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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.
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