On 4/29/21 9:28 PM, kernel test robot wrote:
> tree:   https://github.com/0day-ci/linux/commits/UPDATE-20210428-034547/Lukasz-Luba/Thermal-governors-improvements-and-a-fix/20210422-233837
> head:   39327e6a7d33c1b9f0865a76806d9cdeccdceffd
> commit: 85ed4f1d155032ca0fed3fc4d25b77f216c02cf8 thermal: fair share: use __thermal_cdev_update()
> date:   2 days ago
> config: x86_64-randconfig-a005-20210429 (attached as .config)
> compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
> reproduce (this is a W=1 build):
>          # https://github.com/0day-ci/linux/commit/85ed4f1d155032ca0fed3fc4d25b77f216c02cf8
>          git remote add linux-review https://github.com/0day-ci/linux
>          git fetch --no-tags linux-review UPDATE-20210428-034547/Lukasz-Luba/Thermal-governors-improvements-and-a-fix/20210422-233837
>          git checkout 85ed4f1d155032ca0fed3fc4d25b77f216c02cf8
>          # save the attached .config to linux build tree
>          make W=1 W=1 ARCH=x86_64
> 
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@intel.com>
> 
> All errors (new ones prefixed by >>):
> 
>     drivers/thermal/gov_fair_share.c: In function 'fair_share_throttle':
>>> drivers/thermal/gov_fair_share.c:111:3: error: implicit declaration of function '__thermal_cdev_update'; did you mean 'thermal_cdev_update'? [-Werror=implicit-function-declaration]
>       111 |   __thermal_cdev_update(cdev);
>           |   ^~~~~~~~~~~~~~~~~~~~~
>           |   thermal_cdev_update
>     cc1: some warnings being treated as errors
> 

This looks false positive. There should be a patch applied before which
adds this function and also enrty in the thermal_core.h header:

thermal: create a helper __thermal_cdev_update() without a lock

Unfortunately, I cannot access these links, they are removed.

Regards,
Lukasz