Hi Jinjie, kernel test robot noticed the following build warnings: [auto build test WARNING on linus/master] [also build test WARNING on v6.6-rc3 next-20230926] [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/Jinjie-Ruan/kunit-Fix-missed-memory-release-in-kunit_free_suite_set/20230922-151243 base: linus/master patch link: https://lore.kernel.org/r/20230922071020.2554677-5-ruanjinjie%40huawei.com patch subject: [PATCH v3 4/4] kunit: test: Fix the possible memory leak in executor_test config: powerpc-allyesconfig (https://download.01.org/0day-ci/archive/20230927/202309270433.wGmFRGjd-lkp@xxxxxxxxx/config) compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230927/202309270433.wGmFRGjd-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/202309270433.wGmFRGjd-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): In file included from lib/kunit/executor.c:353: >> lib/kunit/executor_test.c:278:4: warning: cast from 'void (*)(struct kunit_suite_set *)' to 'kunit_action_t *' (aka 'void (*)(void *)') converts to incompatible function type [-Wcast-function-type-strict] 278 | (kunit_action_t *)free_suite_set, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 1 warning generated. vim +278 lib/kunit/executor_test.c 264 265 /* Use the resource API to register a call to free_suite_set. 266 * Since we never actually use the resource, it's safe to use on const data. 267 */ 268 static void free_suite_set_at_end(struct kunit *test, const void *to_free) 269 { 270 if (!((struct kunit_suite_set *)to_free)->start) 271 return; 272 273 struct kunit_suite_set *free = kzalloc(sizeof(struct kunit_suite_set), 274 GFP_KERNEL); 275 *free = *(struct kunit_suite_set *)to_free; 276 277 kunit_add_action(test, > 278 (kunit_action_t *)free_suite_set, 279 (void *)free); 280 } 281 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki