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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/ibm/ibmveth.c
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@@ -1014,15 +1014,15 @@ retry_bounce:
/* Map the frags */
for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
const skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
dma_addr = skb_frag_dma_map(&adapter->vdev->dev, frag, 0,
frag->size, DMA_TO_DEVICE);
skb_frag_size(frag), DMA_TO_DEVICE);
if (dma_mapping_error(&adapter->vdev->dev, dma_addr))
goto map_failed_frags;
descs[i+1].fields.flags_len = desc_flags | frag->size;
descs[i+1].fields.flags_len = desc_flags | skb_frag_size(frag);
descs[i+1].fields.address = dma_addr;
}