[linux-rt-devel:linux-5.13.y-rt-rebase 173/222] main.c:undefined reference to `rcu_tasks_initiate_self_tests'

[linux-rt-devel:linux-5.13.y-rt-rebase 173/222] main.c:undefined reference to `rcu_tasks_initiate_self_tests'

[kernel test robot]

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-5.13.y-rt-rebase
head:   7e175e6b59975c8901ad370f7818937f68de45c1
commit: 8abf1b2d2e8f61dc527e290e3cb83b0cf9fafef0 [173/222] rcu: Delay RCU-selftests
config: i386-randconfig-s002-20210707 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.3-341-g8af24329-dirty
        # https://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git/commit/?id=8abf1b2d2e8f61dc527e290e3cb83b0cf9fafef0
        git remote add linux-rt-devel https://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git
        git fetch --no-tags linux-rt-devel linux-5.13.y-rt-rebase
        git checkout 8abf1b2d2e8f61dc527e290e3cb83b0cf9fafef0
        # save the attached .config to linux build tree
        make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=i386 SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   ld: init/main.o: in function `kernel_init_freeable':
>> main.c:(.init.text+0x1025): undefined reference to `rcu_tasks_initiate_self_tests'

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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