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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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8
net/core/dev.c
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@ -2502,8 +2502,8 @@ static inline void ____napi_schedule(struct softnet_data *sd,
__u32 __skb_get_rxhash(struct sk_buff *skb)
{
int nhoff, hash = 0, poff;
struct ipv6hdr *ip6;
struct iphdr *ip;
const struct ipv6hdr *ip6;
const struct iphdr *ip;
u8 ip_proto;
u32 addr1, addr2, ihl;
union {
@ -2518,7 +2518,7 @@ __u32 __skb_get_rxhash(struct sk_buff *skb)
if (!pskb_may_pull(skb, sizeof(*ip) + nhoff))
goto done;
ip = (struct iphdr *) (skb->data + nhoff);
ip = (const struct iphdr *) (skb->data + nhoff);
if (ip->frag_off & htons(IP_MF | IP_OFFSET))
ip_proto = 0;
else
@ -2531,7 +2531,7 @@ __u32 __skb_get_rxhash(struct sk_buff *skb)
if (!pskb_may_pull(skb, sizeof(*ip6) + nhoff))
goto done;
ip6 = (struct ipv6hdr *) (skb->data + nhoff);
ip6 = (const struct ipv6hdr *) (skb->data + nhoff);
ip_proto = ip6->nexthdr;
addr1 = (__force u32) ip6->saddr.s6_addr32[3];
addr2 = (__force u32) ip6->daddr.s6_addr32[3];