linux-kernel - Re: Build regressions/improvements in v5.12-rc1

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Date:   Tue, 2 Mar 2021 14:30:33 -0500
From:   Alex Deucher <alexdeucher@...il.com>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Alex Deucher <alexander.deucher@....com>,
        linuxppc-dev <linuxppc-dev@...ts.ozlabs.org>,
        Christian König <christian.koenig@....com>,
        amd-gfx list <amd-gfx@...ts.freedesktop.org>
Subject: Re: Build regressions/improvements in v5.12-rc1

On Mon, Mar 1, 2021 at 9:21 AM Geert Uytterhoeven <geert@...ux-m68k.org> wrote:
>
> On Mon, 1 Mar 2021, Geert Uytterhoeven wrote:
> > Below is the list of build error/warning regressions/improvements in
> > v5.12-rc1[1] compared to v5.11[2].
> >
> > Summarized:
> >  - build errors: +2/-0
>
> > [1] http://kisskb.ellerman.id.au/kisskb/branch/linus/head/fe07bfda2fb9cdef8a4d4008a409bb02f35f1bd8/ (all 192 configs)
> > [2] http://kisskb.ellerman.id.au/kisskb/branch/linus/head/f40ddce88593482919761f74910f42f4b84c004b/ (all 192 configs)
> >
> >
> > *** ERRORS ***
> >
> > 2 error regressions:
> >  + /kisskb/src/drivers/gpu/drm/amd/amdgpu/../display/dc/calcs/dcn_calcs.c: error: implicit declaration of function 'disable_kernel_vsx' [-Werror=implicit-function-declaration]:  => 674:2
> >  + /kisskb/src/drivers/gpu/drm/amd/amdgpu/../display/dc/calcs/dcn_calcs.c: error: implicit declaration of function 'enable_kernel_vsx' [-Werror=implicit-function-declaration]:  => 638:2
>
> powerpc-gcc4.9/ppc64_book3e_allmodconfig
>
> This was fixed in v5.11-rc1, but reappeared in v5.12-rc1?

Do you know what fixed in for 5.11?  I guess for PPC64 we depend on CONFIG_VSX?

Alex

>
> Gr{oetje,eeting}s,
>
>                                                 Geert
>
> --
> Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-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
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