From 775e20c159f51d01368bb82f95ba33695d7fa443 Mon Sep 17 00:00:00 2001
From: Gleb Smirnoff <glebius@FreeBSD.org>
Date: Mon, 3 Oct 2022 21:11:17 -0700
Subject: [PATCH] tcp: make tcp_drop_syn_sent() static

---
 sys/netinet/tcp_subr.c | 3 ++-
 sys/netinet/tcp_var.h  | 2 --
 2 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/sys/netinet/tcp_subr.c b/sys/netinet/tcp_subr.c
index 5bbea0176303..1e47b7896e6e 100644
--- a/sys/netinet/tcp_subr.c
+++ b/sys/netinet/tcp_subr.c
@@ -373,6 +373,7 @@ static int	tcp_default_handoff_ok(struct tcpcb *tp);
 static struct inpcb *tcp_notify(struct inpcb *, int);
 static struct inpcb *tcp_mtudisc_notify(struct inpcb *, int);
 static struct inpcb *tcp_mtudisc(struct inpcb *, int);
+static struct inpcb *tcp_drop_syn_sent(struct inpcb *, int);
 static char *	tcp_log_addr(struct in_conninfo *inc, struct tcphdr *th,
 		    const void *ip4hdr, const void *ip6hdr);
 static ipproto_ctlinput_t	tcp_ctlinput;
@@ -3331,7 +3332,7 @@ tcp_new_isn(struct in_conninfo *inc)
  * connection state is SYN-SENT, drop the connection.  This behavior
  * is controlled by the icmp_may_rst sysctl.
  */
-struct inpcb *
+static struct inpcb *
 tcp_drop_syn_sent(struct inpcb *inp, int errno)
 {
 	struct tcpcb *tp;
diff --git a/sys/netinet/tcp_var.h b/sys/netinet/tcp_var.h
index ec6818648746..3eebbefd9b7f 100644
--- a/sys/netinet/tcp_var.h
+++ b/sys/netinet/tcp_var.h
@@ -1170,8 +1170,6 @@ void	 tcp_mss_update(struct tcpcb *, int, int, struct hc_metrics_lite *,
 	    struct tcp_ifcap *);
 void	 tcp_mss(struct tcpcb *, int);
 int	 tcp_mssopt(struct in_conninfo *);
-struct inpcb *
-	 tcp_drop_syn_sent(struct inpcb *, int);
 struct tcpcb *
 	 tcp_newtcpcb(struct inpcb *);
 int	 tcp_default_output(struct tcpcb *);