From eb50a1c069c220b127aa07a55c24fb0db23bf1a7 Mon Sep 17 00:00:00 2001
From: kn <kn@openbsd.org>
Date: Mon, 28 Nov 2022 13:10:58 +0000
Subject: [PATCH] Remove useless nd6_init_done

Only ip6_init() calls nd6_init(), exactly once, just like it calls
frag6_init() which on the other hand does not have some fra6_init_done to
guard against itself.

Like all other domains, ip6_init() is called in domaininit(), early in the
kernel's main().

This variable was probably never useful and stems from nd6.c r1.1:
    bring in KAME IPv6 code, dated 19991208.

OK mvs
---
 sys/netinet6/nd6.c | 11 +----------
 1 file changed, 1 insertion(+), 10 deletions(-)

diff --git a/sys/netinet6/nd6.c b/sys/netinet6/nd6.c
index 4e9c4b9aa16..18b590aa738 100644
--- a/sys/netinet6/nd6.c
+++ b/sys/netinet6/nd6.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: nd6.c,v 1.254 2022/11/25 15:03:24 kn Exp $	*/
+/*	$OpenBSD: nd6.c,v 1.255 2022/11/28 13:10:58 kn Exp $	*/
 /*	$KAME: nd6.c,v 1.280 2002/06/08 19:52:07 itojun Exp $	*/
 
 /*
@@ -104,21 +104,12 @@ struct task nd6_expire_task;
 void
 nd6_init(void)
 {
-	static int nd6_init_done = 0;
-
-	if (nd6_init_done) {
-		log(LOG_NOTICE, "%s called more than once\n", __func__);
-		return;
-	}
-
 	TAILQ_INIT(&nd6_list);
 	pool_init(&nd6_pool, sizeof(struct llinfo_nd6), 0,
 	    IPL_SOFTNET, 0, "nd6", NULL);
 
 	task_set(&nd6_expire_task, nd6_expire, NULL);
 
-	nd6_init_done = 1;
-
 	/* start timer */
 	timeout_set_proc(&nd6_timer_to, nd6_timer, NULL);
 	timeout_set_proc(&nd6_slowtimo_ch, nd6_slowtimo, NULL);
-- 
2.20.1