netfilter: nf_tables: constify chain type definitions and pointers
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
diff --git a/net/ipv4/netfilter/nf_tables_ipv4.c b/net/ipv4/netfilter/nf_tables_ipv4.c
index d6fc1b4..cec7805 100644
--- a/net/ipv4/netfilter/nf_tables_ipv4.c
+++ b/net/ipv4/netfilter/nf_tables_ipv4.c
@@ -91,7 +91,7 @@
.exit = nf_tables_ipv4_exit_net,
};
-static struct nf_chain_type filter_ipv4 = {
+static const struct nf_chain_type filter_ipv4 = {
.family = NFPROTO_IPV4,
.name = "filter",
.type = NFT_CHAIN_T_DEFAULT,