netfilter: fix NETFILTER_XT_TARGET_TEE dependencies
[ Upstream commit d1fa381033eb718df5c602f64b6e88676138dfc6 ] With NETFILTER_XT_TARGET_TEE=y and IP6_NF_IPTABLES=m, we get a link error when referencing the NF_DUP_IPV6 module: net/netfilter/xt_TEE.o: In function `tee_tg6': xt_TEE.c:(.text+0x14): undefined reference to `nf_dup_ipv6' The problem here is the 'select NF_DUP_IPV6 if IP6_NF_IPTABLES' that forces NF_DUP_IPV6 to be =m as well rather than setting it to =y as was intended here. Adding a soft dependency on IP6_NF_IPTABLES avoids that broken configuration. Fixes: 5d400a49 ("netfilter: Kconfig: Change select IPv6 dependencies") Cc: Máté Eckl <ecklm94@gmail.com> Cc: Taehee Yoo <ap420073@gmail.com> Link: https://patchwork.ozlabs.org/patch/999498/ Link: https://lore.kernel.org/patchwork/patch/960062/Reported-by: NRandy Dunlap <rdunlap@infradead.org> Reported-by: NStephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: NArnd Bergmann <arnd@arndb.de> Signed-off-by: NPablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: NSasha Levin (Microsoft) <sashal@kernel.org>
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