From 962bb116632480313c4b5094e554926968d8b946 Mon Sep 17 00:00:00 2001
From: Vasiliy Tolstov <v.tolstov@selfip.ru>
Date: Mon, 26 May 2014 15:28:43 +0400
Subject: [PATCH] network/ifup.sh: Don't try to modprobe ipv6, if already
 available

Signed-off-by: Vasiliy Tolstov <v.tolstov@selfip.ru>

[Edited-by: Harald Hoyer]
Simplified logic.

(cherry picked from commit 28f3f537c4ffb101c26def41c9a6a0278f9b4437)
---
 modules.d/40network/ifup.sh | 1 +
 1 file changed, 1 insertion(+)

diff --git a/modules.d/40network/ifup.sh b/modules.d/40network/ifup.sh
index fd84e4c..79127f2 100755
--- a/modules.d/40network/ifup.sh
+++ b/modules.d/40network/ifup.sh
@@ -106,6 +106,7 @@ do_dhcp() {
 }
 
 load_ipv6() {
+    [ -d /proc/sys/net/ipv6 ] && return
     modprobe ipv6
     i=0
     while [ ! -d /proc/sys/net/ipv6 ]; do