From 51e7eed79c41180919ff94942895ba38467d9ad4 Mon Sep 17 00:00:00 2001
From: Tobias Klauser <tklauser@distanz.ch>
Date: Wed, 12 Jan 2011 22:14:56 +0000
Subject: etherdevice.h: Add is_unicast_ether_addr function
From a check for !is_multicast_ether_addr it is not always obvious that
we're checking for a unicast address. So add this helper function to
make those code paths easier to read.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: Chris Metcalf <cmetcalf@tilera.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/etherdevice.h | 11 +++++++++++
1 file changed, 11 insertions(+)
(limited to 'include/linux/etherdevice.h')
diff --git a/include/linux/etherdevice.h b/include/linux/etherdevice.h
index bec8b82889bf..ab68f785fd19 100644
--- a/include/linux/etherdevice.h
+++ b/include/linux/etherdevice.h
@@ -98,6 +98,17 @@ static inline int is_broadcast_ether_addr(const u8 *addr)
return (addr[0] & addr[1] & addr[2] & addr[3] & addr[4] & addr[5]) == 0xff;
}
+/**
+ * is_unicast_ether_addr - Determine if the Ethernet address is unicast
+ * @addr: Pointer to a six-byte array containing the Ethernet address
+ *
+ * Return true if the address is a unicast address.
+ */
+static inline int is_unicast_ether_addr(const u8 *addr)
+{
+ return !is_multicast_ether_addr(addr);
+}
+
/**
* is_valid_ether_addr - Determine if the given Ethernet address is valid
* @addr: Pointer to a six-byte array containing the Ethernet address
--
cgit v1.2.3-70-g09d2