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Peter Anvin" , Shuah Khan , Leon Hwang , Peilin Ye , Luis Gerhorst , Viktor Malik , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH bpf-next v2 2/6] bpf, x86: Add 64-bit bitops kfuncs support for x86_64 Message-ID: <202602201931.LBZGbpvs-lkp@intel.com> References: <20260219142933.13904-3-leon.hwang@linux.dev> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260219142933.13904-3-leon.hwang@linux.dev> Hi Leon, kernel test robot noticed the following build errors: [auto build test ERROR on bpf-next/master] url: https://github.com/intel-lab-lkp/linux/commits/Leon-Hwang/bpf-Introduce-64-bit-bitops-kfuncs/20260219-223550 base: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master patch link: https://lore.kernel.org/r/20260219142933.13904-3-leon.hwang%40linux.dev patch subject: [PATCH bpf-next v2 2/6] bpf, x86: Add 64-bit bitops kfuncs support for x86_64 config: x86_64-randconfig-012-20260220 (https://download.01.org/0day-ci/archive/20260220/202602201931.LBZGbpvs-lkp@intel.com/config) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) rustc: rustc 1.88.0 (6b00bc388 2025-06-23) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260220/202602201931.LBZGbpvs-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/oe-kbuild-all/202602201931.LBZGbpvs-lkp@intel.com/ All errors (new ones prefixed by >>): >> ld.lld: error: undefined symbol: bpf_clz64 >>> referenced by bpf_jit_comp.c:1621 (arch/x86/net/bpf_jit_comp.c:1621) >>> arch/x86/net/bpf_jit_comp.o:(do_jit) in archive vmlinux.a >>> referenced by bpf_jit_comp.c:4250 (arch/x86/net/bpf_jit_comp.c:4250) >>> arch/x86/net/bpf_jit_comp.o:(bpf_jit_inlines_kfunc_call) in archive vmlinux.a -- >> ld.lld: error: undefined symbol: bpf_ctz64 >>> referenced by bpf_jit_comp.c:1647 (arch/x86/net/bpf_jit_comp.c:1647) >>> arch/x86/net/bpf_jit_comp.o:(do_jit) in archive vmlinux.a >>> referenced by bpf_jit_comp.c:4247 (arch/x86/net/bpf_jit_comp.c:4247) >>> arch/x86/net/bpf_jit_comp.o:(bpf_jit_inlines_kfunc_call) in archive vmlinux.a -- >> ld.lld: error: undefined symbol: bpf_ffs64 >>> referenced by bpf_jit_comp.c:1673 (arch/x86/net/bpf_jit_comp.c:1673) >>> arch/x86/net/bpf_jit_comp.o:(do_jit) in archive vmlinux.a >>> referenced by bpf_jit_comp.c:4247 (arch/x86/net/bpf_jit_comp.c:4247) >>> arch/x86/net/bpf_jit_comp.o:(bpf_jit_inlines_kfunc_call) in archive vmlinux.a -- >> ld.lld: error: undefined symbol: bpf_fls64 >>> referenced by bpf_jit_comp.c:1677 (arch/x86/net/bpf_jit_comp.c:1677) >>> arch/x86/net/bpf_jit_comp.o:(do_jit) in archive vmlinux.a >>> referenced by bpf_jit_comp.c:4250 (arch/x86/net/bpf_jit_comp.c:4250) >>> arch/x86/net/bpf_jit_comp.o:(bpf_jit_inlines_kfunc_call) in archive vmlinux.a -- >> ld.lld: error: undefined symbol: bpf_popcnt64 >>> referenced by bpf_jit_comp.c:1683 (arch/x86/net/bpf_jit_comp.c:1683) >>> arch/x86/net/bpf_jit_comp.o:(do_jit) in archive vmlinux.a >>> referenced by bpf_jit_comp.c:4253 (arch/x86/net/bpf_jit_comp.c:4253) >>> arch/x86/net/bpf_jit_comp.o:(bpf_jit_inlines_kfunc_call) in archive vmlinux.a -- >> ld.lld: error: undefined symbol: bpf_rol64 >>> referenced by bpf_jit_comp.c:1707 (arch/x86/net/bpf_jit_comp.c:1707) >>> arch/x86/net/bpf_jit_comp.o:(do_jit) in archive vmlinux.a >>> referenced by bpf_jit_comp.c:4256 (arch/x86/net/bpf_jit_comp.c:4256) >>> arch/x86/net/bpf_jit_comp.o:(bpf_jit_inlines_kfunc_call) in archive vmlinux.a -- >> ld.lld: error: undefined symbol: bpf_ror64 >>> referenced by bpf_jit_comp.c:1714 (arch/x86/net/bpf_jit_comp.c:1714) >>> arch/x86/net/bpf_jit_comp.o:(do_jit) in archive vmlinux.a >>> referenced by bpf_jit_comp.c:4256 (arch/x86/net/bpf_jit_comp.c:4256) >>> arch/x86/net/bpf_jit_comp.o:(bpf_jit_inlines_kfunc_call) in archive vmlinux.a -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki