linux-kernel - Re: [PATCH v2] cirrus-logic-framebuffer-i2c-support.patch

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Date:	Thu, 27 Jul 2006 23:23:19 +0200
From:	Jean Delvare <khali@...ux-fr.org>
To:	"Antonino A. Daplas" <adaplas@...il.com>,
	Krzysztof Halasa <khc@...waw.pl>
Cc:	Andrew Morton <akpm@...l.org>, lkml <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] cirrus-logic-framebuffer-i2c-support.patch

Hi Tony & Krzysztof,

> > I think it would be different if trying to select something which
> > can't be selected automatically resulted in a warning. I think
> > I have to look at it then, but for now I'll use something like
> > "depends on (FB_CIRRUS=m && I2C && I2C_ALGOBIT) ||
> > (FB_CIRRUS=y && I2C=y && I2C_ALGOBIT=y)".
> 
> Well if the i2c code happens to depend on another module, I hope
> that Jean would warn us in a timely manner :-). And even if Jean
> failed to do so, it would immediately result in a compile
> error/warning which should lead to an easy fix.

I2C and I2C_ALGOBIT are very unlikely to ever depend on anything, so
this isn't a problem.

> I still prefer 'select' just because it's easier to parse, but
> either way is okay, though your method takes me a few more seconds
> to understand.

The Right Way (TM) is to depend on I2C but select I2C_ALGOBIT. I have
plans to hide I2C_ALGOBIT from the configuration menu - the user should
never have to explicitely select it, it's only an helper module. So if
you depend on it, you'll be screwed.

-- 
Jean Delvare
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