uifr             3257 net/socket.c   	struct ifreq __user *uifr;
uifr             3270 net/socket.c   	uifr = compat_alloc_user_space(sizeof(*uifr));
uifr             3271 net/socket.c   	if (copy_in_user(uifr, uifr32, sizeof(*uifr32)))
uifr             3274 net/socket.c   	err = sock_do_ioctl(net, sock, cmd, (unsigned long)uifr);
uifr             3293 net/socket.c   			if (copy_in_user(uifr32, uifr, sizeof(*uifr32)))