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net: add skb frag size accessors

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To ease skb->truesize sanitization, its better to be able to localize
all references to skb frags size.

Define accessors : skb_frag_size() to fetch frag size, and
skb_frag_size_{set|add|sub}() to manipulate it.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet
2011-10-18 21:00:24 +00:00
committed by David S. Miller
parent dd767856a3
commit 9e903e0852
87 changed files with 387 additions and 357 deletions
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6
drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
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@@ -1905,13 +1905,13 @@ netxen_map_tx_skb(struct pci_dev *pdev,
frag = &skb_shinfo(skb)->frags[i];
nf = &pbuf->frag_array[i+1];
map = skb_frag_dma_map(&pdev->dev, frag, 0, frag->size,
map = skb_frag_dma_map(&pdev->dev, frag, 0, skb_frag_size(frag),
DMA_TO_DEVICE);
if (dma_mapping_error(&pdev->dev, map))
goto unwind;
nf->dma = map;
nf->length = frag->size;
nf->length = skb_frag_size(frag);
}
return 0;
@@ -1962,7 +1962,7 @@ netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
for (i = 0; i < (frag_count - NETXEN_MAX_FRAGS_PER_TX); i++) {
frag = &skb_shinfo(skb)->frags[i];
delta += frag->size;
delta += skb_frag_size(frag);
}
if (!__pskb_pull_tail(skb, delta))