[PATCH] iommu/arm-smmu: wire up map_sg for arm-smmu-v3

[Will Deacon]

From: Jean-Philippe Brucker <jean-philippe.brucker at arm.com>

The map_sg callback is missing from arm_smmu_ops, but is required by
iommu.h. Similarly to most other IOMMU drivers, connect it to
default_iommu_map_sg.

Cc: <stable at vger.kernel.org>
Signed-off-by: Jean-Philippe Brucker <jean-philippe.brucker at arm.com>
Signed-off-by: Will Deacon <will.deacon at arm.com>
---

Joerg -- this is the only fix I have queued, so could you pick it up
directly, please?

 drivers/iommu/arm-smmu-v3.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c
index 94b68213c50d..5f6b3bcab078 100644
--- a/drivers/iommu/arm-smmu-v3.c
+++ b/drivers/iommu/arm-smmu-v3.c
@@ -1941,6 +1941,7 @@ static struct iommu_ops arm_smmu_ops = {
 	.attach_dev		= arm_smmu_attach_dev,
 	.map			= arm_smmu_map,
 	.unmap			= arm_smmu_unmap,
+	.map_sg			= default_iommu_map_sg,
 	.iova_to_phys		= arm_smmu_iova_to_phys,
 	.add_device		= arm_smmu_add_device,
 	.remove_device		= arm_smmu_remove_device,
-- 
2.1.4