netronome: fix ipv6 link error

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>

diff --git a/drivers/net/ethernet/netronome/Kconfig b/drivers/net/ethernet/netronome/Kconfig
index bac5be4..a3f68a7 100644 (file)
--- 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.