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Subject: Re: [PATCH 1/2] perf-events: Add support for supplementary event
 registers v2
From: Peter Zijlstra <a.p.zijlstra@chello.nl>
To: Andi Kleen <andi@firstfloor.org>
Cc: Stephane Eranian <eranian@google.com>, linux-kernel@vger.kernel.org,
        cjashfor@linux.vnet.ibm.com, mingo@elte.hu, fweisbec@gmail.com,
        Andi Kleen <ak@linux.intel.com>
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Date: Sat, 13 Nov 2010 11:34:22 +0100
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On Sat, 2010-11-13 at 11:17 +0100, Andi Kleen wrote:
> > That would assume a single event doesn't contain offcore and lbr, no?
> > Currently the extra_reg thing assumes there's only one extra reg encoded
> > in the config word.
> 
> It would not be too hard to make it an array if that's needed.

I don't think we want to go there anyway, one extra_reg per config value
is fine.