Re: [PATCH bpf-next 2/2] selftests/bpf: Add selftest for bits iter

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

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/bpf-Add-bits-iterator/20240218-195123
base:   https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master
patch link:    https://lore.kernel.org/r/20240218114818.13585-3-laoar.shao%40gmail.com
patch subject: [PATCH bpf-next 2/2] selftests/bpf: Add selftest for bits iter
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240226/202402260354.rwSw5NBc-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/202402260354.rwSw5NBc-lkp@intel.com/

All errors (new ones prefixed by >>):

>> progs/test_bits_iter_success.c:55:27: error: incomplete definition of type 'struct psi_group_cpu'
      55 |                 psi_nr_running += groupc->tasks[NR_RUNNING];
         |                                   ~~~~~~^
   progs/test_bits_iter_success.c:13:21: note: forward declaration of 'struct psi_group_cpu'
      13 | extern const struct psi_group_cpu system_group_pcpu __ksym __weak;
         |                     ^
>> progs/test_bits_iter_success.c:55:35: error: use of undeclared identifier 'NR_RUNNING'; did you mean 'T_RUNNING'?
      55 |                 psi_nr_running += groupc->tasks[NR_RUNNING];
         |                                                 ^~~~~~~~~~
         |                                                 T_RUNNING
   /tools/include/vmlinux.h:48349:3: note: 'T_RUNNING' declared here
    48349 |                 T_RUNNING = 0,
          |                 ^
   2 errors generated.

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