netdev - Re: [PATCH net-next v2] net: ip6mr: add RTM

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Date:   Tue, 5 Jul 2022 11:38:43 +0800
From:   kernel test robot <lkp@...el.com>
To:     David Lamparter <equinox@...c24.net>, netdev@...r.kernel.org
Cc:     kbuild-all@...ts.01.org, David Ahern <dsahern@...nel.org>,
        Eric Dumazet <edumazet@...gle.com>,
        David Lamparter <equinox@...c24.net>
Subject: Re: [PATCH net-next v2] net: ip6mr: add RTM_GETROUTE netlink op

Hi David,

Thank you for the patch! Perhaps something to improve:

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

url:    https://github.com/intel-lab-lkp/linux/commits/David-Lamparter/net-ip6mr-add-RTM_GETROUTE-netlink-op/20220704-180235
base:   https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git d0bf1fe6454e976e39bc1524b9159fa2c0fcf321
config: x86_64-rhel-8.3-kselftests (https://download.01.org/0day-ci/archive/20220705/202207051158.Vo7Qj6VM-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-3) 11.3.0
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.4-39-gce1a6720-dirty
        # https://github.com/intel-lab-lkp/linux/commit/ab5f843c60bd5c7ef119d8be390e67f9c43d8d3b
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review David-Lamparter/net-ip6mr-add-RTM_GETROUTE-netlink-op/20220704-180235
        git checkout ab5f843c60bd5c7ef119d8be390e67f9c43d8d3b
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=x86_64 SHELL=/bin/bash net/ipv6/

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


sparse warnings: (new ones prefixed by >>)
>> net/ipv6/ip6mr.c:2515:25: sparse: sparse: symbol 'rtm_ipv6_mr_policy' was not declared. Should it be static?
   net/ipv6/ip6mr.c:407:13: sparse: sparse: context imbalance in 'ip6mr_vif_seq_start' - different lock contexts for basic block
   net/ipv6/ip6mr.c: note: in included file (through include/linux/rculist.h, include/linux/pid.h, include/linux/sched.h, ...):
   include/linux/rcupdate.h:726:9: sparse: sparse: context imbalance in 'ip6_mr_forward' - unexpected unlock
   net/ipv6/ip6mr.c: note: in included file (through include/linux/mroute6.h):
   include/linux/mroute_base.h:432:31: sparse: sparse: context imbalance in 'mr_mfc_seq_stop' - unexpected unlock

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp