780 	unsigned long minsz, ddwsz;  in tce_iommu_ioctl()  local
822 		minsz = offsetofend(struct vfio_iommu_spapr_tce_info,  in tce_iommu_ioctl()
825 		if (copy_from_user(&info, (void __user *)arg, minsz))  in tce_iommu_ioctl()
828 		if (info.argsz < minsz)  in tce_iommu_ioctl()
848 			minsz = ddwsz;  in tce_iommu_ioctl()
850 		if (copy_to_user((void __user *)arg, &info, minsz))  in tce_iommu_ioctl()
864 		minsz = offsetofend(struct vfio_iommu_type1_dma_map, size);  in tce_iommu_ioctl()
866 		if (copy_from_user(&param, (void __user *)arg, minsz))  in tce_iommu_ioctl()
869 		if (param.argsz < minsz)  in tce_iommu_ioctl()
930 		minsz = offsetofend(struct vfio_iommu_type1_dma_unmap,  in tce_iommu_ioctl()
933 		if (copy_from_user(&param, (void __user *)arg, minsz))  in tce_iommu_ioctl()
936 		if (param.argsz < minsz)  in tce_iommu_ioctl()
972 		minsz = offsetofend(struct vfio_iommu_spapr_register_memory,  in tce_iommu_ioctl()
979 		if (copy_from_user(&param, (void __user *)arg, minsz))  in tce_iommu_ioctl()
982 		if (param.argsz < minsz)  in tce_iommu_ioctl()
1005 		minsz = offsetofend(struct vfio_iommu_spapr_register_memory,  in tce_iommu_ioctl()
1008 		if (copy_from_user(&param, (void __user *)arg, minsz))  in tce_iommu_ioctl()
1011 		if (param.argsz < minsz)  in tce_iommu_ioctl()
1070 		minsz = offsetofend(struct vfio_iommu_spapr_tce_create,  in tce_iommu_ioctl()
1073 		if (copy_from_user(&create, (void __user *)arg, minsz))  in tce_iommu_ioctl()
1076 		if (create.argsz < minsz)  in tce_iommu_ioctl()
1093 		if (!ret && copy_to_user((void __user *)arg, &create, minsz))  in tce_iommu_ioctl()
1111 		minsz = offsetofend(struct vfio_iommu_spapr_tce_remove,  in tce_iommu_ioctl()
1114 		if (copy_from_user(&remove, (void __user *)arg, minsz))  in tce_iommu_ioctl()
1117 		if (remove.argsz < minsz)  in tce_iommu_ioctl()