linux-kernel - [PATCH] net/mlx5: unique names for per device caches

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Message-ID: <20240920143335.25237-1-sebott@redhat.com>
Date: Fri, 20 Sep 2024 16:33:35 +0200
From: Sebastian Ott <sebott@...hat.com>
To: netdev@...r.kernel.org,
	linux-rdma@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: Saeed Mahameed <saeedm@...dia.com>,
	Leon Romanovsky <leon@...nel.org>,
	Tariq Toukan <tariqt@...dia.com>,
	"David S . Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>
Subject: [PATCH] net/mlx5: unique names for per device caches

Add the pci device name to the per device kmem_cache names
to ensure their uniqueness. This fixes warnings like this:
"kmem_cache of name 'mlx5_fs_fgs' already exists".

Signed-off-by: Sebastian Ott <sebott@...hat.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/fs_core.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
index 8505d5e241e1..5d54386a5669 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
@@ -3689,6 +3689,7 @@ void mlx5_fs_core_free(struct mlx5_core_dev *dev)
 int mlx5_fs_core_alloc(struct mlx5_core_dev *dev)
 {
 	struct mlx5_flow_steering *steering;
+	char name[80];
 	int err = 0;
 
 	err = mlx5_init_fc_stats(dev);
@@ -3713,10 +3714,12 @@ int mlx5_fs_core_alloc(struct mlx5_core_dev *dev)
 	else
 		steering->mode = MLX5_FLOW_STEERING_MODE_DMFS;
 
-	steering->fgs_cache = kmem_cache_create("mlx5_fs_fgs",
+	snprintf(name, sizeof(name), "%s-mlx5_fs_fgs", pci_name(dev->pdev));
+	steering->fgs_cache = kmem_cache_create(name,
 						sizeof(struct mlx5_flow_group), 0,
 						0, NULL);
-	steering->ftes_cache = kmem_cache_create("mlx5_fs_ftes", sizeof(struct fs_fte), 0,
+	snprintf(name, sizeof(name), "%s-mlx5_fs_ftes", pci_name(dev->pdev));
+	steering->ftes_cache = kmem_cache_create(name, sizeof(struct fs_fte), 0,
 						 0, NULL);
 	if (!steering->ftes_cache || !steering->fgs_cache) {
 		err = -ENOMEM;
-- 
2.42.0