From: Johannes Berg <johannes.berg@xxxxxxxxx>
A lot of code has either the memset or an
inefficient copy from a static array that
contains the all-ones broadcast address.
Introduce broadcast_ether_addr() to fill
an address with all ones, making the code
clearer and allowing us to get rid of the
various constant arrays.
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
---
include/linux/etherdevice.h | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/include/linux/etherdevice.h b/include/linux/etherdevice.h
index 3d406e0..6da05bb 100644
--- a/include/linux/etherdevice.h
+++ b/include/linux/etherdevice.h
@@ -138,6 +138,17 @@ static inline void random_ether_addr(u8 *addr)
}
/**
+ * broadcast_ether_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 broadcast_ether_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
--
1.7.10
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