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SubjectRe: [PATCH v2 05/10] hwmon: (fam15h_power) Add compute unit accumulated power
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On 10/20/2015 07:40 PM, Huang Rui wrote:
> On Tue, Oct 20, 2015 at 07:15:25PM -0700, Guenter Roeck wrote:
>> On 10/20/2015 06:42 PM, Huang Rui wrote:
>>> On Tue, Oct 20, 2015 at 03:24:09PM +0800, kbuild test robot wrote:
>>>> Hi Huang,
>>>>
>>>> [auto build test ERROR on hwmon/hwmon-next -- if it's inappropriate base, please suggest rules for selecting the more suitable base]
>>>>
>>>> url: https://github.com/0day-ci/linux/commits/Huang-Rui/hwmon-fam15h_power-Introduce-an-accumulated-power-reporting-algorithm/20151020-110712
>>>> config: x86_64-randconfig-s2-10201413 (attached as .config)
>>>> reproduce:
>>>> # save the attached .config to linux build tree
>>>> make ARCH=x86_64
>>>>
>>>> All errors (new ones prefixed by >>):
>>>>
>>>> drivers/built-in.o: In function `fam15h_power_probe':
>>>>>> fam15h_power.c:(.text+0x26e3a3): undefined reference to `amd_get_cores_per_cu'
>>>> fam15h_power.c:(.text+0x26e41e): undefined reference to `amd_get_cores_per_cu'
>>>>
>>>
>>> Thanks to report this issue. :)
>>> The root cause is that the test config doesn't enable
>>> CONFIG_CPU_SUP_AMD.
>>>
>>> How about below fix:
>>>
>>
>> Guess you don't have a choice.
>>
>
> Yes, if I use test config, fam15h_power isn't chosen. :)
>
> And if I use the "select" flag like below, fam15h_power can be built
> successfully.
>
That is another possibility, though that isn't how CPU_SUP_AMD
is handled by its other users. Matter of philosophy, I guess.

Guenter

> ---
> diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
> index 796569ee..50b4fef 100644
> --- a/drivers/hwmon/Kconfig
> +++ b/drivers/hwmon/Kconfig
> @@ -289,6 +289,7 @@ config SENSORS_K10TEMP
> config SENSORS_FAM15H_POWER
> tristate "AMD Family 15h processor power"
> depends on X86 && PCI
> + select CPU_SUP_AMD
> help
> If you say yes here you get support for processor power
> information of your AMD family 15h CPU.
> ---
>
> Thanks,
> Rui
>



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