b44: use netdev_alloc_skb_ip_align()

Without this patch b44 always allocates the 2 bytes needed for aligned
access on every platform, now it uses netdev_alloc_skb_ip_align().

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/broadcom/b44.c

@@ -809,11 +809,10 @@ static int b44_rx(struct b44 *bp, int budget)
 			struct sk_buff *copy_skb;
 
 			b44_recycle_rx(bp, cons, bp->rx_prod);
-			copy_skb = netdev_alloc_skb(bp->dev, len + 2);
+			copy_skb = netdev_alloc_skb_ip_align(bp->dev, len);
 			if (copy_skb == NULL)
 				goto drop_it_no_recycle;
 
-			skb_reserve(copy_skb, 2);
 			skb_put(copy_skb, len);
 			/* DMA sync done above, copy just the actual packet */
 			skb_copy_from_linear_data_offset(skb, RX_PKT_OFFSET,