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iommu: Fix trace_unmap() to report original iova 

iommu_unmap() calls trace_unmap() with changed iova and original
size. trace_unmap() should report original iova instead. Change
iommu_unmap() to call trace_unmap() with original iova.

Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Reported-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Shuah Khan 2015-01-16 16:47:19 -07:00 committed by Joerg Roedel
parent 0fb5fe874c
commit 6fd492fd74
1 changed files with 2 additions and 1 deletions
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3
drivers/iommu/iommu.c
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@ -1094,6 +1094,7 @@ size_t iommu_unmap(struct iommu_domain *domain, unsigned long iova, size_t size)
{
size_t unmapped_page, unmapped = 0;
unsigned int min_pagesz;
unsigned long orig_iova = iova;
if (unlikely(domain->ops->unmap == NULL ||
domain->ops->pgsize_bitmap == 0UL))
@ -1133,7 +1134,7 @@ size_t iommu_unmap(struct iommu_domain *domain, unsigned long iova, size_t size)
unmapped += unmapped_page;
}
trace_unmap(iova, 0, size);
trace_unmap(orig_iova, 0, size);
return unmapped;
}
EXPORT_SYMBOL_GPL(iommu_unmap);