Re: [PATCH v5 0/4] powerpc patches for new Kconfig language

From: Masahiro Yamada <yamada.masahiro@socionext.com>
To: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nicholas Piggin <npiggin@gmail.com>,
	Linux Kbuild mailing list <linux-kbuild@vger.kernel.org>,
	linuxppc-dev <linuxppc-dev@lists.ozlabs.org>
Subject: Re: [PATCH v5 0/4] powerpc patches for new Kconfig language
Date: Wed, 30 May 2018 23:57:11 +0900	[thread overview]
Message-ID: <CAK7LNARoj4g5Wf2Do1npiQUeTpiiFZLuNdmW4JfZw2D-Oe++jw@mail.gmail.com> (raw)
In-Reply-To: <87o9gxyzpo.fsf@concordia.ellerman.id.au>

2018-05-30 23:39 GMT+09:00 Michael Ellerman <mpe@ellerman.id.au>:
> Nicholas Piggin <npiggin@gmail.com> writes:
>
>> This series of patches improves th powerpc kbuild system. The
>> motivation was to to be compatible with the new Kconfig scripting
>> language that Yamada-san has implemented here for merge:
>>
>> https://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild.git/log/?h=kconfig
>>
>> I have tested on top of that tree, powerpc now builds there.
>>
>> To avoid build breakage, the first 3 patches must go before the
>> kconfig change, and the 4th patch must go after it.
>>
>> v5 changes:
>> - Patch 4 update to syntax changed since kconfig-shell-v3 release.
>> - Patch 4 suggestions from Masahiro Yamada, remove unnecessary "OK"
>>   output from check mprofile script, and fold CC_USING_MPROFILE_KERNEL
>>   into CONFIG_MPROFILE_KERNEL.
>> - Reduce whitespace disturbance in patch 1.
>
> I've put this series in a topic branch.
>
>   https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/log/?h=topic/kbuild

No, you can't.

This series depends on my Kconfig work.

You queued it up on v4.17-rc3,
but necessary patches are not there.

You will get build errors.

>
> I'll plan to merge the first three into the powerpc tree.

Please do not do this.

You can issue Acked-by instead.

I need all the 4 patches to my tree.
Otherwise, the git-bisect'ability breaks for PowerPC.

See, the PPC breakage report from Stephen Rothwell
https://lkml.org/lkml/2018/5/29/1296

> Masahiro, are you planning to merge your kconfig changes for 4.18? If so
> you could merge the whole branch and everything should merge nicely.

Yes.

I already queued my and Nicholas' patches.

git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild kconfig

Nicholas,

Please check if the patch order is correct.

I need to insert 'powerpc/kbuild' patches between.

> cheers
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-- 
Best Regards
Masahiro Yamada