Hi David, I love your patch! Perhaps something to improve: [auto build test WARNING on 5f6b99d0287de2c2d0b5e7abcb0092d553ad804a] url: https://github.com/0day-ci/linux/commits/David-Gow/kunit-Print-test-statistics-on-failure/20201211-153009 base: 5f6b99d0287de2c2d0b5e7abcb0092d553ad804a config: arc-randconfig-r006-20201210 (attached as .config) compiler: arceb-elf-gcc (GCC) 9.3.0 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/0day-ci/linux/commit/2bdf1b55a1b3673a1a02f71457fc52b497fc7223 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review David-Gow/kunit-Print-test-statistics-on-failure/20201211-153009 git checkout 2bdf1b55a1b3673a1a02f71457fc52b497fc7223 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arc If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): In file included from lib/kunit/test.c:9: lib/kunit/test.c: In function 'kunit_print_test_stats': >> include/linux/kern_levels.h:5:18: warning: format '%lu' expects argument of type 'long unsigned int', but argument 3 has type 'size_t' {aka 'unsigned int'} [-Wformat=] 5 | #define KERN_SOH "\001" /* ASCII Start Of Header */ | ^~~~~~ include/kunit/test.h:621:10: note: in definition of macro 'kunit_log' 621 | printk(lvl fmt, ##__VA_ARGS__); \ | ^~~ include/linux/kern_levels.h:14:19: note: in expansion of macro 'KERN_SOH' 14 | #define KERN_INFO KERN_SOH "6" /* informational */ | ^~~~~~~~ lib/kunit/test.c:46:12: note: in expansion of macro 'KERN_INFO' 46 | kunit_log(KERN_INFO, test, | ^~~~~~~~~ lib/kunit/test.c:48:14: note: format string is defined here 48 | "# %s: %lu / %lu test parameters failed", | ~~^ | | | long unsigned int | %u In file included from lib/kunit/test.c:9: include/linux/kern_levels.h:5:18: warning: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type 'size_t' {aka 'unsigned int'} [-Wformat=] 5 | #define KERN_SOH "\001" /* ASCII Start Of Header */ | ^~~~~~ include/kunit/test.h:621:10: note: in definition of macro 'kunit_log' 621 | printk(lvl fmt, ##__VA_ARGS__); \ | ^~~ include/linux/kern_levels.h:14:19: note: in expansion of macro 'KERN_SOH' 14 | #define KERN_INFO KERN_SOH "6" /* informational */ | ^~~~~~~~ lib/kunit/test.c:46:12: note: in expansion of macro 'KERN_INFO' 46 | kunit_log(KERN_INFO, test, | ^~~~~~~~~ lib/kunit/test.c:48:20: note: format string is defined here 48 | "# %s: %lu / %lu test parameters failed", | ~~^ | | | long unsigned int | %u lib/kunit/test.c: In function 'kunit_log_append': lib/kunit/test.c:72:2: warning: function 'kunit_log_append' might be a candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format] 72 | vsnprintf(line, sizeof(line), fmt, args); | ^~~~~~~~~ In file included from lib/kunit/test.c:9: lib/kunit/test.c: In function 'kunit_print_suite_stats': >> include/linux/kern_levels.h:5:18: warning: format '%lu' expects argument of type 'long unsigned int', but argument 3 has type 'size_t' {aka 'unsigned int'} [-Wformat=] 5 | #define KERN_SOH "\001" /* ASCII Start Of Header */ | ^~~~~~ include/kunit/test.h:621:10: note: in definition of macro 'kunit_log' 621 | printk(lvl fmt, ##__VA_ARGS__); \ | ^~~ include/linux/kern_levels.h:14:19: note: in expansion of macro 'KERN_SOH' 14 | #define KERN_INFO KERN_SOH "6" /* informational */ | ^~~~~~~~ lib/kunit/test.c:394:12: note: in expansion of macro 'KERN_INFO' 394 | kunit_log(KERN_INFO, suite, | ^~~~~~~~~ lib/kunit/test.c:395:15: note: format string is defined here 395 | "# %s: (%lu / %lu) tests failed (%lu / %lu test parameters)", | ~~^ | | | long unsigned int | %u In file included from lib/kunit/test.c:9: include/linux/kern_levels.h:5:18: warning: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type 'size_t' {aka 'unsigned int'} [-Wformat=] 5 | #define KERN_SOH "\001" /* ASCII Start Of Header */ | ^~~~~~ include/kunit/test.h:621:10: note: in definition of macro 'kunit_log' 621 | printk(lvl fmt, ##__VA_ARGS__); \ | ^~~ include/linux/kern_levels.h:14:19: note: in expansion of macro 'KERN_SOH' 14 | #define KERN_INFO KERN_SOH "6" /* informational */ | ^~~~~~~~ lib/kunit/test.c:394:12: note: in expansion of macro 'KERN_INFO' 394 | kunit_log(KERN_INFO, suite, | ^~~~~~~~~ lib/kunit/test.c:395:21: note: format string is defined here 395 | "# %s: (%lu / %lu) tests failed (%lu / %lu test parameters)", | ~~^ | | | long unsigned int | %u In file included from lib/kunit/test.c:9: include/linux/kern_levels.h:5:18: warning: format '%lu' expects argument of type 'long unsigned int', but argument 5 has type 'size_t' {aka 'unsigned int'} [-Wformat=] 5 | #define KERN_SOH "\001" /* ASCII Start Of Header */ | ^~~~~~ include/kunit/test.h:621:10: note: in definition of macro 'kunit_log' 621 | printk(lvl fmt, ##__VA_ARGS__); \ | ^~~ include/linux/kern_levels.h:14:19: note: in expansion of macro 'KERN_SOH' 14 | #define KERN_INFO KERN_SOH "6" /* informational */ | ^~~~~~~~ lib/kunit/test.c:394:12: note: in expansion of macro 'KERN_INFO' 394 | kunit_log(KERN_INFO, suite, | ^~~~~~~~~ lib/kunit/test.c:395:40: note: format string is defined here 395 | "# %s: (%lu / %lu) tests failed (%lu / %lu test parameters)", | ~~^ | | | long unsigned int | %u In file included from lib/kunit/test.c:9: include/linux/kern_levels.h:5:18: warning: format '%lu' expects argument of type 'long unsigned int', but argument 6 has type 'size_t' {aka 'unsigned int'} [-Wformat=] 5 | #define KERN_SOH "\001" /* ASCII Start Of Header */ | ^~~~~~ include/kunit/test.h:621:10: note: in definition of macro 'kunit_log' 621 | printk(lvl fmt, ##__VA_ARGS__); \ | ^~~ include/linux/kern_levels.h:14:19: note: in expansion of macro 'KERN_SOH' 14 | #define KERN_INFO KERN_SOH "6" /* informational */ | ^~~~~~~~ lib/kunit/test.c:394:12: note: in expansion of macro 'KERN_INFO' 394 | kunit_log(KERN_INFO, suite, | ^~~~~~~~~ lib/kunit/test.c:395:46: note: format string is defined here 395 | "# %s: (%lu / %lu) tests failed (%lu / %lu test parameters)", | ~~^ | | | long unsigned int | %u vim +5 include/linux/kern_levels.h 314ba3520e513a Joe Perches 2012-07-30 4 04d2c8c83d0e3a Joe Perches 2012-07-30 @5 #define KERN_SOH "\001" /* ASCII Start Of Header */ 04d2c8c83d0e3a Joe Perches 2012-07-30 6 #define KERN_SOH_ASCII '\001' 04d2c8c83d0e3a Joe Perches 2012-07-30 7 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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