arch/riscv/kernel/cpu_ops_sbi.c:24:1: sparse: sparse: symbol '__pcpu_scope_boot_data' was not declared. Should it be static?

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   6b1f86f8e9c7f9de7ca1cb987b2cf25e99b1ae3a
commit: 9a2451f1866344d38b4a1dc20396e3a03954fcd7 RISC-V: Avoid using per cpu array for ordered booting
date:   9 weeks ago
config: riscv-allmodconfig (https://download.01.org/0day-ci/archive/20220323/202203231551.BfR9MKWQ-lkp@xxxxxxxxx/config)
compiler: riscv64-linux-gcc (GCC) 11.2.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # apt-get install sparse
        # sparse version: v0.6.4-dirty
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9a2451f1866344d38b4a1dc20396e3a03954fcd7
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 9a2451f1866344d38b4a1dc20396e3a03954fcd7
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=riscv SHELL=/bin/bash arch/riscv/kernel/

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


sparse warnings: (new ones prefixed by >>)
>> arch/riscv/kernel/cpu_ops_sbi.c:24:1: sparse: sparse: symbol '__pcpu_scope_boot_data' was not declared. Should it be static?

vim +/__pcpu_scope_boot_data +24 arch/riscv/kernel/cpu_ops_sbi.c

    15	
    16	extern char secondary_start_sbi[];
  > 17	const struct cpu_operations cpu_ops_sbi;
    18	
    19	/*
    20	 * Ordered booting via HSM brings one cpu at a time. However, cpu hotplug can
    21	 * be invoked from multiple threads in parallel. Define a per cpu data
    22	 * to handle that.
    23	 */
  > 24	DEFINE_PER_CPU(struct sbi_hart_boot_data, boot_data);
    25	

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