linux-kernel - Re: linux-next: Tree for Oct 23

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Message-ID: <CAMuHMdX1rhmvpWBHzvDYRNeYyotNp2ct1ysy4Jd0SjVUvGJd-Q@mail.gmail.com>
Date:   Wed, 23 Oct 2019 08:44:28 +0200
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Mark Salyzyn <salyzyn@...roid.com>
Cc:     Stephen Rothwell <sfr@...b.auug.org.au>,
        Linux Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Shaokun Zhang <zhangshaokun@...ilicon.com>,
        Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: linux-next: Tree for Oct 23

On Wed, Oct 23, 2019 at 8:17 AM Shaokun Zhang
<zhangshaokun@...ilicon.com> wrote:
> +Cc: Mark Salyzyn
>
> There is a compiler failure on arm64 platform, as follow:
> zhangshaokun@...ntu:~/linux-next$ make -j64
>   CALL    scripts/atomic/check-atomics.sh
>   CC      arch/arm64/kernel/asm-offsets.s
> In file included from ./include/linux/sysctl.h:30:0,
>                  from ./include/linux/umh.h:9,
>                  from ./include/linux/kmod.h:9,
>                  from ./include/linux/module.h:13,
>                  from ./include/linux/acpi.h:29,
>                  from ./include/acpi/apei.h:9,
>                  from ./include/acpi/ghes.h:5,
>                  from ./include/linux/arm_sdei.h:8,
>                  from arch/arm64/kernel/asm-offsets.c:10:
> ./include/uapi/linux/sysctl.h:561:29: error: expected ‘,’ or ‘}’ before ‘__attribute__’
>   NET_IPV6_TEMP_PREFERED_LFT __attribute__((deprecated)) = /* NOTYPO */
>                              ^
> scripts/Makefile.build:99: recipe for target 'arch/arm64/kernel/asm-offsets.s' failed
> make[1]: *** [arch/arm64/kernel/asm-offsets.s] Error 1
> Makefile:1108: recipe for target 'prepare0' failed
> make: *** [prepare0] Error 2
>
> It's the commit <79f0cf35dccb> ("treewide: cleanup: replace prefered with preferred").

After receiving a report from kisskb for failures for m68k, looking at
http://kisskb.ellerman.id.au/kisskb/head/f3c452cfc59c817950b150b51ec2b33409d7640b/
and doing some testing, it looks like this construct is supported by gcc-7
and gcc-8, but not by gcc-4.6.3 and gcc-5. Don't know about gcc-6.

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