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 44136297b673a2b2645f481fb723222fa97b951a..56252ee157c9b5d532e7f711551675e5d33ffacd 100644 (file)
--- 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;