linux-kernel - Re: [GIT PULL] Kbuild updates for v4.15 (2nd round)

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Date:   Mon, 27 Nov 2017 13:26:19 +0100
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Masahiro Yamada <yamada.masahiro@...ionext.com>
Cc:     Chris Fries <cfries@...gle.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>
Subject: Re: [GIT PULL] Kbuild updates for v4.15 (2nd round)

Hi Yamada-san,

On Mon, Nov 27, 2017 at 1:17 PM, Masahiro Yamada
<yamada.masahiro@...ionext.com> wrote:
> 2017-11-27 17:30 GMT+09:00 Geert Uytterhoeven <geert@...ux-m68k.org>:
>> On Fri, Nov 24, 2017 at 5:58 PM, Masahiro Yamada
>> <yamada.masahiro@...ionext.com> wrote:
>>> Please pull a little more Kbuild updates for v4.15.
>>> The reason for lateness is I hesitated to put some patches
>>> in the last week pull requests due to big conflicts.
>>> Also, I applied some fixes and trivial enough ones.
>>> I hope you will pull this.
>>>
>>>
>>>
>>> The following changes since commit 2ce079f04d5914dae14fdc8618f804cc0d2a1b8f:
>>>
>>>   Merge tag 'kbuild-misc-v4.15' of
>>> git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
>>> (2017-11-17 17:51:33 -0800)
>>>
>>> are available in the git repository at:
>>>
>>>   git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild.git
>>> tags/kbuild-v4.15-2
>>>
>>> for you to fetch changes up to 10aaa3b7e95b9649fd658ac7e9075093316425d8:
>>>
>>>   kbuild: drop $(extra-y) from real-objs-y (2017-11-23 23:29:26 +0900)
>>>
>>> ----------------------------------------------------------------
>>> Kbuild updates for v4.15 (2nd)
>>
>>> Chris Fries (1):
>>>       kbuild: Set KBUILD_CFLAGS before incl. arch Makefile
>>
>> This broke cross-compilation using a cross-compiler that supports less
>> compiler options than the host compiler. E.g.:
>>
>>     cc1: error: unrecognized command line option "-Wno-unused-but-set-variable"
>>
>> Reverting commit ae6b289a37890909 ("kbuild: Set KBUILD_CFLAGS before incl.
>> arch Makefile", which was in linux-next since next-20171124) fixes that.
>>
>> BTW, this gets broken regularly, cfr. e.g. commits a1c48bb160f8368e ("Makefile:
>> Fix unrecognized cross-compiler command line options") and bef5b54bd7bf8117
>> ("Fix MIPS cross-compile problem").
>>
>
> Oh, thanks for the report.
>
> I do not want to revert it, but how about this?
>
> https://patchwork.kernel.org/patch/10076723/

That patch fixes the issue for me, thanks a lot!

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