git: 587c6c121504 - main - tcp: turn on TCP hostcache for socket buffer sizes

The branch main has been updated by glebius:

URL: https://cgit.FreeBSD.org/src/commit/?id=587c6c1215046c6204abee9829ce9df0d3814a61

commit 587c6c1215046c6204abee9829ce9df0d3814a61
Author:     Gleb Smirnoff <glebius@FreeBSD.org>
AuthorDate: 2026-09-18 21:57:52 +0000
Commit:     Gleb Smirnoff <glebius@FreeBSD.org>
CommitDate: 2026-09-18 21:57:52 +0000

    tcp: turn on TCP hostcache for socket buffer sizes
    
    The code has been there since introduction of the TCP hostcache
    in 97d8d152c28bb in 2003, but was turned off.
    
    Reviewed by:            tuexen, cc
    Differential Revision:  https://reviews.freebsd.org/D59452
---
 sys/netinet/tcp_subr.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sys/netinet/tcp_subr.c b/sys/netinet/tcp_subr.c
index f29a5c5110f6..6d3f6a88a1c9 100644
--- a/sys/netinet/tcp_subr.c
+++ b/sys/netinet/tcp_subr.c
@@ -2515,8 +2515,8 @@ tcp_discardcb(struct tcpcb *tp)
 		metrics.hc_rtt = tp->t_srtt;
 		metrics.hc_rttvar = tp->t_rttvar;
 		metrics.hc_cwnd = tp->snd_cwnd;
-		metrics.hc_sendpipe = 0;
-		metrics.hc_recvpipe = 0;
+		metrics.hc_sendpipe = so->so_snd.sb_hiwat;
+		metrics.hc_recvpipe = so->so_rcv.sb_hiwat;
 
 		tcp_hc_update(&inp->inp_inc, &metrics);
 	}