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-rw-r--r--drivers/net/ethernet/calxeda/xgmac.c27
1 files changed, 12 insertions, 15 deletions
diff --git a/drivers/net/ethernet/calxeda/xgmac.c b/drivers/net/ethernet/calxeda/xgmac.c
index c4fd2e3600c7..3ca1d792f718 100644
--- a/drivers/net/ethernet/calxeda/xgmac.c
+++ b/drivers/net/ethernet/calxeda/xgmac.c
@@ -671,26 +671,23 @@ static void xgmac_rx_refill(struct xgmac_priv *priv)
p = priv->dma_rx + entry;
- if (priv->rx_skbuff[entry] != NULL)
- continue;
-
- skb = __skb_dequeue(&priv->rx_recycle);
- if (skb == NULL)
- skb = netdev_alloc_skb(priv->dev, priv->dma_buf_sz);
- if (unlikely(skb == NULL))
- break;
-
- priv->rx_skbuff[entry] = skb;
- paddr = dma_map_single(priv->device, skb->data,
- priv->dma_buf_sz, DMA_FROM_DEVICE);
- desc_set_buf_addr(p, paddr, priv->dma_buf_sz);
+ if (priv->rx_skbuff[entry] == NULL) {
+ skb = __skb_dequeue(&priv->rx_recycle);
+ if (skb == NULL)
+ skb = netdev_alloc_skb(priv->dev, priv->dma_buf_sz);
+ if (unlikely(skb == NULL))
+ break;
+
+ priv->rx_skbuff[entry] = skb;
+ paddr = dma_map_single(priv->device, skb->data,
+ priv->dma_buf_sz, DMA_FROM_DEVICE);
+ desc_set_buf_addr(p, paddr, priv->dma_buf_sz);
+ }
netdev_dbg(priv->dev, "rx ring: head %d, tail %d\n",
priv->rx_head, priv->rx_tail);
priv->rx_head = dma_ring_incr(priv->rx_head, DMA_RX_RING_SZ);
- /* Ensure descriptor is in memory before handing to h/w */
- wmb();
desc_set_rx_owner(p);
}
}