Subject: [PATCH net-next V4 3/8] net/mlx5: Drop extra layer of locks in IPsec

From: Saeed Mahameed <[email-masked]>
Date: Thu, 24 Aug 2023 23:28:31 -0700

From: Leon Romanovsky <[email-masked]>

There is no need in holding devlink lock as it gives nothing
compared to already used write mode_lock.

Signed-off-by: Leon Romanovsky <[email-masked]>
Signed-off-by: Saeed Mahameed <[email-masked]>
---
 .../mellanox/mlx5/core/eswitch_offloads.c      | 18 ++++--------------
 1 file changed, 4 insertions(+), 14 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
index 67eab99f95b1..28c4b9724e38 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
@@ -3903,38 +3903,28 @@ int mlx5_devlink_eswitch_inline_mode_get(struct devlink *devlink, u8 *mode)
 
 bool mlx5_eswitch_block_encap(struct mlx5_core_dev *dev)
 {
-	struct devlink *devlink = priv_to_devlink(dev);
-	struct mlx5_eswitch *esw;
+	struct mlx5_eswitch *esw = dev->priv.eswitch;
 
-	devl_lock(devlink);
-	esw = mlx5_devlink_eswitch_get(devlink);
-	if (IS_ERR(esw)) {
-		devl_unlock(devlink);
-		/* Failure means no eswitch => not possible to change encap */
+	if (!mlx5_esw_allowed(esw))
 		return true;
-	}
 
 	down_write(&esw->mode_lock);
 	if (esw->mode != MLX5_ESWITCH_LEGACY &&
 	    esw->offloads.encap != DEVLINK_ESWITCH_ENCAP_MODE_NONE) {
 		up_write(&esw->mode_lock);
-		devl_unlock(devlink);
 		return false;
 	}
 
 	esw->offloads.num_block_encap++;
 	up_write(&esw->mode_lock);
-	devl_unlock(devlink);
 	return true;
 }
 
 void mlx5_eswitch_unblock_encap(struct mlx5_core_dev *dev)
 {
-	struct devlink *devlink = priv_to_devlink(dev);
-	struct mlx5_eswitch *esw;
+	struct mlx5_eswitch *esw = dev->priv.eswitch;
 
-	esw = mlx5_devlink_eswitch_get(devlink);
-	if (IS_ERR(esw))
+	if (!mlx5_esw_allowed(esw))
 		return;
 
 	down_write(&esw->mode_lock);
-- 
2.41.0