From e448ff6f0e8035c3dd5b7bd0872f3f0d91c4e0d0 Mon Sep 17 00:00:00 2001
From: "Bjoern A. Zeeb" <bz@FreeBSD.org>
Date: Mon, 13 Dec 2021 22:10:25 +0000
Subject: rc: network.subr improve network6_getladdr()

In network6_getladdr() we are iterating over inet6 lines and are not
interested in any others.  So tell ifconfig to limit output to "inet6"
as much as possible.
This is probably a micro-optimisation but was noticed while looking
at other IPv6-related boot-time improvements.

MFC after:	1 week
---
 libexec/rc/network.subr | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'libexec/rc/network.subr')

diff --git a/libexec/rc/network.subr b/libexec/rc/network.subr
index 808e48532a13..2475841ffb40 100644
--- a/libexec/rc/network.subr
+++ b/libexec/rc/network.subr
@@ -1746,7 +1746,7 @@ network6_getladdr()
 	_if=$1
 	_flag=$2
 
-	${IFCONFIG_CMD} $_if 2>/dev/null | while read proto addr rest; do
+	${IFCONFIG_CMD} $_if inet6 2>/dev/null | while read proto addr rest; do
 		case "${proto}/${addr}/${_flag}/${rest}" in
 		inet6/fe80::*//*)
 			echo ${addr}
-- 
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