The DMA api requires that the full mapping be sync'd when
copying frame. First found by Jarek on sky2.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>

--- a/drivers/net/tulip/de2104x.c	2010-01-20 11:41:20.878138314 -0800
+++ b/drivers/net/tulip/de2104x.c	2010-01-20 11:41:59.858847380 -0800
@@ -456,11 +456,13 @@ static void de_rx (struct de_private *de
 					       buflen, PCI_DMA_FROMDEVICE);
 			de->rx_skb[rx_tail].skb = copy_skb;
 		} else {
-			pci_dma_sync_single_for_cpu(de->pdev, mapping, len, PCI_DMA_FROMDEVICE);
+			pci_dma_sync_single_for_cpu(de->pdev, mapping,
+						    buflen, PCI_DMA_FROMDEVICE);
 			skb_reserve(copy_skb, RX_OFFSET);
 			skb_copy_from_linear_data(skb, skb_put(copy_skb, len),
 						  len);
-			pci_dma_sync_single_for_device(de->pdev, mapping, len, PCI_DMA_FROMDEVICE);
+			pci_dma_sync_single_for_device(de->pdev, mapping,
+						       buflen, PCI_DMA_FROMDEVICE);
 
 			/* We'll reuse the original ring buffer. */
 			skb = copy_skb;

-- 

--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html