linux-kernel - Re: x86 merge - a little feedback

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Date:	Tue, 11 Sep 2007 14:24:05 -0700 (PDT)
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Thomas Gleixner <tglx@...utronix.de>
cc:	Sam Ravnborg <sam@...nborg.org>, Ingo Molnar <mingo@...e.hu>,
	Andi Kleen <ak@...e.de>, LKML <linux-kernel@...r.kernel.org>
Subject: Re: x86 merge - a little feedback



On Tue, 11 Sep 2007, Thomas Gleixner wrote:
> 
> I tried to unify the Makefile by using 
> 
> obj-$(CONFIG_X86_32) += ....
> and
> obj-$(CONFIG_X86_64) += ....

Don't do that.

I think it would be much better to instead do something like

	obj-y += mmconfig_$(CONFIG_WORD_SIZE).o

to make it clear when we have a file that is conceptually the same, but 
has different implementations.

That also makes the unification (assuming/hoping it gets done) of such 
files much cleaner - you just merge them, and the obj-y line can just drop 
the $(CONFIG_WORD_SIZE) thing. Very logical.

> but I did fail due to link order problems in that code.

.. the above approach also gets rid of any link order problems.

			Linus
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