[PATCH] netfilter: nft_tproxy: Add missing config check

From: MÃtà Eckl
Date: Thu Aug 02 2018 - 14:46:13 EST

A config check was missing form the code when using
nf_defrag_ipv6_enable with NFT_TPROXY != n and NF_DEFRAG_IPV6 = n and
this caused the following error in case of :

../net/netfilter/nft_tproxy.c: In function 'nft_tproxy_init':
../net/netfilter/nft_tproxy.c:237:3: error: implicit declaration of function
+'nf_defrag_ipv6_enable' [-Werror=implicit-function-declaration]
err = nf_defrag_ipv6_enable(ctx->net);

This patch adds a check for NF_TABLES_IPV6 when NF_DEFRAG_IPV6 is
selected by Kconfig.

Reported-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Fixes: 4ed8eb6570a4 ("netfilter: nf_tables: Add native tproxy support")
Signed-off-by: Má Eckl <ecklm94@xxxxxxxxx>
net/netfilter/nft_tproxy.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/net/netfilter/nft_tproxy.c b/net/netfilter/nft_tproxy.c
index c6845f7baa08..eff99dffc842 100644
--- a/net/netfilter/nft_tproxy.c
+++ b/net/netfilter/nft_tproxy.c
@@ -234,9 +234,11 @@ static int nft_tproxy_init(const struct nft_ctx *ctx,
err = nf_defrag_ipv4_enable(ctx->net);
if (err)
return err;
err = nf_defrag_ipv6_enable(ctx->net);
if (err)
return err;