393 static long copy_arg_from_user(void *karg, void __user *uarg, unsigned int cmd)  in copy_arg_from_user()  argument
395 	if ((_IOC_DIR(cmd) & _IOC_WRITE) &&  in copy_arg_from_user()
396 	    copy_from_user(karg, uarg, _IOC_SIZE(cmd)))  in copy_arg_from_user()
402 static long copy_arg_to_user(void __user *uarg, void *karg, unsigned int cmd)  in copy_arg_to_user()  argument
404 	if ((_IOC_DIR(cmd) & _IOC_READ) &&  in copy_arg_to_user()
405 	    copy_to_user(uarg, karg, _IOC_SIZE(cmd)))  in copy_arg_to_user()
416 		.cmd = MEDIA_IOC_##__cmd,				\
428 	unsigned int cmd;  member
431 	long (*arg_from_user)(void *karg, void __user *uarg, unsigned int cmd);
432 	long (*arg_to_user)(void __user *uarg, void *karg, unsigned int cmd);
444 static long media_device_ioctl(struct file *filp, unsigned int cmd,  in media_device_ioctl()  argument
454 	if (_IOC_NR(cmd) >= ARRAY_SIZE(ioctl_info)  in media_device_ioctl()
455 	    || ioctl_info[_IOC_NR(cmd)].cmd != cmd)  in media_device_ioctl()
458 	info = &ioctl_info[_IOC_NR(cmd)];  in media_device_ioctl()
460 	if (_IOC_SIZE(info->cmd) > sizeof(__karg)) {  in media_device_ioctl()
461 		karg = kmalloc(_IOC_SIZE(info->cmd), GFP_KERNEL);  in media_device_ioctl()
467 		ret = info->arg_from_user(karg, arg, cmd);  in media_device_ioctl()
481 		ret = info->arg_to_user(arg, karg, cmd);  in media_device_ioctl()
528 static long media_device_compat_ioctl(struct file *filp, unsigned int cmd,  in media_device_compat_ioctl()  argument
535 	switch (cmd) {  in media_device_compat_ioctl()
544 		return media_device_ioctl(filp, cmd, arg);  in media_device_compat_ioctl()