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Message-Id: <20230514140010.3399219-1-trix@redhat.com>
Date:   Sun, 14 May 2023 10:00:10 -0400
From:   Tom Rix <trix@...hat.com>
To:     pablo@...filter.org, kadlec@...filter.org, fw@...len.de,
        davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
        pabeni@...hat.com
Cc:     netfilter-devel@...r.kernel.org, coreteam@...filter.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        Tom Rix <trix@...hat.com>
Subject: [PATCH] netfilter: conntrack: define variables exp_nat_nla_policy and any_addr with CONFIG_NF_NAT

gcc with W=1 and ! CONFIG_NF_NAT
net/netfilter/nf_conntrack_netlink.c:3463:32: error:
  ‘exp_nat_nla_policy’ defined but not used [-Werror=unused-const-variable=]
 3463 | static const struct nla_policy exp_nat_nla_policy[CTA_EXPECT_NAT_MAX+1] = {
      |                                ^~~~~~~~~~~~~~~~~~
net/netfilter/nf_conntrack_netlink.c:2979:33: error:
  ‘any_addr’ defined but not used [-Werror=unused-const-variable=]
 2979 | static const union nf_inet_addr any_addr;
      |                                 ^~~~~~~~

These variables use is controlled by CONFIG_NF_NAT, so should their definitions.

Signed-off-by: Tom Rix <trix@...hat.com>
---
 net/netfilter/nf_conntrack_netlink.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c
index d40544cd61a6..69c8c8c7e9b8 100644
--- a/net/netfilter/nf_conntrack_netlink.c
+++ b/net/netfilter/nf_conntrack_netlink.c
@@ -2976,7 +2976,9 @@ static int ctnetlink_exp_dump_mask(struct sk_buff *skb,
 	return -1;
 }
 
+#if IS_ENABLED(CONFIG_NF_NAT)
 static const union nf_inet_addr any_addr;
+#endif
 
 static __be32 nf_expect_get_id(const struct nf_conntrack_expect *exp)
 {
@@ -3460,10 +3462,12 @@ ctnetlink_change_expect(struct nf_conntrack_expect *x,
 	return 0;
 }
 
+#if IS_ENABLED(CONFIG_NF_NAT)
 static const struct nla_policy exp_nat_nla_policy[CTA_EXPECT_NAT_MAX+1] = {
 	[CTA_EXPECT_NAT_DIR]	= { .type = NLA_U32 },
 	[CTA_EXPECT_NAT_TUPLE]	= { .type = NLA_NESTED },
 };
+#endif
 
 static int
 ctnetlink_parse_expect_nat(const struct nlattr *attr,
-- 
2.27.0

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