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/net/ethernet/3com/3c59x.c b/drivers/net/ethernet/3com/3c59x.c
index 9ca45dc..b42c06b 100644
--- a/drivers/net/ethernet/3com/3c59x.c
+++ b/drivers/net/ethernet/3com/3c59x.c
@@ -2182,12 +2182,12 @@
cpu_to_le32(pci_map_single(
VORTEX_PCI(vp),
(void *)skb_frag_address(frag),
- frag->size, PCI_DMA_TODEVICE));
+ skb_frag_size(frag), PCI_DMA_TODEVICE));
if (i == skb_shinfo(skb)->nr_frags-1)
- vp->tx_ring[entry].frag[i+1].length = cpu_to_le32(frag->size|LAST_FRAG);
+ vp->tx_ring[entry].frag[i+1].length = cpu_to_le32(skb_frag_size(frag)|LAST_FRAG);
else
- vp->tx_ring[entry].frag[i+1].length = cpu_to_le32(frag->size);
+ vp->tx_ring[entry].frag[i+1].length = cpu_to_le32(skb_frag_size(frag));
}
}
#else