tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   7da9fed0474b4cd46055dd92d55c42faf32c19ac
commit: afd5dde9a186b8fc5742fff707f184760c4af1a9 [11283/12665] RISC-V: KVM: Provide UAPI for Zicbom block size
config: riscv-buildonly-randconfig-r002-20221002
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 791a7ae1ba3efd6bca96338e10ffde557ba83920)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # install riscv cross compiling tool for clang build
        # apt-get install binutils-riscv64-linux-gnu
        # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=afd5dde9a186b8fc5742fff707f184760c4af1a9
        git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
        git fetch --no-tags linux-next master
        git checkout afd5dde9a186b8fc5742fff707f184760c4af1a9
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=riscv SHELL=/bin/bash

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

All errors (new ones prefixed by >>, old ones prefixed by <<):

>> ERROR: modpost: "riscv_cbom_block_size" [arch/riscv/kvm/kvm.ko] undefined!

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp