From 618703b57b65a04e3ded3c01e5ea536ab65f969a Mon Sep 17 00:00:00 2001
From: Mark Johnston <markj@FreeBSD.org>
Date: Sat, 20 Oct 2018 18:00:13 +0000
Subject: [PATCH] Fix a dead store.

We would fail to clear DNS search list configuration if a router
stopped specifying the DNSSL RA option.  I suspect that the bug
was mostly harmless, as the RDNSS and DNSSL options are typically used
together and omitting the RDNSS option would have the same effect.

CID:		1006219
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
---
 usr.sbin/rtsold/rtsol.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/usr.sbin/rtsold/rtsol.c b/usr.sbin/rtsold/rtsol.c
index 04a92de35620..4d3f9be6f5ee 100644
--- a/usr.sbin/rtsold/rtsol.c
+++ b/usr.sbin/rtsold/rtsol.c
@@ -616,7 +616,6 @@ ra_opt_handler(struct ifinfo *ifi)
 				TAILQ_INSERT_TAIL(&sm_rdnss_head, smp3,
 				    sm_next);
 				ifi->ifi_rdnss = IFI_DNSOPT_STATE_RECEIVED;
-
 				break;
 			case ND_OPT_DNSSL:
 				if (TS_CMP(&now, &rao->rao_expire, >)) {
@@ -656,10 +655,7 @@ ra_opt_handler(struct ifinfo *ifi)
 				    sm_next);
 				dlen += strlen(rao->rao_msg) +
 				    strlen(resstr_sp);
-				break;
-
 				ifi->ifi_dnssl = IFI_DNSOPT_STATE_RECEIVED;
-			default:
 				break;
 			}
 			continue;