From ad7eee98bef92481581060801bdfd1b25a6106c0 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Tue, 10 Jul 2012 06:18:44 +0000
Subject: [PATCH] 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>
---
include/linux/etherdevice.h | 11 +++++++++++
1 file changed, 11 insertions(+)
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
@@ -137,6 +137,17 @@ static inline void random_ether_addr(u8 *addr)
addr [0] |= 0x02; /* set local assignment bit (IEEE802) */
}
+/**
+ * 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
--
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