[NETFILTER]: nf_conntrack: annotate l3protos with const

Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 12 insertions, 10 deletions

diff --git a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
index ac3d61d8026e..a65b845c5f15 100644
--- a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
+++ b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
@@ -27,7 +27,8 @@
 static int ipv4_pkt_to_tuple(const struct sk_buff *skb, unsigned int nhoff,
                              struct nf_conntrack_tuple *tuple)
 {
-        __be32 _addrs[2], *ap;
+        const __be32 *ap;
+        __be32 _addrs[2];
         ap = skb_header_pointer(skb, nhoff + offsetof(struct iphdr, saddr),
                                 sizeof(u_int32_t) * 2, _addrs);
         if (ap == NULL)
@@ -76,7 +77,8 @@ static int nf_ct_ipv4_gather_frags(struct sk_buff *skb, u_int32_t user)
 static int ipv4_get_l4proto(const struct sk_buff *skb, unsigned int nhoff,
                             unsigned int *dataoff, u_int8_t *protonum)
 {
-        struct iphdr _iph, *iph;
+        const struct iphdr *iph;
+        struct iphdr _iph;
 
         iph = skb_header_pointer(skb, nhoff, sizeof(_iph), &_iph);
         if (iph == NULL)
@@ -111,8 +113,8 @@ static unsigned int ipv4_conntrack_help(unsigned int hooknum,
 {
         struct nf_conn *ct;
         enum ip_conntrack_info ctinfo;
-        struct nf_conn_help *help;
-        struct nf_conntrack_helper *helper;
+        const struct nf_conn_help *help;
+        const struct nf_conntrack_helper *helper;
 
         /* This is where we call the helper: as the packet goes out. */
         ct = nf_ct_get(skb, &ctinfo);
@@ -299,8 +301,8 @@ static ctl_table ip_ct_sysctl_table[] = {
 static int
 getorigdst(struct sock *sk, int optval, void __user *user, int *len)
 {
-        struct inet_sock *inet = inet_sk(sk);
-        struct nf_conntrack_tuple_hash *h;
+        const struct inet_sock *inet = inet_sk(sk);
+        const struct nf_conntrack_tuple_hash *h;
         struct nf_conntrack_tuple tuple;
 
         NF_CT_TUPLE_U_BLANK(&tuple);
diff --git a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4_compat.c b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4_compat.c
index 0ee87edbd286..089252e82c01 100644
--- a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4_compat.c
+++ b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4_compat.c
@@ -98,8 +98,8 @@ static int ct_seq_show(struct seq_file *s, void *v)
 {
         const struct nf_conntrack_tuple_hash *hash = v;
         const struct nf_conn *ct = nf_ct_tuplehash_to_ctrack(hash);
-        struct nf_conntrack_l3proto *l3proto;
-        struct nf_conntrack_l4proto *l4proto;
+        const struct nf_conntrack_l3proto *l3proto;
+        const struct nf_conntrack_l4proto *l4proto;
 
         NF_CT_ASSERT(ct);
 
@@ -251,7 +251,7 @@ static void exp_seq_stop(struct seq_file *seq, void *v)
 static int exp_seq_show(struct seq_file *s, void *v)
 {
         struct nf_conntrack_expect *exp;
-        struct hlist_node *n = v;
+        const struct hlist_node *n = v;
 
         exp = hlist_entry(n, struct nf_conntrack_expect, hnode);
 
@@ -332,7 +332,7 @@ static void ct_cpu_seq_stop(struct seq_file *seq, void *v)
 static int ct_cpu_seq_show(struct seq_file *seq, void *v)
 {
         unsigned int nr_conntracks = atomic_read(&nf_conntrack_count);
-        struct ip_conntrack_stat *st = v;
+        const struct ip_conntrack_stat *st = v;
 
         if (v == SEQ_START_TOKEN) {
                 seq_printf(seq, "entries  searched found new invalid ignore delete delete_list insert insert_failed drop early_drop icmp_error  expect_new expect_create expect_delete\n");