Re: [PATCH] iio: hid-sensors: fix fractional part for unit exponents -7 and -8

[kernel test robot]

Hi Srinivas,

kernel test robot noticed the following build errors:

[auto build test ERROR on jic23-iio/togreg]
[also build test ERROR on linus/master v7.3 next-20261030]
[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#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Srinivas-Pandruvada/iio-hid-sensors-fix-fractional-part-for-unit-exponents-7-and-8/20261102-142308
base:   https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio.git togreg
patch link:    https://lore.kernel.org/r/20261102222309.439895-1-srinivas.pandruvada%40linux.intel.com
patch subject: [PATCH] iio: hid-sensors: fix fractional part for unit exponents -7 and -8
config: i386-randconfig-1001-20261103 (https://download.01.org/0day-ci/archive/20261104/202611040826.T95bI1SU-lkp@xxxxxxxxx/config)
compiler: gcc-12 (Debian 12.4.0-5) 12.4.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261104/202611040826.T95bI1SU-lkp@xxxxxxxxx/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202611040826.T95bI1SU-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

   ld: drivers/iio/common/hid-sensors/hid-sensor-attributes.o: in function `split_micro_fraction':
>> drivers/iio/common/hid-sensors/hid-sensor-attributes.c:102:(.text+0x573): undefined reference to `__udivdi3'


vim +102 drivers/iio/common/hid-sensors/hid-sensor-attributes.c

    95	
    96	static void split_micro_fraction(unsigned int no, int exp, int *val1, int *val2)
    97	{
    98		int divisor = int_pow(10, exp);
    99	
   100		*val1 = no / divisor;
   101		if (exp > 6)
 > 102			*val2 = no % divisor / int_pow(10, exp - 6);
   103		else
   104			*val2 = no % divisor * int_pow(10, 6 - exp);
   105	}
   106	

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