[PATCH net-next] net/mlx5i: avoid unused function warning for mlx5i_flow_type_mask

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From: Arnd Bergmann <arnd@xxxxxxxx>

Without CONFIG_MLX5_EN_RXNFC, the function is unused, breaking the
build with CONFIG_WERROR:

mlx5/core/ipoib/ethtool.c:36:12: error: unused function 'mlx5i_flow_type_mask' [-Werror,-Wunused-function]
static u32 mlx5i_flow_type_mask(u32 flow_type)

We could add another #ifdef or mark this function inline, but
replacing the existing #ifdef with a __maybe_unused seems best
because that improves build coverage and avoids introducing
similar problems the next time this code changes.

Fixes: 9fbe1c25ecca ("net/mlx5i: Enable Rx steering for IPoIB via ethtool")
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
 .../net/ethernet/mellanox/mlx5/core/ipoib/ethtool.c    | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ethtool.c b/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ethtool.c
index ee0eb4a4b819..ae95677a01f0 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ethtool.c
@@ -222,8 +222,8 @@ static int mlx5i_get_link_ksettings(struct net_device *netdev,
 	return 0;
 }
 
-#ifdef CONFIG_MLX5_EN_RXNFC
-static int mlx5i_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
+static __maybe_unused int mlx5i_set_rxnfc(struct net_device *dev,
+					  struct ethtool_rxnfc *cmd)
 {
 	struct mlx5e_priv *priv = mlx5i_epriv(dev);
 	struct ethtool_rx_flow_spec *fs = &cmd->fs;
@@ -234,14 +234,14 @@ static int mlx5i_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
 	return mlx5e_ethtool_set_rxnfc(priv, cmd);
 }
 
-static int mlx5i_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *info,
-			   u32 *rule_locs)
+static __maybe_unused int mlx5i_get_rxnfc(struct net_device *dev,
+					  struct ethtool_rxnfc *info,
+					  u32 *rule_locs)
 {
 	struct mlx5e_priv *priv = mlx5i_epriv(dev);
 
 	return mlx5e_ethtool_get_rxnfc(priv, info, rule_locs);
 }
-#endif
 
 const struct ethtool_ops mlx5i_ethtool_ops = {
 	.supported_coalesce_params = ETHTOOL_COALESCE_USECS |
-- 
2.29.2




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