diff options
| author | Gleb Smirnoff <glebius@FreeBSD.org> | 2024-11-21 00:35:59 +0000 |
|---|---|---|
| committer | Gleb Smirnoff <glebius@FreeBSD.org> | 2024-11-21 00:37:24 +0000 |
| commit | 3789810845f14102c88ca31f7dccb18621b960a0 (patch) | |
| tree | 5a0a77c75a56b6f674e9ac83e66e7005f54099b3 | |
| parent | 2944a888eabffd4db47dde0f30aa0f5061460f56 (diff) | |
tcp: avoid bcopy() in tcp_mss_update()
| -rw-r--r-- | sys/netinet/tcp_input.c | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/sys/netinet/tcp_input.c b/sys/netinet/tcp_input.c index f9ecdf93cc47..03d493b1d7a9 100644 --- a/sys/netinet/tcp_input.c +++ b/sys/netinet/tcp_input.c @@ -3877,19 +3877,16 @@ tcp_mss_update(struct tcpcb *tp, int offer, int mtuoffer, offer = max(offer, V_tcp_minmss); } - /* - * rmx information is now retrieved from tcp_hostcache. - */ - tcp_hc_get(&inp->inp_inc, &metrics); - if (metricptr != NULL) - bcopy(&metrics, metricptr, sizeof(struct hc_metrics_lite)); + if (metricptr == NULL) + metricptr = &metrics; + tcp_hc_get(&inp->inp_inc, metricptr); /* * If there's a discovered mtu in tcp hostcache, use it. * Else, use the link mtu. */ - if (metrics.hc_mtu) - mss = min(metrics.hc_mtu, maxmtu) - min_protoh; + if (metricptr->hc_mtu) + mss = min(metricptr->hc_mtu, maxmtu) - min_protoh; else { #ifdef INET6 if (isipv6) { |