From e4b4cff4434985a30b8a42129149778b8968842b Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Tue, 23 Apr 2013 16:34:08 +0000
Subject: mac80211: use the original mac address for the first virtual
 interface

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

Backport of r36408

git-svn-id: svn://svn.openwrt.org/openwrt/branches/attitude_adjustment@36409 3c298f89-4303-0410-b956-a3cf2f4a3e73
---
 package/mac80211/files/lib/wifi/mac80211.sh | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/package/mac80211/files/lib/wifi/mac80211.sh b/package/mac80211/files/lib/wifi/mac80211.sh
index 90282d6547..c3fbc5017e 100644
--- a/package/mac80211/files/lib/wifi/mac80211.sh
+++ b/package/mac80211/files/lib/wifi/mac80211.sh
@@ -285,7 +285,9 @@ mac80211_generate_mac() {
 
 	local oIFS="$IFS"; IFS=":"; set -- $ref; IFS="$oIFS"
 	[ "$((0x$mask1))" -gt 0 ] && {
-		b1=$(((0x$1 | 0x2) ^ ($id << 2)))
+		b1="0x$1"
+		[ "$id" -gt 0 ] && \
+			b1=$((($b1 | 0x2) ^ (($id - 1) << 2)))
 		printf "%02x:%s:%s:%s:%s:%s" $b1 $2 $3 $4 $5 $6
 		return
 	}
-- 
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