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

From: kernel test robot
Date: Mon Jan 24 2022 - 05:09:49 EST


tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: dd81e1c7d5fb126e5fbc5c9e334d7b3ec29a16a0
commit: 9a2451f1866344d38b4a1dc20396e3a03954fcd7 RISC-V: Avoid using per cpu array for ordered booting
date: 4 days ago
config: riscv-allmodconfig (https://download.01.org/0day-ci/archive/20220124/202201241842.sQ6Y0PbO-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

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