iommu: Constify struct iommu_ops

This structure is read-only data and should never be modified.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Joerg Roedel <jroedel@suse.de>

diff --cc drivers/iommu/amd_iommu.c
Simple merge

diff --cc drivers/iommu/arm-smmu.c
Simple merge

diff --cc drivers/iommu/exynos-iommu.c
Simple merge

diff --cc drivers/iommu/fsl_pamu_domain.c
Simple merge

diff --cc drivers/iommu/intel-iommu.c
Simple merge

diff --cc drivers/iommu/iommu.c
Simple merge

diff --cc drivers/iommu/ipmmu-vmsa.c
Simple merge

diff --cc drivers/iommu/msm_iommu.c
Simple merge

diff --cc drivers/iommu/omap-iommu.c
Simple merge

diff --cc drivers/iommu/shmobile-iommu.c
Simple merge

diff --cc drivers/iommu/tegra-gart.c
Simple merge

diff --cc drivers/iommu/tegra-smmu.c
Simple merge

diff --cc include/linux/device.h
Simple merge

diff --cc include/linux/iommu.h
Simple merge