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From:   Arnd Bergmann <arnd@arndb.de>
To:     Jakub Kicinski <jakub.kicinski@netronome.com>,
        "David S. Miller" <davem@davemloft.net>,
        Simon Horman <simon.horman@netronome.com>,
        John Hurley <john.hurley@netronome.com>
Cc:     Arnd Bergmann <arnd@arndb.de>, Jiri Pirko <jiri@mellanox.com>,
        Florian Fainelli <f.fainelli@gmail.com>,
        oss-drivers@netronome.com, netdev@vger.kernel.org,
        linux-kernel@vger.kernel.org
Subject: [PATCH] netronome: fix ipv6 link error
Date:   Tue,  7 Jan 2020 21:06:40 +0100
Message-Id: <20200107200659.3538375-1-arnd@arndb.de>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

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")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 drivers/net/ethernet/netronome/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/netronome/Kconfig b/drivers/net/ethernet/netronome/Kconfig
index bac5be4d4f43..dcb02ce28460 100644
--- 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.
-- 
2.20.0