
> -- Linus Torvalds

--
Daniel Vetter
Software Engineer, Intel Corporation