4.1-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Eric Dumazet <[email protected]>

[ Upsteam commit 4671fc6d47e0a0108fe24a4d830347d6a6ef4aa7 ]

When changing rss key, we do not want to overwrite user provided key
by the one provided by netdev_rss_key_fill(), which is the host random
key generated at boot time.

Fixes: 947cbb0ac242 ("net/mlx4_en: Support for configurable RSS hash function")
Signed-off-by: Eric Dumazet <[email protected]>
Cc: Eyal Perry <[email protected]>
CC: Amir Vadai <[email protected]>
Acked-by: Or Gerlitz <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
 drivers/net/ethernet/mellanox/mlx4/en_rx.c |    2 --
 1 file changed, 2 deletions(-)

--- a/drivers/net/ethernet/mellanox/mlx4/en_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_rx.c
@@ -1256,8 +1256,6 @@ int mlx4_en_config_rss_steer(struct mlx4
                rss_context->hash_fn = MLX4_RSS_HASH_TOP;
                memcpy(rss_context->rss_key, priv->rss_key,
                       MLX4_EN_RSS_KEY_SIZE);
-               netdev_rss_key_fill(rss_context->rss_key,
-                                   MLX4_EN_RSS_KEY_SIZE);
        } else {
                en_err(priv, "Unknown RSS hash function requested\n");
                err = -EINVAL;


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