tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 3bf222d317a20170ee17f082626c1e0f83537e13 commit: 0087a681fa8c22f719a567317e8f8f894d734b9c [10107/10661] libbpf: Automatically fix up BPF_MAP_TYPE_RINGBUF size, if necessary config: hexagon-randconfig-r036-20220510 (https://download.01.org/0day-ci/archive/20220511/202205110646.qxnrqHzi-lkp@xxxxxxxxx/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 18dd123c56754edf62c7042dcf23185c3727610f) 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 # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=0087a681fa8c22f719a567317e8f8f894d734b9c 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 0087a681fa8c22f719a567317e8f8f894d734b9c # 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=hexagon prepare If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): scripts/genksyms/parse.y: warning: 9 shift/reduce conflicts [-Wconflicts-sr] scripts/genksyms/parse.y: warning: 5 reduce/reduce conflicts [-Wconflicts-rr] scripts/genksyms/parse.y: note: rerun with option '-Wcounterexamples' to generate conflict counterexamples >> libbpf.c:4954:8: error: variable 'i' set but not used [-Werror,-Wunused-but-set-variable] __u32 i, mul; ^ 1 error generated. make[5]: *** [tools/build/Makefile.build:96: tools/bpf/resolve_btfids/libbpf/staticobjs/libbpf.o] Error 1 make[5]: *** Waiting for unfinished jobs.... make[4]: *** [Makefile:157: tools/bpf/resolve_btfids/libbpf/staticobjs/libbpf-in.o] Error 2 make[3]: *** [Makefile:55: tools/bpf/resolve_btfids//libbpf/libbpf.a] Error 2 make[2]: *** [Makefile:72: bpf/resolve_btfids] Error 2 make[1]: *** [Makefile:1337: tools/bpf/resolve_btfids] Error 2 <stdin>:1517:2: warning: syscall clone3 not implemented [-W#warnings] #warning syscall clone3 not implemented ^ 1 warning generated. make[1]: Target 'prepare' not remade because of errors. make: *** [Makefile:219: __sub-make] Error 2 make: Target 'prepare' not remade because of errors. -- 0-DAY CI Kernel Test Service https://01.org/lkp