From: Ingo Molnar <mingo@elte.hu>
To: "Maciej W. Rozycki" <macro@linux-mips.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
torvalds@linux-foundation.org
Subject: Re: Looks broken to me: x86, cyrix: debug
Date: Sat, 11 Oct 2008 22:58:58 +0200 [thread overview]
Message-ID: <20081011205858.GA21965@elte.hu> (raw)
In-Reply-To: <alpine.LFD.1.10.0810112146400.1984@ftp.linux-mips.org>
* Maciej W. Rozycki <macro@linux-mips.org> 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
next prev parent reply other threads:[~2008-10-11 20:59 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <200810112003.m9BK3Wwu025556@hera.kernel.org>
2008-10-11 20:40 ` Looks broken to me: x86, cyrix: debug Alan Cox
2008-10-11 20:52 ` Maciej W. Rozycki
2008-10-11 20:58 ` Ingo Molnar [this message]
2008-10-11 22:48 ` Willy Tarreau
2008-10-11 22:55 ` Maciej W. Rozycki
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