ifr_settings
return dev_siocwandev(dev, &ifr->ifr_settings);
if (get_user(uptr32, &uifr32->ifr_settings.ifs_ifsu))
saved = ifr.ifr_settings.ifs_ifsu.raw_hdlc;
ifr.ifr_settings.ifs_ifsu.raw_hdlc = compat_ptr(uptr32);
ifr.ifr_settings.ifs_ifsu.raw_hdlc = saved;