Symbol: tcp_has_tx_tstamp
net/ipv4/tcp_output.c
1808
if (unlikely(tcp_has_tx_tstamp(skb)) &&
net/ipv4/tcp_output.c
2599
if (tcp_has_tx_tstamp(skb) || !tcp_skb_can_collapse(skb, next))
net/ipv4/tcp_output.c
3438
if (unlikely(tcp_has_tx_tstamp(next_skb))) {