[driver-core:driver-core-linus 9/9] drivers/base/arch_topology.c:727:24: warning: returning 'int' from a function with return type 'const struct cpumask *' makes pointer from integer without a cast

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git 
driver-core-linus
head:   6b66ca0bac1b9cee7608d7c4dc59b699458b4cb8
commit: 6b66ca0bac1b9cee7608d7c4dc59b699458b4cb8 [9/9] arch_topology: Make 
cluster topology span at least SMT CPUs
config: parisc-allyesconfig 
(https://download.01.org/0day-ci/archive/20220903/202209030824.souwdv5m-...@intel.com/config)
compiler: hppa-linux-gcc (GCC) 12.1.0
reproduce (this is a W=1 build):
        wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
        chmod +x ~/bin/make.cross
        # 
https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git/commit/?id=6b66ca0bac1b9cee7608d7c4dc59b699458b4cb8
        git remote add driver-core 
https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git
        git fetch --no-tags driver-core driver-core-linus
        git checkout 6b66ca0bac1b9cee7608d7c4dc59b699458b4cb8
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 
O=build_dir ARCH=parisc SHELL=/bin/bash drivers/

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <l...@intel.com>

All warnings (new ones prefixed by >>):

   drivers/base/arch_topology.c: In function 'cpu_clustergroup_mask':
   drivers/base/arch_topology.c:727:24: error: implicit declaration of function 
'cpu_smt_mask'; did you mean 'cpu_cpu_mask'? 
[-Werror=implicit-function-declaration]
     727 |                 return cpu_smt_mask(cpu);
         |                        ^~~~~~~~~~~~
         |                        cpu_cpu_mask
>> drivers/base/arch_topology.c:727:24: warning: returning 'int' from a 
>> function with return type 'const struct cpumask *' makes pointer from 
>> integer without a cast [-Wint-conversion]
     727 |                 return cpu_smt_mask(cpu);
         |                        ^~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors


vim +727 drivers/base/arch_topology.c

   718  
   719  const struct cpumask *cpu_clustergroup_mask(int cpu)
   720  {
   721          /*
   722           * Forbid cpu_clustergroup_mask() to span more or the same CPUs 
as
   723           * cpu_coregroup_mask().
   724           */
   725          if (cpumask_subset(cpu_coregroup_mask(cpu),
   726                             &cpu_topology[cpu].cluster_sibling))
 > 727                  return cpu_smt_mask(cpu);
   728  
   729          return &cpu_topology[cpu].cluster_sibling;
   730  }
   731  

-- 
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https://01.org/lkp
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