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ieee802154: 6lowpan: change if lowpan dev is running

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We don't need to check if the wpan interface is running because the
lowpan_rcv is the packet layer receive handler for the wpan interface.

Instead doing a check if wpan interface is running we should check if
the lowpan interface is running before starting 6lowpan adaptation layer.

Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com>
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Alexander Aring 2015-09-02 14:21:21 +02:00 committed by Marcel Holtmann
parent 348a882ea7
commit 989d433dca
1 changed files with 6 additions and 5 deletions
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11
net/ieee802154/6lowpan/rx.c
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@ -65,19 +65,20 @@ static int lowpan_rcv(struct sk_buff *skb, struct net_device *wdev,
struct packet_type *pt, struct net_device *orig_wdev)
{
struct ieee802154_hdr hdr;
struct net_device *ldev;
int ret;
if (wdev->type != ARPHRD_IEEE802154 ||
!wdev->ieee802154_ptr->lowpan_dev)
if (wdev->type != ARPHRD_IEEE802154)
goto drop;
ldev = wdev->ieee802154_ptr->lowpan_dev;
if (!ldev || !netif_running(ldev))
goto drop;
skb = skb_share_check(skb, GFP_ATOMIC);
if (!skb)
goto drop;
if (!netif_running(wdev))
goto drop_skb;
if (skb->pkt_type == PACKET_OTHERHOST)
goto drop_skb;