Re: [PATCH bpf-next 1/4] cgroup, psi: Init PSI of root cgroup to psi_system

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Hi Yafang,

kernel test robot noticed the following build errors:

[auto build test ERROR on bpf-next/master]

url:    https://github.com/intel-lab-lkp/linux/commits/Yafang-Shao/cgroup-psi-Init-PSI-of-root-cgroup-to-psi_system/20231222-193221
base:   https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master
patch link:    https://lore.kernel.org/r/20231222113102.4148-2-laoar.shao%40gmail.com
patch subject: [PATCH bpf-next 1/4] cgroup, psi: Init PSI of root cgroup to psi_system
config: arm-defconfig (https://download.01.org/0day-ci/archive/20231223/202312231522.VWy0LXXY-lkp@xxxxxxxxx/config)
compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project.git f28c006a5895fc0e329fe15fead81e37457cb1d1)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231223/202312231522.VWy0LXXY-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/202312231522.VWy0LXXY-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

>> kernel/cgroup/cgroup.c:169:15: error: use of undeclared identifier 'psi_system'
           .cgrp.psi = &psi_system,
                        ^
   1 error generated.


vim +/psi_system +169 kernel/cgroup/cgroup.c

   165	
   166	/* the default hierarchy */
   167	struct cgroup_root cgrp_dfl_root = {
   168		.cgrp.rstat_cpu = &cgrp_dfl_root_rstat_cpu,
 > 169		.cgrp.psi = &psi_system,
   170	};
   171	EXPORT_SYMBOL_GPL(cgrp_dfl_root);
   172	

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




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