netdev - [PATCH] netfilter: nf_conntrack

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Message-Id: <20190304204019.2142770-1-arnd@arndb.de>
Date:   Mon,  4 Mar 2019 21:40:12 +0100
From:   Arnd Bergmann <arnd@...db.de>
To:     Pablo Neira Ayuso <pablo@...filter.org>,
        Jozsef Kadlecsik <kadlec@...ckhole.kfki.hu>,
        Florian Westphal <fw@...len.de>,
        "David S. Miller" <davem@...emloft.net>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Máté Eckl <ecklm94@...il.com>,
        Fernando Fernandez Mancera <ffmancera@...eup.net>,
        netfilter-devel@...r.kernel.org, coreteam@...filter.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] netfilter: nf_conntrack_sip: fix IPV6 dependency

With CONFIG_IPV6=m and CONFIG_NF_CONNTRACK_SIP=y, we now get a link failure:

net/netfilter/nf_conntrack_sip.o: In function `process_sdp':
nf_conntrack_sip.c:(.text+0x4344): undefined reference to `ip6_route_output_flags'

Fix this by adding a dependency that forces CONFIG_NF_CONNTRACK_SIP to be =m
when CONFIG_IPV6=m, as we already do for several other drivers with a similar
requirement.

Fixes: a3419ce3356c ("netfilter: nf_conntrack_sip: add sip_external_media logic")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 net/netfilter/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/netfilter/Kconfig b/net/netfilter/Kconfig
index d43ffb09939b..964bc317ad0a 100644
--- a/net/netfilter/Kconfig
+++ b/net/netfilter/Kconfig
@@ -333,6 +333,7 @@ config NF_CONNTRACK_SANE
 
 config NF_CONNTRACK_SIP
 	tristate "SIP protocol support"
+	depends on IPV6 || IPV6=n
 	default m if NETFILTER_ADVANCED=n
 	help
 	  SIP is an application-layer control protocol that can establish,
-- 
2.20.0