The IOMMU driver supports default domain, so the detach_dev op will never
be called. Remove it to avoid dead code.

Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
---
 drivers/iommu/exynos-iommu.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/exynos-iommu.c
index b0cde2211987..29ec713e8a21 100644
--- a/drivers/iommu/exynos-iommu.c
+++ b/drivers/iommu/exynos-iommu.c
@@ -1404,7 +1404,6 @@ static const struct iommu_ops exynos_iommu_ops = {
 	.of_xlate = exynos_iommu_of_xlate,
 	.default_domain_ops = &(const struct iommu_domain_ops) {
 		.attach_dev	= exynos_iommu_attach_device,
-		.detach_dev	= exynos_iommu_detach_device,
 		.map		= exynos_iommu_map,
 		.unmap		= exynos_iommu_unmap,
 		.iova_to_phys	= exynos_iommu_iova_to_phys,
-- 
2.34.1