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firewire net: Use LL_RESERVED_SPACE(), HH_DATA_OFF().

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Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
YOSHIFUJI Hideaki / 吉藤英明 2013-01-19 22:03:07 +00:00 committed by David S. Miller
parent b577d7e2ad
commit 825863408a
1 changed files with 6 additions and 6 deletions
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12
drivers/firewire/net.c
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@ -270,7 +270,7 @@ static int fwnet_header_cache(const struct neighbour *neigh,
if (type == cpu_to_be16(ETH_P_802_3))
return -1;
net = neigh->dev;
h = (struct fwnet_header *)((u8 *)hh->hh_data + 16 - sizeof(*h));
h = (struct fwnet_header *)((u8 *)hh->hh_data + HH_DATA_OFF(sizeof(*h)));
h->h_proto = type;
memcpy(h->h_dest, neigh->ha, net->addr_len);
hh->hh_len = FWNET_HLEN;
@ -282,7 +282,7 @@ static int fwnet_header_cache(const struct neighbour *neigh,
static void fwnet_header_cache_update(struct hh_cache *hh,
const struct net_device *net, const unsigned char *haddr)
{
memcpy((u8 *)hh->hh_data + 16 - FWNET_HLEN, haddr, net->addr_len);
memcpy((u8 *)hh->hh_data + HH_DATA_OFF(FWNET_HLEN), haddr, net->addr_len);
}
static int fwnet_header_parse(const struct sk_buff *skb, unsigned char *haddr)
@ -398,11 +398,11 @@ static struct fwnet_partial_datagram *fwnet_pd_new(struct net_device *net,
new->datagram_label = datagram_label;
new->datagram_size = dg_size;
new->skb = dev_alloc_skb(dg_size + net->hard_header_len + 15);
new->skb = dev_alloc_skb(dg_size + LL_RESERVED_SPACE(net));
if (new->skb == NULL)
goto fail_w_fi;
skb_reserve(new->skb, (net->hard_header_len + 15) & ~15);
skb_reserve(new->skb, LL_RESERVED_SPACE(net));
new->pbuf = skb_put(new->skb, dg_size);
memcpy(new->pbuf + frag_off, frag_buf, frag_len);
list_add_tail(&new->pd_link, &peer->pd_list);
@ -690,14 +690,14 @@ static int fwnet_incoming_packet(struct fwnet_device *dev, __be32 *buf, int len,
buf++;
len -= RFC2374_UNFRAG_HDR_SIZE;
skb = dev_alloc_skb(len + net->hard_header_len + 15);
skb = dev_alloc_skb(len + LL_RESERVED_SPACE(net));
if (unlikely(!skb)) {
dev_err(&net->dev, "out of memory\n");
net->stats.rx_dropped++;
return -ENOMEM;
}
skb_reserve(skb, (net->hard_header_len + 15) & ~15);
skb_reserve(skb, LL_RESERVED_SPACE(net));
memcpy(skb_put(skb, len), buf, len);
return fwnet_finish_incoming_packet(net, skb, source_node_id,