605 	unsigned long minsz;  in afu_ioctl_get_info()  local
607 	minsz = offsetofend(struct dfl_fpga_port_info, num_umsgs);  in afu_ioctl_get_info()
609 	if (copy_from_user(&info, arg, minsz))  in afu_ioctl_get_info()
612 	if (info.argsz < minsz)  in afu_ioctl_get_info()
633 	unsigned long minsz;  in afu_ioctl_get_region_info()  local
636 	minsz = offsetofend(struct dfl_fpga_port_region_info, offset);  in afu_ioctl_get_region_info()
638 	if (copy_from_user(&rinfo, arg, minsz))  in afu_ioctl_get_region_info()
641 	if (rinfo.argsz < minsz || rinfo.padding)  in afu_ioctl_get_region_info()
662 	unsigned long minsz;  in afu_ioctl_dma_map()  local
665 	minsz = offsetofend(struct dfl_fpga_port_dma_map, iova);  in afu_ioctl_dma_map()
667 	if (copy_from_user(&map, arg, minsz))  in afu_ioctl_dma_map()
670 	if (map.argsz < minsz || map.flags)  in afu_ioctl_dma_map()
694 	unsigned long minsz;  in afu_ioctl_dma_unmap()  local
696 	minsz = offsetofend(struct dfl_fpga_port_dma_unmap, iova);  in afu_ioctl_dma_unmap()
698 	if (copy_from_user(&unmap, arg, minsz))  in afu_ioctl_dma_unmap()
701 	if (unmap.argsz < minsz || unmap.flags)  in afu_ioctl_dma_unmap()