linux-kernel - Re: [GIT] kbuild and kconfig fixes for 2.6.37-rc5

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Date:	Mon, 06 Dec 2010 10:58:19 -0800
From:	Randy Dunlap <randy.dunlap@...cle.com>
To:	Arnaud Lacombe <lacombar@...il.com>
CC:	Catalin Marinas <catalin.marinas@....com>, trapdoor6@...il.com,
	Michal Marek <mmarek@...e.cz>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	brueckner@...ux.vnet.ibm.com, mchehab@...hat.com,
	linux-kbuild@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [GIT] kbuild and kconfig fixes for 2.6.37-rc5

On 12/06/10 10:56, Arnaud Lacombe wrote:
> Hi,
> 
> On Mon, Dec 6, 2010 at 1:03 PM, Randy Dunlap <randy.dunlap@...cle.com> wrote:
>> On 12/06/10 10:01, Catalin Marinas wrote:
>> [...]
>>> This could be simplified to only show the first option of every '&&'
>>> expression, something like below:
>>>
>>> warning: I2C_ISCH selects MFD_CORE...
>>> warning: GPIO_SCH selects MFD_CORE...
>>>
>>> But I couldn't figure out whether the expression reduction code in
>>> kbuild reorders the options or not.
>>
> This was the purpose of a patch I send a month or two ago, though, you
> defeated it with cases the code was not taking into account. I updated
> it since, but did not post it. I'll post it on linux-kbuild@ and
> continue the discussion there.
> 
>> I'm pretty sure that I have seen cases where the faulty kconfig is not the
>> first one listed, so all of them need to be available.
>>
> do you have an example ?

Not at hand, but I'll be on the lookout for one.

-- 
~Randy
*** Remember to use Documentation/SubmitChecklist when testing your code ***
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