Re: [PATCH v4 2/2] fs: ext4: Modify inode-test.c to use KUnit parameterized testing feature

[Arpitha Raghunandan <98.arpi@gmail.com>]

On 28/10/20 2:00 pm, Marco Elver wrote:
> On Wed, 28 Oct 2020 at 00:50, kernel test robot <lkp@intel.com> wrote:
>>
>> Hi Arpitha,
>>
>> Thank you for the patch! Perhaps something to improve:
>>
>> [auto build test WARNING on ext4/dev]
>> [also build test WARNING on linus/master v5.10-rc1 next-20201027]
>> [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/Arpitha-Raghunandan/kunit-Support-for-Parameterized-Testing/20201028-015018
>> base:   https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git dev
>> config: mips-randconfig-r016-20201027 (attached as .config)
>> compiler: mipsel-linux-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/2de1e52708cd83d1dc4c718876683f6809045a98
>>         git remote add linux-review https://github.com/0day-ci/linux
>>         git fetch --no-tags linux-review Arpitha-Raghunandan/kunit-Support-for-Parameterized-Testing/20201028-015018
>>         git checkout 2de1e52708cd83d1dc4c718876683f6809045a98
>>         # save the attached .config to linux build tree
>>         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=mips
>>
>> 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 >>):
>>
>>    In file included from fs/ext4/inode-test.c:7:
>>    fs/ext4/inode-test.c: In function 'ext4_inode_gen_params':
>>>> include/kunit/test.h:1735:58: warning: return discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
>>     1735 |   return __next - (array) < ARRAY_SIZE((array)) ? __next : NULL;   \
>>    fs/ext4/inode-test.c:214:1: note: in expansion of macro 'KUNIT_ARRAY_PARAM'
>>      214 | KUNIT_ARRAY_PARAM(ext4_inode, test_data);
>>          | ^~~~~~~~~~~~~~~~~
> 
> So this means we probably want to make the param_value, and the return
> and prev types of the generator "const void*".
> 
> Thanks,
> -- Marco
> 

Okay, I'll fix this.
Thanks!