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authorArnaldo Carvalho de Melo <acme@redhat.com>2007-03-10 22:16:10 -0300
committerDavid S. Miller <davem@sunset.davemloft.net>2007-04-25 22:24:58 -0700
commitbbe735e4247dba32568a305553b010081c8dea99 (patch)
tree95d96619c85785a47ccee48965b68d99cf946854 /net/ipv6
parente7dd65dafda5737a983c04d652a69ab8da78ee3f (diff)
[SK_BUFF]: Introduce skb_network_offset()
For the quite common 'skb->nh.raw - skb->data' sequence. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6')
-rw-r--r--net/ipv6/icmp.c4
-rw-r--r--net/ipv6/ip6_output.c4
2 files changed, 4 insertions, 4 deletions
diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c
index a91dfbce843..aa4a0a59ffa 100644
--- a/net/ipv6/icmp.c
+++ b/net/ipv6/icmp.c
@@ -206,7 +206,7 @@ static __inline__ int opt_unrec(struct sk_buff *skb, __u32 offset)
{
u8 _optval, *op;
- offset += skb->nh.raw - skb->data;
+ offset += skb_network_offset(skb);
op = skb_header_pointer(skb, offset, sizeof(_optval), &_optval);
if (op == NULL)
return 1;
@@ -431,7 +431,7 @@ void icmpv6_send(struct sk_buff *skb, int type, int code, __u32 info,
tclass = 0;
msg.skb = skb;
- msg.offset = skb->nh.raw - skb->data;
+ msg.offset = skb_network_offset(skb);
msg.type = type;
len = skb->len - msg.offset;
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 8a7b5c76014..47d00210cba 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -89,7 +89,7 @@ static inline int ip6_output_finish(struct sk_buff *skb)
static int ip6_dev_loopback_xmit(struct sk_buff *newskb)
{
skb_reset_mac_header(newskb);
- __skb_pull(newskb, newskb->nh.raw - newskb->data);
+ __skb_pull(newskb, skb_network_offset(newskb));
newskb->pkt_type = PACKET_LOOPBACK;
newskb->ip_summed = CHECKSUM_UNNECESSARY;
BUG_TRAP(newskb->dst);
@@ -1330,7 +1330,7 @@ int ip6_push_pending_frames(struct sock *sk)
/* move skb->data to ip header from ext header */
if (skb->data < skb->nh.raw)
- __skb_pull(skb, skb->nh.raw - skb->data);
+ __skb_pull(skb, skb_network_offset(skb));
while ((tmp_skb = __skb_dequeue(&sk->sk_write_queue)) != NULL) {
__skb_pull(tmp_skb, skb->h.raw - skb->nh.raw);
*tail_skb = tmp_skb;