linux-kernel - [PATCH 3.10 02/58] net/mlx4_en: Fixed crash when port type is changed

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Date:	Fri,  6 Dec 2013 13:51:33 -0800
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Amir Vadai <amirv@...lanox.com>,
	"David S. Miller" <davem@...emloft.net>
Subject: [PATCH 3.10 02/58] net/mlx4_en: Fixed crash when port type is changed

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

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

From: Amir Vadai <amirv@...lanox.com>

[ Upstream commit 1ec4864b10171b0691ee196d7006ae56d2c153f2 ]

timecounter_init() was was called only after first potential
timecounter_read().
Moved mlx4_en_init_timestamp() before mlx4_en_init_netdev()

Signed-off-by: Amir Vadai <amirv@...lanox.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/net/ethernet/mellanox/mlx4/en_main.c |    8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

--- a/drivers/net/ethernet/mellanox/mlx4/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_main.c
@@ -264,6 +264,10 @@ static void *mlx4_en_add(struct mlx4_dev
 	mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_ETH)
 		mdev->port_cnt++;
 
+	/* Initialize time stamp mechanism */
+	if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS)
+		mlx4_en_init_timestamp(mdev);
+
 	mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_ETH) {
 		if (!dev->caps.comp_pool) {
 			mdev->profile.prof[i].rx_ring_num =
@@ -301,10 +305,6 @@ static void *mlx4_en_add(struct mlx4_dev
 			mdev->pndev[i] = NULL;
 	}
 
-	/* Initialize time stamp mechanism */
-	if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS)
-		mlx4_en_init_timestamp(mdev);
-
 	return mdev;
 
 err_mr:


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