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

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Date:	Mon, 9 Feb 2009 10:02:28 -0500 (EST)
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Ingo Molnar <mingo@...e.hu>
cc:	LKML <linux-kernel@...r.kernel.org>, linuxppc-dev@...abs.org,
	Paul Mackerras <paulus@...ba.org>,
	Benjamin Herrenschmidt <benh@...nel.crashing.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, 9 Feb 2009, 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?

Ingo,

I think Ben pulled them into their tree. The changes are specific to ppc, 
and will probably get better user testing there. Unless you feel that we 
have a bit of ppc testers using tip.

-- Steve

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