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| author | Arnd Bergmann <arnd@arndb.de> | 2016-05-25 16:50:46 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-05-29 22:24:21 -0700 |
| commit | fabb13db448efc23c47851550867fc46519de97e (patch) | |
| tree | c5c7d5c0de0e26e5d1809606f23fa9603d69dbfb /net/ipv6/Kconfig | |
| parent | 9791d8e7627d1c4dbf8819646833f2f576b4f8f3 (diff) | |
| download | lwn-fabb13db448efc23c47851550867fc46519de97e.tar.gz lwn-fabb13db448efc23c47851550867fc46519de97e.zip | |
fou: add Kconfig options for IPv6 support
A previous patch added the fou6.ko module, but that failed to link
in a couple of configurations:
net/built-in.o: In function `ip6_tnl_encap_add_fou_ops':
net/ipv6/fou6.c:88: undefined reference to `ip6_tnl_encap_add_ops'
net/ipv6/fou6.c:94: undefined reference to `ip6_tnl_encap_add_ops'
net/ipv6/fou6.c:97: undefined reference to `ip6_tnl_encap_del_ops'
net/built-in.o: In function `ip6_tnl_encap_del_fou_ops':
net/ipv6/fou6.c:106: undefined reference to `ip6_tnl_encap_del_ops'
net/ipv6/fou6.c:107: undefined reference to `ip6_tnl_encap_del_ops'
If CONFIG_IPV6=m, ip6_tnl_encap_add_ops/ip6_tnl_encap_del_ops
are in a module, but fou6.c can still be built-in, and that
obviously fails to link.
Also, if CONFIG_IPV6=y, but CONFIG_IPV6_TUNNEL=m or
CONFIG_IPV6_TUNNEL=n, the same problem happens for a different
reason.
This adds two new silent Kconfig symbols to work around both
problems:
- CONFIG_IPV6_FOU is now always set to 'm' if either CONFIG_NET_FOU=m
or CONFIG_IPV6=m
- CONFIG_IPV6_FOU_TUNNEL is set implicitly when IPV6_FOU is enabled
and NET_FOU_IP_TUNNELS is also turned out, and it will ensure
that CONFIG_IPV6_TUNNEL is also available.
The options could be made user-visible as well, to give additional
room for configuration, but it seems easier not to bother users
with more choice here.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: aa3463d65e7b ("fou: Add encap ops for IPv6 tunnels")
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/Kconfig')
| -rw-r--r-- | net/ipv6/Kconfig | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/net/ipv6/Kconfig b/net/ipv6/Kconfig index 3f8411328de5..994608263260 100644 --- a/net/ipv6/Kconfig +++ b/net/ipv6/Kconfig @@ -232,6 +232,15 @@ config IPV6_GRE Saying M here will produce a module called ip6_gre. If unsure, say N. +config IPV6_FOU + tristate + default NET_FOU && IPV6 + +config IPV6_FOU_TUNNEL + tristate + default NET_FOU_IP_TUNNELS && IPV6_FOU + select INET6_TUNNEL + config IPV6_MULTIPLE_TABLES bool "IPv6: Multiple Routing Tables" select FIB_RULES |