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inet: constify ip headers and in6_addr

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Add const qualifiers to structs iphdr, ipv6hdr and in6_addr pointers
where possible, to make code intention more obvious.

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
2011-04-22 04:53:02 +00:00
committed by David S. Miller
parent 5f8629c526
commit b71d1d426d
64 changed files with 316 additions and 310 deletions
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5
net/ipv6/ipcomp6.c
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@ -55,7 +55,7 @@ static void ipcomp6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
{
struct net *net = dev_net(skb->dev);
__be32 spi;
struct ipv6hdr *iph = (struct ipv6hdr*)skb->data;
const struct ipv6hdr *iph = (const struct ipv6hdr *)skb->data;
struct ip_comp_hdr *ipcomph =
(struct ip_comp_hdr *)(skb->data + offset);
struct xfrm_state *x;
@ -64,7 +64,8 @@ static void ipcomp6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
return;
spi = htonl(ntohs(ipcomph->cpi));
x = xfrm_state_lookup(net, skb->mark, (xfrm_address_t *)&iph->daddr, spi, IPPROTO_COMP, AF_INET6);
x = xfrm_state_lookup(net, skb->mark, (const xfrm_address_t *)&iph->daddr,
spi, IPPROTO_COMP, AF_INET6);
if (!x)
return;