linux-kernel - Blocking allmodconfig with missing defaults (was: Re: kbuild: Fix missing '\n' for NEW symbols in yes ""

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Message-ID: <CAMuHMdXAGBU97pg2SzoZteFk9fd7FOpOVtu=buZ40z+SwRpE6Q@mail.gmail.com>
Date:	Thu, 23 May 2013 11:52:25 +0200
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	Michal Marek <mmarek@...e.cz>,
	Ben Hutchings <bhutchings@...arflare.com>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	linux-kbuild <linux-kbuild@...r.kernel.org>
Subject: Blocking allmodconfig with missing defaults (was: Re: kbuild: Fix
 missing '\n' for NEW symbols in yes "" | make oldconfig >conf.new)

On Wed, Feb 27, 2013 at 9:37 PM, Linux Kernel Mailing List
<linux-kernel@...r.kernel.org> wrote:
> Gitweb:     http://git.kernel.org/linus/;a=commit;h=62dc989921df2a98d1a73aacd085abe941cb9828
>
>     According to Documentation/kbuild/kconfig.txt, the commands:
>
>         yes "" | make oldconfig >conf.new
>         grep "(NEW)" conf.new
>
>     should list the new config symbols with their default values.

There are other cases where this is not working.
If there are int or hex symbols without a default value, "allmodconfig",
"allyesconfig", "allnoconfig", and "randconfig" fill in empty string values,
causing a subsequent build (which does oldconfig) to wait for user input.

This is easy to reproduce:
    make ARCH=h8300 allmodconfig
    make ARCH=h8300 oldconfig

Should kconfig generate default values for these cases?
Should all int/hex symbols provide default values? If yes, I think
kconfig should
complain about missing defaults.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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