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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>
This commit is contained in:
Anton Vorontsov 2009-10-12 06:00:33 +00:00 committed by David S. Miller
parent e69edd2181
commit 14231176b0
1 changed files with 0 additions and 4 deletions
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4
drivers/net/gianfar.c
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@ -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) {