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>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/atm/eni.c b/drivers/atm/eni.c
index f7ca4c13d61d..956e9accb051 100644
--- a/drivers/atm/eni.c
+++ b/drivers/atm/eni.c
@@ -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));