linux-kernel - Re: linux-next: Tree for December 8 (drivers/platform/x86/Kconfig:422:error: recursive dependency detected!)

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Message-ID: <1291851309.5992.150.camel@i7.infradead.org>
Date:	Wed, 08 Dec 2010 23:35:08 +0000
From:	David Woodhouse <dwmw2@...radead.org>
To:	Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc:	Randy Dunlap <randy.dunlap@...cle.com>,
	Corentin Chary <corentin.chary@...il.com>,
	sedat.dilek@...il.com, Matthew Garrett <mjg@...hat.com>,
	LKML <linux-kernel@...r.kernel.org>,
	platform-driver-x86@...r.kernel.org,
	Stephen Rothwell <sfr@...b.auug.org.au>
Subject: Re: linux-next: Tree for December 8
 (drivers/platform/x86/Kconfig:422:error: recursive dependency detected!)

On Wed, 2010-12-08 at 15:31 -0800, Dmitry Torokhov wrote:
> Even better tool would allow selecting the needed optios right there,
> without the need of moving away from teh current option.

That's exactly what the Nemesis version of xconfig did, almost 15 years
ago.

>  And yet better tool would not even ask user and enable them on its
> own. Hey, but we have it! It's called "select".

The tools could do that with 'depends on' too. Why make a distinction?

> Seriously, select is dangerous. I wonder if a rule like "One can only
> select a symbol whose dependencies are all satisfied by the current
> symbol and/or its parents and the symbols they select or depend on"
> would not make select safe enough. 

"One can only select a symbol which isn't otherwise presented to the
user as a choice".

So things like CONFIG_REED_SOLOMON are fine to be selected, because the
user would never see it anyway.

Otherwise, just use depends. And if that's a problem for you, fix the
damn tools.
 
-- 
dwmw2

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