Function prototype or declaration at include/linux/iommu.h, line 408 References: drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c, line 3642 drivers/iommu/arm/arm-smmu/arm-smmu.c, line 2263 drivers/iommu/arm/arm-smmu/qcom_iommu.c, line 899 drivers/iommu/fsl_pamu_domain.c, line 1107 drivers/iommu/intel/dmar.c, line 1140 drivers/iommu/intel/dmar.c, line 1154 drivers/iommu/iommu-sysfs.c, line 95 drivers/iommu/iommu-sysfs.c, line 101 drivers/iommu/ipmmu-vmsa.c, line 1068 drivers/iommu/mtk_iommu.c, line 707 drivers/iommu/mtk_iommu_v1.c, line 648 drivers/iommu/omap-iommu.c, line 1053 drivers/iommu/omap-iommu.c, line 1067 drivers/iommu/rockchip-iommu.c, line 1234 drivers/iommu/s390-iommu.c, line 345 drivers/iommu/s390-iommu.c, line 354 drivers/iommu/tegra-gart.c, line 455 drivers/iommu/tegra-gart.c, line 486 drivers/iommu/tegra-smmu.c, line 1075 drivers/iommu/tegra-smmu.c, line 1082 drivers/iommu/tegra-smmu.c, line 1095 drivers/iommu/virtio-iommu.c, line 1102 drivers/iommu/virtio-iommu.c, line 1114 include/linux/iommu.h, line 408 include/linux/iommu.h, line 976