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From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH] sky2: Fix WARNING: at lib/dma-debug.c:902 check_sync
Date: Wed, 20 Jan 2010 14:45:00 -0800 (PST)
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From: Stephen Hemminger <shemminger@linux-foundation.org>
Date: Wed, 20 Jan 2010 12:30:33 -0800

> It looks like the size passed to sync_single has to match size of original
> mapping.

I think that's rediculious, and unreasonable.

All implementations of these APIs where the sync matters have the
ability to handle partial syncs correctly.