net: add skb frag size accessors
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>
diff --git a/drivers/atm/eni.c b/drivers/atm/eni.c
index f7ca4c1..956e9ac 100644
--- a/drivers/atm/eni.c
+++ b/drivers/atm/eni.c
@@ -1136,7 +1136,7 @@
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));