netdev - Re: [PATCH bpf-next v1 10/19] bpf: add netlink and ipv6

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Date:   Wed, 29 Apr 2020 03:49:55 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Yonghong Song <yhs@...com>, Andrii Nakryiko <andriin@...com>,
        bpf@...r.kernel.org, Martin KaFai Lau <kafai@...com>,
        netdev@...r.kernel.org
Cc:     kbuild-all@...ts.01.org, Alexei Starovoitov <ast@...com>,
        Daniel Borkmann <daniel@...earbox.net>, kernel-team@...com
Subject: Re: [PATCH bpf-next v1 10/19] bpf: add netlink and ipv6_route targets

Hi Yonghong,

I love your patch! Perhaps something to improve:

[auto build test WARNING on bpf-next/master]
[also build test WARNING on bpf/master net/master vhost/linux-next net-next/master linus/master v5.7-rc3 next-20200428]
[cannot apply to ipvs/master]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url:    https://github.com/0day-ci/linux/commits/Yonghong-Song/bpf-implement-bpf-iterator-for-kernel-data/20200428-115101
base:   https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.1-191-gc51a0382-dirty
        make ARCH=x86_64 allmodconfig
        make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'

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


sparse warnings: (new ones prefixed by >>)

>> net/netlink/af_netlink.c:2643:12: sparse: sparse: symbol '__bpf_iter__netlink' was not declared. Should it be static?
   net/netlink/af_netlink.c:2534:13: sparse: sparse: context imbalance in 'netlink_walk_start' - wrong count at exit
   net/netlink/af_netlink.c:2540:13: sparse: sparse: context imbalance in 'netlink_walk_stop' - unexpected unlock
   net/netlink/af_netlink.c:2576:13: sparse: sparse: context imbalance in 'netlink_seq_start' - wrong count at exit

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