From: Joerg Roedel <joerg.roe...@amd.com>
-------------------
This is a commit scheduled for the next v2.6.34 longterm release.
http://git.kernel.org/?p=linux/kernel/git/paulg/longterm-queue-2.6.34.git
If you see a problem with using this for longterm, please comment.
-------------------
commit fcd0861db1cf4e6ed99f60a815b7b72c2ed36ea4 upstream.
The shift direction was wrong because the function takes a
page number and i is the address is the loop.
Signed-off-by: Joerg Roedel <joerg.roe...@amd.com>
[PG: drivers/iommu/ was arch/x86/kernel/ in 2.6.34 context]
Signed-off-by: Paul Gortmaker <paul.gortma...@windriver.com>
---
arch/x86/kernel/amd_iommu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
index 1aae617..74ce61d 100644
--- a/arch/x86/kernel/amd_iommu.c
+++ b/arch/x86/kernel/amd_iommu.c
@@ -1046,7 +1046,7 @@ static int alloc_new_range(struct dma_ops_domain *dma_dom,
if (!pte || !IOMMU_PTE_PRESENT(*pte))
continue;
- dma_ops_reserve_addresses(dma_dom, i << PAGE_SHIFT, 1);
+ dma_ops_reserve_addresses(dma_dom, i >> PAGE_SHIFT, 1);
}
update_domain(&dma_dom->domain);
--
1.7.12.rc2
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