From e64b7bab4ff4db9caa98fd139126cde8edfa029e Mon Sep 17 00:00:00 2001 From: Joerg Roedel Date: Tue, 11 Oct 2011 17:41:32 +0200 Subject: [PATCH] iommu/amd: Fix wrong shift direction 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 Signed-off-by: Greg Kroah-Hartman --- 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 7cd33f75a69c..3a44b7567030 100644 --- a/arch/x86/kernel/amd_iommu.c +++ b/arch/x86/kernel/amd_iommu.c @@ -842,7 +842,7 @@ static int alloc_new_range(struct amd_iommu *iommu, 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); -- 2.39.5