linux-kernel - Re: [PATCH] merge_config.sh: Add option for allmodconfig

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Message-ID: <CAK7LNARtznvDh9fuQn5O5S-u6JNk-gcNr61Em=e7T4DN8CrX_g@mail.gmail.com>
Date:   Fri, 10 Jan 2020 01:21:07 +0900
From:   Masahiro Yamada <masahiroy@...nel.org>
To:     John Garry <john.garry@...wei.com>
Cc:     Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Anders Roxell <anders.roxell@...aro.org>
Subject: Re: [PATCH] merge_config.sh: Add option for allmodconfig

On Tue, Jan 7, 2020 at 6:19 PM John Garry <john.garry@...wei.com> wrote:
>
> On 06/01/2020 18:04, Masahiro Yamada wrote:
> > On Mon, Jan 6, 2020 at 6:18 PM John Garry <john.garry@...wei.com> wrote:
> >>
> >> On 10/12/2019 12:09, John Garry wrote:
> >>
> >> Hi Masahiro,
> >>
> >> Could you please consider this patch?
> >>
> >> Thanks,
> >> John
> >>
> >>> Recently there has been some work in reporting and fixing bugs in booting
> >>> an allmodconfig kernel - here are a few examples:
> >>>
> >>> https://lore.kernel.org/linux-edac/304df85b-8b56-b77e-1a11-aa23769f2e7c@huawei.com/T/#t
> >>> https://lore.kernel.org/linux-ide/bdf02e03-86a1-3d35-2908-28187f504495@huawei.com/T/#t
> >>> https://lore.kernel.org/netdev/CADYN=9LCPfbpwdTWKw03B22-y3Text=RWXW7XP7wJBHYsMOgrA@mail.gmail.com/
> >>> https://sourceforge.net/p/openipmi/mailman/message/36871567/
> >>>
> >>> If we want to boot an allmodconfig kernel we may still want to force some
> >>> loadable modules built-in, like UART drivers. Or just still turn off some
> >>> configs.
> >
> >
> > I do not understand why you need to use merge_config.sh
> > for this purpose.
> >
> > KCONFIG_ALLCONFIG=<path-to-your-config-fragment> make allmodconfig
> >
> > should work.
> >
> >
>
> Right, I could use that. But generally some people like to use
> merge_config.sh directly:
>
> ./scripts/kconfig/merge_config.sh [-a] fragment
>
> so nice to have -a option for completeness.
>


Honestly, I am getting scared
about people extending this script more and more
to do what they want.

Since allmodconfig works enough for this usecase,
I do not see a good reason to add the new option.

-- 
Best Regards
Masahiro Yamada