This patch moves some trivial checks at first before calling skb_share_check which could do some memcpy if the buffer is shared. Reviewed-by: Stefan Schmidt <stefan@xxxxxxxxxxxxxxx> Signed-off-by: Alexander Aring <alex.aring@xxxxxxxxx> --- net/ieee802154/6lowpan/rx.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/net/ieee802154/6lowpan/rx.c b/net/ieee802154/6lowpan/rx.c index 4ddf694..74d8fec 100644 --- a/net/ieee802154/6lowpan/rx.c +++ b/net/ieee802154/6lowpan/rx.c @@ -63,7 +63,8 @@ static int lowpan_rcv(struct sk_buff *skb, struct net_device *wdev, struct net_device *ldev; int ret; - if (wdev->type != ARPHRD_IEEE802154) + if (wdev->type != ARPHRD_IEEE802154 || + skb->pkt_type == PACKET_OTHERHOST) goto drop; ldev = wdev->ieee802154_ptr->lowpan_dev; @@ -74,9 +75,6 @@ static int lowpan_rcv(struct sk_buff *skb, struct net_device *wdev, if (!skb) goto drop; - if (skb->pkt_type == PACKET_OTHERHOST) - goto drop_skb; - if (ieee802154_hdr_peek_addrs(skb, &hdr) < 0) goto drop_skb; -- 2.5.0 -- To unsubscribe from this list: send the line "unsubscribe linux-wpan" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
