From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752597AbcGDFTv (ORCPT ); Mon, 4 Jul 2016 01:19:51 -0400 Received: from mx1.redhat.com ([209.132.183.28]:39734 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751246AbcGDFTn (ORCPT ); Mon, 4 Jul 2016 01:19:43 -0400 Subject: Re: linux-next: build warning after merge of the net-next tree To: Stephen Rothwell , David Miller , netdev@vger.kernel.org References: <20160704131552.22b44d58@canb.auug.org.au> Cc: linux-next@vger.kernel.org, linux-kernel@vger.kernel.org From: Jason Wang Message-ID: <5779F1E9.9070505@redhat.com> Date: Mon, 4 Jul 2016 13:19:37 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.8.0 MIME-Version: 1.0 In-Reply-To: <20160704131552.22b44d58@canb.auug.org.au> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.30]); Mon, 04 Jul 2016 05:19:43 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2016年07月04日 11:15, Stephen Rothwell wrote: > Hi all, > > After merging the net-next tree, today's linux-next build (powerpc > ppc64_defconfig) produced this warning: > > drivers/net/tun.c: In function 'tun_do_read.part.5': > /home/sfr/next/next/drivers/net/tun.c:1491:6: warning: 'err' may be used uninitialized in this function [-Wmaybe-uninitialized] > int err; > ^ > > Introduced by commit > > 1576d9860599 ("tun: switch to use skb array for tx") > > I can't easily see if this is a false positive. > Thanks for the reporting, will post a fix.