[PATCH net-next] net/mlx5e: skip loopback selftest with !CONFIG_INET

[Arnd Bergmann]

When CONFIG_INET is disabled, the new selftest results in a link
error:

drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.o: In function 
`mlx5e_test_loopback':
en_selftest.c:(.text.mlx5e_test_loopback+0x2ec): undefined reference to 
`ip_send_check'
en_selftest.c:(.text.mlx5e_test_loopback+0x34c): undefined reference to 
`udp4_hwcsum'

This hides the specific test in that configuration.

Fixes: 0952da791c97 ("net/mlx5e: Add support for loopback selftest")
Signed-off-by: Arnd Bergmann <a...@arndb.de>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_selftest.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_selftest.c 
b/drivers/net/ethernet/mellanox/mlx5/core/en_selftest.c
index c32af7daf3ff..65442c36a6e1 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_selftest.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_selftest.c
@@ -39,7 +39,9 @@ enum {
        MLX5E_ST_LINK_STATE,
        MLX5E_ST_LINK_SPEED,
        MLX5E_ST_HEALTH_INFO,
+#ifdef CONFIG_INET
        MLX5E_ST_LOOPBACK,
+#endif
        MLX5E_ST_NUM,
 };
 
@@ -47,7 +49,9 @@ const char mlx5e_self_tests[MLX5E_ST_NUM][ETH_GSTRING_LEN] = {
        "Link Test",
        "Speed Test",
        "Health Test",
+#ifdef CONFIG_INET
        "Loopback Test",
+#endif
 };
 
 int mlx5e_self_test_num(struct mlx5e_priv *priv)
@@ -93,6 +97,7 @@ static int mlx5e_test_link_speed(struct mlx5e_priv *priv)
        return 1;
 }
 
+#ifdef CONFIG_INET
 /* loopback test */
 #define MLX5E_TEST_PKT_SIZE (MLX5_MPWRQ_SMALL_PACKET_THRESHOLD - NET_IP_ALIGN)
 static const char mlx5e_test_text[ETH_GSTRING_LEN] = "MLX5E SELF TEST";
@@ -304,12 +309,15 @@ static int mlx5e_test_loopback(struct mlx5e_priv *priv)
        kfree(lbtp);
        return err;
 }
+#endif
 
 static int (*mlx5e_st_func[MLX5E_ST_NUM])(struct mlx5e_priv *) = {
        mlx5e_test_link_state,
        mlx5e_test_link_speed,
        mlx5e_test_health_info,
-       mlx5e_test_loopback
+#ifdef CONFIG_INET
+       mlx5e_test_loopback,
+#endif
 };
 
 void mlx5e_self_test(struct net_device *ndev, struct ethtool_test *etest,
-- 
2.9.0