linux-kernel - [PATCH AUTOSEL 5.6 229/606] net/mlx5e: kTLS, Destroy key object after destroying the TIS

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Date:   Mon,  8 Jun 2020 19:05:54 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Tariq Toukan <tariqt@...lanox.com>,
        Boris Pismenny <borisp@...lanox.com>,
        Saeed Mahameed <saeedm@...lanox.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        netdev@...r.kernel.org, linux-rdma@...r.kernel.org
Subject: [PATCH AUTOSEL 5.6 229/606] net/mlx5e: kTLS, Destroy key object after destroying the TIS

From: Tariq Toukan <tariqt@...lanox.com>

[ Upstream commit 16736e11f43b80a38f98f6add54fab3b8c297df3 ]

The TLS TIS object contains the dek/key ID.
By destroying the key first, the TIS would contain an invalid
non-existing key ID.
Reverse the destroy order, this also acheives the desired assymetry
between the destroy and the create flows.

Fixes: d2ead1f360e8 ("net/mlx5e: Add kTLS TX HW offload support")
Signed-off-by: Tariq Toukan <tariqt@...lanox.com>
Reviewed-by: Boris Pismenny <borisp@...lanox.com>
Signed-off-by: Saeed Mahameed <saeedm@...lanox.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls.c b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls.c
index 46725cd743a3..7d1985fa0d4f 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls.c
@@ -69,8 +69,8 @@ static void mlx5e_ktls_del(struct net_device *netdev,
 	struct mlx5e_ktls_offload_context_tx *tx_priv =
 		mlx5e_get_ktls_tx_priv_ctx(tls_ctx);
 
-	mlx5_ktls_destroy_key(priv->mdev, tx_priv->key_id);
 	mlx5e_destroy_tis(priv->mdev, tx_priv->tisn);
+	mlx5_ktls_destroy_key(priv->mdev, tx_priv->key_id);
 	kvfree(tx_priv);
 }
 
-- 
2.25.1