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authorArnaldo Carvalho de Melo <acme@redhat.com>2007-04-11 07:50:43 +0400
committerDavid S. Miller <davem@sunset.davemloft.net>2007-04-26 09:24:59 +0400
commitd56f90a7c96da5187f0cdf07ee7434fe6aa78bbc (patch)
tree3b9073cecfbb3b6a1e25ab2b5dd2a22a43aef238 /drivers/net/loopback.c
parentbbe735e4247dba32568a305553b010081c8dea99 (diff)
downloadlinux-d56f90a7c96da5187f0cdf07ee7434fe6aa78bbc.tar.xz
[SK_BUFF]: Introduce skb_network_header()
For the places where we need a pointer to the network header, it is still legal to touch skb->nh.raw directly if just adding to, subtracting from or setting it to another layer header. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/loopback.c')
-rw-r--r--drivers/net/loopback.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/net/loopback.c b/drivers/net/loopback.c
index af476d2a513d..9265c27b13b2 100644
--- a/drivers/net/loopback.c
+++ b/drivers/net/loopback.c
@@ -76,7 +76,8 @@ static DEFINE_PER_CPU(struct pcpu_lstats, pcpu_lstats);
static void emulate_large_send_offload(struct sk_buff *skb)
{
struct iphdr *iph = skb->nh.iph;
- struct tcphdr *th = (struct tcphdr*)(skb->nh.raw + (iph->ihl * 4));
+ struct tcphdr *th = (struct tcphdr *)(skb_network_header(skb) +
+ (iph->ihl * 4));
unsigned int doffset = (iph->ihl + th->doff) * 4;
unsigned int mtu = skb_shinfo(skb)->gso_size + doffset;
unsigned int offset = 0;
@@ -93,7 +94,7 @@ static void emulate_large_send_offload(struct sk_buff *skb)
skb_set_mac_header(nskb, -ETH_HLEN);
skb_reset_network_header(nskb);
iph = nskb->nh.iph;
- memcpy(nskb->data, skb->nh.raw, doffset);
+ memcpy(nskb->data, skb_network_header(skb), doffset);
if (skb_copy_bits(skb,
doffset + offset,
nskb->data + doffset,
@@ -108,7 +109,7 @@ static void emulate_large_send_offload(struct sk_buff *skb)
memcpy(nskb->cb, skb->cb, sizeof(skb->cb));
nskb->pkt_type = skb->pkt_type;
- th = (struct tcphdr*)(nskb->nh.raw + iph->ihl*4);
+ th = (struct tcphdr *)(skb_network_header(nskb) + iph->ihl * 4);
iph->tot_len = htons(frag_size + doffset);
iph->id = htons(id);
iph->check = 0;