net/mlx5: Verify module parameters

Verify the mlx5_core module parameters by making sure that they are in
the expected range and if they aren't restore them to their default
values.

Fixes: 9603b61de1ee ('mlx5: Move pci device handling from mlx5_ib to mlx5_core')
Signed-off-by: Kamal Heib <kamalh@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 17 insertions, 12 deletions

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c
index 3b7c6a9f2b5f..22eb3be06651 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c
@@ -62,13 +62,13 @@ MODULE_DESCRIPTION("Mellanox Connect-IB, ConnectX-4 core driver");
 MODULE_LICENSE("Dual BSD/GPL");
 MODULE_VERSION(DRIVER_VERSION);
 
-int mlx5_core_debug_mask;
-module_param_named(debug_mask, mlx5_core_debug_mask, int, 0644);
+unsigned int mlx5_core_debug_mask;
+module_param_named(debug_mask, mlx5_core_debug_mask, uint, 0644);
 MODULE_PARM_DESC(debug_mask, "debug mask: 1 = dump cmd data, 2 = dump cmd exec time, 3 = both. Default=0");
 
 #define MLX5_DEFAULT_PROF       2
-static int prof_sel = MLX5_DEFAULT_PROF;
-module_param_named(prof_sel, prof_sel, int, 0444);
+static unsigned int prof_sel = MLX5_DEFAULT_PROF;
+module_param_named(prof_sel, prof_sel, uint, 0444);
 MODULE_PARM_DESC(prof_sel, "profile selector. Valid range 0 - 2");
 
 enum {
@@ -1227,13 +1227,6 @@ static int init_one(struct pci_dev *pdev,
 
         dev->pdev = pdev;
         dev->event = mlx5_core_event;
-
-        if (prof_sel < 0 || prof_sel >= ARRAY_SIZE(profile)) {
-                mlx5_core_warn(dev,
-                               "selected profile out of range, selecting default (%d)\n",
-                               MLX5_DEFAULT_PROF);
-                prof_sel = MLX5_DEFAULT_PROF;
-        }
         dev->profile = &profile[prof_sel];
 
         INIT_LIST_HEAD(&priv->ctx_list);
@@ -1450,10 +1443,22 @@ static struct pci_driver mlx5_core_driver = {
         .sriov_configure   = mlx5_core_sriov_configure,
 };
 
+static void mlx5_core_verify_params(void)
+{
+        if (prof_sel >= ARRAY_SIZE(profile)) {
+                pr_warn("mlx5_core: WARNING: Invalid module parameter prof_sel %d, valid range 0-%zu, changing back to default(%d)\n",
+                        prof_sel,
+                        ARRAY_SIZE(profile) - 1,
+                        MLX5_DEFAULT_PROF);
+                prof_sel = MLX5_DEFAULT_PROF;
+        }
+}
+
 static int __init init(void)
 {
         int err;
 
+        mlx5_core_verify_params();
         mlx5_register_debugfs();
 
         err = pci_register_driver(&mlx5_core_driver);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h b/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h
index 187662c8ea96..20d16b137e03 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h
@@ -44,7 +44,7 @@
 
 #define MLX5_TOTAL_VPORTS(mdev) (1 + pci_sriov_get_totalvfs(mdev->pdev))
 
-extern int mlx5_core_debug_mask;
+extern uint mlx5_core_debug_mask;
 
 #define mlx5_core_dbg(__dev, format, ...)                               \
         dev_dbg(&(__dev)->pdev->dev, "%s:%s:%d:(pid %d): " format,      \