Re: [PATCH] hwmon: (ibmpowernv) Fix label for cores numbers not threads

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On 09/13/2016 07:47 AM, Michael Neuling wrote:
> Currently the label says "Core" but lists the thread numbers. This
> ends up looking like this:
>     # cat /sys/class/hwmon/hwmon0/temp[1-4]_label
>     Core 0-7
>     Core 8-15
>     Core 16-23
>     Core 24-31
> 
> This is misleading as it looks like it's cores 0-7 when it's actually
> threads 0-7.
> 
> This changes the print to just give the core number, so the output now
> looks like this:
>     # cat /sys/class/hwmon/hwmon0/temp[1-4]_label
>     Core 0
>     Core 8
>     Core 16
>     Core 24
> 
> Signed-off-by: Michael Neuling <mikey@xxxxxxxxxxx>

Yes. This looks better. The DTS are related to the core so we don't 
really care about the threads.

Acked-by: Cédric Le Goater <clg@xxxxxxxx>



Side question, should we use the Physical ID and not the Linux 
logical one ? I don't know if it is exposed elsewhere in user space.

Thanks,

C.


> ---
>  drivers/hwmon/ibmpowernv.c | 8 +++-----
>  1 file changed, 3 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/hwmon/ibmpowernv.c b/drivers/hwmon/ibmpowernv.c
> index 55b5a8ff1c..6d2e660575 100644
> --- a/drivers/hwmon/ibmpowernv.c
> +++ b/drivers/hwmon/ibmpowernv.c
> @@ -143,13 +143,11 @@ static void __init make_sensor_label(struct device_node *np,
>  		if (cpuid >= 0)
>  			/*
>  			 * The digital thermal sensors are associated
> -			 * with a core. Let's print out the range of
> -			 * cpu ids corresponding to the hardware
> -			 * threads of the core.
> +			 * with a core.
>  			 */
>  			n += snprintf(sdata->label + n,
> -				      sizeof(sdata->label) - n, " %d-%d",
> -				      cpuid, cpuid + threads_per_core - 1);
> +				      sizeof(sdata->label) - n, " %d",
> +				      cpuid);
>  		else
>  			n += snprintf(sdata->label + n,
>  				      sizeof(sdata->label) - n, " phy%d", id);
> 

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