[kbuild-all] Re: [PATCH] trace: Do some cleanups for osnoise tracer

Hi Tang, Thank you for the patch! Yet something to improve: [auto build test ERROR on tip/perf/core] [also build test ERROR on v5.15-rc1 next-20210913] [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] url: https://github.com/0day-ci/linux/commits/Tang-Yizhou/trace-Do-some-cleanu... base: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 4034fb207e302cc0b1f304084d379640c1fb1436 config: i386-randconfig-r005-20210912 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 261cbe98c38f8c1ee1a482fe76511110e790f58a) 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/cecf38d3b5e23a411856f6c8f3e3be903... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Tang-Yizhou/trace-Do-some-cleanups-for-osnoise-tracer/20210913-111459 git checkout cecf38d3b5e23a411856f6c8f3e3be903e439876 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=i386 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): .max = &timerlat_max_period, ^~~~~~~~~~~~~~~~~~~~ kernel/trace/trace_osnoise.c:1827:9: error: initializing 'u64 *' (aka 'unsigned long long *') with an expression of type 'const u64 *' (aka 'const unsigned long long *') discards qualifiers [-Werror,-Wincompatible-pointer-types-discards-qualifiers] .min = &timerlat_min_period, ^~~~~~~~~~~~~~~~~~~~ 2 errors generated. vim +1826 kernel/trace/trace_osnoise.c a955d7eac1779b Daniel Bristot de Oliveira 2021-06-22 1817 a955d7eac1779b Daniel Bristot de Oliveira 2021-06-22 1818 /* a955d7eac1779b Daniel Bristot de Oliveira 2021-06-22 1819 * osnoise/timerlat_period: min 100 us, max 1 s a955d7eac1779b Daniel Bristot de Oliveira 2021-06-22 1820 */ cecf38d3b5e23a Tang Yizhou 2021-09-13 1821 static const u64 timerlat_min_period = 100; cecf38d3b5e23a Tang Yizhou 2021-09-13 1822 static const u64 timerlat_max_period = 1000000; a955d7eac1779b Daniel Bristot de Oliveira 2021-06-22 1823 static struct trace_min_max_param timerlat_period = { a955d7eac1779b Daniel Bristot de Oliveira 2021-06-22 1824 .lock = &interface_lock, a955d7eac1779b Daniel Bristot de Oliveira 2021-06-22 1825 .val = &osnoise_data.timerlat_period, a955d7eac1779b Daniel Bristot de Oliveira 2021-06-22 @1826 .max = &timerlat_max_period, a955d7eac1779b Daniel Bristot de Oliveira 2021-06-22 1827 .min = &timerlat_min_period, a955d7eac1779b Daniel Bristot de Oliveira 2021-06-22 1828 }; a955d7eac1779b Daniel Bristot de Oliveira 2021-06-22 1829 #endif a955d7eac1779b Daniel Bristot de Oliveira 2021-06-22 1830 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org