linux-kernel - Re: [PATCH bpf-next 2/5] bpf: Implement get_current_task_btf and RET_PTR_TO_BTF

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Date:   Sun, 1 Nov 2020 02:45:02 +0800
From:   kernel test robot <lkp@...el.com>
To:     KP Singh <kpsingh@...omium.org>, linux-kernel@...r.kernel.org,
        bpf@...r.kernel.org
Cc:     kbuild-all@...ts.01.org, Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Martin KaFai Lau <kafai@...com>,
        Paul Turner <pjt@...gle.com>, Jann Horn <jannh@...gle.com>,
        Hao Luo <haoluo@...gle.com>
Subject: Re: [PATCH bpf-next 2/5] bpf: Implement get_current_task_btf and
 RET_PTR_TO_BTF_ID

Hi KP,

I love your patch! Perhaps something to improve:

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

url:    https://github.com/0day-ci/linux/commits/KP-Singh/Implement-task_local_storage/20201028-010549
base:   https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master
config: i386-randconfig-s002-20201031 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.3-68-g49c98aa3-dirty
        # https://github.com/0day-ci/linux/commit/238fab90058acf3437ecf912b49b4fc11249fdef
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review KP-Singh/Implement-task_local_storage/20201028-010549
        git checkout 238fab90058acf3437ecf912b49b4fc11249fdef
        # save the attached .config to linux build tree
        make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=i386 

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


"sparse warnings: (new ones prefixed by >>)"
>> kernel/trace/bpf_trace.c:1032:29: sparse: sparse: symbol 'bpf_get_current_task_btf_proto' was not declared. Should it be static?

Please review and possibly fold the followup patch.

---
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" (33311 bytes)