ethernet: Remove casts to same type

Adding casts of objects to the same type is unnecessary
and confusing for a human reader.

For example, this cast:

        int y;
        int *p = (int *)&y;

I used the coccinelle script below to find and remove these
unnecessary casts.  I manually removed the conversions this
script produces of casts with __force, __iomem and __user.

@@
type T;
T *p;
@@

-       (T *)p
+       p

A function in atl1e_main.c was passed a const pointer
when it actually modified elements of the structure.

Change the argument to a non-const pointer.

A function in stmmac needed a __force to avoid a sparse
warning.  Added it.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 4 insertions, 4 deletions

diff --git a/drivers/net/ethernet/marvell/mv643xx_eth.c b/drivers/net/ethernet/marvell/mv643xx_eth.c
index 04d901d0ff6..ec85bf1bffd 100644
--- a/drivers/net/ethernet/marvell/mv643xx_eth.c
+++ b/drivers/net/ethernet/marvell/mv643xx_eth.c
@@ -1894,7 +1894,7 @@ static int rxq_init(struct mv643xx_eth_private *mp, int index)
 		goto out_free;
 	}
 
-	rx_desc = (struct rx_desc *)rxq->rx_desc_area;
+	rx_desc = rxq->rx_desc_area;
 	for (i = 0; i < rxq->rx_ring_size; i++) {
 		int nexti;
 
@@ -1999,7 +1999,7 @@ static int txq_init(struct mv643xx_eth_private *mp, int index)
 
 	txq->tx_desc_area_size = size;
 
-	tx_desc = (struct tx_desc *)txq->tx_desc_area;
+	tx_desc = txq->tx_desc_area;
 	for (i = 0; i < txq->tx_ring_size; i++) {
 		struct tx_desc *txd = tx_desc + i;
 		int nexti;
diff --git a/drivers/net/ethernet/marvell/pxa168_eth.c b/drivers/net/ethernet/marvell/pxa168_eth.c
index 1db023b075a..59489722e89 100644
--- a/drivers/net/ethernet/marvell/pxa168_eth.c
+++ b/drivers/net/ethernet/marvell/pxa168_eth.c
@@ -1032,7 +1032,7 @@ static int rxq_init(struct net_device *dev)
 	}
 	memset((void *)pep->p_rx_desc_area, 0, size);
 	/* initialize the next_desc_ptr links in the Rx descriptors ring */
-	p_rx_desc = (struct rx_desc *)pep->p_rx_desc_area;
+	p_rx_desc = pep->p_rx_desc_area;
 	for (i = 0; i < rx_desc_num; i++) {
 		p_rx_desc[i].next_desc_ptr = pep->rx_desc_dma +
 		    ((i + 1) % rx_desc_num) * sizeof(struct rx_desc);
@@ -1095,7 +1095,7 @@ static int txq_init(struct net_device *dev)
 	}
 	memset((void *)pep->p_tx_desc_area, 0, pep->tx_desc_area_size);
 	/* Initialize the next_desc_ptr links in the Tx descriptors ring */
-	p_tx_desc = (struct tx_desc *)pep->p_tx_desc_area;
+	p_tx_desc = pep->p_tx_desc_area;
 	for (i = 0; i < tx_desc_num; i++) {
 		p_tx_desc[i].next_desc_ptr = pep->tx_desc_dma +
 		    ((i + 1) % tx_desc_num) * sizeof(struct tx_desc);