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

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Date:   Tue, 25 May 2021 22:47:35 +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, 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: i386-randconfig-r005-20210525 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        # 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
        make W=1 ARCH=i386 

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: In function 'napi_skb_free_stolen_head':
>> net/core/skbuff.c:942:2: error: implicit declaration of function 'nf_conntrack_put' [-Werror=implicit-function-declaration]
     942 |  nf_conntrack_put(skb_nfct(skb));
         |  ^~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors


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" (32848 bytes)