1880 				    struct tcp_zerocopy_receive *zc, int inq,  in receive_fallback_to_copy()  argument
1895 				  inq, &iov, &msg.msg_iter);  in receive_fallback_to_copy()
1899 	err = tcp_recvmsg_locked(sk, &msg, inq, MSG_DONTWAIT,  in receive_fallback_to_copy()
2116 	int inq = tcp_inq(sk);  in tcp_zerocopy_receive()  local
2131 	if (inq && inq <= copybuf_len)  in tcp_zerocopy_receive()
2132 		return receive_fallback_to_copy(sk, zc, inq, tss);  in tcp_zerocopy_receive()
2134 	if (inq < PAGE_SIZE) {  in tcp_zerocopy_receive()
2136 		zc->recv_skip_hint = inq;  in tcp_zerocopy_receive()
2137 		if (!inq && sock_flag(sk, SOCK_DONE))  in tcp_zerocopy_receive()
2147 	avail_len = min_t(u32, vma_len, inq);  in tcp_zerocopy_receive()
2317 	int inq;  in tcp_inq_hint()  local
2319 	inq = rcv_nxt - copied_seq;  in tcp_inq_hint()
2320 	if (unlikely(inq < 0 || copied_seq != READ_ONCE(tp->copied_seq))) {  in tcp_inq_hint()
2322 		inq = tp->rcv_nxt - tp->copied_seq;  in tcp_inq_hint()
2328 	if (inq == 0 && sock_flag(sk, SOCK_DONE))  in tcp_inq_hint()
2329 		inq = 1;  in tcp_inq_hint()
2330 	return inq;  in tcp_inq_hint()
4293 		case offsetofend(struct tcp_zerocopy_receive, inq):  in do_tcp_getsockopt()
4308 		zc.inq = tcp_inq_hint(sk);  in do_tcp_getsockopt()