Re: [PATCH V5 3/7] cpufreq: amd-pstate: Enable amd-pstate preferred core supporting.

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Hi Meng,

kernel test robot noticed the following build warnings:

[auto build test WARNING on rafael-pm/linux-next]
[also build test WARNING on linus/master v6.5 next-20230905]
[cannot apply to tip/x86/core]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Meng-Li/x86-Drop-CPU_SUP_INTEL-from-SCHED_MC_PRIO-for-the-expansion/20230906-003754
base:   https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git linux-next
patch link:    https://lore.kernel.org/r/20230905015116.2268926-4-li.meng%40amd.com
patch subject: [PATCH V5 3/7] cpufreq: amd-pstate: Enable amd-pstate preferred core supporting.
config: x86_64-randconfig-r022-20230906 (https://download.01.org/0day-ci/archive/20230906/202309061049.2ag7qkvI-lkp@xxxxxxxxx/config)
compiler: clang version 16.0.4 (https://github.com/llvm/llvm-project.git ae42196bc493ffe877a7e3dff8be32035dea4d07)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230906/202309061049.2ag7qkvI-lkp@xxxxxxxxx/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202309061049.2ag7qkvI-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

>> drivers/cpufreq/amd-pstate.c:1131:8: warning: unused variable 'dev_attr_hw_prefcore' [-Wunused-variable]
   static DEVICE_ATTR_RO(hw_prefcore);
          ^
   include/linux/device.h:198:26: note: expanded from macro 'DEVICE_ATTR_RO'
           struct device_attribute dev_attr_##_name = __ATTR_RO(_name)
                                   ^
   <scratch space>:91:1: note: expanded from here
   dev_attr_hw_prefcore
   ^
   1 warning generated.


vim +/dev_attr_hw_prefcore +1131 drivers/cpufreq/amd-pstate.c

  1126	
  1127	cpufreq_freq_attr_ro(amd_pstate_highest_perf);
  1128	cpufreq_freq_attr_rw(energy_performance_preference);
  1129	cpufreq_freq_attr_ro(energy_performance_available_preferences);
  1130	static DEVICE_ATTR_RW(status);
> 1131	static DEVICE_ATTR_RO(hw_prefcore);
  1132	static DEVICE_ATTR_RO(prefcore);
  1133	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki



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