[alexshi:cpusetisolation 2/5] include/linux/sched/isolation.h:61:10: error: call to undeclared function 'housekeeping_cpu'; ISO C99 and later do not support implicit function declarations

[alexshi:cpusetisolation 2/5] include/linux/sched/isolation.h:61:10: error: call to undeclared function 'housekeeping_cpu'; ISO C99 and later do not support implicit function declarations

[kernel test robot]

tree:   https://github.com/alexshi/linux.git cpusetisolation
head:   9861605548c2952b76f12b4ff62edaa42e6cb61e
commit: 74b420e55b3d622b3e1c580efada25dedfc9c2d3 [2/5] sched/isolation: merge housekeeping_cpu() and housekeeping_test_cpu()
config: i386-buildonly-randconfig-006-20250211 (https://download.01.org/0day-ci/archive/20250211/202502111608.FDAH2ySN-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/20250211/202502111608.FDAH2ySN-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/202502111608.FDAH2ySN-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from kernel/watchdog.c:31:
>> include/linux/sched/isolation.h:61:10: error: call to undeclared function 'housekeeping_cpu'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
      61 |         return !housekeeping_cpu(cpu, HK_TYPE_DOMAIN) ||
         |                 ^
   1 error generated.
--
   In file included from kernel/workqueue.c:52:
>> include/linux/sched/isolation.h:61:10: error: call to undeclared function 'housekeeping_cpu'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
      61 |         return !housekeeping_cpu(cpu, HK_TYPE_DOMAIN) ||
         |                 ^
>> kernel/workqueue.c:2519:8: error: call to undeclared function 'housekeeping_cpu'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
    2519 |                 if (!housekeeping_cpu(cpu, HK_TYPE_TIMER))
         |                      ^
   2 errors generated.
--
   In file included from kernel/time/hrtimer.c:41:
>> include/linux/sched/isolation.h:61:10: error: call to undeclared function 'housekeeping_cpu'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
      61 |         return !housekeeping_cpu(cpu, HK_TYPE_DOMAIN) ||
         |                 ^
   kernel/time/hrtimer.c:124:21: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides]
     124 |         [CLOCK_REALTIME]        = HRTIMER_BASE_REALTIME,
         |                                   ^~~~~~~~~~~~~~~~~~~~~
   kernel/time/hrtimer.c:122:27: note: previous initialization is here
     122 |         [0 ... MAX_CLOCKS - 1]  = HRTIMER_MAX_CLOCK_BASES,
         |                                   ^~~~~~~~~~~~~~~~~~~~~~~
   kernel/time/hrtimer.c:125:22: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides]
     125 |         [CLOCK_MONOTONIC]       = HRTIMER_BASE_MONOTONIC,
         |                                   ^~~~~~~~~~~~~~~~~~~~~~
   kernel/time/hrtimer.c:122:27: note: previous initialization is here
     122 |         [0 ... MAX_CLOCKS - 1]  = HRTIMER_MAX_CLOCK_BASES,
         |                                   ^~~~~~~~~~~~~~~~~~~~~~~
   kernel/time/hrtimer.c:126:21: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides]
     126 |         [CLOCK_BOOTTIME]        = HRTIMER_BASE_BOOTTIME,
         |                                   ^~~~~~~~~~~~~~~~~~~~~
   kernel/time/hrtimer.c:122:27: note: previous initialization is here
     122 |         [0 ... MAX_CLOCKS - 1]  = HRTIMER_MAX_CLOCK_BASES,
         |                                   ^~~~~~~~~~~~~~~~~~~~~~~
   kernel/time/hrtimer.c:127:17: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides]
     127 |         [CLOCK_TAI]             = HRTIMER_BASE_TAI,
         |                                   ^~~~~~~~~~~~~~~~
   kernel/time/hrtimer.c:122:27: note: previous initialization is here
     122 |         [0 ... MAX_CLOCKS - 1]  = HRTIMER_MAX_CLOCK_BASES,
         |                                   ^~~~~~~~~~~~~~~~~~~~~~~
   4 warnings and 1 error generated.
--
   In file included from kernel/sched/core.c:34:
>> include/linux/sched/isolation.h:61:10: error: call to undeclared function 'housekeeping_cpu'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
      61 |         return !housekeeping_cpu(cpu, HK_TYPE_DOMAIN) ||
         |                 ^
>> kernel/sched/core.c:5643:6: error: call to undeclared function 'housekeeping_cpu'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
    5643 |         if (housekeeping_cpu(cpu, HK_TYPE_KERNEL_NOISE))
         |             ^
   2 errors generated.


vim +/housekeeping_cpu +61 include/linux/sched/isolation.h

    58	
    59	static inline bool cpu_is_isolated(int cpu)
    60	{
  > 61		return !housekeeping_cpu(cpu, HK_TYPE_DOMAIN) ||
    62		       !housekeeping_cpu(cpu, HK_TYPE_TICK) ||
    63		       cpuset_cpu_is_isolated(cpu);
    64	}
    65	

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