From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by dpdk.space (Postfix) with ESMTP id 59725A0AC5 for ; Thu, 2 May 2019 16:04:35 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 4342E7D4A; Thu, 2 May 2019 16:04:33 +0200 (CEST) Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by dpdk.org (Postfix) with ESMTP id 3CFEA5F2C; Thu, 2 May 2019 16:04:31 +0200 (CEST) X-Amp-Result: UNSCANNABLE X-Amp-File-Uploaded: False Received: from orsmga006.jf.intel.com ([10.7.209.51]) by orsmga105.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 02 May 2019 07:04:30 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.60,421,1549958400"; d="scan'208";a="140679307" Received: from bricha3-mobl.ger.corp.intel.com ([10.237.221.48]) by orsmga006.jf.intel.com with SMTP; 02 May 2019 07:04:27 -0700 Received: by (sSMTP sendmail emulation); Thu, 02 May 2019 15:04:27 +0100 Date: Thu, 2 May 2019 15:04:26 +0100 From: Bruce Richardson To: David Marchand Cc: Thomas Monjalon , dev , dpdk stable Message-ID: <20190502140426.GA2007@bricha3-MOBL.ger.corp.intel.com> References: <20190501195014.2938-1-bruce.richardson@intel.com> <8175150.iIoqqa2Iee@xps> <20190502132433.GC1980@bricha3-MOBL.ger.corp.intel.com> <20190502134632.GE1980@bricha3-MOBL.ger.corp.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.11.4 (2019-03-13) Subject: Re: [dpdk-dev] [dpdk-stable] [PATCH 0/4] fix warnings with gcc 9 on Fedora 30 X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Message-ID: <20190502140426.EyfOP50Vl4z6oKxZ-Z5UBnMOtCCwy-201zFMpUgpyhw@z> On Thu, May 02, 2019 at 03:53:36PM +0200, David Marchand wrote: > On Thu, May 2, 2019 at 3:46 PM Bruce Richardson > <[1]bruce.richardson@intel.com> wrote: > > On Thu, May 02, 2019 at 03:32:20PM +0200, David Marchand wrote: > > On Thu, May 2, 2019 at 3:24 PM Bruce Richardson > > <[1][2]bruce.richardson@intel.com> wrote: > > > > On Thu, May 02, 2019 at 02:32:41PM +0200, David Marchand > wrote: > > > On Thu, May 2, 2019 at 2:19 PM Thomas Monjalon > > <[1][2][3]thomas@monjalon.net> > > > wrote: > > > > > > 01/05/2019 21:50, Bruce Richardson: > > > > This set of changes fixes warnings seen when > compiling DPDK > > on > > > Fedora 30. > > > > In most cases these warnings appear to be false > positives, > > which > > > means we > > > > have the option to just disable the warning. Because > the > > changes > > > required > > > > to the code to silence the warnings are fairly small > I've > > chosen > > > in all cases > > > > to change the code rather than disable the warnings, > but > > I'm open > > > to doing > > > > the opposite if it's felt it's a better solution. > [One > > thing I > > > didn't like > > > > about disabling the warnings is that the disabling > flags > > are not > > > supported > > > > by clang, so adding them involves compiler checks > :-(] > > > > > > > > NOTE: this set does not cover all warnings with > GCC9, but > > it does > > > cover > > > > those seen when building with meson. There is still > one > > warning > > > disable > > > > flag needed when building with make, which will need > a > > follow-on > > > set to > > > > fix. > > > > > > > > Bruce Richardson (4): > > > > net/ixgbe: fix warning with GCC 9 on Fedora 30 > > > > bus/fslmc: fix printf of null pointer > > > > raw/skeleton_rawdev: fix warnings with GCC 9 on > Fedora 30 > > > > raw/dpaa2_cmdif: fix warnings with GCC 9 on Fedora > 30 > > > Cc: [2][3][4]stable@dpdk.org > > > Applied, thanks > > > > > > I had a comment on patch 2, and the bigger problem is > > > -Waddress-of-packed-member. > > > The quicker solution for now is to downgrade it to > warning only > > so that > > > we can fix the parts later rather than globally disable > it. > > > -- > > Well, it is already a warning, it's just that with make we > build by > > default > > with -Werror when building from git. > > > > Err, why don't we have -Werror for meson ? > > > Because it's generally not a good idea to use -Werror by default. > However, > the test-meson-build script (which we should all be using for test > compilation before upstreaming) sets it for all builds. > > Yes ok, so that old releases still build on newer toolchains. > As for the test-meson-builds.sh and test-build.sh scripts, they are > still widely unknown except by maintainers. > But at least, the ci build script would catch the errors, since it > configures with "meson build --werror -Dexamples=all $OPTS" > -- Yep, that's the idea. So long as it's easy enough for maintainers and CI to use werror, we should be covered.