Re: [PATCH 4/8] platform/x86: intel_menlow: switch to use <linux/temperature.h> helpers

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On Sun, Nov 24, 2019 at 4:09 PM Akinobu Mita <akinobu.mita@xxxxxxxxx> wrote:
>
> This switches the intel_menlow driver to use deci_kelvin_to_celsius() and
> celsius_to_deci_kelvin() in <linux/temperature.h> instead of helpers in
> <linux/thermal.h>.
>
> This is preparation for centralizing the kelvin to/from Celsius conversion
> helpers in <linux/temprature.h>.
>
> Cc: Sujith Thomas <sujith.thomas@xxxxxxxxx>
> Cc: Darren Hart <dvhart@xxxxxxxxxxxxx>
> Cc: Andy Shevchenko <andy@xxxxxxxxxxxxx>
> Cc: Zhang Rui <rui.zhang@xxxxxxxxx>
> Cc: Eduardo Valentin <edubezval@xxxxxxxxx>
> Cc: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
> Cc: Amit Kucheria <amit.kucheria@xxxxxxxxxxxxx>
> Cc: Jean Delvare <jdelvare@xxxxxxxx>
> Cc: Guenter Roeck <linux@xxxxxxxxxxxx>
> Cc: Keith Busch <kbusch@xxxxxxxxxx>
> Cc: Jens Axboe <axboe@xxxxxx>
> Cc: Christoph Hellwig <hch@xxxxxx>
> Cc: Sagi Grimberg <sagi@xxxxxxxxxxx>
> Signed-off-by: Akinobu Mita <akinobu.mita@xxxxxxxxx>
> ---
>  drivers/platform/x86/intel_menlow.c | 8 +++++---
>  1 file changed, 5 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/platform/x86/intel_menlow.c b/drivers/platform/x86/intel_menlow.c
> index b102f6d..6313591 100644
> --- a/drivers/platform/x86/intel_menlow.c
> +++ b/drivers/platform/x86/intel_menlow.c
> @@ -302,8 +302,10 @@ static ssize_t aux_show(struct device *dev, struct device_attribute *dev_attr,
>         int result;
>
>         result = sensor_get_auxtrip(attr->handle, idx, &value);
> +       if (result)
> +               return result;
>
> -       return result ? result : sprintf(buf, "%lu", DECI_KELVIN_TO_CELSIUS(value));
> +       return sprintf(buf, "%ld", deci_kelvin_to_celsius(value));

Can you explain the change %lu to %ld?

>  }
>
>  static ssize_t aux0_show(struct device *dev,
> @@ -332,8 +334,8 @@ static ssize_t aux_store(struct device *dev, struct device_attribute *dev_attr,
>         if (value < 0)
>                 return -EINVAL;
>
> -       result = sensor_set_auxtrip(attr->handle, idx,
> -                                   CELSIUS_TO_DECI_KELVIN(value));

> +       result = sensor_set_auxtrip(attr->handle, idx,
> +                                   celsius_to_deci_kelvin(value));

How come the first line has been changed?

>         return result ? result : count;
>  }
>
> --
> 2.7.4
>


-- 
With Best Regards,
Andy Shevchenko



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