drivers/net/: all drivers/net/ cleanup with ARRAY_SIZE

Signed-off-by: Denis Cheng <crquan@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/net/netxen/netxen_nic.h b/drivers/net/netxen/netxen_nic.h
index aaa3493..7bbd5d1 100644
--- a/drivers/net/netxen/netxen_nic.h
+++ b/drivers/net/netxen/netxen_nic.h
@@ -1119,7 +1119,7 @@
 	{NETXEN_BRDTYPE_P2_SB31_2G, 2, "Dual Gb"},
 };
 
-#define NUM_SUPPORTED_BOARDS (sizeof(netxen_boards)/sizeof(struct netxen_brdinfo))
+#define NUM_SUPPORTED_BOARDS ARRAY_SIZE(netxen_boards)
 
 static inline void get_brd_port_by_type(u32 type, int *ports)
 {