X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=net%2Fmac802154%2Fiface.c;h=7079cd32a7ad201265cf730027dda07254e622aa;hb=7bcfeead48b6f920007ee41bc70a83b58c5ba396;hp=b5a0936ce514eaa2706a036d715ad28427a9d2ae;hpb=87a93e4eceb495f93e3f37b100334d2641765b6c;p=linux-beck.git

diff --git a/net/mac802154/iface.c b/net/mac802154/iface.c
index b5a0936ce514..7079cd32a7ad 100644
--- a/net/mac802154/iface.c
+++ b/net/mac802154/iface.c
@@ -461,7 +461,7 @@ static int mac802154_header_create(struct sk_buff *skb,
 
 	hdr.dest.pan_id = wpan_dev->pan_id;
 	hdr.dest.mode = IEEE802154_ADDR_LONG;
-	memcpy(&hdr.dest.extended_addr, daddr, IEEE802154_EXTENDED_ADDR_LEN);
+	ieee802154_be64_to_le64(&hdr.dest.extended_addr, daddr);
 
 	hdr.source.pan_id = hdr.dest.pan_id;
 	hdr.source.mode = IEEE802154_ADDR_LONG;
@@ -469,8 +469,7 @@ static int mac802154_header_create(struct sk_buff *skb,
 	if (!saddr)
 		hdr.source.extended_addr = wpan_dev->extended_addr;
 	else
-		memcpy(&hdr.source.extended_addr, saddr,
-		       IEEE802154_EXTENDED_ADDR_LEN);
+		ieee802154_be64_to_le64(&hdr.source.extended_addr, saddr);
 
 	hlen = ieee802154_hdr_push(skb, &hdr);
 	if (hlen < 0)
@@ -496,8 +495,7 @@ mac802154_header_parse(const struct sk_buff *skb, unsigned char *haddr)
 	}
 
 	if (hdr.source.mode == IEEE802154_ADDR_LONG) {
-		memcpy(haddr, &hdr.source.extended_addr,
-		       IEEE802154_EXTENDED_ADDR_LEN);
+		ieee802154_le64_to_be64(haddr, &hdr.source.extended_addr);
 		return IEEE802154_EXTENDED_ADDR_LEN;
 	}
 
@@ -549,7 +547,17 @@ static void ieee802154_if_setup(struct net_device *dev)
 	 */
 	dev->needed_tailroom	= IEEE802154_MAX_AUTH_TAG_LEN +
 				  IEEE802154_FCS_LEN;
-	dev->mtu		= IEEE802154_MTU;
+	/* The mtu size is the payload without mac header in this case.
+	 * We have a dynamic length header with a minimum header length
+	 * which is hard_header_len. In this case we let mtu to the size
+	 * of maximum payload which is IEEE802154_MTU - IEEE802154_FCS_LEN -
+	 * hard_header_len. The FCS which is set by hardware or ndo_start_xmit
+	 * and the minimum mac header which can be evaluated inside driver
+	 * layer. The rest of mac header will be part of payload if greater
+	 * than hard_header_len.
+	 */
+	dev->mtu		= IEEE802154_MTU - IEEE802154_FCS_LEN -
+				  dev->hard_header_len;
 	dev->tx_queue_len	= 300;
 	dev->flags		= IFF_NOARP | IFF_BROADCAST;
 }