[openeuler:openEuler-1.0-LTS 8452/21854] kernel/ktask.c:80:5: sparse: sparse: symbol 'ktask_max_threads' was not declared. Should it be static?

[openeuler:openEuler-1.0-LTS 8452/21854] kernel/ktask.c:80:5: sparse: sparse: symbol 'ktask_max_threads' was not declared. Should it be static?

[kernel test robot]

tree:   https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS
head:   b318937609077b966b3bd130583ee3aaaa4d015a
commit: c48676ef6b6f9cb8497d6264ae9ff71b87630337 [8452/21854] ktask: multithread CPU-intensive kernel work
config: x86_64-randconfig-122-20240313 (https://download.01.org/0day-ci/archive/20240313/202403132000.KEN5Ibpb-lkp@intel.com/config)
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/20240313/202403132000.KEN5Ibpb-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/202403132000.KEN5Ibpb-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> kernel/ktask.c:80:5: sparse: sparse: symbol 'ktask_max_threads' was not declared. Should it be static?

vim +/ktask_max_threads +80 kernel/ktask.c

    78	
    79	/* Maximum number of threads for a single task. */
  > 80	int ktask_max_threads = KTASK_DEFAULT_MAX_THREADS;
    81	

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