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From: kbuild test robot <lkp@intel.com>
To: linux-sctp@vger.kernel.org
Subject: Re: [PATCH net-next 20/27] sctp: add rfc6525 section 5.2.2
Date: Sun, 01 Jan 2017 12:02:07 +0000	[thread overview]
Message-ID: <201701011927.G3TLoJx9%fengguang.wu@intel.com> (raw)
In-Reply-To: <b5eb3a199dded2efe517b19b5cac6ae498a6c0c8.1483269426.git.lucien.xin@gmail.com>

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Hi Xin,

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

url:    https://github.com/0day-ci/linux/commits/Xin-Long/sctp-implement-rfc6525-sctp-stream-reconf/20170101-192844
config: x86_64-randconfig-x015-201701 (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=x86_64 

Note: it may well be a FALSE warning. FWIW you are at least aware of it now.
http://gcc.gnu.org/wiki/Better_Uninitialized_Warnings

All warnings (new ones prefixed by >>):

   net/sctp/stream.c: In function 'sctp_process_strreset_outreq':
>> net/sctp/stream.c:140:9: warning: 'str_p' may be used uninitialized in this function [-Wmaybe-uninitialized]
     *evp = sctp_ulpevent_make_stream_reset_event(asoc,
            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      flags | SCTP_STREAM_RESET_OUTGOING_SSN, nums, str_p,
      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      GFP_ATOMIC);
      ~~~~~~~~~~~

vim +/str_p +140 net/sctp/stream.c

   124				if (str_p[i] >= asoc->streamincnt) {
   125					result = SCTP_STRRESET_ERR_WRONG_SSN;
   126					goto out;
   127				}
   128			}
   129	
   130			str_p = outreq->list_of_streams;
   131			for (i = 0; i < nums; i++, str_p++)
   132				asoc->streamin[*str_p].ssn = 0;
   133		} else {
   134			for (i = 0; i < asoc->streamincnt; i++)
   135				asoc->streamin[i].ssn = 0;
   136		}
   137	
   138		result = SCTP_STRRESET_PERFORMED;
   139	
 > 140		*evp = sctp_ulpevent_make_stream_reset_event(asoc,
   141			flags | SCTP_STREAM_RESET_OUTGOING_SSN, nums, str_p,
   142			GFP_ATOMIC);
   143	
   144	out:
   145		return sctp_make_strreset_resp(asoc, result, request_seq);
   146	}

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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  parent reply	other threads:[~2017-01-01 12:02 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-01-01 11:20 [PATCH net-next 00/27] sctp: implement rfc6525 sctp stream reconf Xin Long
2017-01-01 11:20 ` [PATCH net-next 01/27] sctp: add stream arrays in asoc Xin Long
2017-01-01 11:20   ` [PATCH net-next 02/27] sctp: replace ssnmap with asoc stream arrays Xin Long
2017-01-01 11:20     ` [PATCH net-next 03/27] sctp: remove asoc ssnmap and ssnmap.c Xin Long
2017-01-01 11:20       ` [PATCH net-next 04/27] sctp: add rfc6525 section 3.1 Xin Long
2017-01-01 11:20         ` [PATCH net-next 05/27] sctp: add rfc6525 section 4.1-4.2 Xin Long
2017-01-01 11:20           ` [PATCH net-next 06/27] sctp: add rfc6525 section 4.3 Xin Long
2017-01-01 11:20             ` [PATCH net-next 07/27] sctp: add rfc6525 section 4.4 Xin Long
2017-01-01 11:20               ` [PATCH net-next 08/27] sctp: add rfc6525 section 4.5-4.6 Xin Long
2017-01-01 11:20                 ` [PATCH net-next 09/27] sctp: add stream reconf timer Xin Long
2017-01-01 11:20                   ` [PATCH net-next 10/27] sctp: add stream reconf primitive Xin Long
2017-01-01 11:20                     ` [PATCH net-next 11/27] sctp: add reconf_enable in asoc ep and netns Xin Long
2017-01-01 11:20                       ` [PATCH net-next 12/27] sctp: add get and set sockopt for reconf_enable Xin Long
2017-01-01 11:20                         ` [PATCH net-next 13/27] sctp: add rfc6525 section 6.3.1 Xin Long
2017-01-01 11:20                           ` [PATCH net-next 14/27] sctp: add rfc6525 section 5.1.2-5.1.3 and 6.3.2 Xin Long
2017-01-01 11:20                             ` [PATCH net-next 15/27] sctp: add rfc6525 section 5.1.4 and 6.3.3 Xin Long
2017-01-01 11:20                               ` [PATCH net-next 16/27] sctp: add rfc6525 section 5.1.5-5.1.6 and 6.3.4 Xin Long
2017-01-01 11:20                                 ` [PATCH net-next 17/27] sctp: add rfc6525 section 6.1.1 Xin Long
2017-01-01 11:20                                   ` [PATCH net-next 18/27] sctp: add rfc6525 section 6.1.2 Xin Long
2017-01-01 11:20                                     ` [PATCH net-next 19/27] sctp: add rfc6525 section 6.1.3 Xin Long
2017-01-01 11:20                                       ` [PATCH net-next 20/27] sctp: add rfc6525 section 5.2.2 Xin Long
2017-01-01 11:20                                         ` [PATCH net-next 21/27] sctp: add rfc6525 section 5.2.3 Xin Long
2017-01-01 11:20                                           ` [PATCH net-next 22/27] sctp: add rfc6525 section 5.2.4 Xin Long
2017-01-01 11:20                                             ` [PATCH net-next 23/27] sctp: add rfc6525 section 5.2.5 Xin Long
2017-01-01 11:20                                               ` [PATCH net-next 24/27] sctp: add rfc6525 section 5.2.6 Xin Long
2017-01-01 11:20                                                 ` [PATCH net-next 25/27] sctp: add rfc6525 section 5.2.7 Xin Long
2017-01-01 11:20                                                   ` [PATCH net-next 26/27] sctp: add sctp reconf chunk process Xin Long
2017-01-01 11:20                                                     ` [PATCH net-next 27/27] sctp: add reconf chunk event Xin Long
2017-01-01 12:14                                             ` [PATCH net-next 22/27] sctp: add rfc6525 section 5.2.4 kbuild test robot
2017-01-01 13:26                                               ` Xin Long
2017-01-01 16:32                                                 ` David Miller
2017-01-02 13:43                                                   ` Xin Long
2017-01-01 12:02                                         ` kbuild test robot [this message]
2017-01-01 13:23                                           ` [PATCH net-next 20/27] sctp: add rfc6525 section 5.2.2 Xin Long
2017-01-01 11:32 ` [PATCH net-next 00/27] sctp: implement rfc6525 sctp stream reconf Xin Long
2017-01-01 16:30 ` David Miller
2017-01-02 13:42   ` Xin Long

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