linux-kernel - Re: [PATCH] x86: remove redundant 'default n' from Kconfig-s

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Message-ID: <20181017083349.GC22535@zn.tnic>
Date:   Wed, 17 Oct 2018 10:33:49 +0200
From:   Borislav Petkov <bp@...en8.de>
To:     Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
        Boris Ostrovsky <boris.ostrovsky@...cle.com>,
        Juergen Gross <jgross@...e.co>, xen-devel@...ts.xenproject.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] x86: remove redundant 'default n' from Kconfig-s

Hi Bart,

On Tue, Oct 16, 2018 at 03:42:16PM +0200, Bartlomiej Zolnierkiewicz wrote:
> 'default n' is the default value for any bool or tristate Kconfig
> setting so there is no need to write it explicitly.
> 
> Also since commit f467c5640c29 ("kconfig: only write '# CONFIG_FOO
> is not set' for visible symbols") the Kconfig behavior is the same
> regardless of 'default n' being present or not:
> 
>     ...
>     One side effect of (and the main motivation for) this change is making
>     the following two definitions behave exactly the same:
>     
>         config FOO
>                 bool
>     
>         config FOO
>                 bool
>                 default n
>     
>     With this change, neither of these will generate a
>     '# CONFIG_FOO is not set' line (assuming FOO isn't selected/implied).
>     That might make it clearer to people that a bare 'default n' is
>     redundant.
>     ...
> 
> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
> ---
>  arch/x86/Kconfig       |    7 -------
>  arch/x86/Kconfig.debug |    1 -
>  arch/x86/xen/Kconfig   |    1 -
>  3 files changed, 9 deletions(-)

looks good, no difference of allmodconfigs before and after.

But that close before the merge window and it not being urgent, I'll
queue it after the merge window.

Thx.

-- 
Regards/Gruss,
    Boris.

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