netfilter: nfnetlink: constify message attributes and headers

Signed-off-by: Patrick McHardy <kaber@trash.net>

1 files changed, 3 insertions, 3 deletions

diff --git a/net/ipv4/netfilter/nf_nat_core.c b/net/ipv4/netfilter/nf_nat_core.c
index b6ddd5633045..68afc6ecd343 100644
--- a/net/ipv4/netfilter/nf_nat_core.c
+++ b/net/ipv4/netfilter/nf_nat_core.c
@@ -620,7 +620,7 @@ static const struct nla_policy nat_nla_policy[CTA_NAT_MAX+1] = {
 };
 
 static int
-nfnetlink_parse_nat(struct nlattr *nat,
+nfnetlink_parse_nat(const struct nlattr *nat,
                     const struct nf_conn *ct, struct nf_nat_range *range)
 {
         struct nlattr *tb[CTA_NAT_MAX+1];
@@ -656,7 +656,7 @@ nfnetlink_parse_nat(struct nlattr *nat,
 static int
 nfnetlink_parse_nat_setup(struct nf_conn *ct,
                           enum nf_nat_manip_type manip,
-                          struct nlattr *attr)
+                          const struct nlattr *attr)
 {
         struct nf_nat_range range;
 
@@ -671,7 +671,7 @@ nfnetlink_parse_nat_setup(struct nf_conn *ct,
 static int
 nfnetlink_parse_nat_setup(struct nf_conn *ct,
                           enum nf_nat_manip_type manip,
-                          struct nlattr *attr)
+                          const struct nlattr *attr)
 {
         return -EOPNOTSUPP;
 }