Re: [PATCH 1/5] perf, x86: Remove incorrect model number from Haswell perf

From: Thomas Gleixner
Date: Wed Aug 27 2014 - 14:51:15 EST

On Wed, 27 Aug 2014, Andi Kleen wrote:
> On Wed, Aug 27, 2014 at 11:53:57AM +0200, Thomas Gleixner wrote:
> > Try again when you figured yourself out what number means what and why
> > 71 is bogus.
> 71 is definitely not a Haswell, but a Broadwell.

Fine. So the changelog should tell so.

> However it was removed from the Broadwell patch based on Peter's
> feedback.
> So technically the patch is not needed right now because there
> would be no duplicates (unless 71 was readded), so the compiler
> would not complain.

It's very well technically needed simply because its not a haswell and
if it's run on real model 71 hardware we'll get some interesting stuff
to debug.

> However it's still incorrect for Haswell, so I maintain removing
> it is the right thing to do.

I did not argue against the removal itself. That's fine and obviously
correct if model 71 is not a haswell. All I want is a proper patch (1
line) and a proper changelog explaining WHY this is the right thing to



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