linux-kernel - Re: [PATCH v4 00/11] kbuild/kconfig: do not update config during installation

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Date:   Wed, 25 Jul 2018 23:40:06 +0900
From:   Masahiro Yamada <yamada.masahiro@...ionext.com>
To:     Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>
Cc:     Dirk Gouders <dirk@...ders.net>,
        Ulf Magnusson <ulfalizer@...il.com>,
        Sam Ravnborg <sam@...nborg.org>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Michal Marek <michal.lkml@...kovi.net>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v4 00/11] kbuild/kconfig: do not update config during installation

2018-07-20 16:46 GMT+09:00 Masahiro Yamada <yamada.masahiro@...ionext.com>:
>
> The main motivation of this patch series is to suppress the syncconfig
> during running installation targets.
>
> V1 consisted of only two patches:
>   https://patchwork.kernel.org/patch/10468105/
>   https://patchwork.kernel.org/patch/10468103/
>
> I noticed that installation targets would continue running
> even if the source tree is not configured at all
> because the inclusion of include/config/auto.conf was optional.
>
> So, I added one more patch in V2:
>  https://patchwork.kernel.org/patch/10483637/
>
> However, kbuild test robot reported a new warning message was displayed:
>
> Makefile:592: include/config/auto.conf: No such file or directory
>
> This warning is displayed only for Make 4.1 or older.
>
> To fix this annoying warning, I changed Kconfig too,
> which leaded to more clean-up, improvements in Kconfig.
>
> So, V3 became a big patch series.
>
> Only a few changes for V4.
>  - I dropped the last patch in v3.
>  - I am keeping include/config/auto.conf as the prerequisite of modules.builtin (11/11)


Applied to linux-kbuild/kconfig.


>
> Masahiro Yamada (11):
>   kconfig: rename file_write_dep and move it to confdata.c
>   kconfig: split out useful helpers in confdata.c
>   kconfig: remove unneeded directory generation from local*config
>   kconfig: create directories needed for syncconfig by itself
>   kconfig: make syncconfig update .config regardless of sym_change_count
>   kconfig: allow all config targets to write auto.conf if missing
>   kbuild: use 'include' directive to load auto.conf from top Makefile
>   kbuild: add .DELETE_ON_ERROR special target
>   kbuild: do not update config when running install targets
>   kbuild: do not update config for 'make kernelrelease'
>   kbuild: remove auto.conf from prerequisite of phony targets
>
>  Makefile                    |  44 +++++++++------
>  scripts/Kbuild.include      |   3 +
>  scripts/kconfig/Makefile    |  16 ++----
>  scripts/kconfig/conf.c      |  39 +++++++------
>  scripts/kconfig/confdata.c  | 135 +++++++++++++++++++++++++++++++++++++-------
>  scripts/kconfig/gconf.c     |   1 +
>  scripts/kconfig/lkc.h       |   1 -
>  scripts/kconfig/lkc_proto.h |   2 +-
>  scripts/kconfig/mconf.c     |   1 +
>  scripts/kconfig/nconf.c     |   1 +
>  scripts/kconfig/qconf.cc    |   2 +
>  scripts/kconfig/util.c      |  30 ----------
>  12 files changed, 177 insertions(+), 98 deletions(-)
>
> --
> 2.7.4
>
> --
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-- 
Best Regards
Masahiro Yamada