Symbol: TCP_SYNACK_FASTOPEN
net/ipv4/tcp_input.c
7780
&foc, TCP_SYNACK_FASTOPEN, skb);
net/ipv4/tcp_output.c
3967
case TCP_SYNACK_FASTOPEN:
net/mptcp/subflow.c
354
if (synack_type == TCP_SYNACK_FASTOPEN)