netdev - Re: [PATCH net-next 8/9] rxrpc: Reduce the number of PING ACKs sent

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Date:   Thu, 22 Sep 2016 09:25:19 +0800
From:   kbuild test robot <lkp@...el.com>
To:     David Howells <dhowells@...hat.com>
Cc:     kbuild-all@...org, netdev@...r.kernel.org, dhowells@...hat.com,
        linux-afs@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next 8/9] rxrpc: Reduce the number of PING ACKs sent

Hi David,

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

url:    https://github.com/0day-ci/linux/commits/David-Howells/rxrpc-Preparation-for-slow-start-algorithm/20160922-085242
config: i386-randconfig-x009-201638 (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

Note: the linux-review/David-Howells/rxrpc-Preparation-for-slow-start-algorithm/20160922-085242 HEAD f739ad653a9471b67eb8fc01185c01c2ca1dcb4b builds fine.
      It only hurts bisectibility.

All errors (new ones prefixed by >>):

   net/rxrpc/input.c: In function 'rxrpc_send_ping':
>> net/rxrpc/input.c:50:42: error: 'struct rxrpc_peer' has no member named 'rtt_last_req'; did you mean 'rtt_cache'?
         ktime_before(ktime_add_ms(call->peer->rtt_last_req, 1000), now))
                                             ^~

vim +50 net/rxrpc/input.c

    44				    int skew)
    45	{
    46		struct rxrpc_skb_priv *sp = rxrpc_skb(skb);
    47		ktime_t now = skb->tstamp;
    48	
    49		if (call->peer->rtt_usage < 3 ||
  > 50		    ktime_before(ktime_add_ms(call->peer->rtt_last_req, 1000), now))
    51			rxrpc_propose_ACK(call, RXRPC_ACK_PING, skew, sp->hdr.serial,
    52					  true, true);
    53	}

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