Re: [PATCH v6 3/3] arch_topology: Add topology_update_cpu_capacity() for runtime updates

[kernel test robot]

Hi Xueqin,

kernel test robot noticed the following build warnings:

[auto build test WARNING on driver-core/driver-core-testing]
[also build test WARNING on driver-core/driver-core-next driver-core/driver-core-linus amd-pstate/linux-next amd-pstate/bleeding-edge linus/master v7.4-rc2]
[cannot apply to rafael-pm/linux-next rafael-pm/bleeding-edge next-20261110]
[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/Xueqin-Luo/cpufreq-cppc-Add-update_limits-support-for-Highest-Performance-changes/20261111-165020
base:   driver-core/driver-core-testing
patch link:    https://lore.kernel.org/r/20261111085022.1229866-4-luoxueqin%40kylinos.cn
patch subject: [PATCH v6 3/3] arch_topology: Add topology_update_cpu_capacity() for runtime updates
config: riscv-allnoconfig (https://download.01.org/0day-ci/archive/20261111/202611112222.Q0bXZAjq-lkp@xxxxxxxxx/config)
compiler: riscv64-linux-gcc (GCC) 16.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261111/202611112222.Q0bXZAjq-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/202611112222.Q0bXZAjq-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

   In file included from include/linux/seqlock.h:20,
                    from include/linux/mmzone.h:17,
                    from include/linux/gfp.h:7,
                    from include/linux/slab.h:17,
                    from include/linux/resource_ext.h:11,
                    from include/linux/acpi.h:14,
                    from drivers/base/arch_topology.c:9:
>> drivers/base/arch_topology.c:232:21: warning: 'raw_capacity_lock' defined but not used [-Wunused-variable]
     232 | static DEFINE_MUTEX(raw_capacity_lock);
         |                     ^~~~~~~~~~~~~~~~~
   include/linux/mutex.h:87:22: note: in definition of macro 'DEFINE_MUTEX'
      87 |         struct mutex mutexname = __MUTEX_INITIALIZER(mutexname)
         |                      ^~~~~~~~~


vim +/raw_capacity_lock +232 drivers/base/arch_topology.c

   230	
   231	static u32 *raw_capacity;
 > 232	static DEFINE_MUTEX(raw_capacity_lock);
   233	

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