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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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2
drivers/atm/eni.c
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@@ -1136,7 +1136,7 @@ DPRINTK("doing direct send\n"); /* @@@ well, this doesn't work anyway */
put_dma(tx->index,eni_dev->dma,&j,(unsigned long)
skb_frag_page(&skb_shinfo(skb)->frags[i]) +
skb_shinfo(skb)->frags[i].page_offset,
skb_shinfo(skb)->frags[i].size);
skb_frag_size(&skb_shinfo(skb)->frags[i]));
}
if (skb->len & 3)
put_dma(tx->index,eni_dev->dma,&j,zeroes,4-(skb->len & 3));