net/mlx5e: Add mqprio_rl cleanup and free in mlx5e_priv_cleanup()

JIRA: https://issues.redhat.com/browse/RHEL-45365
Upstream-status: v6.10-rc7

commit 1da839e
Author: Jianbo Liu <jianbol@nvidia.com>
Date:   Thu Jun 27 21:02:38 2024 +0300

    net/mlx5e: Add mqprio_rl cleanup and free in mlx5e_priv_cleanup()

    In the cited commit, mqprio_rl cleanup and free are mistakenly removed
    in mlx5e_priv_cleanup(), and it causes the leakage of host memory and
    firmware SCHEDULING_ELEMENT objects while changing eswitch mode. So,
    add them back.

    Fixes: 0bb7228 ("net/mlx5e: Fix mqprio_rl handling on devlink reload")
    Signed-off-by: Jianbo Liu <jianbol@nvidia.com>
    Reviewed-by: Dragos Tatulea <dtatulea@nvidia.com>
    Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
    Signed-off-by: David S. Miller <davem@davemloft.net>

Signed-off-by: Benjamin Poirier <bpoirier@redhat.com>

Author: Benjamin Poirier

drivers/net/ethernet/mellanox/mlx5/core/en_main.c

@@ -5701,6 +5701,11 @@ void mlx5e_priv_cleanup(struct mlx5e_priv *priv)
 		kfree(priv->htb_qos_sq_stats[i]);
 	kvfree(priv->htb_qos_sq_stats);
 
+	if (priv->mqprio_rl) {
+		mlx5e_mqprio_rl_cleanup(priv->mqprio_rl);
+		mlx5e_mqprio_rl_free(priv->mqprio_rl);
+	}
+
 	memset(priv, 0, sizeof(*priv));
 }