[mcgrof:20210910-sysfs-generic-deadlock-fix 3/10] lib/test_sysfs.c:148:26: sparse: sparse: symbol 'first_test_dev' was not declared. Should it be static?

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux.git 20210910-sysfs-generic-deadlock-fix
head:   45e10e4ef8d083225f3fcd0157b447f2de52b5ed
commit: ed2111f617d4365d6a7a5032ae2002e434d901bc [3/10] selftests: add tests_sysfs module
config: x86_64-rhel-8.3-kselftests (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.4-dirty
        # https://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux.git/commit/?id=ed2111f617d4365d6a7a5032ae2002e434d901bc
        git remote add mcgrof https://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux.git
        git fetch --no-tags mcgrof 20210910-sysfs-generic-deadlock-fix
        git checkout ed2111f617d4365d6a7a5032ae2002e434d901bc
        # save the attached .config to linux build tree
        make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=x86_64 SHELL=/bin/bash

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


sparse warnings: (new ones prefixed by >>)
>> lib/test_sysfs.c:148:26: sparse: sparse: symbol 'first_test_dev' was not declared. Should it be static?

vim +/first_test_dev +148 lib/test_sysfs.c

   147	
 > 148	struct sysfs_test_device *first_test_dev;
   149	

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Attachment: .config.gz
Description: application/gzip