From: Leon Romanovsky <leonro@nvidia.com>
Date: Sun, 6 Mar 2022 14:41:38 +0200
Subject: net/mlx5: Simplify IPsec flow steering init/cleanup functions
Patch-mainline: v5.19-rc1
Git-commit: 301e0be800be425c5fa4f384f9f0e9b23109f809
References: jsc#PED-1549

Remove multiple function wrappers to make sure that IPsec FS initialization
and cleanup functions present in one place to help with code readability.

Reviewed-by: Raed Salem <raeds@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.c    |    4 
 drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_fs.c |   73 +++---------
 drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_fs.h |    4 
 3 files changed, 27 insertions(+), 54 deletions(-)

--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.c
@@ -424,7 +424,7 @@ int mlx5e_ipsec_init(struct mlx5e_priv *
 	}
 
 	priv->ipsec = ipsec;
-	mlx5e_accel_ipsec_fs_init(priv);
+	mlx5e_accel_ipsec_fs_init(ipsec);
 	netdev_dbg(priv->netdev, "IPSec attached to netdevice\n");
 	return 0;
 }
@@ -436,7 +436,7 @@ void mlx5e_ipsec_cleanup(struct mlx5e_pr
 	if (!ipsec)
 		return;
 
-	mlx5e_accel_ipsec_fs_cleanup(priv);
+	mlx5e_accel_ipsec_fs_cleanup(ipsec);
 	destroy_workqueue(ipsec->wq);
 
 	kfree(ipsec);
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_fs.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_fs.c
@@ -632,81 +632,54 @@ void mlx5e_accel_ipsec_fs_del_rule(struc
 		tx_del_rule(priv, ipsec_rule);
 }
 
-static void fs_cleanup_tx(struct mlx5e_priv *priv)
-{
-	mutex_destroy(&priv->ipsec->tx_fs->mutex);
-	WARN_ON(priv->ipsec->tx_fs->refcnt);
-	kfree(priv->ipsec->tx_fs);
-	priv->ipsec->tx_fs = NULL;
-}
-
-static void fs_cleanup_rx(struct mlx5e_priv *priv)
+void mlx5e_accel_ipsec_fs_cleanup(struct mlx5e_ipsec *ipsec)
 {
 	struct mlx5e_accel_fs_esp_prot *fs_prot;
 	struct mlx5e_accel_fs_esp *accel_esp;
 	enum accel_fs_esp_type i;
 
-	accel_esp = priv->ipsec->rx_fs;
+	if (!ipsec->rx_fs)
+		return;
+
+	mutex_destroy(&ipsec->tx_fs->mutex);
+	WARN_ON(ipsec->tx_fs->refcnt);
+	kfree(ipsec->tx_fs);
+
+	accel_esp = ipsec->rx_fs;
 	for (i = 0; i < ACCEL_FS_ESP_NUM_TYPES; i++) {
 		fs_prot = &accel_esp->fs_prot[i];
 		mutex_destroy(&fs_prot->prot_mutex);
 		WARN_ON(fs_prot->refcnt);
 	}
-	kfree(priv->ipsec->rx_fs);
-	priv->ipsec->rx_fs = NULL;
-}
-
-static int fs_init_tx(struct mlx5e_priv *priv)
-{
-	priv->ipsec->tx_fs =
-		kzalloc(sizeof(struct mlx5e_ipsec_tx), GFP_KERNEL);
-	if (!priv->ipsec->tx_fs)
-		return -ENOMEM;
-
-	mutex_init(&priv->ipsec->tx_fs->mutex);
-	return 0;
+	kfree(ipsec->rx_fs);
 }
 
-static int fs_init_rx(struct mlx5e_priv *priv)
+int mlx5e_accel_ipsec_fs_init(struct mlx5e_ipsec *ipsec)
 {
 	struct mlx5e_accel_fs_esp_prot *fs_prot;
 	struct mlx5e_accel_fs_esp *accel_esp;
 	enum accel_fs_esp_type i;
+	int err = -ENOMEM;
 
-	priv->ipsec->rx_fs =
-		kzalloc(sizeof(struct mlx5e_accel_fs_esp), GFP_KERNEL);
-	if (!priv->ipsec->rx_fs)
+	ipsec->tx_fs = kzalloc(sizeof(*ipsec->tx_fs), GFP_KERNEL);
+	if (!ipsec->tx_fs)
 		return -ENOMEM;
 
-	accel_esp = priv->ipsec->rx_fs;
+	ipsec->rx_fs = kzalloc(sizeof(*ipsec->rx_fs), GFP_KERNEL);
+	if (!ipsec->rx_fs)
+		goto err_rx;
+
+	mutex_init(&ipsec->tx_fs->mutex);
+
+	accel_esp = ipsec->rx_fs;
 	for (i = 0; i < ACCEL_FS_ESP_NUM_TYPES; i++) {
 		fs_prot = &accel_esp->fs_prot[i];
 		mutex_init(&fs_prot->prot_mutex);
 	}
 
 	return 0;
-}
-
-void mlx5e_accel_ipsec_fs_cleanup(struct mlx5e_priv *priv)
-{
-	if (!priv->ipsec->rx_fs)
-		return;
-
-	fs_cleanup_tx(priv);
-	fs_cleanup_rx(priv);
-}
-
-int mlx5e_accel_ipsec_fs_init(struct mlx5e_priv *priv)
-{
-	int err;
-
-	err = fs_init_tx(priv);
-	if (err)
-		return err;
-
-	err = fs_init_rx(priv);
-	if (err)
-		fs_cleanup_tx(priv);
 
+err_rx:
+	kfree(ipsec->tx_fs);
 	return err;
 }
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_fs.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_fs.h
@@ -9,8 +9,8 @@
 #include "ipsec_offload.h"
 #include "en/fs.h"
 
-void mlx5e_accel_ipsec_fs_cleanup(struct mlx5e_priv *priv);
-int mlx5e_accel_ipsec_fs_init(struct mlx5e_priv *priv);
+void mlx5e_accel_ipsec_fs_cleanup(struct mlx5e_ipsec *ipsec);
+int mlx5e_accel_ipsec_fs_init(struct mlx5e_ipsec *ipsec);
 int mlx5e_accel_ipsec_fs_add_rule(struct mlx5e_priv *priv,
 				  struct mlx5_accel_esp_xfrm_attrs *attrs,
 				  u32 ipsec_obj_id,