[PATCH v7 1/6] bluetooth: Set 6 byte device addresses

[Luiz Augusto von Dentz]

From: Patrik Flykt <patrik.fl...@linux.intel.com>

Set BTLE MAC addresses that are 6 bytes long and not 8 bytes
that are used in other places with 6lowpan.

Signed-off-by: Patrik Flykt <patrik.fl...@linux.intel.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.de...@intel.com>
Reviewed-by: Stefan Schmidt <ste...@osg.samsung.com>
---
 net/bluetooth/6lowpan.c | 19 ++++++++-----------
 1 file changed, 8 insertions(+), 11 deletions(-)

diff --git a/net/bluetooth/6lowpan.c b/net/bluetooth/6lowpan.c
index 1904a93..1456b01 100644
--- a/net/bluetooth/6lowpan.c
+++ b/net/bluetooth/6lowpan.c
@@ -80,6 +80,8 @@ struct lowpan_btle_dev {
        struct delayed_work notify_peers;
 };
 
+static void set_addr(u8 *eui, u8 *addr, u8 addr_type);
+
 static inline struct lowpan_btle_dev *
 lowpan_btle_dev(const struct net_device *netdev)
 {
@@ -272,9 +274,10 @@ 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)
 {
-       const u8 *saddr, *daddr;
+       const u8 *saddr;
        struct lowpan_btle_dev *dev;
        struct lowpan_peer *peer;
+       unsigned char eui64_daddr[EUI64_ADDR_LEN];
 
        dev = lowpan_btle_dev(netdev);
 
@@ -285,9 +288,9 @@ static int iphc_decompress(struct sk_buff *skb, struct 
net_device *netdev,
                return -EINVAL;
 
        saddr = peer->eui64_addr;
-       daddr = dev->netdev->dev_addr;
+       set_addr(&eui64_daddr[0], chan->src.b, chan->src_type);
 
-       return lowpan_header_decompress(skb, netdev, daddr, saddr);
+       return lowpan_header_decompress(skb, netdev, &eui64_daddr, saddr);
 }
 
 static int recv_pkt(struct sk_buff *skb, struct net_device *dev,
@@ -681,13 +684,6 @@ static void set_addr(u8 *eui, u8 *addr, u8 addr_type)
        BT_DBG("type %d addr %*phC", addr_type, 8, eui);
 }
 
-static void set_dev_addr(struct net_device *netdev, bdaddr_t *addr,
-                        u8 addr_type)
-{
-       netdev->addr_assign_type = NET_ADDR_PERM;
-       set_addr(netdev->dev_addr, addr->b, addr_type);
-}
-
 static void ifup(struct net_device *netdev)
 {
        int err;
@@ -803,7 +799,8 @@ static int setup_netdev(struct l2cap_chan *chan, struct 
lowpan_btle_dev **dev)
        if (!netdev)
                return -ENOMEM;
 
-       set_dev_addr(netdev, &chan->src, chan->src_type);
+       netdev->addr_assign_type = NET_ADDR_PERM;
+       baswap((void *)netdev->dev_addr, &chan->src);
 
        netdev->netdev_ops = &netdev_ops;
        SET_NETDEV_DEV(netdev, &chan->conn->hcon->hdev->dev);
-- 
2.9.3