netdev - [net-next 02/15] net/mlx5: Lag, Use mlx5_lag_dev() instead of derefering pointers

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Date:   Sat,  4 Feb 2023 02:08:41 -0800
From:   Saeed Mahameed <saeed@...nel.org>
To:     "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Eric Dumazet <edumazet@...gle.com>
Cc:     Saeed Mahameed <saeedm@...dia.com>, netdev@...r.kernel.org,
        Tariq Toukan <tariqt@...dia.com>, Roi Dayan <roid@...dia.com>,
        Maor Dickman <maord@...dia.com>
Subject: [net-next 02/15] net/mlx5: Lag, Use mlx5_lag_dev() instead of derefering pointers

From: Roi Dayan <roid@...dia.com>

Use the existing wrapper mlx5_lag_dev() to access the lag object from
dev for better maintainability and consistent code.

Signed-off-by: Roi Dayan <roid@...dia.com>
Reviewed-by: Maor Dickman <maord@...dia.com>
Signed-off-by: Saeed Mahameed <saeedm@...dia.com>
---
 .../net/ethernet/mellanox/mlx5/core/lag/debugfs.c    | 12 ++++++------
 drivers/net/ethernet/mellanox/mlx5/core/lag/lag.c    |  2 +-
 drivers/net/ethernet/mellanox/mlx5/core/lag/mpesw.c  |  7 ++++---
 3 files changed, 11 insertions(+), 10 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lag/debugfs.c b/drivers/net/ethernet/mellanox/mlx5/core/lag/debugfs.c
index b8feaf0f5c4c..f4b777d4e108 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/lag/debugfs.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/lag/debugfs.c
@@ -22,7 +22,7 @@ static int type_show(struct seq_file *file, void *priv)
 	struct mlx5_lag *ldev;
 	char *mode = NULL;
 
-	ldev = dev->priv.lag;
+	ldev = mlx5_lag_dev(dev);
 	mutex_lock(&ldev->lock);
 	if (__mlx5_lag_is_active(ldev))
 		mode = get_str_mode_type(ldev);
@@ -41,7 +41,7 @@ static int port_sel_mode_show(struct seq_file *file, void *priv)
 	int ret = 0;
 	char *mode;
 
-	ldev = dev->priv.lag;
+	ldev = mlx5_lag_dev(dev);
 	mutex_lock(&ldev->lock);
 	if (__mlx5_lag_is_active(ldev))
 		mode = mlx5_get_str_port_sel_mode(ldev->mode, ldev->mode_flags);
@@ -61,7 +61,7 @@ static int state_show(struct seq_file *file, void *priv)
 	struct mlx5_lag *ldev;
 	bool active;
 
-	ldev = dev->priv.lag;
+	ldev = mlx5_lag_dev(dev);
 	mutex_lock(&ldev->lock);
 	active = __mlx5_lag_is_active(ldev);
 	mutex_unlock(&ldev->lock);
@@ -77,7 +77,7 @@ static int flags_show(struct seq_file *file, void *priv)
 	bool shared_fdb;
 	bool lag_active;
 
-	ldev = dev->priv.lag;
+	ldev = mlx5_lag_dev(dev);
 	mutex_lock(&ldev->lock);
 	lag_active = __mlx5_lag_is_active(ldev);
 	if (!lag_active)
@@ -108,7 +108,7 @@ static int mapping_show(struct seq_file *file, void *priv)
 	int num_ports;
 	int i;
 
-	ldev = dev->priv.lag;
+	ldev = mlx5_lag_dev(dev);
 	mutex_lock(&ldev->lock);
 	lag_active = __mlx5_lag_is_active(ldev);
 	if (lag_active) {
@@ -142,7 +142,7 @@ static int members_show(struct seq_file *file, void *priv)
 	struct mlx5_lag *ldev;
 	int i;
 
-	ldev = dev->priv.lag;
+	ldev = mlx5_lag_dev(dev);
 	mutex_lock(&ldev->lock);
 	for (i = 0; i < ldev->ports; i++) {
 		if (!ldev->pf[i].dev)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lag/lag.c b/drivers/net/ethernet/mellanox/mlx5/core/lag/lag.c
index ad32b80e8501..b64c63e67a18 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/lag/lag.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/lag/lag.c
@@ -1187,7 +1187,7 @@ static int __mlx5_lag_dev_add_mdev(struct mlx5_core_dev *dev)
 
 	tmp_dev = mlx5_get_next_phys_dev_lag(dev);
 	if (tmp_dev)
-		ldev = tmp_dev->priv.lag;
+		ldev = mlx5_lag_dev(tmp_dev);
 
 	if (!ldev) {
 		ldev = mlx5_lag_dev_alloc(dev);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lag/mpesw.c b/drivers/net/ethernet/mellanox/mlx5/core/lag/mpesw.c
index d2f840812942..d2fec7233df9 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/lag/mpesw.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/lag/mpesw.c
@@ -58,7 +58,7 @@ static void mlx5_mpesw_work(struct work_struct *work)
 static int mlx5_lag_mpesw_queue_work(struct mlx5_core_dev *dev,
 				     enum mpesw_op op)
 {
-	struct mlx5_lag *ldev = dev->priv.lag;
+	struct mlx5_lag *ldev = mlx5_lag_dev(dev);
 	struct mlx5_mpesw_work_st *work;
 	int err = 0;
 
@@ -100,7 +100,7 @@ int mlx5_lag_mpesw_do_mirred(struct mlx5_core_dev *mdev,
 			     struct net_device *out_dev,
 			     struct netlink_ext_ack *extack)
 {
-	struct mlx5_lag *ldev = mdev->priv.lag;
+	struct mlx5_lag *ldev = mlx5_lag_dev(mdev);
 
 	if (!netif_is_bond_master(out_dev) || !ldev)
 		return 0;
@@ -114,9 +114,10 @@ int mlx5_lag_mpesw_do_mirred(struct mlx5_core_dev *mdev,
 
 bool mlx5_lag_mpesw_is_activated(struct mlx5_core_dev *dev)
 {
+	struct mlx5_lag *ldev = mlx5_lag_dev(dev);
 	bool ret;
 
-	ret = dev->priv.lag && dev->priv.lag->mode == MLX5_LAG_MODE_MPESW;
+	ret = ldev && ldev->mode == MLX5_LAG_MODE_MPESW;
 	return ret;
 }
 
-- 
2.39.1