6lowpan: remove lowpan_is_addr_broadcast

This macro is used at 802.15.4 6LoWPAN only and can be replaced by
memcmp with the interface broadcast address.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

diff --git a/include/net/6lowpan.h b/include/net/6lowpan.h
index f127a92..cf3bc56 100644 (file)
--- a/include/net/6lowpan.h
+++ b/include/net/6lowpan.h
@@ -74,16 +74,6 @@
                                         LOWPAN_IPHC_MAX_HEADER_LEN +   \
                                         LOWPAN_NHC_MAX_HDR_LEN)
 
-#define lowpan_is_addr_broadcast(a)    \
-       ((((a)[0]) == 0xFF) &&  \
-        (((a)[1]) == 0xFF) &&  \
-        (((a)[2]) == 0xFF) &&  \
-        (((a)[3]) == 0xFF) &&  \
-        (((a)[4]) == 0xFF) &&  \
-        (((a)[5]) == 0xFF) &&  \
-        (((a)[6]) == 0xFF) &&  \
-        (((a)[7]) == 0xFF))
-
 #define LOWPAN_DISPATCH_IPV6           0x41 /* 01000001 = 65 */
 #define LOWPAN_DISPATCH_IPHC           0x60 /* 011xxxxx = ... */
 #define LOWPAN_DISPATCH_IPHC_MASK      0xe0

diff --git a/net/ieee802154/6lowpan/tx.c b/net/ieee802154/6lowpan/tx.c
index f6594a8..d4353fa 100644 (file)
--- a/net/ieee802154/6lowpan/tx.c
+++ b/net/ieee802154/6lowpan/tx.c
@@ -238,7 +238,7 @@ static int lowpan_header(struct sk_buff *skb, struct net_device *ldev,
        /* if the destination address is the broadcast address, use the
         * corresponding short address
         */
-       if (lowpan_is_addr_broadcast((const u8 *)daddr)) {
+       if (!memcmp(daddr, ldev->broadcast, EUI64_ADDR_LEN)) {
                da.mode = IEEE802154_ADDR_SHORT;
                da.short_addr = cpu_to_le16(IEEE802154_ADDR_BROADCAST);
                cb->ackreq = false;