inet: constify ip headers and in6_addr
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>
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index 4a1c3b4..e5e5425 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -67,8 +67,8 @@
};
static struct sock *__raw_v6_lookup(struct net *net, struct sock *sk,
- unsigned short num, struct in6_addr *loc_addr,
- struct in6_addr *rmt_addr, int dif)
+ unsigned short num, const struct in6_addr *loc_addr,
+ const struct in6_addr *rmt_addr, int dif)
{
struct hlist_node *node;
int is_multicast = ipv6_addr_is_multicast(loc_addr);
@@ -154,8 +154,8 @@
*/
static int ipv6_raw_deliver(struct sk_buff *skb, int nexthdr)
{
- struct in6_addr *saddr;
- struct in6_addr *daddr;
+ const struct in6_addr *saddr;
+ const struct in6_addr *daddr;
struct sock *sk;
int delivered = 0;
__u8 hash;
@@ -348,7 +348,7 @@
{
struct sock *sk;
int hash;
- struct in6_addr *saddr, *daddr;
+ const struct in6_addr *saddr, *daddr;
struct net *net;
hash = nexthdr & (RAW_HTABLE_SIZE - 1);
@@ -357,7 +357,7 @@
sk = sk_head(&raw_v6_hashinfo.ht[hash]);
if (sk != NULL) {
/* Note: ipv6_hdr(skb) != skb->data */
- struct ipv6hdr *ip6h = (struct ipv6hdr *)skb->data;
+ const struct ipv6hdr *ip6h = (const struct ipv6hdr *)skb->data;
saddr = &ip6h->saddr;
daddr = &ip6h->daddr;
net = dev_net(skb->dev);
@@ -1231,7 +1231,7 @@
static void raw6_sock_seq_show(struct seq_file *seq, struct sock *sp, int i)
{
struct ipv6_pinfo *np = inet6_sk(sp);
- struct in6_addr *dest, *src;
+ const struct in6_addr *dest, *src;
__u16 destp, srcp;
dest = &np->daddr;