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From: Ray Kinsella <mdr@ashroe.eu>
To: Thomas Monjalon <thomas@monjalon.net>, Gavin Hu <Gavin.Hu@arm.com>
Cc: David Marchand <david.marchand@redhat.com>,
	Kevin Traynor <ktraynor@redhat.com>,
	Bruce Richardson <bruce.richardson@intel.com>,
	Morten Brørup <mb@smartsharesystems.com>,
	Ferruh Yigit <ferruh.yigit@intel.com>,
	"dev@dpdk.org" <dev@dpdk.org>, nd <nd@arm.com>,
	"jerinj@marvell.com" <jerinj@marvell.com>,
	Honnappa Nagarahalli <Honnappa.Nagarahalli@arm.com>,
	Ruifeng Wang <Ruifeng.Wang@arm.com>,
	Phil Yang <Phil.Yang@arm.com>, Joyce Kong <Joyce.Kong@arm.com>,
	"stable@dpdk.org" <stable@dpdk.org>,
	Olivier MATZ <olivier.matz@6wind.com>,
	Konstantin Ananyev <konstantin.ananyev@intel.com>,
	Andrew Rybchenko <arybchenko@solarflare.com>
Subject: Re: [dpdk-stable] [dpdk-dev] [PATCH v2] mbuf: replace zero-length marker with unnamed union
Date: Thu, 9 Apr 2020 17:09:30 +0100
Message-ID: <808b34db-9723-b940-bdc0-af67c438559b@ashroe.eu> (raw)
In-Reply-To: <2539459.X9hSmTKtgW@thomas>



On 09/04/2020 11:49, Thomas Monjalon wrote:
> 09/04/2020 11:48, Gavin Hu:
>> From: David Marchand <david.marchand@redhat.com>
>>> On Wed, Apr 8, 2020 at 5:05 PM Gavin Hu <Gavin.Hu@arm.com> wrote:
>>>> From: Kevin Traynor <ktraynor@redhat.com>
>>>>> Hi Gavin, I lost track if v2 is still a candidate for merge. fwiw, it
>>>>> compiles without giving the zero-length-bounds warning on my system.
>>>>>
>>>>> Kevin.
>>>>
>>>> Yes,  this path alone is a candidate for merge.
>>>
>>> This patch is not mergeable, it would trigger failures in the ABI checks.
>>
>> Isn't it a false failure? If yes, is it ignorable?
>>
>>> You can see in patchwork that the robot reported a warning in Travis.
>>> http://mails.dpdk.org/archives/test-report/2020-March/119919.html
>>> https://travis-ci.com/github/ovsrobot/dpdk/jobs/295652710#L4476
>>>
>>>
>>> I opened a bz to libabigail.
>>> https://sourceware.org/bugzilla/show_bug.cgi?id=25661
>>>
>>>
>>> Either a different solution is found, or your patch will have to deal
>>> with this issue (libabigail fix won't be ready soon afaik) and waive
>>> this.
>>
>> Maybe we come back to 'disable the warning', before the libabigail fix ready?  or alternatively ignore this ABI false failure, if it is. 
>> I do not have ideas of what otherwise the options are. 
> 
> Gavin,
> I did not check this case.
> But in general, we do not skip checks, except some checkpatch ones.
> The policy with ABI checks is "NEVER SKIP".
> We prefer postponing patches, waiting for someone to fix tooling.

In this case Dave Marchand has more than adequately shown the issue is because of a libabigail failure.
and has raised an appropriate BZ in the right place, much kudos. 

My read of this, is that libabigail fix, will be complicated. 

> There is a lack of motivation currently for general concerns.
> We need to avoid being "write-only" contributors.
> So two things need to be done:
> 	1/ improve tooling where it needs
> 	2/ review patches from others
> I published a review list recently:
> 	http://mails.dpdk.org/archives/announce/2020-April/000315.html
 




 


 

  reply	other threads:[~2020-04-09 16:09 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-03 16:27 [dpdk-stable] [PATCH v1] " Gavin Hu
2020-03-04 12:32 ` [dpdk-stable] [dpdk-dev] " Kevin Traynor
2020-03-07 14:52   ` Gavin Hu
2020-03-07 15:56 ` [dpdk-stable] [PATCH v2] " Gavin Hu
2020-03-09  8:55   ` [dpdk-stable] [dpdk-dev] " Ferruh Yigit
2020-03-09  9:45     ` Gavin Hu
2020-03-09 11:29       ` Ferruh Yigit
2020-03-09 13:30         ` Morten Brørup
2020-03-09 14:16           ` Richardson, Bruce
2020-03-09 14:50             ` [dpdk-stable] [dpdk-dev] [PATCH v2] mbuf: replace zero-length markerwith " Morten Brørup
2020-03-11  7:50           ` [dpdk-stable] [dpdk-dev] [PATCH v2] mbuf: replace zero-length marker with " Gavin Hu
2020-03-11  9:04             ` Morten Brørup
2020-03-11 12:07               ` Bruce Richardson
2020-03-13  7:36                 ` Gavin Hu
2020-03-13  9:22                 ` Gavin Hu
2020-04-07 17:13                   ` Kevin Traynor
2020-04-08 15:04                     ` Gavin Hu
2020-04-08 15:22                       ` David Marchand
2020-04-09  9:48                         ` Gavin Hu
2020-04-09 10:49                           ` Thomas Monjalon
2020-04-09 16:09                             ` Ray Kinsella [this message]
2020-04-11  2:50                             ` Gavin Hu
2020-05-14 13:24                         ` Kevin Traynor
2020-03-09 15:47     ` Stephen Hemminger

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