linux-kernel - Re: [PATCH 0/7] Porting dynmaic ftrace to PowerPC

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Message-ID: <alpine.DEB.1.10.0811190714340.20272@gandalf.stny.rr.com>
Date:	Wed, 19 Nov 2008 07:15:21 -0500 (EST)
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Ingo Molnar <mingo@...e.hu>
cc:	Paul Mackerras <paulus@...ba.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	linuxppc-dev@...abs.org
Subject: Re: [PATCH 0/7] Porting dynmaic ftrace to PowerPC

On Wed, 19 Nov 2008, Steven Rostedt wrote:

> 
> On Wed, 19 Nov 2008, Ingo Molnar wrote:
> > 
> > Maybe Steve could do the following trick: create a Linus -git based 
> > branch that uses the new APIs but marks ppc's ftrace as "depends 0" in 
> > the powerpc Kconfig. (the new ftrace.c wont build)
> 
> There's only two generic commits that need to be added for the PowerPC 
> code to work.
> 
>   ftrace: pass module struct to arch dynamic ftrace functions
>   ftrace: allow NULL pointers in mcount_loc
> 
> I've already ported them to mainline to test PowerPC there.
> Paul could use these two versions and keep ftrace in a separate branch in 
> his tree. This way all the PowerPC code will be there, and actually can be 
> tested. They may still hit the same bugs that we have fixed in tip, but 
> those should all be minor, since any major bug is already in mainline or 
> on its way.

I just pushed all the PowerPC patches on top of this port it works.
I still need to rework the patches for Paul.

-- Steve

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