linux-kernel - Re: [PATCH 12/39] introduce __ASM

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Date:	Sat, 28 Jun 2008 14:09:47 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	Glauber Costa <gcosta@...hat.com>
Cc:	linux-kernel@...r.kernel.org, tglx@...utronix.de, mingo@...e.hu,
	x86@...nel.org
Subject: Re: [PATCH 12/39] introduce __ASM_REG macro

Glauber Costa <gcosta@...hat.com> writes:

> There are situations in which the architecture wants to use the
> register that represents its word-size, whatever it is. For those,
> introduce __ASM_REG in asm.h, along with the first users _ASM_AX
> and _ASM_DX. They have users waiting for it, namely the getuser
> functions.

FYI the ABI of the 64bit get_user was designed for minimal
code size originally.  You should check for regressions if you
change that.

-Andi
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