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Date: Sat, 11 Oct 2008 21:52:18 +0100 (BST)
From: "Maciej W. Rozycki" <macro@linux-mips.org>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>, mingo@elte.hu,
       torvalds@linux-foundation.org
Subject: Re: Looks broken to me: x86, cyrix: debug
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On Sat, 11 Oct 2008, Alan Cox wrote:

> > +#define getCx86_old(reg) ({ outb((reg), 0x22); inb(0x23); })
> 
> Doesn't expand to any kind of returned value.

 Well, actually it returns the value of the inb() expression -- cf the 
semantics of compound statements.  The rest looks suspicious indeed.

  Maciej