linux-kernel - Re: [PATCH v17 net-next 1/1] hv_sock: introduce Hyper-V Sockets

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Message-ID: <201607200149.0W6994tY%fengguang.wu@intel.com>
Date:	Wed, 20 Jul 2016 01:10:01 +0800
From:	kbuild test robot <lkp@...el.com>
To:	Dexuan Cui <decui@...rosoft.com>
Cc:	kbuild-all@...org, "davem@...emloft.net" <davem@...emloft.net>,
	"gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"devel@...uxdriverproject.org" <devel@...uxdriverproject.org>,
	"olaf@...fle.de" <olaf@...fle.de>,
	"apw@...onical.com" <apw@...onical.com>,
	"jasowang@...hat.com" <jasowang@...hat.com>,
	Vitaly Kuznetsov <vkuznets@...hat.com>,
	Cathy Avery <cavery@...hat.com>,
	KY Srinivasan <kys@...rosoft.com>,
	"joe@...ches.com" <joe@...ches.com>,
	Rolf Neugebauer <rolf.neugebauer@...ker.com>,
	Michal Kubecek <mkubecek@...e.cz>,
	Haiyang Zhang <haiyangz@...rosoft.com>,
	Dave Scott <dave.scott@...ker.com>
Subject: Re: [PATCH v17 net-next 1/1] hv_sock: introduce Hyper-V Sockets

Hi,

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

url:    https://github.com/0day-ci/linux/commits/Dexuan-Cui/introduce-Hyper-V-VM-Sockets-hv_sock/20160715-223433
config: x86_64-randconfig-a0-07191719 (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 warnings (new ones prefixed by >>):

   net/hv_sock/af_hvsock.c: In function 'hvsock_open_connection':
   net/hv_sock/af_hvsock.c:693: warning: 'hvsk' may be used uninitialized in this function
   net/hv_sock/af_hvsock.c:693: warning: 'new_hvsk' may be used uninitialized in this function
   net/hv_sock/af_hvsock.c:697: warning: 'new_sk' may be used uninitialized in this function
   net/hv_sock/af_hvsock.c: In function 'hvsock_sendmsg_wait':
   net/hv_sock/af_hvsock.c:1053: warning: 'ret' may be used uninitialized in this function
>> net/hv_sock/af_hvsock.o: warning: objtool: hvsock_on_channel_cb()+0x1d: function has unreachable instruction

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

Download attachment ".config.gz" of type "application/octet-stream" (28039 bytes)