From: Arnd Bergmann <a...@arndb.de> Date: Wed, 11 Oct 2017 15:55:31 +0200
> 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 <a...@arndb.de> Applied, thanks Arnd.