tree: https://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git merge.nfs-fs_parse.1 head: c82e7d8dd98e4161b2d897edd44457810b8247fd commit: 8c134c15d6ac9f2c35eab8e0b17afb50d766c42e [4/26] don't bother with explicit length argument for __lookup_constant() config: m68k-allmodconfig (attached as .config) compiler: m68k-linux-gcc (GCC) 7.5.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout 8c134c15d6ac9f2c35eab8e0b17afb50d766c42e # save the attached .config to linux build tree GCC_VERSION=7.5.0 make.cross ARCH=m68k If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@xxxxxxxxx> Note: the vfs/merge.nfs-fs_parse.1 HEAD c82e7d8dd98e4161b2d897edd44457810b8247fd builds fine. It only hurts bisectibility. All errors (new ones prefixed by >>): >> ERROR: "lookup_constant" [fs/nfs/nfs.ko] undefined! --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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