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Date:   Tue, 29 May 2012 09:48:31 +0100
From:   Ralf Baechle <ralf@linux-mips.org>
To:     "Maciej W. Rozycki" <macro@linux-mips.org>
Cc:     "Steven J. Hill" <sjhill@mips.com>, linux-mips@linux-mips.org,
        Douglas Leung <douglas@mips.com>
Subject: Re: [PATCH] MIPS: Add support for the MIPS32 4Kc family I/D caches.
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On Sun, May 27, 2012 at 03:19:47AM +0100, Maciej W. Rozycki wrote:

>  It was not a bug, or at least not an active one.  The new encoding was 
> only added with revision 3 of the architecture or thereabouts, so not so 
> long ago.  It used to be reserved previously, so we just handled it 
> arbitrarily (though perhaps we should have panicked instead on 
> encountering it indeed).

The patch at least was applicable to all 2.4 and 2.6 branches ...

  Ralf