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

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Date:	Wed, 20 Jul 2016 04:05:24 +0000
From:	Dexuan Cui <decui@...rosoft.com>
To:	David Miller <davem@...emloft.net>
CC:	"lkp@...el.com" <lkp@...el.com>,
	"kbuild-all@...org" <kbuild-all@...org>,
	"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>,
	"vkuznets@...hat.com" <vkuznets@...hat.com>,
	"cavery@...hat.com" <cavery@...hat.com>,
	KY Srinivasan <kys@...rosoft.com>,
	"joe@...ches.com" <joe@...ches.com>,
	"rolf.neugebauer@...ker.com" <rolf.neugebauer@...ker.com>,
	"mkubecek@...e.cz" <mkubecek@...e.cz>,
	Haiyang Zhang <haiyangz@...rosoft.com>,
	"dave.scott@...ker.com" <dave.scott@...ker.com>
Subject: RE: [PATCH v17 net-next 1/1] hv_sock: introduce Hyper-V Sockets

> From: David Miller [mailto:davem@...emloft.net]
> >> From: kbuild test robot [mailto:lkp@...el.com]
> >> [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.

Sure. Will do.

Thanks,
-- Dexuan