gianfar: Don't needlessly set the wrap bit for the last RX BD

startup_gfar() sets the wrap bit for the last rxbd just after
gfar_new_rxbdp() call, which is issued for all rxbds. And
gfar_new_rxbdp() has the following check already:

	if (bdp == priv->rx_bd_base + priv->rx_ring_size - 1)
		lstatus |= BD_LFLAG(RXBD_WRAP);

So we don't need to set the bit again.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 0 insertions, 4 deletions

diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c
index a8b50c9b2d94..f84974195507 100644
--- a/drivers/net/gianfar.c
+++ b/drivers/net/gianfar.c
@@ -1028,10 +1028,6 @@ int startup_gfar(struct net_device *ndev)
                 rxbdp++;
         }
 
-        /* Set the last descriptor in the ring to wrap */
-        rxbdp--;
-        rxbdp->status |= RXBD_WRAP;
-
         /* If the device has multiple interrupts, register for
          * them.  Otherwise, only register for the one */
         if (priv->device_flags & FSL_GIANFAR_DEV_HAS_MULTI_INTR) {