netfilter: xt_TEE: use IS_ENABLED(CONFIG_NF_DUP_IPV6)

Instead of IS_ENABLED(CONFIG_IPV6), otherwise we hit:

et/built-in.o: In function `tee_tg6':
>> xt_TEE.c:(.text+0x6cd8c): undefined reference to `nf_dup_ipv6'

when:

 CONFIG_IPV6=y
 CONFIG_NF_DUP_IPV4=y
 # CONFIG_NF_DUP_IPV6 is not set
 CONFIG_NETFILTER_XT_TARGET_TEE=y

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

diff --git a/net/netfilter/xt_TEE.c b/net/netfilter/xt_TEE.c
index 49fee6aa2c0aa03b8af6bf9c3358d300d8b9ac7c..fd980aa7715dc76d66b75bf53b158c07b3a147ed 100644 (file)
--- a/net/netfilter/xt_TEE.c
+++ b/net/netfilter/xt_TEE.c
@@ -37,7 +37,7 @@ tee_tg4(struct sk_buff *skb, const struct xt_action_param *par)
        return XT_CONTINUE;
 }
 
-#if IS_ENABLED(CONFIG_IPV6)
+#if IS_ENABLED(CONFIG_NF_DUP_IPV6)
 static unsigned int
 tee_tg6(struct sk_buff *skb, const struct xt_action_param *par)
 {
@@ -129,7 +129,7 @@ static struct xt_target tee_tg_reg[] __read_mostly = {
                .destroy    = tee_tg_destroy,
                .me         = THIS_MODULE,
        },
-#if IS_ENABLED(CONFIG_IPV6)
+#if IS_ENABLED(CONFIG_NF_DUP_IPV6)
        {
                .name       = "TEE",
                .revision   = 1,