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-rc6 next-20230809] [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-Improve-testing-of-string_stream/20230814-212947 base: https://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git kunit patch link: https://lore.kernel.org/r/20230814132309.32641-8-rf%40opensource.cirrus.com patch subject: [PATCH v4 07/10] kunit: string-stream: Decouple string_stream from kunit config: hexagon-randconfig-r014-20230815 (https://download.01.org/0day-ci/archive/20230815/202308150347.LvFXkSdz-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/20230815/202308150347.LvFXkSdz-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/202308150347.LvFXkSdz-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> lib/kunit/string-stream.c:199:38: warning: cast from 'void (*)(struct string_stream *)' to 'kunit_action_t *' (aka 'void (*)(void *)') converts to incompatible function type [-Wcast-function-type-strict] 199 | if (kunit_add_action_or_reset(test, (kunit_action_t *)raw_free_string_stream, stream) != 0) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/compiler.h:55:47: note: expanded from macro 'if' 55 | #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) | ^~~~ include/linux/compiler.h:57:52: note: expanded from macro '__trace_if_var' 57 | #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) | ^~~~ >> lib/kunit/string-stream.c:199:38: warning: cast from 'void (*)(struct string_stream *)' to 'kunit_action_t *' (aka 'void (*)(void *)') converts to incompatible function type [-Wcast-function-type-strict] 199 | if (kunit_add_action_or_reset(test, (kunit_action_t *)raw_free_string_stream, stream) != 0) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/compiler.h:55:47: note: expanded from macro 'if' 55 | #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) | ^~~~ include/linux/compiler.h:57:61: note: expanded from macro '__trace_if_var' 57 | #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) | ^~~~ >> lib/kunit/string-stream.c:199:38: warning: cast from 'void (*)(struct string_stream *)' to 'kunit_action_t *' (aka 'void (*)(void *)') converts to incompatible function type [-Wcast-function-type-strict] 199 | if (kunit_add_action_or_reset(test, (kunit_action_t *)raw_free_string_stream, stream) != 0) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/compiler.h:55:47: note: expanded from macro 'if' 55 | #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) | ^~~~ include/linux/compiler.h:57:86: note: expanded from macro '__trace_if_var' 57 | #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) | ^~~~ include/linux/compiler.h:68:3: note: expanded from macro '__trace_if_value' 68 | (cond) ? \ | ^~~~ lib/kunit/string-stream.c:210:29: warning: cast from 'void (*)(struct string_stream *)' to 'kunit_action_t *' (aka 'void (*)(void *)') converts to incompatible function type [-Wcast-function-type-strict] 210 | kunit_release_action(test, (kunit_action_t *)raw_free_string_stream, (void *)stream); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 4 warnings generated. vim +199 lib/kunit/string-stream.c 188 189 struct string_stream *alloc_string_stream(struct kunit *test, gfp_t gfp) 190 { 191 struct string_stream *stream; 192 193 stream = raw_alloc_string_stream(gfp); 194 if (IS_ERR(stream)) 195 return stream; 196 197 stream->test = test; 198 > 199 if (kunit_add_action_or_reset(test, (kunit_action_t *)raw_free_string_stream, stream) != 0) 200 return ERR_PTR(-ENOMEM); 201 202 return stream; 203 } 204 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
