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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>
This commit is contained in:
Alexander Aring 2015-10-20 08:31:23 +02:00 committed by Marcel Holtmann
parent 6350047eb8
commit 028b2a8c16
2 changed files with 1 additions and 11 deletions
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10
include/net/6lowpan.h
View File

@ -74,16 +74,6 @@
LOWPAN_IPHC_MAX_HEADER_LEN + \ LOWPAN_IPHC_MAX_HEADER_LEN + \
LOWPAN_NHC_MAX_HDR_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_IPV6 0x41 /* 01000001 = 65 */
#define LOWPAN_DISPATCH_IPHC 0x60 /* 011xxxxx = ... */ #define LOWPAN_DISPATCH_IPHC 0x60 /* 011xxxxx = ... */
#define LOWPAN_DISPATCH_IPHC_MASK 0xe0 #define LOWPAN_DISPATCH_IPHC_MASK 0xe0

2
net/ieee802154/6lowpan/tx.c
View File

@ -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 /* if the destination address is the broadcast address, use the
* corresponding short address * 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.mode = IEEE802154_ADDR_SHORT;
da.short_addr = cpu_to_le16(IEEE802154_ADDR_BROADCAST); da.short_addr = cpu_to_le16(IEEE802154_ADDR_BROADCAST);
cb->ackreq = false; cb->ackreq = false;