lkml.org 
[lkml]   [2021]   [Oct]   [14]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: [PATCH v2] tracing/cfi: Fix cmp_entries_* functions signature mismatch
On Thu, Oct 14, 2021 at 4:13 AM kernel test robot <lkp@intel.com> wrote:
>
> 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;
> | ^
>

I posted a v3 to address these:
https://lore.kernel.org/r/20211014045217.3265162-1-kaleshsingh@google.com/

Thanks,
Kalesh
>
> 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
>
> ---
> 0-DAY CI Kernel Test Service, Intel Corporation
> https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
>
> --
> To unsubscribe from this group and stop receiving emails from it, send an email to kernel-team+unsubscribe@android.com.

\
 
 \ /
  Last update: 2021-10-14 18:24    [W:0.079 / U:4.764 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site