linux-kernel - Re: [PATCH net-next 1/2] net/tcp: track all TCP/IP state transition in tcp_set

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Date:   Sun, 12 Nov 2017 23:10:08 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Yafang Shao <laoar.shao@...il.com>
Cc:     kbuild-all@...org, davem@...emloft.net, kuznet@....inr.ac.ru,
        yoshfuji@...ux-ipv6.org, rostedt@...dmis.org, mingo@...hat.com,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        Yafang Shao <laoar.shao@...il.com>
Subject: Re: [PATCH net-next 1/2] net/tcp: track all TCP/IP state transition
 in tcp_set_state

Hi Yafang,

Thank you for the patch! Yet something to improve:

[auto build test ERROR 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
config: mips-malta_kvm_defconfig (attached as .config)
compiler: mipsel-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=mips 

All errors (new ones prefixed by >>):

   In file included from include/net/tcp.h:49:0,
                    from net/netfilter/ipvs/ip_vs_proto_tcp.c:27:
   include/trace/events/tcp.h:12:31: error: expected identifier or '(' before '{' token
    #define tcp_state_name(state) { state, #state }
                                  ^
   net/netfilter/ipvs/ip_vs_proto_tcp.c:424:21: note: in expansion of macro 'tcp_state_name'
    static const char * tcp_state_name(int state)
                        ^~~~~~~~~~~~~~
   net/netfilter/ipvs/ip_vs_proto_tcp.c:425:1: error: expected identifier or '(' before '{' token
    {
    ^
>> net/netfilter/ipvs/ip_vs_proto_tcp.c:737:17: error: 'tcp_state_name' undeclared here (not in a function); did you mean 'tcp_state_idx'?
     .state_name =  tcp_state_name,
                    ^~~~~~~~~~~~~~
                    tcp_state_idx

vim +737 net/netfilter/ipvs/ip_vs_proto_tcp.c

^1da177e4 net/ipv4/ipvs/ip_vs_proto_tcp.c      Linus Torvalds   2005-04-16  718  
^1da177e4 net/ipv4/ipvs/ip_vs_proto_tcp.c      Linus Torvalds   2005-04-16  719  
^1da177e4 net/ipv4/ipvs/ip_vs_proto_tcp.c      Linus Torvalds   2005-04-16  720  struct ip_vs_protocol ip_vs_protocol_tcp = {
^1da177e4 net/ipv4/ipvs/ip_vs_proto_tcp.c      Linus Torvalds   2005-04-16  721  	.name =			"TCP",
^1da177e4 net/ipv4/ipvs/ip_vs_proto_tcp.c      Linus Torvalds   2005-04-16  722  	.protocol =		IPPROTO_TCP,
2ad17defd net/ipv4/ipvs/ip_vs_proto_tcp.c      Julian Anastasov 2008-04-29  723  	.num_states =		IP_VS_TCP_S_LAST,
^1da177e4 net/ipv4/ipvs/ip_vs_proto_tcp.c      Linus Torvalds   2005-04-16  724  	.dont_defrag =		0,
4a85b96c0 net/netfilter/ipvs/ip_vs_proto_tcp.c Hans Schillstrom 2011-01-03  725  	.init =			NULL,
4a85b96c0 net/netfilter/ipvs/ip_vs_proto_tcp.c Hans Schillstrom 2011-01-03  726  	.exit =			NULL,
4a85b96c0 net/netfilter/ipvs/ip_vs_proto_tcp.c Hans Schillstrom 2011-01-03  727  	.init_netns =		__ip_vs_tcp_init,
4a85b96c0 net/netfilter/ipvs/ip_vs_proto_tcp.c Hans Schillstrom 2011-01-03  728  	.exit_netns =		__ip_vs_tcp_exit,
^1da177e4 net/ipv4/ipvs/ip_vs_proto_tcp.c      Linus Torvalds   2005-04-16  729  	.register_app =		tcp_register_app,
^1da177e4 net/ipv4/ipvs/ip_vs_proto_tcp.c      Linus Torvalds   2005-04-16  730  	.unregister_app =	tcp_unregister_app,
^1da177e4 net/ipv4/ipvs/ip_vs_proto_tcp.c      Linus Torvalds   2005-04-16  731  	.conn_schedule =	tcp_conn_schedule,
5c0d2374a net/netfilter/ipvs/ip_vs_proto_tcp.c Simon Horman     2010-08-02  732  	.conn_in_get =		ip_vs_conn_in_get_proto,
5c0d2374a net/netfilter/ipvs/ip_vs_proto_tcp.c Simon Horman     2010-08-02  733  	.conn_out_get =		ip_vs_conn_out_get_proto,
^1da177e4 net/ipv4/ipvs/ip_vs_proto_tcp.c      Linus Torvalds   2005-04-16  734  	.snat_handler =		tcp_snat_handler,
^1da177e4 net/ipv4/ipvs/ip_vs_proto_tcp.c      Linus Torvalds   2005-04-16  735  	.dnat_handler =		tcp_dnat_handler,
^1da177e4 net/ipv4/ipvs/ip_vs_proto_tcp.c      Linus Torvalds   2005-04-16  736  	.csum_check =		tcp_csum_check,
^1da177e4 net/ipv4/ipvs/ip_vs_proto_tcp.c      Linus Torvalds   2005-04-16 @737  	.state_name =		tcp_state_name,

:::::: The code at line 737 was first introduced by commit
:::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2

:::::: TO: Linus Torvalds <torvalds@...970.osdl.org>
:::::: CC: Linus Torvalds <torvalds@...970.osdl.org>

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