linux-kernel - Re: [PATCH] ftrace, powerpc64: fix math to calculate offset in TOC

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Message-Id: <1234218119.31963.109.camel@pasglop>
Date:	Tue, 10 Feb 2009 09:21:59 +1100
From:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Steven Rostedt <rostedt@...dmis.org>,
	LKML <linux-kernel@...r.kernel.org>, linuxppc-dev@...abs.org,
	Paul Mackerras <paulus@...ba.org>,
	Arnd Bergmann <arnd@...db.de>,
	Geoff Levand <geoffrey.levand@...sony.com>,
	Remis Lima Baima <remis.developer@...glemail.com>
Subject: Re: [PATCH] ftrace, powerpc64: fix math to calculate offset in TOC

On Mon, 2009-02-09 at 10:40 +0100, Ingo Molnar wrote:
> * Steven Rostedt <rostedt@...dmis.org> wrote:
> 
> > 
> > Paul,
> > 
> > I found the bug that was causing large modules to fail in setting
> > up dynamic ftrace. It wound up being a simple math error. To calculate
> > the offset in the TOC, I had used an OR, but the bottom half was
> > a signed extended short, and it should have been an addition.
> > The fix is in my tree below, as well as posted here.
> 
> Looks like a .29 candidate?

Yup, I was planning to send it to Linus along with a handful of other
powerpc fixes today, unless you prefer taking it yourself.

Cheers,
Ben.


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