On 2022/10/6 8:24, kernel test robot wrote: > Hi Zhen, > > Thank you for the patch! Yet something to improve: > > [auto build test ERROR on mcgrof/modules-next] > [also build test ERROR on rostedt-trace/for-next v6.0] > [cannot apply to linus/master next-20221005] > [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/Zhen-Lei/kallsyms-Optimizes-the-performance-of-lookup-symbols/20220924-202522 > base: https://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux.git modules-next > config: i386-allyesconfig > compiler: gcc-11 (Debian 11.3.0-5) 11.3.0 > reproduce (this is a W=1 build): > # https://github.com/intel-lab-lkp/linux/commit/43e45bdbf95415fc26a9d55e7db43a75bdb8e99a > git remote add linux-review https://github.com/intel-lab-lkp/linux > git fetch --no-tags linux-review Zhen-Lei/kallsyms-Optimizes-the-performance-of-lookup-symbols/20220924-202522 > git checkout 43e45bdbf95415fc26a9d55e7db43a75bdb8e99a > # save the config file > mkdir build_dir && cp config build_dir/.config > make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash > > If you fix the issue, kindly add following tag where applicable > | Reported-by: kernel test robot <lkp@xxxxxxxxx> > > All errors (new ones prefixed by >>): > > ld: kernel/kallsyms_selftest.o: in function `test_perf_kallsyms_lookup_name': >>> kallsyms_selftest.c:(.text.unlikely+0x5e3): undefined reference to `__udivdi3' > ld: kernel/kallsyms_selftest.o: in function `test_kallsyms_compression_ratio': > kallsyms_selftest.c:(.text.unlikely+0x771): undefined reference to `__udivdi3' > OK, thanks, I should use do_div() to calculate percentage. -- Regards, Zhen Lei
