Re: [PATCH 4.19 v1 2/2] thermal/drivers/thermal_hwmon: Use hwmon_device_register_for_thermal()

From: Guenter Roeck
Date: Wed Jun 29 2022 - 19:16:08 EST


On 6/29/22 15:58, Will McVicker wrote:
From: Guenter Roeck <linux@xxxxxxxxxxxx>

[ upstream commit 87743bcf08072b3e1952a0bf5524b2833e667b4c ]

The thermal subsystem registers a hwmon device without providing chip
information or sysfs attribute groups. While undesirable, it would be
difficult to change. On the other side, it abuses the
hwmon_device_register_with_info API by not providing that information.
Use new API specifically created for the thermal subsystem instead to
let us enforce the 'chip' parameter for other callers of
hwmon_device_register_with_info().

Acked-by: Rafael J . Wysocki <rafael@xxxxxxxxxx>
Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx>

NACK. Same reason as 1/2.

Guenter

---
drivers/thermal/thermal_hwmon.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/thermal/thermal_hwmon.c b/drivers/thermal/thermal_hwmon.c
index dd5d8ee37928..b3b229421936 100644
--- a/drivers/thermal/thermal_hwmon.c
+++ b/drivers/thermal/thermal_hwmon.c
@@ -147,8 +147,8 @@ int thermal_add_hwmon_sysfs(struct thermal_zone_device *tz)
INIT_LIST_HEAD(&hwmon->tz_list);
strlcpy(hwmon->type, tz->type, THERMAL_NAME_LENGTH);
strreplace(hwmon->type, '-', '_');
- hwmon->device = hwmon_device_register_with_info(&tz->device, hwmon->type,
- hwmon, NULL, NULL);
+ hwmon->device = hwmon_device_register_for_thermal(&tz->device,
+ hwmon->type, hwmon);
if (IS_ERR(hwmon->device)) {
result = PTR_ERR(hwmon->device);
goto free_mem;