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/tile/tilepro.c b/drivers/net/ethernet/tile/tilepro.c
index 1e2af96..78e3fb2 100644
--- a/drivers/net/ethernet/tile/tilepro.c
+++ b/drivers/net/ethernet/tile/tilepro.c
@@ -1713,7 +1713,7 @@
cpa = ((phys_addr_t)pfn << PAGE_SHIFT) + f->page_offset;
frags[n].cpa_lo = cpa;
frags[n].cpa_hi = cpa >> 32;
- frags[n].length = f->size;
+ frags[n].length = skb_frag_size(f);
frags[n].hash_for_home = hash_for_home;
n++;
}