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Subjectarch/parisc/kernel/cache.c:50:1: sparse: sparse: symbol 'pa_swapper_pg_lock' was not declared. Should it be static?
tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 5f53fa508db098c9d372423a6dac31c8a5679cdf
commit: b7795074a04669d0a023babf786d29bf67c68783 parisc: Optimize per-pagetable spinlocks
date: 10 months ago
config: parisc-randconfig-s031-20211122 (https://download.01.org/0day-ci/archive/20211126/202111260110.KkIdLdT2-lkp@intel.com/config)
compiler: hppa-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=b7795074a04669d0a023babf786d29bf67c68783
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout b7795074a04669d0a023babf786d29bf67c68783
# save the config file to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=parisc SHELL=/bin/bash

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


sparse warnings: (new ones prefixed by >>)
>> arch/parisc/kernel/cache.c:50:1: sparse: sparse: symbol 'pa_swapper_pg_lock' was not declared. Should it be static?

vim +/pa_swapper_pg_lock +50 arch/parisc/kernel/cache.c

b37d1c1898b288 Mikulas Patocka 2019-04-28 48
b37d1c1898b288 Mikulas Patocka 2019-04-28 49 /* Swapper page setup lock. */
b37d1c1898b288 Mikulas Patocka 2019-04-28 @50 DEFINE_SPINLOCK(pa_swapper_pg_lock);
b37d1c1898b288 Mikulas Patocka 2019-04-28 51

:::::: The code at line 50 was first introduced by commit
:::::: b37d1c1898b288c69f3dc9267bc2c41af06f4a4b parisc: Use per-pagetable spinlock

:::::: TO: Mikulas Patocka <mpatocka@redhat.com>
:::::: CC: Helge Deller <deller@gmx.de>

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

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