netdev - [PATCH v2 net] net/mlx4_en: really allow to change RSS key

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Message-ID: <1442366987.4116.37.camel@edumazet-glaptop2.roam.corp.google.com>
Date:	Tue, 15 Sep 2015 18:29:47 -0700
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	David Miller <davem@...emloft.net>
Cc:	netdev <netdev@...r.kernel.org>, Eyal Perry <eyalpe@...lanox.com>,
	Amir Vadai <amirv@...lanox.com>
Subject: [PATCH v2 net] net/mlx4_en: really allow to change RSS key

From: Eric Dumazet <edumazet@...gle.com>

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 <edumazet@...gle.com>
Cc: Eyal Perry <eyalpe@...lanox.com>
CC: Amir Vadai <amirv@...lanox.com>
---
 drivers/net/ethernet/mellanox/mlx4/en_rx.c |    2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx4/en_rx.c b/drivers/net/ethernet/mellanox/mlx4/en_rx.c
index 4402a1e48c9b..0ce6ffe73ca8 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_rx.c
@@ -1268,8 +1268,6 @@ int mlx4_en_config_rss_steer(struct mlx4_en_priv *priv)
 		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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