[PATCH 3.2 047/152] iommu/vt-d: Fix an off-by-one bug in __domain_mapping()

3.2.67-rc1 review patch. If anyone has any objections, please let me know. -- From: Jiang Liu commit cc4f14aa170d895c9a43bdb56f62070c8a6da908 upstream. There's an off-by-one bug in function __domain_mapping(), which may trigger the BUG_ON(nr_pages < lvl_pages) when

[PATCH 3.2 047/152] iommu/vt-d: Fix an off-by-one bug in __domain_mapping()

3.2.67-rc1 review patch. If anyone has any objections, please let me know. -- From: Jiang Liu jiang@linux.intel.com commit cc4f14aa170d895c9a43bdb56f62070c8a6da908 upstream. There's an off-by-one bug in function __domain_mapping(), which may trigger the BUG_ON(nr_pages