Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu

[karo-tx-linux.git] / net / ieee802154 / 6lowpan / rx.c

diff --git a/net/ieee802154/6lowpan/rx.c b/net/ieee802154/6lowpan/rx.c
index 65d55e05516c02310dfcf277d5024f2f3f0727d1..ef185dd4110d74e44139e96dd6fdeec26aafb5fd 100644 (file)
--- a/net/ieee802154/6lowpan/rx.c
+++ b/net/ieee802154/6lowpan/rx.c
@@ -90,36 +90,12 @@ static lowpan_rx_result lowpan_rx_h_frag(struct sk_buff *skb)
 
 int lowpan_iphc_decompress(struct sk_buff *skb)
 {
-       struct ieee802154_addr_sa sa, da;
        struct ieee802154_hdr hdr;
-       u8 iphc0, iphc1;
-       void *sap, *dap;
 
        if (ieee802154_hdr_peek_addrs(skb, &hdr) < 0)
                return -EINVAL;
 
-       raw_dump_table(__func__, "raw skb data dump", skb->data, skb->len);
-
-       if (lowpan_fetch_skb_u8(skb, &iphc0) ||
-           lowpan_fetch_skb_u8(skb, &iphc1))
-               return -EINVAL;
-
-       ieee802154_addr_to_sa(&sa, &hdr.source);
-       ieee802154_addr_to_sa(&da, &hdr.dest);
-
-       if (sa.addr_type == IEEE802154_ADDR_SHORT)
-               sap = &sa.short_addr;
-       else
-               sap = &sa.hwaddr;
-
-       if (da.addr_type == IEEE802154_ADDR_SHORT)
-               dap = &da.short_addr;
-       else
-               dap = &da.hwaddr;
-
-       return lowpan_header_decompress(skb, skb->dev, sap, sa.addr_type,
-                                       IEEE802154_ADDR_LEN, dap, da.addr_type,
-                                       IEEE802154_ADDR_LEN, iphc0, iphc1);
+       return lowpan_header_decompress(skb, skb->dev, &hdr.dest, &hdr.source);
 }
 
 static lowpan_rx_result lowpan_rx_h_iphc(struct sk_buff *skb)
@@ -308,16 +284,16 @@ static int lowpan_rcv(struct sk_buff *skb, struct net_device *wdev,
        if (wdev->type != ARPHRD_IEEE802154 ||
            skb->pkt_type == PACKET_OTHERHOST ||
            !lowpan_rx_h_check(skb))
-               return NET_RX_DROP;
+               goto drop;
 
        ldev = wdev->ieee802154_ptr->lowpan_dev;
        if (!ldev || !netif_running(ldev))
-               return NET_RX_DROP;
+               goto drop;
 
        /* Replacing skb->dev and followed rx handlers will manipulate skb. */
        skb = skb_share_check(skb, GFP_ATOMIC);
        if (!skb)
-               return NET_RX_DROP;
+               goto out;
        skb->dev = ldev;
 
        /* When receive frag1 it's likely that we manipulate the buffer.
@@ -328,10 +304,15 @@ static int lowpan_rcv(struct sk_buff *skb, struct net_device *wdev,
            lowpan_is_iphc(*skb_network_header(skb))) {
                skb = skb_unshare(skb, GFP_ATOMIC);
                if (!skb)
-                       return NET_RX_DROP;
+                       goto out;
        }
 
        return lowpan_invoke_rx_handlers(skb);
+
+drop:
+       kfree_skb(skb);
+out:
+       return NET_RX_DROP;
 }
 
 static struct packet_type lowpan_packet_type = {