From: Jarek Poplawski Using pci_unmap_len(), with the same length as pci_map_single(), with pci_dma_sync_single_for_cpu()/_device() fixes this warning (2.6.32.4): > Jan 19 10:43:50 mail kernel: WARNING: at lib/dma-debug.c:902 > check_sync+0xc1/0x43f() > Jan 19 10:43:50 mail kernel: Hardware name: System Product Name > Jan 19 10:43:50 mail kernel: sky2 0000:04:00.0: DMA-API: device driver > tries to sync DMA memory it has not allocated [device > address=0x0000000320a0b022] [size=60 bytes] Reported-by: Michael Breuer Tested-by: Michael Breuer Signed-off-by: Jarek Poplawski Acked-by: Stephen Hemminger --- a/drivers/net/sky2.c 2010-01-20 10:04:08.629387601 -0800 +++ b/drivers/net/sky2.c 2010-01-20 10:05:39.333941031 -0800 @@ -2252,12 +2252,14 @@ static struct sk_buff *receive_copy(stru skb = netdev_alloc_skb_ip_align(sky2->netdev, length); if (likely(skb)) { pci_dma_sync_single_for_cpu(sky2->hw->pdev, re->data_addr, - length, PCI_DMA_FROMDEVICE); + pci_unmap_len(re, data_size), + PCI_DMA_FROMDEVICE); skb_copy_from_linear_data(re->skb, skb->data, length); skb->ip_summed = re->skb->ip_summed; skb->csum = re->skb->csum; pci_dma_sync_single_for_device(sky2->hw->pdev, re->data_addr, - length, PCI_DMA_FROMDEVICE); + pci_unmap_len(re, data_size), + PCI_DMA_FROMDEVICE); re->skb->ip_summed = CHECKSUM_NONE; skb_put(skb, length); } -- -- 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