Add ability to take MAC address from the environment to DM9000 driver
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Ben Warren <bwarren@qstreams.com>
diff --git a/include/net.h b/include/net.h
index 9671948..aa58e33 100644
--- a/include/net.h
+++ b/include/net.h
@@ -435,6 +435,29 @@
memcpy((void*)to, (void*)from, sizeof(ulong));
}
+/**
+ * is_zero_ether_addr - Determine if give Ethernet address is all zeros.
+ * @addr: Pointer to a six-byte array containing the Ethernet address
+ *
+ * Return true if the address is all zeroes.
+ */
+static inline int is_zero_ether_addr(const u8 *addr)
+{
+ return !(addr[0] | addr[1] | addr[2] | addr[3] | addr[4] | addr[5]);
+}
+
+/**
+ * is_multicast_ether_addr - Determine if the Ethernet address is a multicast.
+ * @addr: Pointer to a six-byte array containing the Ethernet address
+ *
+ * Return true if the address is a multicast address.
+ * By definition the broadcast address is also a multicast address.
+ */
+static inline int is_multicast_ether_addr(const u8 *addr)
+{
+ return (0x01 & addr[0]);
+}
+
/* Convert an IP address to a string */
extern void ip_to_string (IPaddr_t x, char *s);