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

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Message-Id: <20160719.195253.2126109938824378508.davem@davemloft.net>
Date:	Tue, 19 Jul 2016 19:52:53 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	decui@...rosoft.com
Cc:	lkp@...el.com, kbuild-all@...org, gregkh@...uxfoundation.org,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	devel@...uxdriverproject.org, olaf@...fle.de, apw@...onical.com,
	jasowang@...hat.com, vkuznets@...hat.com, cavery@...hat.com,
	kys@...rosoft.com, joe@...ches.com, rolf.neugebauer@...ker.com,
	mkubecek@...e.cz, haiyangz@...rosoft.com, dave.scott@...ker.com
Subject: Re: [PATCH v17 net-next 1/1] hv_sock: introduce Hyper-V Sockets

From: Dexuan Cui <decui@...rosoft.com>
Date: Wed, 20 Jul 2016 01:48:18 +0000

>> From: kbuild test robot [mailto:lkp@...el.com]
>> Sent: Wednesday, July 20, 2016 1:10
>> 
>> 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
> 
> These warnings are all false alarms.

But you still have to quiet them.