473 	unsigned long minsz;  in vfio_ccw_mdev_ioctl()  local
480 		minsz = offsetofend(struct vfio_device_info, num_irqs);  in vfio_ccw_mdev_ioctl()
482 		if (copy_from_user(&info, (void __user *)arg, minsz))  in vfio_ccw_mdev_ioctl()
485 		if (info.argsz < minsz)  in vfio_ccw_mdev_ioctl()
492 		return copy_to_user((void __user *)arg, &info, minsz) ? -EFAULT : 0;  in vfio_ccw_mdev_ioctl()
498 		minsz = offsetofend(struct vfio_region_info, offset);  in vfio_ccw_mdev_ioctl()
500 		if (copy_from_user(&info, (void __user *)arg, minsz))  in vfio_ccw_mdev_ioctl()
503 		if (info.argsz < minsz)  in vfio_ccw_mdev_ioctl()
510 		return copy_to_user((void __user *)arg, &info, minsz) ? -EFAULT : 0;  in vfio_ccw_mdev_ioctl()
516 		minsz = offsetofend(struct vfio_irq_info, count);  in vfio_ccw_mdev_ioctl()
518 		if (copy_from_user(&info, (void __user *)arg, minsz))  in vfio_ccw_mdev_ioctl()
521 		if (info.argsz < minsz || info.index >= VFIO_CCW_NUM_IRQS)  in vfio_ccw_mdev_ioctl()
531 		return copy_to_user((void __user *)arg, &info, minsz) ? -EFAULT : 0;  in vfio_ccw_mdev_ioctl()
539 		minsz = offsetofend(struct vfio_irq_set, count);  in vfio_ccw_mdev_ioctl()
541 		if (copy_from_user(&hdr, (void __user *)arg, minsz))  in vfio_ccw_mdev_ioctl()
550 		data = (void __user *)(arg + minsz);  in vfio_ccw_mdev_ioctl()