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/tundra/tsi108_eth.c b/drivers/net/ethernet/tundra/tsi108_eth.c
index a03996c..a8df7ec 100644
--- a/drivers/net/ethernet/tundra/tsi108_eth.c
+++ b/drivers/net/ethernet/tundra/tsi108_eth.c
@@ -709,13 +709,13 @@
data->txring[tx].len = skb_headlen(skb);
misc |= TSI108_TX_SOF;
} else {
- skb_frag_t *frag = &skb_shinfo(skb)->frags[i - 1];
+ const skb_frag_t *frag = &skb_shinfo(skb)->frags[i - 1];
data->txring[tx].buf0 = skb_frag_dma_map(NULL, frag,
0,
- frag->size,
+ skb_frag_size(frag),
DMA_TO_DEVICE);
- data->txring[tx].len = frag->size;
+ data->txring[tx].len = skb_frag_size(frag);
}
if (i == frags - 1)