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Date: Mon, 13 Nov 2017 01:15:42 +0800
From: kbuild test robot <lkp@intel.com>
To: Yafang Shao <laoar.shao@gmail.com>
Cc: kbuild-all@01.org, davem@davemloft.net, kuznet@ms2.inr.ac.ru,
        yoshfuji@linux-ipv6.org, rostedt@goodmis.org, mingo@redhat.com,
        netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
        Yafang Shao <laoar.shao@gmail.com>
Subject: Re: [PATCH net-next 1/2] net/tcp: track all TCP/IP state transition
 in tcp_set_state
Message-ID: <201711130018.7unIA9zv%fengguang.wu@intel.com>
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Hi Yafang,

Thank you for the patch! Perhaps something to improve:

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

url:    https://github.com/0day-ci/linux/commits/Yafang-Shao/net-tcp-track-all-TCP-IP-state-transition-in-tcp_set_state/20171112-203643
reproduce:
        # apt-get install sparse
        make ARCH=x86_64 allmodconfig
        make C=1 CF=-D__CHECK_ENDIAN__


sparse warnings: (new ones prefixed by >>)


vim +/return +428 net/netfilter/ipvs/ip_vs_proto_tcp.c

^1da177e net/ipv4/ipvs/ip_vs_proto_tcp.c Linus Torvalds 2005-04-16  423  
^1da177e net/ipv4/ipvs/ip_vs_proto_tcp.c Linus Torvalds 2005-04-16 @424  static const char * tcp_state_name(int state)
^1da177e net/ipv4/ipvs/ip_vs_proto_tcp.c Linus Torvalds 2005-04-16  425  {
^1da177e net/ipv4/ipvs/ip_vs_proto_tcp.c Linus Torvalds 2005-04-16  426  	if (state >= IP_VS_TCP_S_LAST)
^1da177e net/ipv4/ipvs/ip_vs_proto_tcp.c Linus Torvalds 2005-04-16  427  		return "ERR!";
^1da177e net/ipv4/ipvs/ip_vs_proto_tcp.c Linus Torvalds 2005-04-16 @428  	return tcp_state_name_table[state] ? tcp_state_name_table[state] : "?";
^1da177e net/ipv4/ipvs/ip_vs_proto_tcp.c Linus Torvalds 2005-04-16  429  }
^1da177e net/ipv4/ipvs/ip_vs_proto_tcp.c Linus Torvalds 2005-04-16  430  

:::::: The code at line 428 was first introduced by commit
:::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2

:::::: TO: Linus Torvalds <torvalds@ppc970.osdl.org>
:::::: CC: Linus Torvalds <torvalds@ppc970.osdl.org>

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