netfilter: nfnetlink: constify message attributes and headers

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

1 files changed, 2 insertions, 1 deletions

diff --git a/include/linux/netfilter/nfnetlink.h b/include/linux/netfilter/nfnetlink.h
index bff4d5741d98..9f00da287f2c 100644
--- a/include/linux/netfilter/nfnetlink.h
+++ b/include/linux/netfilter/nfnetlink.h
@@ -58,7 +58,8 @@ struct nfgenmsg {
 struct nfnl_callback
 {
         int (*call)(struct sock *nl, struct sk_buff *skb, 
-                struct nlmsghdr *nlh, struct nlattr *cda[]);
+                    const struct nlmsghdr *nlh,
+                    const struct nlattr * const cda[]);
         const struct nla_policy *policy;        /* netlink attribute policy */
         const u_int16_t attr_count;             /* number of nlattr's */
 };