linux-kernel - Re: [PATCH 2/2] hwmon: acpi_power_meter: convert to hwmon_device_register_with

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Date:   Mon, 2 May 2022 06:34:44 -0700
From:   Guenter Roeck <linux@...ck-us.net>
To:     Corentin Labbe <clabbe@...libre.com>, jdelvare@...e.com
Cc:     linux-hwmon@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] hwmon: acpi_power_meter: convert to
 hwmon_device_register_with_info

On 5/2/22 05:42, Corentin Labbe wrote:
> Booting lead to a hwmon_device_register() is deprecated. Please convert the driver to use hwmon_device_register_with_info().
> So let's convert the driver to use hwmon_device_register_with_info().
> 
> Signed-off-by: Corentin Labbe <clabbe@...libre.com>
> ---
>   drivers/hwmon/acpi_power_meter.c | 5 ++++-
>   1 file changed, 4 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/hwmon/acpi_power_meter.c b/drivers/hwmon/acpi_power_meter.c
> index d2545a1be9fc..98293727f980 100644
> --- a/drivers/hwmon/acpi_power_meter.c
> +++ b/drivers/hwmon/acpi_power_meter.c
> @@ -891,7 +891,10 @@ static int acpi_power_meter_add(struct acpi_device *device)
>   	if (res)
>   		goto exit_free_capability;
>   
> -	resource->hwmon_dev = hwmon_device_register(&device->dev);
> +	resource->hwmon_dev = hwmon_device_register_with_info(&device->dev,
> +							      ACPI_POWER_METER_DEVICE_NAME,
> +							      NULL, NULL,
> +							      NULL);

NACK. That isn't a conversion to the new API, it just abuses the fact
that the new API has to accept a NULL info pointer for historic reasons.

Guenter