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authorJohannes Berg <johannes.berg@intel.com>2012-07-10 10:18:44 +0400
committerDavid S. Miller <davem@davemloft.net>2012-07-11 05:06:44 +0400
commitad7eee98bef92481581060801bdfd1b25a6106c0 (patch)
tree58ebce4c1f88893ac6bbb608299d896dad1e4361 /include/linux/etherdevice.h
parente044a651b9b7b1b33d8b7fdb2bb27e443f392083 (diff)
downloadlinux-ad7eee98bef92481581060801bdfd1b25a6106c0.tar.xz
etherdevice: introduce eth_broadcast_addr
A lot of code has either the memset or an inefficient copy from a static array that contains the all-ones broadcast address. Introduce eth_broadcast_addr() to fill an address with all ones, making the code clearer and allowing us to get rid of some constant arrays. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/etherdevice.h')
-rw-r--r--include/linux/etherdevice.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/etherdevice.h b/include/linux/etherdevice.h
index 3d406e0ede6d..98a27cccedfd 100644
--- a/include/linux/etherdevice.h
+++ b/include/linux/etherdevice.h
@@ -138,6 +138,17 @@ static inline void random_ether_addr(u8 *addr)
}
/**
+ * eth_broadcast_addr - Assign broadcast address
+ * @addr: Pointer to a six-byte array containing the Ethernet address
+ *
+ * Assign the broadcast address to the given address array.
+ */
+static inline void eth_broadcast_addr(u8 *addr)
+{
+ memset(addr, 0xff, ETH_ALEN);
+}
+
+/**
* eth_hw_addr_random - Generate software assigned random Ethernet and
* set device flag
* @dev: pointer to net_device structure