From 0eb16f82ecd40d4ce344ec882d6fb5c330f8ef39 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Wed, 11 Oct 2017 15:55:31 +0200 Subject: [PATCH] ip_tunnel: fix building with NET_IP_TUNNEL=m When af_mpls is built-in but the tunnel support is a module, we get a link failure: net/mpls/af_mpls.o: In function `mpls_init': af_mpls.c:(.init.text+0xdc): undefined reference to `ip_tunnel_encap_add_ops' This adds a Kconfig statement to prevent the broken configuration and force mpls to be a module as well in this case. Fixes: bdc476413dcd ("ip_tunnel: add mpls over gre support") Signed-off-by: Arnd Bergmann Acked-by: Amine Kherbouche Signed-off-by: David S. Miller --- net/mpls/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/net/mpls/Kconfig b/net/mpls/Kconfig index 5c467ef..801ea90 100644 --- a/net/mpls/Kconfig +++ b/net/mpls/Kconfig @@ -24,6 +24,7 @@ config NET_MPLS_GSO config MPLS_ROUTING tristate "MPLS: routing support" + depends on NET_IP_TUNNEL || NET_IP_TUNNEL=n ---help--- Add support for forwarding of mpls packets. -- 2.7.4