From e119a8a107ed0fe0f3f9817566959fc95b027a05 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Tue, 23 Apr 2013 16:32:24 +0000
Subject: [PATCH] mac80211: use the original mac address for the first virtual
 interface

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

SVN-Revision: 36408
---
 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 bb97211428..081dc4d886 100644
--- a/package/mac80211/files/lib/wifi/mac80211.sh
+++ b/package/mac80211/files/lib/wifi/mac80211.sh
@@ -282,7 +282,9 @@ 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
 	}