Hi Jing, Thank you for the patch! Yet something to improve: [auto build test ERROR on 7caa04b36f204a01dac65582b71d26d190a1e022] url: https://github.com/0day-ci/linux/commits/Jing-Zhang/Linear-and-Logarithmic-histogram-statistics/20210707-020549 base: 7caa04b36f204a01dac65582b71d26d190a1e022 config: i386-randconfig-a005-20210712 (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://github.com/0day-ci/linux/commit/aba26c018828dadbff3f53e058c161fab2b09d35 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Jing-Zhang/Linear-and-Logarithmic-histogram-statistics/20210707-020549 git checkout aba26c018828dadbff3f53e058c161fab2b09d35 # save the attached .config to linux build tree mkdir build_dir make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): ld: arch/x86/../../virt/kvm/binary_stats.o: in function `kvm_stats_linear_hist_update': >> binary_stats.c:(.text+0x1ac): undefined reference to `__udivdi3' --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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