Lines Matching refs:fo
3777 struct tcp_fastopen_request *fo = tp->fastopen_req;
3782 if (!tcp_fastopen_cookie_check(sk, &tp->rx_opt.mss_clamp, &fo->cookie))
3796 space = min_t(size_t, space, fo->size);
3808 &fo->data->msg_iter);
3818 skb_zcopy_set(syn_data, fo->uarg, NULL);
3821 if (space == fo->size)
3822 fo->data = NULL;
3823 fo->copied = space;
3841 tp->syn_data = (fo->copied > 0);
3853 if (fo->cookie.len > 0)
3854 fo->cookie.len = 0;
3859 fo->cookie.len = -1; /* Exclude Fast Open option for SYN retries */