bpf_skops_tx_timestamping
void bpf_skops_tx_timestamping(struct sock *sk, struct sk_buff *skb, int op);
bpf_skops_tx_timestamping(sk, skb, op);
bpf_skops_tx_timestamping(sk, skb, BPF_SOCK_OPS_TSTAMP_SENDMSG_CB);