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net: add skb frag size accessors

Selaa lähdekoodia 
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
vanhempi dd767856a3
commit 9e903e0852
87 muutettua tiedostoa jossa 387 lisäystä ja 357 poistoa
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10
drivers/net/ethernet/alteon/acenic.c
Näytä tiedosto

@@ -2478,18 +2478,18 @@ restart:
idx = (idx + 1) % ACE_TX_RING_ENTRIES(ap);
for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
const skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
struct tx_ring_info *info;
len += frag->size;
len += skb_frag_size(frag);
info = ap->skb->tx_skbuff + idx;
desc = ap->tx_ring + idx;
mapping = skb_frag_dma_map(&ap->pdev->dev, frag, 0,
frag->size,
skb_frag_size(frag),
DMA_TO_DEVICE);
flagsize = (frag->size << 16);
flagsize = skb_frag_size(frag) << 16;
if (skb->ip_summed == CHECKSUM_PARTIAL)
flagsize |= BD_FLG_TCP_UDP_SUM;
idx = (idx + 1) % ACE_TX_RING_ENTRIES(ap);
@@ -2508,7 +2508,7 @@ restart:
info->skb = NULL;
}
dma_unmap_addr_set(info, mapping, mapping);
dma_unmap_len_set(info, maplen, frag->size);
dma_unmap_len_set(info, maplen, skb_frag_size(frag));
ace_load_tx_bd(ap, desc, mapping, flagsize, vlan_tag);
}
}