linux-kernel - Re: KCONFIG_ALLCONFIG + allmodconfig = brokenness

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Date:	Sun, 29 Dec 2013 18:30:10 -0800
From:	Randy Dunlap <rdunlap@...radead.org>
To:	"H. Peter Anvin" <hpa@...or.com>, linux-kbuild@...r.kernel.org,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: KCONFIG_ALLCONFIG + allmodconfig = brokenness

On 12/29/13 18:22, Randy Dunlap wrote:
> On 12/29/13 17:32, H. Peter Anvin wrote:
>> When KCONFIG_ALLCONFIG is used with "make allmodconfig", the result ends
>> up being largely the same as "make allyesconfig", because the resulting
>> kernel ends up with CONFIG_MODULES=n:
>>
>> How to reproduce:
>>
>> : tazenda 125 ; make O=../o.test allmodconfig
>>   GEN     /home/hpa/kernel/o.test/Makefile
>> scripts/kconfig/conf --allmodconfig Kconfig
>> #
>> # configuration written to .config
>> #
>> : tazenda 126 ; grep CONFIG_MODULES ../o.test/.config
>> CONFIG_MODULES_USE_ELF_RELA=y
>> CONFIG_MODULES=y
>> : tazenda 127 ; env KCONFIG_ALLCONFIG=/dev/null make O=../o.test
>> allmodconfig
>>   GEN     /home/hpa/kernel/o.test/Makefile
>> scripts/kconfig/conf --allmodconfig Kconfig
>> #
>> # configuration written to .config
>> #
>> : tazenda 128 ; grep CONFIG_MODULES ../o.test/.config
>> CONFIG_MODULES_USE_ELF_RELA=y
>> # CONFIG_MODULES is not set
>> --
> 
> Yes, I discovered this a few weeks ago.
> I just ended up adding
> CONFIG_MODULES=y
> to my KCONFIG_ALLCONFIG file.
> 
> There was a comment in the git commit for it about this (that I discovered
> during my "research" into it), but I can't find it just now.

See 11097a0367e48954ecf616f9b0df48d86835dd0d.

> I wasn't fond of the change either.
> 
> 


-- 
~Randy
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