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>

1 files changed, 3 insertions, 0 deletions

diff --git a/net/ieee802154/6lowpan_rtnl.c b/net/ieee802154/6lowpan_rtnl.c
index 44136297b673..56252ee157c9 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;