From: Simon Vincent <simon.vincent@xsilon.com>
Date: Sun, 5 Oct 2014 18:23:12 +0000 (+0200)
Subject: ieee802154: 6lowpan: Drop PACKET_OTHERHOST skbs in 6lowpan
X-Git-Tag: v5.15~16721^2~28^2~129^2~133
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=39f6eb19cf85b08b8a926294750f5e79c50a6a7b;p=platform%2Fkernel%2Flinux-starfive.git

ieee802154: 6lowpan: Drop PACKET_OTHERHOST skbs in 6lowpan

There is no point processing pkts which are PACKET_OTHERHOST
in 6lowpan as they are discarded as soon as they reach the
ipv6 layer. Therefore we should drop them in the 6lowpan layer.

Signed-off-by: Simon Vincent <simon.vincent@xsilon.com>
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---

diff --git a/net/ieee802154/6lowpan_rtnl.c b/net/ieee802154/6lowpan_rtnl.c
index 4413629..56252ee 100644
--- a/net/ieee802154/6lowpan_rtnl.c
+++ b/net/ieee802154/6lowpan_rtnl.c
@@ -515,6 +515,9 @@ static int lowpan_rcv(struct sk_buff *skb, struct net_device *dev,
 	if (!netif_running(dev))
 		goto drop_skb;
 
+	if (skb->pkt_type == PACKET_OTHERHOST)
+		goto drop_skb;
+
 	if (dev->type != ARPHRD_IEEE802154)
 		goto drop_skb;