netdev - Re: [PATCH net] skbuff: Release nfct refcount on napi stolen or re-used skbs

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Date:   Tue, 25 May 2021 22:50:16 +0800
From:   kernel test robot <lkp@...el.com>
To:     Paul Blakey <paulb@...dia.com>, netdev@...r.kernel.org,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>
Cc:     kbuild-all@...ts.01.org, clang-built-linux@...glegroups.com,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        John Fastabend <john.fastabend@...il.com>,
        Saeed Mahameed <saeedm@...dia.com>,
        Oz Shlomo <ozsh@...dia.com>, Roi Dayan <roid@...dia.com>
Subject: Re: [PATCH net] skbuff: Release nfct refcount on napi stolen or
 re-used skbs

Hi Paul,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on net/master]

url:    https://github.com/0day-ci/linux/commits/Paul-Blakey/skbuff-Release-nfct-refcount-on-napi-stolen-or-re-used-skbs/20210525-171507
base:   https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git 8c42a49738f16af0061f9ae5c2f5a955f268d9e3
config: x86_64-randconfig-r032-20210525 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 99155e913e9bad5f7f8a247f8bb3a3ff3da74af1)
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
        # install x86_64 cross compiling tool for clang build
        # apt-get install binutils-x86-64-linux-gnu
        # https://github.com/0day-ci/linux/commit/d4340b4d15d7b5f156b533d1ab0b3ae75ed479d3
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Paul-Blakey/skbuff-Release-nfct-refcount-on-napi-stolen-or-re-used-skbs/20210525-171507
        git checkout d4340b4d15d7b5f156b533d1ab0b3ae75ed479d3
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

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 >>):

>> net/core/skbuff.c:942:2: error: implicit declaration of function 'nf_conntrack_put' [-Werror,-Wimplicit-function-declaration]
           nf_conntrack_put(skb_nfct(skb));
           ^
   1 error generated.


vim +/nf_conntrack_put +942 net/core/skbuff.c

   939	
   940	void napi_skb_free_stolen_head(struct sk_buff *skb)
   941	{
 > 942		nf_conntrack_put(skb_nfct(skb));
   943		skb_dst_drop(skb);
   944		skb_ext_put(skb);
   945		napi_skb_cache_put(skb);
   946	}
   947	

---
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" (34135 bytes)