From: Fenghua Yu <fenghua.yu@intel.com>
Date: Tue, 4 Aug 2009 22:09:37 +0000 (-0700)
Subject: intel-iommu: Correct sglist size calculation.
X-Git-Tag: v2.6.31-rc6~43^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f532959b77e5e567c84c914cb7c7b07d2582448b;p=pandora-kernel.git

intel-iommu: Correct sglist size calculation.

In domain_sg_mapping(), use aligned_nrpages() instead of hand-coded
rounding code for calculating the size of each sg elem. This means that
on IA64 we correctly round up to the MM page size, not just to the VT-d
page size.

Also remove the incorrect mm_to_dma_pfn() when intel_map_sg() calls
domain_sg_mapping() -- the 'size' variable is in VT-d pages already.

Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
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