linux-kernel - Re: [RFC PATCH] x86/kconfig: Sanity-check config file during oldconfig

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Date:	Mon, 18 Jan 2016 15:06:49 +0100
From:	Borislav Petkov <bp@...e.de>
To:	Thomas Voegtle <tv@...96.de>
Cc:	Michal Marek <mmarek@...e.cz>,
	Måns Rullgård <mans@...sr.com>,
	Markus Trippelsdorf <markus@...ppelsdorf.de>,
	linux-kernel@...r.kernel.org, x86-ml <x86@...nel.org>
Subject: Re: [RFC PATCH] x86/kconfig: Sanity-check config file during
 oldconfig

On Mon, Jan 18, 2016 at 02:36:09PM +0100, Thomas Voegtle wrote:
> My problem was, CONFIG_MICROCODE got dropped silently, and yes that is
> fixed for me with this patch. But I think this is a little bit odd way
> to fix it, but I don't have a better idea.

Me neither. The problem is, I need to grep the config that goes into
the "oldconfig" *before* scripts/kconfig/conf gets a hold of it and
satisfies deps and thus turns off CONFIG_MICROCODE in the process. This
is a simpler solution short of hacking scripts/kconfig/conf and it can
be used for other stuff we might need in arch/x86/

> What's with olddefconfig

Yes, I'll update the patch.

> and silentoldconfig ?

This one is funny. Makefile's help says:

  silentoldconfig - Same as oldconfig, but quietly, additionally update deps

and yet doing

$ make silentoldconfig

is not very silent and goes through all new prompts asking me about them.

Regarding this issue, yes, I'll add its name to the script too.

> btw that patch has to go to stable 4.4, too

Sure, once we agree on the approach.

Thanks.

-- 
Regards/Gruss,
    Boris.

SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg)
--