Hi Richard, kernel test robot noticed the following build warnings: [auto build test WARNING on shuah-kselftest/kunit] [also build test WARNING on shuah-kselftest/kunit-fixes linus/master v6.5-rc7 next-20230824] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Richard-Fitzgerald/kunit-string-stream-Don-t-create-a-fragment-for-empty-strings/20230824-223722 base: https://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git kunit patch link: https://lore.kernel.org/r/20230824143129.1957914-8-rf%40opensource.cirrus.com patch subject: [PATCH v5 07/10] kunit: string-stream: Decouple string_stream from kunit config: hexagon-randconfig-001-20230825 (https://download.01.org/0day-ci/archive/20230825/202308251401.n2nyRNLW-lkp@xxxxxxxxx/config) compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a) reproduce: (https://download.01.org/0day-ci/archive/20230825/202308251401.n2nyRNLW-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202308251401.n2nyRNLW-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> lib/kunit/string-stream-test.c:19:25: warning: cast from 'void (*)(const void *)' to 'kunit_action_t *' (aka 'void (*)(void *)') converts to incompatible function type [-Wcast-function-type-strict] 19 | kunit_add_action(test, (kunit_action_t *)kfree, (void *)str); | ^~~~~~~~~~~~~~~~~~~~~~~ 1 warning generated. vim +19 lib/kunit/string-stream-test.c 13 14 static char *get_concatenated_string(struct kunit *test, struct string_stream *stream) 15 { 16 char *str = string_stream_get_string(stream); 17 18 KUNIT_ASSERT_NOT_ERR_OR_NULL(test, str); > 19 kunit_add_action(test, (kunit_action_t *)kfree, (void *)str); 20 21 return str; 22 } 23 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
