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>

1 files changed, 7 insertions, 7 deletions

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 raw_hashinfo raw_v6_hashinfo = {
 };
 
 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 @@ EXPORT_SYMBOL(rawv6_mh_filter_unregister);
  */
 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 @@ void raw6_icmp_error(struct sk_buff *skb, int nexthdr,
 {
 	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 @@ void raw6_icmp_error(struct sk_buff *skb, int nexthdr,
 	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 @@ struct proto rawv6_prot = {
 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;