net/fec: remove the use of "index" which is legacy

The "index" becomes legacy since fep->pdev->id starts working
to identify the instance.

Moreover, the call of fec_enet_init(ndev, 0) always passes 0
to fep->index. This makes the following code in fec_get_mac buggy.

	/* Adjust MAC if using default MAC address */
	if (iap == fec_mac_default)
		dev->dev_addr[ETH_ALEN-1] = fec_mac_default[ETH_ALEN-1] + fep->index;

It may be the time to remove "index" and use fep->pdev->id instead.

Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 6 deletions

diff --git a/drivers/net/fec.c b/drivers/net/fec.c
index 52e9ca8de4b2..47f6b3b91423 100644
--- a/drivers/net/fec.c
+++ b/drivers/net/fec.c
@@ -186,7 +186,6 @@ struct fec_enet_private {
         int     mii_timeout;
         uint    phy_speed;
         phy_interface_t phy_interface;
-        int     index;
         int     link;
         int     full_duplex;
         struct  completion mdio_done;
@@ -566,7 +565,7 @@ static void __inline__ fec_get_mac(struct net_device *dev)
 
         /* Adjust MAC if using default MAC address */
         if (iap == fec_mac_default)
-                 dev->dev_addr[ETH_ALEN-1] = fec_mac_default[ETH_ALEN-1] + fep->index;
+                 dev->dev_addr[ETH_ALEN-1] = fec_mac_default[ETH_ALEN-1] + fep->pdev->id;
 }
 #endif
 
@@ -1067,9 +1066,8 @@ static const struct net_device_ops fec_netdev_ops = {
  /*
   * XXX:  We need to clean up on failure exits here.
   *
-  * index is only used in legacy code
   */
-static int fec_enet_init(struct net_device *dev, int index)
+static int fec_enet_init(struct net_device *dev)
 {
         struct fec_enet_private *fep = netdev_priv(dev);
         struct bufdesc *cbd_base;
@@ -1086,7 +1084,6 @@ static int fec_enet_init(struct net_device *dev, int index)
 
         spin_lock_init(&fep->hw_lock);
 
-        fep->index = index;
         fep->hwp = (void __iomem *)dev->base_addr;
         fep->netdev = dev;
 
@@ -1316,7 +1313,7 @@ fec_probe(struct platform_device *pdev)
         }
         clk_enable(fep->clk);
 
-        ret = fec_enet_init(ndev, 0);
+        ret = fec_enet_init(ndev);
         if (ret)
                 goto failed_init;