tree: https://github.com/hnaz/linux-mm master head: 673977c1d5c4c5bc15abf8f01ebaddc66116a9cd commit: 52880bd2b8272052d5ccf95f94704a959796c9f6 [478/481] mutex subsystem, synchro-test module config: hexagon-allyesconfig (https://download.01.org/0day-ci/archive/20220329/202203292115.plWUiMYU-lkp@xxxxxxxxx/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 0f6d9501cf49ce02937099350d08f20c4af86f3d) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/hnaz/linux-mm/commit/52880bd2b8272052d5ccf95f94704a959796c9f6 git remote add hnaz-mm https://github.com/hnaz/linux-mm git fetch --no-tags hnaz-mm master git checkout 52880bd2b8272052d5ccf95f94704a959796c9f6 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): kernel/synchro-test.c:267:2: error: implicit declaration of function 'complete_and_exit' is invalid in C99 [-Werror,-Wimplicit-function-declaration] complete_and_exit(&sp_comp[N], 0); ^ kernel/synchro-test.c:268:1: error: non-void function does not return a value [-Werror,-Wreturn-type] } ^ kernel/synchro-test.c:288:2: error: implicit declaration of function 'complete_and_exit' is invalid in C99 [-Werror,-Wimplicit-function-declaration] complete_and_exit(&mx_comp[N], 0); ^ kernel/synchro-test.c:289:1: error: non-void function does not return a value [-Werror,-Wreturn-type] } ^ kernel/synchro-test.c:309:2: error: implicit declaration of function 'complete_and_exit' is invalid in C99 [-Werror,-Wimplicit-function-declaration] complete_and_exit(&sm_comp[N], 0); ^ kernel/synchro-test.c:310:1: error: non-void function does not return a value [-Werror,-Wreturn-type] } ^ kernel/synchro-test.c:332:2: error: implicit declaration of function 'complete_and_exit' is invalid in C99 [-Werror,-Wimplicit-function-declaration] complete_and_exit(&rd_comp[N], 0); ^ kernel/synchro-test.c:333:1: error: non-void function does not return a value [-Werror,-Wreturn-type] } ^ kernel/synchro-test.c:355:2: error: implicit declaration of function 'complete_and_exit' is invalid in C99 [-Werror,-Wimplicit-function-declaration] complete_and_exit(&wr_comp[N], 0); ^ kernel/synchro-test.c:356:1: error: non-void function does not return a value [-Werror,-Wreturn-type] } ^ kernel/synchro-test.c:383:2: error: implicit declaration of function 'complete_and_exit' is invalid in C99 [-Werror,-Wimplicit-function-declaration] complete_and_exit(&dg_comp[N], 0); ^ kernel/synchro-test.c:384:1: error: non-void function does not return a value [-Werror,-Wreturn-type] } ^ >> kernel/synchro-test.c:393:49: warning: variable 'zeros' set but not used [-Wunused-but-set-variable] unsigned int tot = 0, max = 0, min = UINT_MAX, zeros = 0, cnt; ^ 1 warning and 12 errors generated. vim +/zeros +393 kernel/synchro-test.c 390 391 static unsigned int total(const char *what, unsigned int counts[], int num) 392 { > 393 unsigned int tot = 0, max = 0, min = UINT_MAX, zeros = 0, cnt; 394 int loop; 395 396 for (loop = 0; loop < num; loop++) { 397 cnt = counts[loop]; 398 399 if (cnt == 0) { 400 zeros++; 401 min = 0; 402 continue; 403 } 404 405 tot += cnt; 406 if (tot > max) 407 max = tot; 408 if (tot < min) 409 min = tot; 410 } 411 412 if (verbose && tot > 0) { 413 printk("%s:", what); 414 415 for (loop = 0; loop < num; loop++) { 416 cnt = counts[loop]; 417 418 if (cnt == 0) 419 printk(" zzz"); 420 else 421 printk(" %d%%", cnt * 100 / tot); 422 } 423 424 printk("\n"); 425 } 426 427 return tot; 428 } 429 -- 0-DAY CI Kernel Test Service https://01.org/lkp
