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Subject[PATCH 3.2 55/94] iommu/amd: Finish TLB flush in amd_iommu_unmap()
3.2.97-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Joerg Roedel <jroedel@suse.de>

commit ce76353f169a6471542d999baf3d29b121dce9c0 upstream.

The function only sends the flush command to the IOMMU(s),
but does not wait for its completion when it returns. Fix
that.

Fixes: 601367d76bd1 ('x86/amd-iommu: Remove iommu_flush_domain function')
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/iommu/amd_iommu.c | 1 +
1 file changed, 1 insertion(+)

--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -2772,6 +2772,7 @@ static int amd_iommu_unmap(struct iommu_
mutex_unlock(&domain->api_lock);

domain_flush_tlb_pde(domain);
+ domain_flush_complete(domain);

return get_order(unmap_size);
}
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