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Date:   Fri, 5 Jun 2015 22:18:41 +0100 (BST)
From:   "Maciej W. Rozycki" <macro@linux-mips.org>
To:     Ralf Baechle <ralf@linux-mips.org>
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Subject: Re: [PATCH 1/3] MIPS: R6: Use lightweight SYNC instruction in smp_*
 memory barriers
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On Fri, 5 Jun 2015, Ralf Baechle wrote:

> do you have an R4000 / R4600 / R5000 / R7000 / SiByte system at hand to
> test this?

 I should be able to check R4400 (that is virtually the same as R4000) 
next week or so.  As to SiByte -- not before next month I'm afraid.  I 
don't have access to any of the other processors you named.  You may 
want to find a better person if you want to accept this change soon.

  Maciej