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* [PATCH] etherdevice: introduce broadcast_ether_addr
@ 2012-07-03 10:16 Johannes Berg
  2012-07-03 15:13 ` Joe Perches
  2012-07-09  6:58 ` David Miller
  0 siblings, 2 replies; 19+ messages in thread
From: Johannes Berg @ 2012-07-03 10:16 UTC (permalink / raw)
  To: netdev; +Cc: linux-wireless

From: Johannes Berg <johannes.berg@intel.com>

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@intel.com>
---
 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




^ permalink raw reply related	[flat|nested] 19+ messages in thread

end of thread, other threads:[~2012-07-17  5:39 UTC | newest]

Thread overview: 19+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2012-07-03 10:16 [PATCH] etherdevice: introduce broadcast_ether_addr Johannes Berg
2012-07-03 15:13 ` Joe Perches
2012-07-03 15:16   ` Johannes Berg
2012-07-09  6:58 ` David Miller
2012-07-10 16:18   ` [PATCH] etherdevice: introduce eth_broadcast_addr Johannes Berg
2012-07-11  0:09     ` Paul Gortmaker
2012-07-11  0:41       ` David Miller
2012-07-11  1:09         ` Joe Perches
2012-07-13  5:33           ` [PATCH net-next 0/8] etherdevice: Rename random_ether_addr to eth_random_addr Joe Perches
2012-07-13  5:33             ` [PATCH net-next 4/8] wireless: Use eth_random_addr Joe Perches
2012-07-13  5:54               ` Hin-Tak Leung
2012-07-13  7:15               ` Gertjan van Wingerde
2012-07-16 10:14             ` [PATCH net-next 0/8] etherdevice: Rename random_ether_addr to eth_random_addr Felipe Balbi
2012-07-16 10:29               ` David Miller
2012-07-16 11:12                 ` Felipe Balbi
2012-07-16 11:17                   ` David Miller
2012-07-17  5:39             ` David Miller
2012-07-11  7:27       ` [PATCH] etherdevice: introduce eth_broadcast_addr Johannes Berg
2012-07-11  1:07     ` David Miller

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