From: Leon Romanovsky <leonro@nvidia.com>
Date: Tue, 14 Sep 2021 15:58:28 +0300
Subject: net/mlx5: Publish and unpublish all devlink parameters at once
Patch-mainline: v5.16-rc1
Git-commit: e9310aed8e6a5003abb2aa6b9229d2fb9ceb9e85
References: jsc#SLE-19253

The devlink parameters were published in two steps despite being static
and known in advance.

First step was to use devlink_params_publish() which iterated over all
known up to that point parameters and sent notification messages.
In second step, the call was devlink_param_publish() that looped over
same parameters list and sent notification for new parameters.

In order to simplify the API, move devlink_params_publish() to be called
when all parameters were already added and save the need to iterate over
parameters list again.

As a side effect, this change fixes the error unwind flow in which
parameters were not marked as unpublished.

Fixes: 82e6c96f04e1 ("net/mlx5: Register to devlink ingress VLAN filter trap")
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/mellanox/mlx5/core/devlink.c |   10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

--- a/drivers/net/ethernet/mellanox/mlx5/core/devlink.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/devlink.c
@@ -625,7 +625,6 @@ static int mlx5_devlink_eth_param_regist
 	devlink_param_driverinit_value_set(devlink,
 					   DEVLINK_PARAM_GENERIC_ID_ENABLE_ETH,
 					   value);
-	devlink_param_publish(devlink, &enable_eth_param);
 	return 0;
 }
 
@@ -636,7 +635,6 @@ static void mlx5_devlink_eth_param_unreg
 	if (!mlx5_eth_supported(dev))
 		return;
 
-	devlink_param_unpublish(devlink, &enable_eth_param);
 	devlink_param_unregister(devlink, &enable_eth_param);
 }
 
@@ -672,7 +670,6 @@ static int mlx5_devlink_rdma_param_regis
 	devlink_param_driverinit_value_set(devlink,
 					   DEVLINK_PARAM_GENERIC_ID_ENABLE_RDMA,
 					   value);
-	devlink_param_publish(devlink, &enable_rdma_param);
 	return 0;
 }
 
@@ -681,7 +678,6 @@ static void mlx5_devlink_rdma_param_unre
 	if (!IS_ENABLED(CONFIG_MLX5_INFINIBAND))
 		return;
 
-	devlink_param_unpublish(devlink, &enable_rdma_param);
 	devlink_param_unregister(devlink, &enable_rdma_param);
 }
 
@@ -706,7 +702,6 @@ static int mlx5_devlink_vnet_param_regis
 	devlink_param_driverinit_value_set(devlink,
 					   DEVLINK_PARAM_GENERIC_ID_ENABLE_VNET,
 					   value);
-	devlink_param_publish(devlink, &enable_rdma_param);
 	return 0;
 }
 
@@ -717,7 +712,6 @@ static void mlx5_devlink_vnet_param_unre
 	if (!mlx5_vnet_supported(dev))
 		return;
 
-	devlink_param_unpublish(devlink, &enable_vnet_param);
 	devlink_param_unregister(devlink, &enable_vnet_param);
 }
 
@@ -808,7 +802,6 @@ int mlx5_devlink_register(struct devlink
 	if (err)
 		goto params_reg_err;
 	mlx5_devlink_set_params_init_values(devlink);
-	devlink_params_publish(devlink);
 
 	err = mlx5_devlink_auxdev_params_register(devlink);
 	if (err)
@@ -818,6 +811,7 @@ int mlx5_devlink_register(struct devlink
 	if (err)
 		goto traps_reg_err;
 
+	devlink_params_publish(devlink);
 	return 0;
 
 traps_reg_err:
@@ -832,9 +826,9 @@ params_reg_err:
 
 void mlx5_devlink_unregister(struct devlink *devlink)
 {
+	devlink_params_unpublish(devlink);
 	mlx5_devlink_traps_unregister(devlink);
 	mlx5_devlink_auxdev_params_unregister(devlink);
-	devlink_params_unpublish(devlink);
 	devlink_params_unregister(devlink, mlx5_devlink_params,
 				  ARRAY_SIZE(mlx5_devlink_params));
 	devlink_unregister(devlink);