ethernet: Remove unnecessary alloc/OOM messages, alloc cleanups

alloc failures already get standardized OOM
messages and a dump_stack.

Convert kzalloc's with multiplies to kcalloc.
Convert kmalloc's with multiplies to kmalloc_array.
Fix a few whitespace defects.
Convert a constant 6 to ETH_ALEN.
Use parentheses around sizeof.
Convert vmalloc/memset to vzalloc.
Remove now unused size variables.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/marvell/mv643xx_eth.c b/drivers/net/ethernet/marvell/mv643xx_eth.c
index c27b23d8..2914050 100644
--- a/drivers/net/ethernet/marvell/mv643xx_eth.c
+++ b/drivers/net/ethernet/marvell/mv643xx_eth.c
@@ -1879,12 +1879,10 @@
 	memset(rxq->rx_desc_area, 0, size);
 
 	rxq->rx_desc_area_size = size;
-	rxq->rx_skb = kmalloc(rxq->rx_ring_size * sizeof(*rxq->rx_skb),
-								GFP_KERNEL);
-	if (rxq->rx_skb == NULL) {
-		netdev_err(mp->dev, "can't allocate rx skb ring\n");
+	rxq->rx_skb = kmalloc_array(rxq->rx_ring_size, sizeof(*rxq->rx_skb),
+				    GFP_KERNEL);
+	if (rxq->rx_skb == NULL)
 		goto out_free;
-	}
 
 	rx_desc = rxq->rx_desc_area;
 	for (i = 0; i < rxq->rx_ring_size; i++) {