mlx5: fix null RSS key handling

Update function can be called with no key to enable or disable a RSS
protocol, or with a key to be applied to the desired protocols.

Fixes: 2f97422e7759 ("mlx5: support RSS hash update and get")

Signed-off-by: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>
Acked-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>

diff --git a/drivers/net/mlx5/mlx5_rss.c b/drivers/net/mlx5/mlx5_rss.c
index e73cd9d..639e935 100644 (file)
--- a/drivers/net/mlx5/mlx5_rss.c
+++ b/drivers/net/mlx5/mlx5_rss.c
@@ -156,12 +156,6 @@ mlx5_rss_hash_update(struct rte_eth_dev *dev,
                                                rss_conf->rss_key,
                                                rss_conf->rss_key_len,
                                                rss_conf->rss_hf);
-       else
-               err = rss_hash_rss_conf_new_key(priv,
-                                               rss_hash_default_key,
-                                               rss_hash_default_key_len,
-                                               ETH_RSS_PROTO_MASK);
-
        /* Store protocols for which RSS is enabled. */
        priv->rss_hf = rss_conf->rss_hf;
        priv_unlock(priv);