Bluetooth: 6lowpan: Remove unnecessary peer lookup

During chan_recv_cb there is already a peer lookup which can be passed
to recv_pkt directly instead of the channel.

Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Acked-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

1 files changed, 4 insertions, 11 deletions

diff --git a/net/bluetooth/6lowpan.c b/net/bluetooth/6lowpan.c
index b39da8d36aa9..2063e96bc006 100644
--- a/net/bluetooth/6lowpan.c
+++ b/net/bluetooth/6lowpan.c
@@ -269,27 +269,20 @@ static int give_skb_to_upper(struct sk_buff *skb, struct net_device *dev)
 }
 
 static int iphc_decompress(struct sk_buff *skb, struct net_device *netdev,
-                           struct l2cap_chan *chan)
+                           struct lowpan_peer *peer)
 {
         const u8 *saddr;
         struct lowpan_btle_dev *dev;
-        struct lowpan_peer *peer;
 
         dev = lowpan_btle_dev(netdev);
 
-        rcu_read_lock();
-        peer = __peer_lookup_chan(dev, chan);
-        rcu_read_unlock();
-        if (!peer)
-                return -EINVAL;
-
         saddr = peer->lladdr;
 
         return lowpan_header_decompress(skb, netdev, netdev->dev_addr, saddr);
 }
 
 static int recv_pkt(struct sk_buff *skb, struct net_device *dev,
-                    struct l2cap_chan *chan)
+                    struct lowpan_peer *peer)
 {
         struct sk_buff *local_skb;
         int ret;
@@ -342,7 +335,7 @@ static int recv_pkt(struct sk_buff *skb, struct net_device *dev,
 
                 local_skb->dev = dev;
 
-                ret = iphc_decompress(local_skb, dev, chan);
+                ret = iphc_decompress(local_skb, dev, peer);
                 if (ret < 0) {
                         kfree_skb(local_skb);
                         goto drop;
@@ -388,7 +381,7 @@ static int chan_recv_cb(struct l2cap_chan *chan, struct sk_buff *skb)
         if (!dev || !dev->netdev)
                 return -ENOENT;
 
-        err = recv_pkt(skb, dev->netdev, chan);
+        err = recv_pkt(skb, dev->netdev, peer);
         if (err) {
                 BT_DBG("recv pkt %d", err);
                 err = -EAGAIN;