Hi Luigi,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linux/master]
[also build test ERROR on linus/master v5.6-rc5 next-20200310]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url:    https://github.com/0day-ci/linux/commits/Luigi-Rizzo/kstats-kernel-metric-collector/20200227-022930
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git f5ae2ea6347a308cfe91f53b53682ce635497d0d
config: i386-randconfig-a003-20200310 (attached as .config)
compiler: gcc-7 (Debian 7.5.0-5) 7.5.0
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   ld: lib/kstats.o: in function `ks_show_entry':
   lib/kstats.c:124: undefined reference to `__udivdi3'
   ld: lib/kstats.o: in function `ks_print':
   lib/kstats.c:63: undefined reference to `__umoddi3'
>> ld: lib/kstats.c:63: undefined reference to `__udivdi3'
>> ld: lib/kstats.c:63: undefined reference to `__umoddi3'
>> ld: lib/kstats.c:63: undefined reference to `__udivdi3'
   ld: lib/kstats.o: in function `ks_show_entry':
   lib/kstats.c:129: undefined reference to `__udivdi3'

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org