[openeuler:OLK-5.10 2451/2451] kernel/sched/topology.c:1749:2: error: implicit declaration of function 'register_sysctl_init'

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

Hi Tim,

FYI, the error/warning still remains.

tree:   https://gitee.com/openeuler/kernel.git OLK-5.10
head:   bf0212daf6239e1b0e65e6dd7ee9fdec378c5dd4
commit: f4128ae8e6ff03b4c805707fe75d0345797f7f53 [2451/2451] sched: Add cluster scheduler level for x86
config: x86_64-buildonly-randconfig-003-20241119 (https://download.01.org/0day-ci/archive/20241120/202411201827.IfsNluS9-lkp@intel.com/config)
compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241120/202411201827.IfsNluS9-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/202411201827.IfsNluS9-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from kernel/sched/topology.c:5:
   In file included from kernel/sched/sched.h:39:
   In file included from include/linux/blkdev.h:9:
   In file included from include/linux/genhd.h:20:
   In file included from include/linux/blk_types.h:11:
   In file included from include/linux/bvec.h:14:
   In file included from include/linux/mm.h:1579:
   include/linux/vmstat.h:417:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
     417 |         return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~ ^
     418 |                            item];
         |                            ~~~~
   include/linux/vmstat.h:424:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
     424 |         return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~ ^
     425 |                            NR_VM_NUMA_STAT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~
   include/linux/vmstat.h:431:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
     431 |         return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
         |                               ~~~~~~~~~~~ ^ ~~~
   include/linux/vmstat.h:436:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
     436 |         return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~ ^
     437 |                            NR_VM_NUMA_STAT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~
   include/linux/vmstat.h:445:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
     445 |         return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~ ^
     446 |                            NR_VM_NUMA_STAT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~
   In file included from kernel/sched/topology.c:5:
   kernel/sched/sched.h:1838:15: warning: cast from 'void (*)(struct rq *)' to 'void (*)(struct callback_head *)' converts to incompatible function type [-Wcast-function-type-strict]
    1838 |         head->func = (void (*)(struct callback_head *))func;
         |                      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   kernel/sched/topology.c:718:6: warning: variable 'numa_distance' set but not used [-Wunused-but-set-variable]
     718 |         int numa_distance = 0;
         |             ^
>> kernel/sched/topology.c:1749:2: error: implicit declaration of function 'register_sysctl_init' [-Werror,-Wimplicit-function-declaration]
    1749 |         register_sysctl_init("kernel", sched_cluster_sysctls);
         |         ^
   7 warnings and 1 error generated.


vim +/register_sysctl_init +1749 kernel/sched/topology.c

8ce3e706b31409 Tim Chen 2021-12-03  1746  
8ce3e706b31409 Tim Chen 2021-12-03  1747  static int __init sched_cluster_sysctl_init(void)
8ce3e706b31409 Tim Chen 2021-12-03  1748  {
8ce3e706b31409 Tim Chen 2021-12-03 @1749  	register_sysctl_init("kernel", sched_cluster_sysctls);
8ce3e706b31409 Tim Chen 2021-12-03  1750  	return 0;
8ce3e706b31409 Tim Chen 2021-12-03  1751  }
8ce3e706b31409 Tim Chen 2021-12-03  1752  late_initcall(sched_cluster_sysctl_init);
9e68cc2bf535a2 Tim Chen 2021-12-03  1753  

:::::: The code at line 1749 was first introduced by commit
:::::: 8ce3e706b31409147f035c037055caa68e450ce5 scheduler: Add runtime knob sysctl_sched_cluster

:::::: TO: Tim Chen <tim.c.chen@linux.intel.com>
:::::: CC: Jie Liu <liujie375@h-partners.com>

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