tcp_may_update_window 3073 net/ipv4/tcp_input.c if (tcp_may_update_window(tp, ack, ack_seq, nwin)) { tcp_may_update_window 3588 net/ipv4/tcp_input.c !tcp_may_update_window(tp, ack, seq, ntohs(th->window) << tp->rx_opt.snd_wscale) &&