[kbuild-all] Re: [PATCH v2] tracing/cfi: Fix cmp_entries_* functions signature mismatch

Hi Kalesh, Thank you for the patch! Yet something to improve: [auto build test ERROR on 348949d9a4440abdab3b1dc99a9bb660e8c7da7c] url: https://github.com/0day-ci/linux/commits/Kalesh-Singh/tracing-cfi-Fix-cmp... base: 348949d9a4440abdab3b1dc99a9bb660e8c7da7c config: powerpc-allmodconfig (attached as .config) compiler: powerpc-linux-gcc (GCC) 11.2.0 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/aca9efb61e0559ff7abff8c8bce5e1a65... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Kalesh-Singh/tracing-cfi-Fix-cmp_entries_-functions-signature-mismatch/20211014-093824 git checkout aca9efb61e0559ff7abff8c8bce5e1a65a73ccce # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=powerpc 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 >>): kernel/trace/tracing_map.c: In function 'cmp_entries_dup': 839 | const struct tracing_map_sort_entry **pa = A; | ^ kernel/trace/tracing_map.c:840:52: error: initialization discards 'const' qualifier from pointer target type [-Werror=discarded-qualifiers] 840 | const struct tracing_map_sort_entry **pb = B; | ^ kernel/trace/tracing_map.c: In function 'cmp_entries_sum': kernel/trace/tracing_map.c:853:52: error: initialization discards 'const' qualifier from pointer target type [-Werror=discarded-qualifiers] 853 | const struct tracing_map_sort_entry **pa = A; | ^ kernel/trace/tracing_map.c:854:52: error: initialization discards 'const' qualifier from pointer target type [-Werror=discarded-qualifiers] 854 | const struct tracing_map_sort_entry **pb = B; | ^ kernel/trace/tracing_map.c: In function 'cmp_entries_key': kernel/trace/tracing_map.c:884:52: error: initialization discards 'const' qualifier from pointer target type [-Werror=discarded-qualifiers] 884 | const struct tracing_map_sort_entry **pa = A; | ^ kernel/trace/tracing_map.c:885:52: error: initialization discards 'const' qualifier from pointer target type [-Werror=discarded-qualifiers] 885 | const struct tracing_map_sort_entry **pb = B; | ^ cc1: all warnings being treated as errors vim +/const +839 kernel/trace/tracing_map.c 836 837 static int cmp_entries_dup(const void *A, const void *B) 838 { 840 const struct tracing_map_sort_entry **pb = B; 841 const struct tracing_map_sort_entry *a = *pa; 842 const struct tracing_map_sort_entry *b = *pb; 843 int ret = 0; 844 845 if (memcmp(a->key, b->key, a->elt->map->key_size)) 846 ret = 1; 847 848 return ret; 849 } 850 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org