From f93abcea1a89d98bee9448db92456ede8c35491f Mon Sep 17 00:00:00 2001
From: maxv <maxv@NetBSD.org>
Date: Fri, 9 Feb 2018 18:31:52 +0000
Subject: [PATCH] Remove dead code.

---
 sys/netinet/in.h         |  6 ++----
 sys/netinet/ip_input.c   | 13 ++-----------
 sys/netinet6/in6.h       |  6 ++----
 sys/netinet6/ip6_input.c | 12 ++----------
 4 files changed, 8 insertions(+), 29 deletions(-)

diff --git a/sys/netinet/in.h b/sys/netinet/in.h
index f76be767bab4..b26a8631bc7c 100644
--- a/sys/netinet/in.h
+++ b/sys/netinet/in.h
@@ -1,4 +1,4 @@
-/*	$NetBSD: in.h,v 1.103 2018/01/10 10:56:30 knakahara Exp $	*/
+/*	$NetBSD: in.h,v 1.104 2018/02/09 18:31:52 maxv Exp $	*/
 
 /*
  * Copyright (c) 1982, 1986, 1990, 1993
@@ -450,9 +450,7 @@ struct ip_mreq {
 #define	IPCTL_FORWARDING	1	/* act as router */
 #define	IPCTL_SENDREDIRECTS	2	/* may send redirects when forwarding */
 #define	IPCTL_DEFTTL		3	/* default TTL */
-#ifdef notyet
-#define	IPCTL_DEFMTU		4	/* default MTU */
-#endif
+/* IPCTL_DEFMTU=4, never implemented */
 #define	IPCTL_FORWSRCRT		5	/* forward source-routed packets */
 #define	IPCTL_DIRECTEDBCAST	6	/* default broadcast behavior */
 #define	IPCTL_ALLOWSRCRT	7	/* allow/drop all source-routed pkts */
diff --git a/sys/netinet/ip_input.c b/sys/netinet/ip_input.c
index 427ab73585b0..6878751536b8 100644
--- a/sys/netinet/ip_input.c
+++ b/sys/netinet/ip_input.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: ip_input.c,v 1.374 2018/02/07 08:12:25 maxv Exp $	*/
+/*	$NetBSD: ip_input.c,v 1.375 2018/02/09 18:31:52 maxv Exp $	*/
 
 /*
  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
@@ -91,7 +91,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: ip_input.c,v 1.374 2018/02/07 08:12:25 maxv Exp $");
+__KERNEL_RCSID(0, "$NetBSD: ip_input.c,v 1.375 2018/02/09 18:31:52 maxv Exp $");
 
 #ifdef _KERNEL_OPT
 #include "opt_inet.h"
@@ -1640,15 +1640,6 @@ sysctl_net_inet_ip_setup(struct sysctllog **clog)
 		       NULL, 0, &ip_defttl, 0,
 		       CTL_NET, PF_INET, IPPROTO_IP,
 		       IPCTL_DEFTTL, CTL_EOL);
-#ifdef IPCTL_DEFMTU
-	sysctl_createv(clog, 0, NULL, NULL,
-		       CTLFLAG_PERMANENT /* |CTLFLAG_READWRITE? */,
-		       CTLTYPE_INT, "mtu",
-		       SYSCTL_DESCR("Default MTA for an INET route"),
-		       NULL, 0, &ip_mtu, 0,
-		       CTL_NET, PF_INET, IPPROTO_IP,
-		       IPCTL_DEFMTU, CTL_EOL);
-#endif /* IPCTL_DEFMTU */
 	sysctl_createv(clog, 0, NULL, NULL,
 		       CTLFLAG_PERMANENT|CTLFLAG_READWRITE,
 		       CTLTYPE_INT, "forwsrcrt",
diff --git a/sys/netinet6/in6.h b/sys/netinet6/in6.h
index 2d568e4a75de..b493cc1b3fd9 100644
--- a/sys/netinet6/in6.h
+++ b/sys/netinet6/in6.h
@@ -1,4 +1,4 @@
-/*	$NetBSD: in6.h,v 1.89 2018/01/30 15:54:02 maxv Exp $	*/
+/*	$NetBSD: in6.h,v 1.90 2018/02/09 18:31:52 maxv Exp $	*/
 /*	$KAME: in6.h,v 1.83 2001/03/29 02:55:07 jinmei Exp $	*/
 
 /*
@@ -546,9 +546,7 @@ struct ip6_mtuinfo {
 #define IPV6CTL_FORWARDING	1	/* act as router */
 #define IPV6CTL_SENDREDIRECTS	2	/* may send redirects when forwarding*/
 #define IPV6CTL_DEFHLIM		3	/* default Hop-Limit */
-#ifdef notyet
-#define IPV6CTL_DEFMTU		4	/* default MTU */
-#endif
+/* IPV6CTL_DEFMTU=4, never implemented */
 #define IPV6CTL_FORWSRCRT	5	/* forward source-routed dgrams */
 #define IPV6CTL_STATS		6	/* stats */
 #define IPV6CTL_MRTSTATS	7	/* multicast forwarding stats */
diff --git a/sys/netinet6/ip6_input.c b/sys/netinet6/ip6_input.c
index dfedbad14c42..416d4496cf2c 100644
--- a/sys/netinet6/ip6_input.c
+++ b/sys/netinet6/ip6_input.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: ip6_input.c,v 1.189 2018/01/30 15:54:02 maxv Exp $	*/
+/*	$NetBSD: ip6_input.c,v 1.190 2018/02/09 18:31:52 maxv Exp $	*/
 /*	$KAME: ip6_input.c,v 1.188 2001/03/29 05:34:31 itojun Exp $	*/
 
 /*
@@ -62,7 +62,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: ip6_input.c,v 1.189 2018/01/30 15:54:02 maxv Exp $");
+__KERNEL_RCSID(0, "$NetBSD: ip6_input.c,v 1.190 2018/02/09 18:31:52 maxv Exp $");
 
 #ifdef _KERNEL_OPT
 #include "opt_gateway.h"
@@ -1601,14 +1601,6 @@ sysctl_net_inet6_ip6_setup(struct sysctllog **clog)
 		       NULL, 0, &ip6_defhlim, 0,
 		       CTL_NET, PF_INET6, IPPROTO_IPV6,
 		       IPV6CTL_DEFHLIM, CTL_EOL);
-#ifdef notyet
-	sysctl_createv(clog, 0, NULL, NULL,
-		       CTLFLAG_PERMANENT|CTLFLAG_READWRITE,
-		       CTLTYPE_INT, "mtu", NULL,
-		       NULL, 0, &, 0,
-		       CTL_NET, PF_INET6, IPPROTO_IPV6,
-		       IPV6CTL_DEFMTU, CTL_EOL);
-#endif
 	sysctl_createv(clog, 0, NULL, NULL,
 		       CTLFLAG_PERMANENT|CTLFLAG_READWRITE,
 		       CTLTYPE_INT, "maxfragpackets",