Re: Looks broken to me: x86, cyrix: debug
From: Ingo Molnar
Date: Sat Oct 11 2008 - 16:59:34 EST
* Maciej W. Rozycki <macro@xxxxxxxxxxxxxx> wrote:
> 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.
indeed it's broken - will sort it out. It's all about breakage that has
been in this code since v2.6.20, see c6744955d0. Will likely revert the
whole thing.
Ingo
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