linux-kernel - Re: Build regressions/improvements in v4.17-rc1

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Message-ID: <CAMuHMdVKszYm5jH+o8iLdBdPTcsnpUr3rs4Z3kPtKXXH4fs8fw@mail.gmail.com>
Date:   Mon, 16 Apr 2018 15:15:56 +0200
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Cc:     "the arch/x86 maintainers" <x86@...nel.org>,
        "James E.J. Bottomley" <jejb@...isc-linux.org>,
        Helge Deller <deller@....de>
Subject: Re: Build regressions/improvements in v4.17-rc1

On Mon, Apr 16, 2018 at 3:09 PM, Geert Uytterhoeven
<geert@...ux-m68k.org> wrote:
> Below is the list of build error/warning regressions/improvements in
> v4.17-rc1[1] compared to v4.16[2].
>
> Summarized:
>   - build errors: +2/-10
>   - build warnings: +1407/-1867
>
> Note that there may be false regressions, as some logs are incomplete.
> Still, they're build errors/warnings.
>
> Happy fixing! ;-)
>
> Thanks to the linux-next team for providing the build service.
>
> [1] http://kisskb.ellerman.id.au/kisskb/head/60cc43fc888428bb2f18f08997432d426a243338/ (244 out of 246 configs)
> [2] http://kisskb.ellerman.id.au/kisskb/head/0adb32858b0bddf4ada5f364a84ed60b196dbcda/ (all 246 configs)
>
>
> *** ERRORS ***
>
> 2 error regressions:
>   + /kisskb/src/include/linux/thread_info.h: error: call to '__bad_copy_from' declared with attribute error: copy source size is too small:  => 138:19

i386-allmodconfig

>   + error: No rule to make target arch/parisc/kernel/binfmt_elf32.o:  => N/A

parisc64/a500_defconfig (patch available)

> *** WARNINGS ***
>
> [Deleted 799 lines about "warning: ... [-Wpointer-sign]" on parisc-allmodconfig]
> [Deleted 1480 lines about "warning: -ffunction-sections disabled; it makes profiling impossible [enabled by default]" on parisc-allmodconfig]

BTW, are there any plans to fix/silence these warrnings?
Or should I look into automating their removal from the logs/report
(optimistic me keeps on postponing that task :-)?

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