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>

4 files changed, 4 insertions, 4 deletions

diff --git a/net/ipv4/netfilter/nf_tables_arp.c b/net/ipv4/netfilter/nf_tables_arp.c
index 228df003f3cc..8af01a5e8f98 100644
--- a/net/ipv4/netfilter/nf_tables_arp.c
+++ b/net/ipv4/netfilter/nf_tables_arp.c
@@ -68,7 +68,7 @@ static struct pernet_operations nf_tables_arp_net_ops = {
         .exit   = nf_tables_arp_exit_net,
 };
 
-static struct nf_chain_type filter_arp = {
+static const struct nf_chain_type filter_arp = {
         .family         = NFPROTO_ARP,
         .name           = "filter",
         .type           = NFT_CHAIN_T_DEFAULT,
diff --git a/net/ipv4/netfilter/nf_tables_ipv4.c b/net/ipv4/netfilter/nf_tables_ipv4.c
index d6fc1b4ace4e..cec7805de3e3 100644
--- a/net/ipv4/netfilter/nf_tables_ipv4.c
+++ b/net/ipv4/netfilter/nf_tables_ipv4.c
@@ -91,7 +91,7 @@ static struct pernet_operations nf_tables_ipv4_net_ops = {
         .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,
diff --git a/net/ipv4/netfilter/nft_chain_nat_ipv4.c b/net/ipv4/netfilter/nft_chain_nat_ipv4.c
index cf2c792cd971..9e535c2c2cd2 100644
--- a/net/ipv4/netfilter/nft_chain_nat_ipv4.c
+++ b/net/ipv4/netfilter/nft_chain_nat_ipv4.c
@@ -164,7 +164,7 @@ static unsigned int nf_nat_output(const struct nf_hook_ops *ops,
         return ret;
 }
 
-static struct nf_chain_type nft_chain_nat_ipv4 = {
+static const struct nf_chain_type nft_chain_nat_ipv4 = {
         .family         = NFPROTO_IPV4,
         .name           = "nat",
         .type           = NFT_CHAIN_T_NAT,
diff --git a/net/ipv4/netfilter/nft_chain_route_ipv4.c b/net/ipv4/netfilter/nft_chain_route_ipv4.c
index 4e6bf9a3d7aa..2dd2eeaad15f 100644
--- a/net/ipv4/netfilter/nft_chain_route_ipv4.c
+++ b/net/ipv4/netfilter/nft_chain_route_ipv4.c
@@ -61,7 +61,7 @@ static unsigned int nf_route_table_hook(const struct nf_hook_ops *ops,
         return ret;
 }
 
-static struct nf_chain_type nft_chain_route_ipv4 = {
+static const struct nf_chain_type nft_chain_route_ipv4 = {
         .family         = NFPROTO_IPV4,
         .name           = "route",
         .type           = NFT_CHAIN_T_ROUTE,