From mboxrd@z Thu Jan  1 00:00:00 1970
From: Peter Zijlstra <peterz@infradead.org>
Subject: Re: [RFC 1/4] ARM: topology: Add arch_scale_freq_power function
Date: Wed, 13 Jun 2012 14:52:49 +0200
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To: Vincent Guittot <vincent.guittot@linaro.org>
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On Tue, 2012-06-12 at 14:02 +0200, Vincent Guittot wrote:
>         }
>         smp_wmb();
>  } 

You know what.. we should make checkpatch report an error for memory
barriers that don't have a comment. 

I know this isn't added by this patch, but every time I see something
like it I cry a little.