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[SK_BUFF] xfrm: Use skb_set_mac_header in the memmove cases

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Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Arnaldo Carvalho de Melo 2007-03-10 12:40:27 -03:00 • committed by David S. Miller
parent 48d49d0ccd
commit 39f69c6f92
3 changed files with 12 additions and 6 deletions
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6
net/ipv4/xfrm4_mode_tunnel.c
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@ -91,6 +91,7 @@ static int xfrm4_tunnel_output(struct xfrm_state *x, struct sk_buff *skb)
static int xfrm4_tunnel_input(struct xfrm_state *x, struct sk_buff *skb)
{
struct iphdr *iph = skb->nh.iph;
const unsigned char *old_mac;
int err = -EINVAL;
switch (iph->protocol){
@ -125,8 +126,9 @@ static int xfrm4_tunnel_input(struct xfrm_state *x, struct sk_buff *skb)
skb->protocol = htons(ETH_P_IPV6);
}
#endif
skb->mac.raw = memmove(skb->data - skb->mac_len,
skb->mac.raw, skb->mac_len);
old_mac = skb->mac.raw;
skb_set_mac_header(skb, -skb->mac_len);
memmove(skb->mac.raw, old_mac, skb->mac_len);
skb->nh.raw = skb->data;
err = 0;