SIOCGIFCONF       374 fs/compat_ioctl.c 	err = sys_ioctl (fd, SIOCGIFCONF, (unsigned long)uifc);	
SIOCGIFCONF      2539 fs/compat_ioctl.c HANDLE_IOCTL(SIOCGIFCONF, dev_ifconf)
SIOCGIFCONF      3699 net/core/dev.c 	if (cmd == SIOCGIFCONF) {