Function prototype or declaration at include/linux/iommu.h, line 412 References: drivers/iommu/amd/iommu.c, line 1824 drivers/iommu/amd/iommu.c, line 1828 drivers/iommu/amd/iommu.c, line 1832 drivers/iommu/apple-dart.c, line 799 drivers/iommu/apple-dart.c, line 805 drivers/iommu/apple-dart.c, line 807 drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c, line 3722 drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c, line 3729 drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c, line 3735 drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c, line 3744 drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c, line 3748 drivers/iommu/arm/arm-smmu/arm-smmu.c, line 2029 drivers/iommu/arm/arm-smmu/arm-smmu.c, line 2035 drivers/iommu/arm/arm-smmu/arm-smmu.c, line 2042 drivers/iommu/arm/arm-smmu/arm-smmu.c, line 2049 drivers/iommu/arm/arm-smmu/arm-smmu.c, line 2058 drivers/iommu/arm/arm-smmu/arm-smmu.c, line 2062 drivers/iommu/arm/arm-smmu/arm-smmu.c, line 2065 drivers/iommu/arm/arm-smmu/qcom_iommu.c, line 846 drivers/iommu/arm/arm-smmu/qcom_iommu.c, line 861 drivers/iommu/exynos-iommu.c, line 1357 drivers/iommu/intel/iommu.c, line 4391 drivers/iommu/iommu.c, line 1878 drivers/iommu/iommu.c, line 1899 drivers/iommu/ipmmu-vmsa.c, line 1064 drivers/iommu/ipmmu-vmsa.c, line 1161 drivers/iommu/msm_iommu.c, line 800 drivers/iommu/mtk_iommu.c, line 891 drivers/iommu/mtk_iommu.c, line 902 drivers/iommu/mtk_iommu.c, line 923 drivers/iommu/mtk_iommu_v1.c, line 622 drivers/iommu/mtk_iommu_v1.c, line 633 drivers/iommu/mtk_iommu_v1.c, line 649 drivers/iommu/omap-iommu.c, line 1777 drivers/iommu/rockchip-iommu.c, line 1301 drivers/iommu/s390-iommu.c, line 380 drivers/iommu/sprd-iommu.c, line 509 drivers/iommu/sprd-iommu.c, line 546 drivers/iommu/sun50i-iommu.c, line 969 drivers/iommu/tegra-smmu.c, line 1152 drivers/iommu/tegra-smmu.c, line 1157 drivers/iommu/tegra-smmu.c, line 1168 drivers/iommu/virtio-iommu.c, line 1075 drivers/iommu/virtio-iommu.c, line 1082 drivers/iommu/virtio-iommu.c, line 1088 include/linux/iommu.h, line 412