From a9bf6d57fde5aa07b4268b6ec1b752fbc5ea2c1d Mon Sep 17 00:00:00 2001
From: kn <kn@openbsd.org>
Date: Sat, 12 Nov 2022 16:36:07 +0000
Subject: [PATCH] Remove unused fields from struct in6_ifextra

This is all under _KERNEL:
- rs_lhcookie was added in 2014 110585f259f4974284e531f0a1e121b001a580dc
  "Move sending of router solicitations to the kernel; [...]"
  but never used
- nprefixes and ndefrouters became obsolete with 2017
  4a2f474d14c160dc7829cce0149ead09d473ece9
  "Remove sending of router solicitations and processing of router
   advertisements from the kernel. [...]"

OK mpi
---
 sys/netinet6/in6.c     | 4 +---
 sys/netinet6/in6_var.h | 5 +----
 2 files changed, 2 insertions(+), 7 deletions(-)

diff --git a/sys/netinet6/in6.c b/sys/netinet6/in6.c
index 900456fff1a..3805c070fe8 100644
--- a/sys/netinet6/in6.c
+++ b/sys/netinet6/in6.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: in6.c,v 1.249 2022/09/08 10:22:06 kn Exp $	*/
+/*	$OpenBSD: in6.c,v 1.250 2022/11/12 16:36:07 kn Exp $	*/
 /*	$KAME: in6.c,v 1.372 2004/06/14 08:14:21 itojun Exp $	*/
 
 /*
@@ -1602,8 +1602,6 @@ in6_domifattach(struct ifnet *ifp)
 	ext = malloc(sizeof(*ext), M_IFADDR, M_WAITOK | M_ZERO);
 
 	ext->nd_ifinfo = nd6_ifattach(ifp);
-	ext->nprefixes = 0;
-	ext->ndefrouters = 0;
 	return ext;
 }
 
diff --git a/sys/netinet6/in6_var.h b/sys/netinet6/in6_var.h
index 704cd09369f..c2ce99e08ec 100644
--- a/sys/netinet6/in6_var.h
+++ b/sys/netinet6/in6_var.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: in6_var.h,v 1.74 2022/01/02 22:36:04 jsg Exp $	*/
+/*	$OpenBSD: in6_var.h,v 1.75 2022/11/12 16:36:07 kn Exp $	*/
 /*	$KAME: in6_var.h,v 1.55 2001/02/16 12:49:45 itojun Exp $	*/
 
 /*
@@ -90,9 +90,6 @@ struct in6_addrlifetime {
 struct nd_ifinfo;
 struct in6_ifextra {
 	struct nd_ifinfo *nd_ifinfo;
-	void *rs_lhcookie;
-	int nprefixes;
-	int ndefrouters;
 };
 
 struct	in6_ifaddr {
-- 
2.20.1