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Subject[PATCH 3.12 06/83] net/mlx4_en: Fixed crash when port type is changed
Date
3.12-stable review patch.  If anyone has any objections, please let me know.

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

From: Amir Vadai <amirv@mellanox.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@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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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