Hi Brendan, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on a2f0b878c3ca531a1706cb2a8b079cea3b17bafc] url: https://github.com/0day-ci/linux/commits/Brendan-Higgins/kunit-create-a-c... base: a2f0b878c3ca531a1706cb2a8b079cea3b17bafc reproduce: # apt-get install sparse # sparse version: v0.6.1-173-ge0787745-dirty make ARCH=x86_64 allmodconfig make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp(a)intel.com&gt; sparse warnings: (new ones prefixed by >>) vim +272 fs/ext4/inode-test.c 1cbeab1b242d16 Iurii Zaikin 2019-10-17 271 c475c77d5b5639 Alan Maguire 2020-01-06 @272 kunit_test_suites(&ext4_inode_test_suite); c475c77d5b5639 Alan Maguire 2020-01-06 273 :::::: The code at line 272 was first introduced by commit :::::: c475c77d5b56398303e726969e81208196b3aab3 kunit: allow kunit tests to be loaded as a module :::::: TO: Alan Maguire <alan.maguire(a)oracle.com&gt; :::::: CC: Shuah Khan <skhan(a)linuxfoundation.org&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org