netfilter: xtables: mark initial tables constant

The inputted table is never modified, so should be considered const.

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>

1 files changed, 2 insertions, 2 deletions

diff --git a/net/ipv4/netfilter/nf_nat_rule.c b/net/ipv4/netfilter/nf_nat_rule.c
index 6448a9b7d6f..9e81e0dfb4e 100644
--- a/net/ipv4/netfilter/nf_nat_rule.c
+++ b/net/ipv4/netfilter/nf_nat_rule.c
@@ -28,7 +28,7 @@
                          (1 << NF_INET_POST_ROUTING) | \
                          (1 << NF_INET_LOCAL_OUT))
 
-static struct
+static const struct
 {
         struct ipt_replace repl;
         struct ipt_standard entries[3];
@@ -58,7 +58,7 @@ static struct
         .term = IPT_ERROR_INIT,                 /* ERROR */
 };
 
-static struct xt_table nat_table = {
+static const struct xt_table nat_table = {
         .name           = "nat",
         .valid_hooks    = NAT_VALID_HOOKS,
         .me             = THIS_MODULE,