linux-kernel - Re: [PATCH 1/5] kconfig: include common Kconfig files from top-level Kconfig

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Message-ID: <e230cffa-b3ea-d5c2-3d2c-5f822c9c2e7d@infradead.org>
Date:   Tue, 3 Jul 2018 09:11:35 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     Christoph Hellwig <hch@....de>
Cc:     Masahiro Yamada <yamada.masahiro@...ionext.com>,
        linux-kbuild@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/5] kconfig: include common Kconfig files from top-level
 Kconfig

On 07/03/18 06:36, Christoph Hellwig wrote:
> On Mon, Jul 02, 2018 at 01:08:16PM -0700, Randy Dunlap wrote:
>>> I would prefer to have init/Kconfig before arch/$(SRCARCH)/Kconfig.
>>
>> Ugh, that won't get this set correctly on x86_64:
>> CONFIG_PGTABLE_LEVELS=2
> 
> Did you try it?  As far as I can tell modern kconfig isn't really
> order sensitive any more.
> --

Yes, it was wrong. :(

Once the symbol has a default value, it won't be assigned a different
default value (at least that's how it looks; I haven't read the kconfig
source code).

-- 
~Randy