netdev - Re: [PATCH net-next V3 3/3] net: add a sysctl to make auto flowlabel consistent

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Date:   Tue, 5 Dec 2017 10:04:20 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Shaohua Li <shli@...nel.org>
Cc:     kbuild-all@...org, netdev@...r.kernel.org, davem@...emloft.net,
        kafai@...com, eric.dumazet@...il.com, flo@...rcot.fr,
        xiyou.wangcong@...il.com, tom@...bertland.com,
        Shaohua Li <shli@...com>
Subject: Re: [PATCH net-next V3 3/3] net: add a sysctl to make auto flowlabel
 consistent

Hi Shaohua,

I love your patch! Yet something to improve:

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

url:    https://github.com/0day-ci/linux/commits/Shaohua-Li/net-fix-flowlabel-inconsistency-in-reset-packet/20171205-072626
config: x86_64-randconfig-x004-201749 (attached as .config)
compiler: gcc-7 (Debian 7.2.0-12) 7.2.1 20171025
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All errors (new ones prefixed by >>):

   In file included from include/net/cls_cgroup.h:19:0,
                    from net/socket.c:98:
   include/net/sock.h: In function 'sk_rethink_txhash':
>> include/net/sock.h:1753:29: error: 'struct net' has no member named 'ipv6'; did you mean 'ipv4'?
     if (sk->sk_txhash && !net->ipv6.sysctl.consistent_auto_flowlabel) {
                                ^~~~
                                ipv4

vim +1753 include/net/sock.h

  1748	
  1749	static inline void sk_rethink_txhash(struct sock *sk)
  1750	{
  1751		struct net *net = sock_net(sk);
  1752	
> 1753		if (sk->sk_txhash && !net->ipv6.sysctl.consistent_auto_flowlabel) {
  1754			u32 v = prandom_u32();
  1755			sk->sk_txhash = v ?: 1;
  1756		}
  1757	}
  1758	

---
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