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[FORCEDETH]: Use skb_tailroom where appropriate
Reducing the number of skb->data direct accesses. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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parent
d004b8d490
commit
8b5be26831
1 changed files with 7 additions and 11 deletions
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@ -1388,11 +1388,9 @@ static int nv_alloc_rx(struct net_device *dev)
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np->put_rx_ctx->skb = skb;
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np->put_rx_ctx->dma = pci_map_single(np->pci_dev,
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skb->data,
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(skb_end_pointer(skb) -
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skb->data),
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skb_tailroom(skb),
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PCI_DMA_FROMDEVICE);
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np->put_rx_ctx->dma_len = (skb_end_pointer(skb) -
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skb->data);
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np->put_rx_ctx->dma_len = skb_tailroom(skb);
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np->put_rx.orig->buf = cpu_to_le32(np->put_rx_ctx->dma);
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wmb();
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np->put_rx.orig->flaglen = cpu_to_le32(np->rx_buf_sz | NV_RX_AVAIL);
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@ -1422,11 +1420,9 @@ static int nv_alloc_rx_optimized(struct net_device *dev)
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np->put_rx_ctx->skb = skb;
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np->put_rx_ctx->dma = pci_map_single(np->pci_dev,
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skb->data,
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(skb_end_pointer(skb) -
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skb->data),
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skb_tailroom(skb),
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PCI_DMA_FROMDEVICE);
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np->put_rx_ctx->dma_len = (skb_end_pointer(skb) -
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skb->data);
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np->put_rx_ctx->dma_len = skb_tailroom(skb);
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np->put_rx.ex->bufhigh = cpu_to_le64(np->put_rx_ctx->dma) >> 32;
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np->put_rx.ex->buflow = cpu_to_le64(np->put_rx_ctx->dma) & 0x0FFFFFFFF;
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wmb();
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@ -4383,12 +4379,12 @@ static int nv_loopback_test(struct net_device *dev)
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ret = 0;
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goto out;
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}
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test_dma_addr = pci_map_single(np->pci_dev, tx_skb->data,
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skb_tailroom(tx_skb),
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PCI_DMA_FROMDEVICE);
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pkt_data = skb_put(tx_skb, pkt_len);
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for (i = 0; i < pkt_len; i++)
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pkt_data[i] = (u8)(i & 0xff);
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test_dma_addr = pci_map_single(np->pci_dev, tx_skb->data,
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(skb_end_pointer(tx_skb) -
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tx_skb->data), PCI_DMA_FROMDEVICE);
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if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) {
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np->tx_ring.orig[0].buf = cpu_to_le32(test_dma_addr);
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