netdev - [PATCH net-next 03/12] mlxsw: core_thermal: Avoid creation of virtual hwmon objects by thermal module

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Date:   Tue, 22 Feb 2022 19:16:54 +0200
From:   Ido Schimmel <idosch@...dia.com>
To:     netdev@...r.kernel.org
Cc:     davem@...emloft.net, kuba@...nel.org, petrm@...dia.com,
        jiri@...dia.com, danieller@...dia.com, vadimp@...dia.com,
        Ido Schimmel <idosch@...dia.com>
Subject: [PATCH net-next 03/12] mlxsw: core_thermal: Avoid creation of virtual hwmon objects by thermal module

From: Vadim Pasternak <vadimp@...dia.com>

The driver registers with both the hwmon and thermal subsystems.
Therefore, there is no need for the thermal subsystem to automatically
create hwmon entries upon registration of a thermal zone, as this
results in duplicate information.

Avoid creation of virtual hwmon objects by thermal subsystem by
registering a thermal zone with 'no_hwmon' set to 'true'.

Signed-off-by: Vadim Pasternak <vadimp@...dia.com>
Reviewed-by: Jiri Pirko <jiri@...dia.com>
Signed-off-by: Ido Schimmel <idosch@...dia.com>
---
 drivers/net/ethernet/mellanox/mlxsw/core_thermal.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c b/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
index b29824448aa8..e20ac2bf3985 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
@@ -357,6 +357,10 @@ static int mlxsw_thermal_trend_get(struct thermal_zone_device *tzdev,
 	return 0;
 }
 
+static struct thermal_zone_params mlxsw_thermal_params = {
+	.no_hwmon = true,
+};
+
 static struct thermal_zone_device_ops mlxsw_thermal_ops = {
 	.bind = mlxsw_thermal_bind,
 	.unbind = mlxsw_thermal_unbind,
@@ -678,7 +682,8 @@ mlxsw_thermal_module_tz_init(struct mlxsw_thermal_module *module_tz)
 							MLXSW_THERMAL_TRIP_MASK,
 							module_tz,
 							&mlxsw_thermal_module_ops,
-							NULL, 0,
+							&mlxsw_thermal_params,
+							0,
 							module_tz->parent->polling_delay);
 	if (IS_ERR(module_tz->tzdev)) {
 		err = PTR_ERR(module_tz->tzdev);
@@ -808,7 +813,7 @@ mlxsw_thermal_gearbox_tz_init(struct mlxsw_thermal_module *gearbox_tz)
 						MLXSW_THERMAL_TRIP_MASK,
 						gearbox_tz,
 						&mlxsw_thermal_gearbox_ops,
-						NULL, 0,
+						&mlxsw_thermal_params, 0,
 						gearbox_tz->parent->polling_delay);
 	if (IS_ERR(gearbox_tz->tzdev))
 		return PTR_ERR(gearbox_tz->tzdev);
@@ -968,7 +973,7 @@ int mlxsw_thermal_init(struct mlxsw_core *core,
 						      MLXSW_THERMAL_TRIP_MASK,
 						      thermal,
 						      &mlxsw_thermal_ops,
-						      NULL, 0,
+						      &mlxsw_thermal_params, 0,
 						      thermal->polling_delay);
 	if (IS_ERR(thermal->tzdev)) {
 		err = PTR_ERR(thermal->tzdev);
-- 
2.33.1