* dev_ioctl - network device ioctl
* @net: the applicable net namespace
* @cmd: command to issue
- * @arg: pointer to a struct ifreq in user space
+ * @ifr: pointer to a struct ifreq in user space
+ * @need_copyout: whether or not copy_to_user() should be called
*
* Issue ioctl functions to devices. This is normally called by the
* user space syscall interfaces but can sometimes be useful for