From: Leon Romanovsky <leonro@xxxxxxxxxx>
The mlx5_ib_bind_slave_port() doesn't remove multiport device from the
unaffiliated list, but mlx5_ib_unbind_slave_port() did it. This unbalanced
flow caused to the situation where mlx5_ib_unaffiliated_port_list was changed
during iteration.
Fixes: 32f69e4be269 ("{net, IB}/mlx5: Manage port association for multiport RoCE")
Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Signed-off-by: Leon Romanovsky <leonro@xxxxxxxxxx>
---
drivers/infiniband/hw/mlx5/main.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index 9357ed28813c..e541a9f5f163 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -3192,8 +3192,6 @@ static void mlx5_ib_unbind_slave_port(struct mlx5_ib_dev *ibdev,
port->mp.mpi = NULL;
- list_add_tail(&mpi->list, &mlx5_ib_unaffiliated_port_list);
-
spin_unlock(&port->mp.mpi_lock);
err = mlx5_nic_vport_unaffiliate_multiport(mpi->mdev);
@@ -3342,6 +3340,8 @@ static void mlx5_ib_cleanup_multiport_master(struct mlx5_ib_dev *dev)
mlx5_ib_dbg(dev, "unbinding port_num: %u\n",
i + 1);
mlx5_ib_unbind_slave_port(dev, dev->port[i].mp.mpi);
+ list_add_tail(&dev->port[i].mp.mpi->list,
+ &mlx5_ib_unaffiliated_port_list);
}
}
}
--
2.31.1
