On Fri, Jan 16, 2015 at 04:47:19PM -0700, Shuah Khan wrote:
> 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 <shua...@osg.samsung.com>
> Reported-by: Alex Williamson <alex.william...@redhat.com>
> ---
> drivers/iommu/iommu.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
> index fbf8827..2eb7554 100644
> --- a/drivers/iommu/iommu.c
> +++ b/drivers/iommu/iommu.c
> @@ -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;
Instead of adding another variable I think it is better to just move the
trace_unmap call before the unmap loop. It can actually replace the
pr_debug there.
Joerg
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