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authorTobias Klauser <tklauser@distanz.ch>2011-01-12 22:14:56 +0000
committerDavid S. Miller <davem@davemloft.net>2011-01-13 21:49:56 -0800
commit51e7eed79c41180919ff94942895ba38467d9ad4 (patch)
tree7779a12f1a54d0d205c0ceec14cc2c59ba581c3d /include/linux/etherdevice.h
parent5cd8a77df3e9916069787365a32918caa371fc16 (diff)
downloadlwn-51e7eed79c41180919ff94942895ba38467d9ad4.tar.gz
lwn-51e7eed79c41180919ff94942895ba38467d9ad4.zip
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>
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 bec8b82889bf..ab68f785fd19 100644
--- a/include/linux/etherdevice.h
+++ b/include/linux/etherdevice.h
@@ -99,6 +99,17 @@ static inline int is_broadcast_ether_addr(const u8 *addr)
}
/**
+ * 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
*