lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:	Mon, 12 May 2014 10:43:18 +0300
From:	Amir Vadai <>
To:	"David S. Miller" <>
Cc:, Amir Vadai <>,
	Yevgeny Petrilin <>,
	Or Gerlitz <>,
	Ido Shamay <>
Subject: [PATCH net-next 2/9] net/mlx4_en: User prio mapping gets corrupted when changing number of channels

From: Ido Shamay <>

When using ethtool set_channels, mlx4_en_setup_tc is always called, even
when it was not configured. Fixed code to call mlx4_en_setup_tc() only if

Signed-off-by: Ido Shamay <>
Signed-off-by: Amir Vadai <>
 drivers/net/ethernet/mellanox/mlx4/en_ethtool.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c
index c373604..a72d99f 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c
@@ -1151,7 +1151,8 @@ static int mlx4_en_set_channels(struct net_device *dev,
 	netif_set_real_num_tx_queues(dev, priv->tx_ring_num);
 	netif_set_real_num_rx_queues(dev, priv->rx_ring_num);
-	mlx4_en_setup_tc(dev, MLX4_EN_NUM_UP);
+	if (dev->num_tc)
+		mlx4_en_setup_tc(dev, MLX4_EN_NUM_UP);
 	en_warn(priv, "Using %d TX rings\n", priv->tx_ring_num);
 	en_warn(priv, "Using %d RX rings\n", priv->rx_ring_num);

To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to
More majordomo info at

Powered by blists - more mailing lists