m4udev 372 drivers/iommu/mtk_iommu_v1.c struct device *m4udev; m4udev 404 drivers/iommu/mtk_iommu_v1.c m4udev = data->dev; m4udev 405 drivers/iommu/mtk_iommu_v1.c mtk_mapping = m4udev->archdata.iommu; m4udev 413 drivers/iommu/mtk_iommu_v1.c m4udev->archdata.iommu = mtk_mapping;