Re: Build regressions/improvements in v5.6-rc1

[Geert Uytterhoeven]

On Mon, Feb 10, 2020 at 2:55 PM Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> wrote:
> Below is the list of build error/warning regressions/improvements in
> v5.6-rc1[1] compared to v5.5[2].

> [1] http://kisskb.ellerman.id.au/kisskb/branch/linus/head/bb6d3fb354c5ee8d6bde2d576eb7220ea09862b9/ (all 324 configs)
> [2] http://kisskb.ellerman.id.au/kisskb/branch/linus/head/d5226fa6dbae0569ee43ecfc08bdcd6770fc4755/ (232 out of 324 configs)

> 6 error regressions:
>   + /kisskb/src/drivers/gpu/drm/amd/amdgpu/../display/dc/calcs/dcn_calcs.c: error: implicit declaration of function 'cpu_has_feature' [-Werror=implicit-function-declaration]:  => 626:2
>   + /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]:  => 662:2
>   + /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]:  => 626:2

powerpc-gcc4.6/ppc64_book3e_allmodconfig (but not
powerpc-gcc8/ppc64_book3e_allmodconfig? compiler too old?)

>   + /kisskb/src/drivers/gpu/drm/drm_edid.c: error: call to '__compiletime_assert_3282' declared with attribute error: BUILD_BUG_ON failed: cea_mode_for_vic(8)->vtotal != 262 || cea_mode_for_vic(9)->vtotal != 262 || cea_mode_for_vic(12)->vtotal != 262 || cea_mode_for_vic(13)->vtotal != 262 || cea_mode_for_vic(23)->vtotal != 312 || cea_mode_for_vic(24)->vtotal != 312 || cea_mode_for_vic(27)->vtotal != 312 || cea_mode_for_vic(28)->vtotal != 312:  => 3275:2

All over the place (fix available)

>   + error: "__udivdi3" [drivers/infiniband/hw/mlx5/mlx5_ib.ko] undefined!:  => N/A
>   + error: "__umoddi3" [drivers/pci/controller/pcie-brcmstb.ko] undefined!:  => N/A

mips-allmodconfig

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

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