1778 	icsk->icsk_mtup.probe_size = 0;  in tcp_mtup_init()
2303 		icsk->icsk_mtup.probe_size = 0;  in tcp_mtu_check_reprobe()
2335 			     int probe_size)  in tcp_clone_payload()  argument
2341 	if (!sk_wmem_schedule(sk, to->truesize + probe_size))  in tcp_clone_payload()
2351 			if (len >= probe_size)  in tcp_clone_payload()
2354 				     probe_size - len);  in tcp_clone_payload()
2373 	WARN_ON_ONCE(len != probe_size);  in tcp_clone_payload()
2378 	to->truesize += probe_size;  in tcp_clone_payload()
2379 	to->len += probe_size;  in tcp_clone_payload()
2380 	to->data_len += probe_size;  in tcp_clone_payload()
2400 	int probe_size;  in tcp_mtu_probe()  local
2412 		   icsk->icsk_mtup.probe_size ||  in tcp_mtu_probe()
2423 	probe_size = tcp_mtu_to_mss(sk, (icsk->icsk_mtup.search_high +  in tcp_mtu_probe()
2425 	size_needed = probe_size + (tp->reordering + 1) * tp->mss_cache;  in tcp_mtu_probe()
2431 	if (probe_size > tcp_mtu_to_mss(sk, icsk->icsk_mtup.search_high) ||  in tcp_mtu_probe()
2457 	if (!tcp_can_coalesce_send_queue_head(sk, probe_size))  in tcp_mtu_probe()
2466 	if (tcp_clone_payload(sk, nskb, probe_size)) {  in tcp_mtu_probe()
2479 	TCP_SKB_CB(nskb)->end_seq = TCP_SKB_CB(skb)->seq + probe_size;  in tcp_mtu_probe()
2487 		copy = min_t(int, skb->len, probe_size - len);  in tcp_mtu_probe()
2510 		if (len >= probe_size)  in tcp_mtu_probe()
2524 		icsk->icsk_mtup.probe_size = tcp_mss_to_mtu(sk, nskb->len);  in tcp_mtu_probe()
3268 	if (icsk->icsk_mtup.probe_size)  in __tcp_retransmit_skb()
3269 		icsk->icsk_mtup.probe_size = 0;  in __tcp_retransmit_skb()