broadcom: replace open-coded ARRAY_SIZE with macro

Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/broadcom/bnx2.c b/drivers/net/ethernet/broadcom/bnx2.c
index 36037a6..ab55979 100644
--- a/drivers/net/ethernet/broadcom/bnx2.c
+++ b/drivers/net/ethernet/broadcom/bnx2.c
@@ -7343,8 +7343,7 @@
 	{ "rx_fw_discards" },
 };
 
-#define BNX2_NUM_STATS (sizeof(bnx2_stats_str_arr)/\
-			sizeof(bnx2_stats_str_arr[0]))
+#define BNX2_NUM_STATS ARRAY_SIZE(bnx2_stats_str_arr)
 
 #define STATS_OFFSET32(offset_name) (offsetof(struct statistics_block, offset_name) / 4)