netdev - [PATCH mlx5-next 08/18] net/mlx5: Limit scope of mlx5_get_next_phys

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Date:   Fri, 28 Jun 2019 22:36:02 +0000
From:   Saeed Mahameed <saeedm@...lanox.com>
To:     Saeed Mahameed <saeedm@...lanox.com>,
        Leon Romanovsky <leonro@...lanox.com>
CC:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>,
        Parav Pandit <parav@...lanox.com>,
        Vu Pham <vuhuong@...lanox.com>
Subject: [PATCH mlx5-next 08/18] net/mlx5: Limit scope of
 mlx5_get_next_phys_dev() to PCI PF devices

From: Parav Pandit <parav@...lanox.com>

As mlx5_get_next_phys_dev is used only for PCI PF devices use case,
limit it to search only for PCI devices.

Signed-off-by: Parav Pandit <parav@...lanox.com>
Reviewed-by: Vu Pham <vuhuong@...lanox.com>
Signed-off-by: Saeed Mahameed <saeedm@...lanox.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/dev.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/dev.c b/drivers/net/ethernet/mellanox/mlx5/core/dev.c
index ebc046fa97d3..25affce6cbed 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/dev.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/dev.c
@@ -290,13 +290,20 @@ static u32 mlx5_gen_pci_id(struct mlx5_core_dev *dev)
 /* Must be called with intf_mutex held */
 struct mlx5_core_dev *mlx5_get_next_phys_dev(struct mlx5_core_dev *dev)
 {
-	u32 pci_id = mlx5_gen_pci_id(dev);
 	struct mlx5_core_dev *res = NULL;
 	struct mlx5_core_dev *tmp_dev;
 	struct mlx5_priv *priv;
+	u32 pci_id;
 
+	if (!mlx5_core_is_pf(dev))
+		return NULL;
+
+	pci_id = mlx5_gen_pci_id(dev);
 	list_for_each_entry(priv, &mlx5_dev_list, dev_list) {
 		tmp_dev = container_of(priv, struct mlx5_core_dev, priv);
+		if (!mlx5_core_is_pf(tmp_dev))
+			continue;
+
 		if ((dev != tmp_dev) && (mlx5_gen_pci_id(tmp_dev) == pci_id)) {
 			res = tmp_dev;
 			break;
-- 
2.21.0