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X-CSE-ConnectionGUID: 6gcxJe1SSeiyFrrAQIkscQ== X-CSE-MsgGUID: TyYFx1RiRq2xDpvRbvJwgA== X-IronPort-AV: E=McAfee;i="6800,10657,11652"; a="68320999" X-IronPort-AV: E=Sophos;i="6.21,174,1763452800"; d="scan'208";a="68320999" Received: from fmviesa007.fm.intel.com ([10.60.135.147]) by orvoesa111.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Dec 2025 07:31:20 -0800 X-CSE-ConnectionGUID: NKMeCWRgTZChJYcusXWGbg== X-CSE-MsgGUID: lFMya9Z5RRW5ZK8z7vYhHA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,174,1763452800"; d="scan'208";a="199688756" Received: from lkp-server02.sh.intel.com (HELO dd3453e2b682) ([10.239.97.151]) by fmviesa007.fm.intel.com with ESMTP; 24 Dec 2025 07:31:16 -0800 Received: from kbuild by dd3453e2b682 with local (Exim 4.98.2) (envelope-from ) id 1vYQpW-000000003C5-0zx2; Wed, 24 Dec 2025 15:31:14 +0000 Date: Wed, 24 Dec 2025 23:30:37 +0800 From: kernel test robot To: Yazhou Tang , bpf@vger.kernel.org Cc: oe-kbuild-all@lists.linux.dev, ast@kernel.org, daniel@iogearbox.net, john.fastabend@gmail.com, andrii@kernel.org, martin.lau@linux.dev, eddyz87@gmail.com, song@kernel.org, yonghong.song@linux.dev, kpsingh@kernel.org, sdf@fomichev.me, haoluo@google.com, jolsa@kernel.org, tangyazhou518@outlook.com, shenghaoyuan0928@163.com, ziye@zju.edu.cn Subject: Re: [PATCH bpf-next v2 1/2] bpf: Add interval and tnum analysis for signed and unsigned BPF_DIV Message-ID: <202512242332.vFPARGR1-lkp@intel.com> References: <20251223091120.2413435-2-tangyazhou@zju.edu.cn> Precedence: bulk X-Mailing-List: bpf@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: <20251223091120.2413435-2-tangyazhou@zju.edu.cn> Hi Yazhou, 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/Yazhou-Tang/bpf-Add-interval-and-tnum-analysis-for-signed-and-unsigned-BPF_DIV/20251223-171652 base: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master patch link: https://lore.kernel.org/r/20251223091120.2413435-2-tangyazhou%40zju.edu.cn patch subject: [PATCH bpf-next v2 1/2] bpf: Add interval and tnum analysis for signed and unsigned BPF_DIV config: i386-buildonly-randconfig-002-20251224 (https://download.01.org/0day-ci/archive/20251224/202512242332.vFPARGR1-lkp@intel.com/config) compiler: gcc-14 (Debian 14.2.0-19) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251224/202512242332.vFPARGR1-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/202512242332.vFPARGR1-lkp@intel.com/ All errors (new ones prefixed by >>): ld: kernel/bpf/verifier.o: in function `__bpf_sdiv': verifier.c:(.text+0x10b8): undefined reference to `__divdi3' ld: kernel/bpf/verifier.o: in function `adjust_scalar_min_max_vals': verifier.c:(.text+0x1195b): undefined reference to `__udivdi3' >> ld: verifier.c:(.text+0x11974): undefined reference to `__udivdi3' ld: kernel/bpf/tnum.o: in function `tnum_udiv': tnum.c:(.text+0x63f): undefined reference to `__udivdi3' >> ld: tnum.c:(.text+0x66c): undefined reference to `__udivdi3' ld: kernel/bpf/tnum.o: in function `tnum_sdiv': tnum.c:(.text+0xccd): undefined reference to `__divdi3' -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki