Re: [PATCH 5/6] cpufreq: Set policy->min and max as real QoS constraints

[kernel test robot <lkp@intel.com>]

Hi Pierre,

kernel test robot noticed the following build warnings:

[auto build test WARNING on rafael-pm/linux-next]
[also build test WARNING on rafael-pm/bleeding-edge linus/master v6.19-rc7 next-20260128]
[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/Pierre-Gondois/cpufreq-Remove-per-CPU-QoS-constraint/20260126-182440
base:   https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git linux-next
patch link:    https://lore.kernel.org/r/20260126101826.94030-6-pierre.gondois%40arm.com
patch subject: [PATCH 5/6] cpufreq: Set policy->min and max as real QoS constraints
config: riscv-allyesconfig (https://download.01.org/0day-ci/archive/20260129/202601291343.bghsD4zH-lkp@intel.com/config)
compiler: clang version 16.0.6 (https://github.com/llvm/llvm-project 7cbf1a2591520c2491aa35339f227775f4d3adf6)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260129/202601291343.bghsD4zH-lkp@intel.com/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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202601291343.bghsD4zH-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/cpufreq/virtual-cpufreq.c:167:19: warning: expression result unused [-Wunused-value]
                   policy->cpuinfo.min_freq;
                   ~~~~~~~~~~~~~~~ ^~~~~~~~
   drivers/cpufreq/virtual-cpufreq.c:168:19: warning: expression result unused [-Wunused-value]
                   policy->cpuinfo.max_freq;
                   ~~~~~~~~~~~~~~~ ^~~~~~~~
   2 warnings generated.


vim +167 drivers/cpufreq/virtual-cpufreq.c

   155	
   156	static int virt_cpufreq_get_freq_info(struct cpufreq_policy *policy)
   157	{
   158		struct cpufreq_frequency_table *table;
   159		u32 num_perftbl_entries, idx;
   160	
   161		num_perftbl_entries = per_cpu(perftbl_num_entries, policy->cpu);
   162	
   163		if (num_perftbl_entries == 1) {
   164			policy->cpuinfo.min_freq = 1;
   165			policy->cpuinfo.max_freq = virt_cpufreq_get_perftbl_entry(policy->cpu, 0);
   166	
 > 167			policy->cpuinfo.min_freq;
   168			policy->cpuinfo.max_freq;
   169	
   170			policy->cur = policy->cpuinfo.max_freq;
   171			return 0;
   172		}
   173	
   174		table = kcalloc(num_perftbl_entries + 1, sizeof(*table), GFP_KERNEL);
   175		if (!table)
   176			return -ENOMEM;
   177	
   178		for (idx = 0; idx < num_perftbl_entries; idx++)
   179			table[idx].frequency = virt_cpufreq_get_perftbl_entry(policy->cpu, idx);
   180	
   181		table[idx].frequency = CPUFREQ_TABLE_END;
   182		policy->freq_table = table;
   183	
   184		return 0;
   185	}
   186	

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