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From: "Van Haaren, Harry" <harry.van.haaren@intel.com>
To: David Marchand <david.marchand@redhat.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>,
	"stable@dpdk.org" <stable@dpdk.org>,
	"Ray Kinsella" <mdr@ashroe.eu>,
	Neil Horman <nhorman@tuxdriver.com>
Subject: Re: [dpdk-dev] [PATCH] service: clean references to removed symbol
Date: Thu, 8 Apr 2021 13:06:44 +0000
Message-ID: <BYAPR11MB3143B5EF130FFE371BCD61BBD7749@BYAPR11MB3143.namprd11.prod.outlook.com> (raw)
In-Reply-To: <CAJFAV8x+NUJX7r1j1z=zyB4Wb6EMXJOE+-SKXfkVhZNPmu6zOA@mail.gmail.com>

> -----Original Message-----
> From: David Marchand <david.marchand@redhat.com>
> Sent: Thursday, April 8, 2021 1:58 PM
> To: Van Haaren, Harry <harry.van.haaren@intel.com>
> Cc: dev@dpdk.org; stable@dpdk.org; Ray Kinsella <mdr@ashroe.eu>; Neil Horman
> <nhorman@tuxdriver.com>; Pavan Nikhilesh <pbhagavatula@caviumnetworks.com>
> Subject: Re: [PATCH] service: clean references to removed symbol
> 
> On Thu, Apr 8, 2021 at 2:54 PM Van Haaren, Harry
> <harry.van.haaren@intel.com> wrote:
> >
> > > -----Original Message-----
> > > From: David Marchand <david.marchand@redhat.com>
> > > Sent: Wednesday, April 7, 2021 10:07 AM
> > > To: dev@dpdk.org
> > > Cc: stable@dpdk.org; Van Haaren, Harry <harry.van.haaren@intel.com>; Ray
> > > Kinsella <mdr@ashroe.eu>; Neil Horman <nhorman@tuxdriver.com>; Pavan
> > > Nikhilesh <pbhagavatula@caviumnetworks.com>
> > > Subject: [PATCH] service: clean references to removed symbol
> > >
> > > rte_service_get_id() was removed in v17.11 but the API description
> > > still referenced it and a version node was still present in EAL map.
> > >
> > > Fixes: 8edc9aaaf217 ("service: use id in get by name function")
> > > Cc: stable@dpdk.org
> > >
> > > Signed-off-by: David Marchand <david.marchand@redhat.com>
> >
> > For rte_service.h doc changes I'm all fine.
> >
> > For ABI consistency, this removes a function from the DPDK_21 version map that
> didn't exist in
> > the shared object itself. I'm not sure if that's an ABI break or not... I see ABI
> experts on CC,
> > and will let them comment on that topic.
> 
> The symbol is not in the API anymore.
> Applications can't have a reference to this symbol without a definition.

Agreed, however I'm not familiar enough with linking/ABI stability to
know if removing a symbol (even when not available in the API) could
affect the resulting shared object's ABI.

If somebody says there's no risk in ABI break, go ahead and merge. -Harry

  reply	other threads:[~2021-04-08 13:08 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-07  9:06 David Marchand
2021-04-08 12:54 ` Van Haaren, Harry
2021-04-08 12:58   ` David Marchand
2021-04-08 13:06     ` Van Haaren, Harry [this message]
2021-04-08 14:04       ` David Marchand
2021-04-08 14:54         ` Thomas Monjalon
2021-04-08 16:09 ` [dpdk-dev] [dpdk-stable] " David Marchand

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