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net: add skb frag size accessors

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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>
This commit is contained in:
Eric Dumazet
2011-10-18 21:00:24 +00:00
committed by David S. Miller
parent dd767856a3
commit 9e903e0852
87 changed files with 387 additions and 357 deletions
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6
drivers/net/ethernet/intel/e1000e/netdev.c
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@@ -4673,10 +4673,10 @@ static int e1000_tx_map(struct e1000_adapter *adapter,
}
for (f = 0; f < nr_frags; f++) {
struct skb_frag_struct *frag;
const struct skb_frag_struct *frag;
frag = &skb_shinfo(skb)->frags[f];
len = frag->size;
len = skb_frag_size(frag);
offset = 0;
while (len) {
@@ -4943,7 +4943,7 @@ static netdev_tx_t e1000_xmit_frame(struct sk_buff *skb,
nr_frags = skb_shinfo(skb)->nr_frags;
for (f = 0; f < nr_frags; f++)
count += TXD_USE_COUNT(skb_shinfo(skb)->frags[f].size,
count += TXD_USE_COUNT(skb_frag_size(&skb_shinfo(skb)->frags[f]),
max_txd_pwr);
if (adapter->hw.mac.tx_pkt_filtering)