drivers/scsi/scsi_scan.c:100:6: sparse: sparse: symbol 'scsi_scan_type' 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:   ee1703cda8dc777e937dec172da55beaf1a74919
commit: a19a93e4c6a98c9c0f2f5a6db76846f10d7d1f85 scsi: core: pm: Rely on the device driver core for async power management
date:   5 weeks ago
config: sparc64-randconfig-s031-20211116 (attached as .config)
compiler: sparc64-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=a19a93e4c6a98c9c0f2f5a6db76846f10d7d1f85
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout a19a93e4c6a98c9c0f2f5a6db76846f10d7d1f85
        # save the attached .config 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=sparc64 SHELL=/bin/bash drivers/ata/ drivers/scsi/

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


sparse warnings: (new ones prefixed by >>)
>> drivers/scsi/scsi_scan.c:100:6: sparse: sparse: symbol 'scsi_scan_type' was not declared. Should it be static?

vim +/scsi_scan_type +100 drivers/scsi/scsi_scan.c

21db1882f79a1ad Matthew Wilcox  2006-11-22   99  
1d64508810d8d15 Hannes Reinecke 2016-03-17 @100  char scsi_scan_type[7] = SCSI_SCAN_TYPE_DEFAULT;
3e082a910d217b2 Matthew Wilcox  2006-09-28  101  

:::::: The code at line 100 was first introduced by commit
:::::: 1d64508810d8d15867251c75a68d7250278ce2bd scsi: disable automatic target scan

:::::: TO: Hannes Reinecke <hare@xxxxxxx>
:::::: CC: Martin K. Petersen <martin.petersen@xxxxxxxxxx>

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

Attachment: .config.gz
Description: application/gzip