[IPV6] NDISC: Don't rely on node-type hint from L2 unless required.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>

1 files changed, 4 insertions, 0 deletions

diff --git a/net/ipv6/Kconfig b/net/ipv6/Kconfig
index 47263e45bacb..7d2e7f0941ac 100644
--- a/net/ipv6/Kconfig
+++ b/net/ipv6/Kconfig
@@ -168,6 +168,7 @@ config IPV6_SIT
         tristate "IPv6: IPv6-in-IPv4 tunnel (SIT driver)"
         depends on IPV6
         select INET_TUNNEL
+        select IPV6_NDISC_NODETYPE
         default y
         ---help---
           Tunneling means encapsulating data of one protocol type within
@@ -178,6 +179,9 @@ config IPV6_SIT
 
           Saying M here will produce a module called sit.ko. If unsure, say Y.
 
+config IPV6_NDISC_NODETYPE
+        bool
+
 config IPV6_TUNNEL
         tristate "IPv6: IP-in-IPv6 tunnel (RFC2473)"
         select INET6_TUNNEL