[harry:kfree_rcu_nolock-v3r2 2/9] lib/tests/slub_kunit.c:410:9: error: implicit declaration of function 'test_nolock'

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

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/harry/linux.git kfree_rcu_nolock-v3r2
head:   ae8ee8383751a6087097cfb02110c1f489b1eace
commit: fb5395cf57a5aff4eef4ea985d132edb5fcb373d [2/9] mm/slab, slub_kunit: register kprobe to trigger _nolock APIs
config: arc-randconfig-r132-20260616 (https://download.01.org/0day-ci/archive/20260616/202606161614.v4taQKBs-lkp@intel.com/config)
compiler: arc-linux-gcc (GCC) 13.4.0
sparse: v0.6.5-rc1
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260616/202606161614.v4taQKBs-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/202606161614.v4taQKBs-lkp@intel.com/

All errors (new ones prefixed by >>):

   lib/tests/slub_kunit.c: In function 'slab_kprobe_pre_handler':
>> lib/tests/slub_kunit.c:410:9: error: implicit declaration of function 'test_nolock' [-Werror=implicit-function-declaration]
     410 |         test_nolock(ctx);
         |         ^~~~~~~~~~~
   cc1: some warnings being treated as errors


vim +/test_nolock +410 lib/tests/slub_kunit.c

   403	
   404	#if defined(CONFIG_KPROBES) && defined(CONFIG_SMP)
   405	static int slab_kprobe_pre_handler(struct kprobe *p, struct pt_regs *regs)
   406	{
   407		struct test_nolock_context *ctx;
   408	
   409		ctx = container_of(p, struct test_nolock_context, kprobe);
 > 410		test_nolock(ctx);
   411		return 0;
   412	}
   413	

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