[PATCH] mv643xx_eth: Rename mp->tx_ring_skbs to mp->tx_desc_count

tx_ring_skbs is actually a count of tx descriptors currently in use.
Since there may be multiple descriptors per skb, it is not the
same as the number of skbs in the ring.

Also change rx_ring_skbs to rx_desc_count to be consistent.

Signed-off-by: Dale Farnsworth <dale@farnsworth.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
diff --git a/drivers/net/mv643xx_eth.h b/drivers/net/mv643xx_eth.h
index ef83906..345f970 100644
--- a/drivers/net/mv643xx_eth.h
+++ b/drivers/net/mv643xx_eth.h
@@ -371,12 +371,12 @@
 	spinlock_t lock;
 	/* Size of Tx Ring per queue */
 	unsigned int tx_ring_size;
-	/* Ammont of SKBs outstanding on Tx queue */
-	unsigned int tx_ring_skbs;
+	/* Number of tx descriptors in use */
+	unsigned int tx_desc_count;
 	/* Size of Rx Ring per queue */
 	unsigned int rx_ring_size;
-	/* Ammount of SKBs allocated to Rx Ring per queue */
-	unsigned int rx_ring_skbs;
+	/* Number of rx descriptors in use */
+	unsigned int rx_desc_count;
 
 	/*
 	 * rx_task used to fill RX ring out of bottom half context