From: Arnd Bergmann <arnd@arndb.de>
Date: Wed, 8 Jan 2020 14:15:15 +0100
Subject: netronome: fix ipv6 link error
Patch-mainline: v5.6-rc1
Git-commit: ea217e874aef6aa523331a9b5a8d49223460cf3e
References: bsc#1176447

When the driver is built-in but ipv6 is a module, the flower
support produces a link error:

drivers/net/ethernet/netronome/nfp/flower/tunnel_conf.o: In function `nfp_tunnel_keep_alive_v6':
tunnel_conf.c:(.text+0x2aa8): undefined reference to `nd_tbl'

Add a Kconfig dependency to avoid that configuration.

Fixes: 9ea9bfa12240 ("nfp: flower: support ipv6 tunnel keep-alive messages from fw")
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/netronome/Kconfig |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/net/ethernet/netronome/Kconfig
+++ b/drivers/net/ethernet/netronome/Kconfig
@@ -31,6 +31,7 @@ config NFP_APP_FLOWER
 	bool "NFP4000/NFP6000 TC Flower offload support"
 	depends on NFP
 	depends on NET_SWITCHDEV
+	depends on IPV6!=m || NFP=m
 	default y
 	---help---
 	  Enable driver support for TC Flower offload on NFP4000 and NFP6000.