Messages in this thread | | | Date | Thu, 14 Oct 2021 19:12:29 +0800 | From | kernel test robot <> | Subject | Re: [PATCH v2] tracing/cfi: Fix cmp_entries_* functions signature mismatch |
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Hi Kalesh,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on 348949d9a4440abdab3b1dc99a9bb660e8c7da7c]
url: https://github.com/0day-ci/linux/commits/Kalesh-Singh/tracing-cfi-Fix-cmp_entries_-functions-signature-mismatch/20211014-093824 base: 348949d9a4440abdab3b1dc99a9bb660e8c7da7c config: arm64-randconfig-r005-20211014 (attached as .config) compiler: aarch64-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/aca9efb61e0559ff7abff8c8bce5e1a65a73ccce 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=arm64
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
kernel/trace/tracing_map.c: In function 'cmp_entries_dup': >> kernel/trace/tracing_map.c:839:52: warning: initialization discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] 839 | const struct tracing_map_sort_entry **pa = A; | ^ kernel/trace/tracing_map.c:840:52: warning: initialization discards 'const' qualifier from pointer target type [-Wdiscarded-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: warning: initialization discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] 853 | const struct tracing_map_sort_entry **pa = A; | ^ kernel/trace/tracing_map.c:854:52: warning: initialization discards 'const' qualifier from pointer target type [-Wdiscarded-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: warning: initialization discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] 884 | const struct tracing_map_sort_entry **pa = A; | ^ kernel/trace/tracing_map.c:885:52: warning: initialization discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] 885 | const struct tracing_map_sort_entry **pb = B; | ^
vim +/const +839 kernel/trace/tracing_map.c
836 837 static int cmp_entries_dup(const void *A, const void *B) 838 { > 839 const struct tracing_map_sort_entry **pa = A; 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
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