netdev - Re: [PATCH v2 net-next 07/16] tcp: track data delivery rate for a TCP connection

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Date:   Sun, 18 Sep 2016 03:04:44 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Neal Cardwell <ncardwell@...gle.com>
Cc:     kbuild-all@...org, David Miller <davem@...emloft.net>,
        netdev@...r.kernel.org, Yuchung Cheng <ycheng@...gle.com>,
        Van Jacobson <vanj@...gle.com>,
        Neal Cardwell <ncardwell@...gle.com>,
        Nandita Dukkipati <nanditad@...gle.com>,
        Eric Dumazet <edumazet@...gle.com>,
        Soheil Hassas Yeganeh <soheil@...gle.com>
Subject: Re: [PATCH v2 net-next 07/16] tcp: track data delivery rate for a
 TCP connection

Hi Yuchung,

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

url:    https://github.com/0day-ci/linux/commits/Neal-Cardwell/tcp-BBR-congestion-control-algorithm/20160918-014058
config: x86_64-randconfig-s2-09180225 (attached as .config)
compiler: gcc-4.4 (Debian 4.4.7-8) 4.4.7
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All error/warnings (new ones prefixed by >>):

   net/ipv4/tcp_input.c: In function 'tcp_ack':
>> net/ipv4/tcp_input.c:3559: error: unknown field 'v64' specified in initializer
>> net/ipv4/tcp_input.c:3559: warning: missing braces around initializer
   net/ipv4/tcp_input.c:3559: warning: (near initialization for 'rs.prior_mstamp.<anonymous>')

vim +/v64 +3559 net/ipv4/tcp_input.c

  3553	/* This routine deals with incoming acks, but not outgoing ones. */
  3554	static int tcp_ack(struct sock *sk, const struct sk_buff *skb, int flag)
  3555	{
  3556		struct inet_connection_sock *icsk = inet_csk(sk);
  3557		struct tcp_sock *tp = tcp_sk(sk);
  3558		struct tcp_sacktag_state sack_state;
> 3559		struct rate_sample rs = { .prior_mstamp.v64 = 0, .prior_delivered = 0 };
  3560		u32 prior_snd_una = tp->snd_una;
  3561		u32 ack_seq = TCP_SKB_CB(skb)->seq;
  3562		u32 ack = TCP_SKB_CB(skb)->ack_seq;

---
0-DAY kernel test infrastructure                Open Source Technology Center
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Download attachment ".config.gz" of type "application/gzip" (30692 bytes)