linux-kernel - Re: [PATCH] kconfig: Add a build target for checking current config for issues

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Message-ID: <CAK7LNAS29-KZvuHE=WE7ravvqh4e-M5Da=MZ2vh_EM7_Jo_jbw@mail.gmail.com>
Date: Sat, 13 Jan 2024 19:50:18 +0900
From: Masahiro Yamada <masahiroy@...nel.org>
To: Tomasz Figa <tfiga@...omium.org>
Cc: linux-kbuild@...r.kernel.org, linux-kernel@...r.kernel.org, 
	Sergey Senozhatsky <senozhatsky@...omium.org>
Subject: Re: [PATCH] kconfig: Add a build target for checking current config
 for issues

On Wed, Jan 10, 2024 at 10:15 PM Tomasz Figa <tfiga@...omium.org> wrote:
>
> On Fri, Dec 29, 2023 at 1:11 AM Masahiro Yamada <masahiroy@...nelorg> wrote:
> >
> > On Thu, Dec 28, 2023 at 4:09 PM Tomasz Figa <tfiga@...omium.org> wrote:
> > >
> > > The new target is called 'checkconfig' and currently is basically an
> > > alias for `listnewconfig` with KCONFIG_WARN_UNKNOWN_SYMBOLS set to true.
> > > It can be used to validate if the current config is directly compatible
> > > with the current kernel version or needs some manual adjustment.
> > >
> > > Signed-off-by: Tomasz Figa <tfiga@...omium.org>
> >
> >
> > I rejected a new target in the past.
> >
> > https://lore.kernel.org/all/20230817012007.131868-1-senozhatsky@chromium.org/T/#m55c37e3091158f8cb008d9e0b5c6bf3f5ead225a
> >
>
> That was specifically for the unrecognized symbols warning. What I'm
> proposing is a universal target that would include any possible
> diagnostics.
>
> >
> >
> > Instead, you can run
> >
> >   KCONFIG_WARN_UNKNOWN_SYMBOLS=1 make listnewconfig
> >
> > or
> >
> >   make W=c listnewconfig
> >
> >
>
> I can do so, because my team member implemented it and told me and
> other team members about it. But how would someone who hasn't heard
> about it be aware of the existence of this useful feature?


People are not aware of your 'checkconfig' until
they run 'make help'.

The same for W=c.

'make help' explains it.


       c: extra checks in the configuration stage (Kconfig)


-- 
Best Regards
Masahiro Yamada