--- /dev/null
+From 02e7d139e5e24abb5fde91934fc9dc0344ac1926 Mon Sep 17 00:00:00 2001
+From: Patrisious Haddad <phaddad@nvidia.com>
+Date: Thu, 19 Oct 2023 11:47:05 +0300
+Subject: RDMA/mlx5: Change the key being sent for MPV device affiliation
+
+From: Patrisious Haddad <phaddad@nvidia.com>
+
+commit 02e7d139e5e24abb5fde91934fc9dc0344ac1926 upstream.
+
+Change the key that we send from IB driver to EN driver regarding the
+MPV device affiliation, since at that stage the IB device is not yet
+initialized, so its index would be zero for different IB devices and
+cause wrong associations between unrelated master and slave devices.
+
+Instead use a unique value from inside the core device which is already
+initialized at this stage.
+
+Fixes: 0d293714ac32 ("RDMA/mlx5: Send events from IB driver about device affiliation state")
+Signed-off-by: Patrisious Haddad <phaddad@nvidia.com>
+Link: https://lore.kernel.org/r/ac7e66357d963fc68d7a419515180212c96d137d.1697705185.git.leon@kernel.org
+Signed-off-by: Leon Romanovsky <leon@kernel.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/infiniband/hw/mlx5/main.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/infiniband/hw/mlx5/main.c
++++ b/drivers/infiniband/hw/mlx5/main.c
+@@ -3263,7 +3263,7 @@ static bool mlx5_ib_bind_slave_port(stru
+
+ mlx5_ib_init_cong_debugfs(ibdev, port_num);
+
+- key = ibdev->ib_dev.index;
++ key = mpi->mdev->priv.adev_idx;
+ mlx5_core_mp_event_replay(mpi->mdev,
+ MLX5_DRIVER_EVENT_AFFILIATION_DONE,
+ &key);