linux-kernel - Re: [PATCH bpf-next v3 3/6] bpf: Add a bpf

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Message-ID: <202104130447.2WLAvV47-lkp@intel.com>
Date:   Tue, 13 Apr 2021 04:32:05 +0800
From:   kernel test robot <lkp@...el.com>
To:     Florent Revest <revest@...omium.org>, bpf@...r.kernel.org
Cc:     kbuild-all@...ts.01.org, ast@...nel.org, daniel@...earbox.net,
        andrii@...nel.org, yhs@...com, kpsingh@...nel.org,
        jackmanb@...omium.org, linux-kernel@...r.kernel.org,
        Florent Revest <revest@...omium.org>
Subject: Re: [PATCH bpf-next v3 3/6] bpf: Add a bpf_snprintf helper

Hi Florent,

I love your patch! Yet something to improve:

[auto build test ERROR on bpf-next/master]

url:    https://github.com/0day-ci/linux/commits/Florent-Revest/Add-a-snprintf-eBPF-helper/20210412-233921
base:   https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master
config: m68k-allmodconfig (attached as .config)
compiler: m68k-linux-gcc (GCC) 9.3.0
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://github.com/0day-ci/linux/commit/168301dda58989eca274d5f5c926675540010e13
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Florent-Revest/Add-a-snprintf-eBPF-helper/20210412-233921
        git checkout 168301dda58989eca274d5f5c926675540010e13
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=m68k 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

   m68k-linux-ld: kernel/bpf/verifier.o: in function `check_helper_call.isra.0':
>> verifier.c:(.text+0xf79e): undefined reference to `bpf_printf_prepare'
   m68k-linux-ld: kernel/bpf/helpers.o: in function `bpf_base_func_proto':
>> helpers.c:(.text+0xd82): undefined reference to `bpf_snprintf_proto'

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

Download attachment ".config.gz" of type "application/gzip" (59907 bytes)