netdev - [PATCH net-next 1/5] net/mlx5: Use common mlx5_same_hw

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <1761211020-925651-2-git-send-email-tariqt@nvidia.com>
Date: Thu, 23 Oct 2025 12:16:56 +0300
From: Tariq Toukan <tariqt@...dia.com>
To: Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>, Andrew Lunn <andrew+netdev@...n.ch>, "David
 S. Miller" <davem@...emloft.net>
CC: Saeed Mahameed <saeedm@...dia.com>, Leon Romanovsky <leon@...nel.org>,
	Tariq Toukan <tariqt@...dia.com>, Mark Bloch <mbloch@...dia.com>,
	<netdev@...r.kernel.org>, <linux-rdma@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, Gal Pressman <gal@...dia.com>, Moshe Shemesh
	<moshe@...dia.com>, Shay Drori <shayd@...dia.com>
Subject: [PATCH net-next 1/5] net/mlx5: Use common mlx5_same_hw_devs function

From: Mark Bloch <mbloch@...dia.com>

Refactor duplicate hardware device comparison code to use the common
mlx5_same_hw_devs() function instead of reimplementing system GUID
comparison logic in multiple places.

This cleanup eliminates code duplication in:
- Bridge representor device comparison.
- TC hardware device comparison.

Using the centralized function improves maintainability and ensures
consistent behavior across the driver.

Signed-off-by: Mark Bloch <mbloch@...dia.com>
Reviewed-by: Shay Drori <shayd@...dia.com>
Signed-off-by: Tariq Toukan <tariqt@...dia.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/en/rep/bridge.c | 6 +-----
 drivers/net/ethernet/mellanox/mlx5/core/en_tc.c         | 6 +-----
 2 files changed, 2 insertions(+), 10 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/rep/bridge.c b/drivers/net/ethernet/mellanox/mlx5/core/en/rep/bridge.c
index 9d1c677814e0..87a2ad69526d 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/rep/bridge.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/rep/bridge.c
@@ -30,15 +30,11 @@ static bool mlx5_esw_bridge_dev_same_hw(struct net_device *dev, struct mlx5_eswi
 {
 	struct mlx5e_priv *priv = netdev_priv(dev);
 	struct mlx5_core_dev *mdev, *esw_mdev;
-	u64 system_guid, esw_system_guid;
 
 	mdev = priv->mdev;
 	esw_mdev = esw->dev;
 
-	system_guid = mlx5_query_nic_system_image_guid(mdev);
-	esw_system_guid = mlx5_query_nic_system_image_guid(esw_mdev);
-
-	return system_guid == esw_system_guid;
+	return mlx5_same_hw_devs(mdev, esw_mdev);
 }
 
 static struct net_device *
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
index 00c2763e57ca..54ccfb4e6c4e 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
@@ -3614,15 +3614,11 @@ static bool same_port_devs(struct mlx5e_priv *priv, struct mlx5e_priv *peer_priv
 bool mlx5e_same_hw_devs(struct mlx5e_priv *priv, struct mlx5e_priv *peer_priv)
 {
 	struct mlx5_core_dev *fmdev, *pmdev;
-	u64 fsystem_guid, psystem_guid;
 
 	fmdev = priv->mdev;
 	pmdev = peer_priv->mdev;
 
-	fsystem_guid = mlx5_query_nic_system_image_guid(fmdev);
-	psystem_guid = mlx5_query_nic_system_image_guid(pmdev);
-
-	return (fsystem_guid == psystem_guid);
+	return mlx5_same_hw_devs(fmdev, pmdev);
 }
 
 static int
-- 
2.31.1