Hi Alexei, FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 23859ae44402f4d935b9ee548135dd1e65e2cbf4 commit: d71fa5c9763c24dd997a2fa4feb7a13a95bab42c bpf: Add kernel module with user mode driver that populates bpffs. date: 2 months ago config: x86_64-randconfig-r016-20201029 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 772aaa602383cf82795572ebcd86b0e660f3579f) 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 x86_64 cross compiling tool for clang build # apt-get install binutils-x86-64-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d71fa5c9763c24dd997a2fa4feb7a13a95bab42c git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout d71fa5c9763c24dd997a2fa4feb7a13a95bab42c # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <l...@intel.com> All errors (new ones prefixed by >>): >> ld.lld: error: undefined symbol: bpf_preload_ops >>> referenced by bpf_preload_kern.c:83 (kernel/bpf/preload/bpf_preload_kern.c:83) >>> bpf/preload/bpf_preload_kern.o:(fini_umd) in archive kernel/built-in.a >>> referenced by bpf_preload_kern.c:83 (kernel/bpf/preload/bpf_preload_kern.c:83) >>> bpf/preload/bpf_preload_kern.o:(fini_umd) in archive kernel/built-in.a >>> referenced by bpf_preload_kern.c:77 (kernel/bpf/preload/bpf_preload_kern.c:77) >>> bpf/preload/bpf_preload_kern.o:(load_umd) in archive kernel/built-in.a >>> referenced 1 more times --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
.config.gz
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