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charset=us-ascii Content-Disposition: inline :::::: :::::: Manual check reason: "low confidence bisect report" :::::: Manual check reason: "only suspicious fbc files changed" :::::: BCC: lkp@intel.com CC: oe-kbuild-all@lists.linux.dev In-Reply-To: <20260602-tools_build_fix_zero_init_bpf_only-v2-8-c76e5250ea1c@arm.com> References: <20260602-tools_build_fix_zero_init_bpf_only-v2-8-c76e5250ea1c@arm.com> TO: Leo Yan TO: Quentin Monnet TO: Alexei Starovoitov TO: Daniel Borkmann TO: Andrii Nakryiko TO: Martin KaFai Lau TO: Eduard Zingerman TO: Song Liu TO: Yonghong Song TO: John Fastabend TO: KP Singh TO: Stanislav Fomichev TO: Hao Luo TO: Jiri Olsa TO: Shuah Khan TO: Lorenz Bauer TO: Nathan Chancellor TO: Nick Desaulniers TO: Bill Wendling TO: Justin Stitt CC: Arnaldo Carvalho de Melo CC: Namhyung Kim CC: Ian Rogers CC: James Clark CC: Kees Cook CC: bpf@vger.kernel.org CC: linux-kernel@vger.kernel.org CC: linux-kselftest@vger.kernel.org CC: llvm@lists.linux.dev CC: Leo Yan Hi Leo, kernel test robot noticed the following build warnings: [auto build test WARNING on b93c55b4932dd7e32dca8cf34a3443cc87a02906] url: https://github.com/intel-lab-lkp/linux/commits/Leo-Yan/bpftool-Pass-host-flags-to-bootstrap-libbpf/20260602-231100 base: b93c55b4932dd7e32dca8cf34a3443cc87a02906 patch link: https://lore.kernel.org/r/20260602-tools_build_fix_zero_init_bpf_only-v2-8-c76e5250ea1c%40arm.com patch subject: [PATCH bpf-next v2 8/8] selftests/bpf: Avoid static LLVM linking for cross builds :::::: branch date: 6 hours ago :::::: commit date: 6 hours ago config: riscv-allnoconfig-bpf (https://download.01.org/0day-ci/archive/20260602/202606022207.PcDtt93e-lkp@intel.com/config) compiler: riscv64-linux-gnu-gcc (Debian 14.2.0-19) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260602/202606022207.PcDtt93e-lkp@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/r/202606022207.PcDtt93e-lkp@intel.com/ All warnings (new ones prefixed by >>): Makefile.config:577: No elfutils/debuginfod.h found, no debuginfo server support, please install libdebuginfod-dev/elfutils-debuginfod-client-devel or equivalent Makefile.config:964: No libllvm 13+ found, slower source file resolution, please install llvm-devel/llvm-dev Makefile.config:1160: Rust is not found. Test workloads with rust are disabled. PERF_VERSION = 7.1.rc5.g381f7c643a0a >> cc1: warning: '-Wformat-y2k' ignored without '-Wformat' [-Wformat-y2k] >> cc1: warning: '-Wformat-security' ignored without '-Wformat' [-Wformat-security] builtin-trace.c: In function 'syscall_arg__strtoul_btf_enum': builtin-trace.c:967:27: error: comparison of integer expressions of different signedness: 'int' and '__u32' {aka 'unsigned int'} [-Werror=sign-compare] 967 | for (int i = 0; i < btf_vlen(bt); ++i, ++be) { | ^ util/btf.c: In function '__btf_type__find_member_by_name': util/btf.c:19:43: error: comparison of integer expressions of different signedness: 'int' and '__u32' {aka 'unsigned int'} [-Werror=sign-compare] 19 | for (i = 0, m = btf_members(t); i < btf_vlen(t); i++, m++) { | ^ cc1: all warnings being treated as errors make[4]: *** [tools/build/Makefile.build:95: util/btf.o] Error 1 make[4]: *** Waiting for unfinished jobs.... cc1: all warnings being treated as errors make[3]: *** [tools/build/Makefile.build:95: builtin-trace.o] Error 1 make[3]: *** Waiting for unfinished jobs.... make[3]: *** [tools/build/Makefile.build:158: util] Error 2 make[2]: *** [Makefile.perf:802: perf-util-in.o] Error 2 make[2]: *** Waiting for unfinished jobs.... make[2]: *** [Makefile.perf:775: perf-in.o] Error 2 make[1]: *** [Makefile.perf:288: sub-make] Error 2 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki