DPDK patches and discussions
 help / color / mirror / Atom feed
From: David Marchand <david.marchand@redhat.com>
To: Dodji Seketeli <dodji@redhat.com>
Cc: Phil Yang <Phil.Yang@arm.com>,
	Olivier Matz <olivier.matz@6wind.com>,
	 Ray Kinsella <mdr@ashroe.eu>, dev <dev@dpdk.org>,
	 Stephen Hemminger <stephen@networkplumber.org>,
	David Christensen <drc@linux.vnet.ibm.com>,
	 Honnappa Nagarahalli <Honnappa.Nagarahalli@arm.com>,
	Ruifeng Wang <Ruifeng.Wang@arm.com>, nd <nd@arm.com>,
	 Aaron Conole <aconole@redhat.com>
Subject: Re: [dpdk-dev] [PATCH v4 1/2] mbuf: use C11 atomic built-ins for refcnt operations
Date: Thu, 16 Jul 2020 21:11:59 +0200
Message-ID: <CAJFAV8w_X1DEf_QE5pm6WP7m9BZiCDH36b9C3x0deGy=6fDU9A@mail.gmail.com> (raw)
In-Reply-To: <87h7u7k344.fsf@redhat.com>

On Thu, Jul 16, 2020 at 3:21 PM Dodji Seketeli <dodji@redhat.com> wrote:
> Just for the sake of precision, I'd like to say that in the coming 1.8
> version of libabigail, this change won't be reported by the tooling as a
> problem anymore.  This is thanks to David filing the feature request
> https://sourceware.org/bugzilla/show_bug.cgi?id=25661 a while ago.
>
> Until then, I understand that the current tooling needs to work with
> libabigail 1.6.

That's what we have in the CI with a 1.6 libabigail compiled in Ubuntu 18.04.

I tested 20.04 in Travis (I can send a patch later), but it still has
a 1.6 version.
We will have to live with a "not that recent" version for some time.


>
> So maybe a more specific suppression rule (that you could still remove
> for the 20.11 stable branch) could look like:
>
>     [suppress_type]
>            name = rte_mbuf_ext_shared_info
>            has_data_member_inserted_between = {offset_of(refcnt_atomic), offset_of(refcnt_atomic)}
>
>
> It's a "hack" that will only suppress change reports on the
> rte_mbuf_ext_shared_info type if:
>
>   1/ it it has a data member inserted at the
>      offset of its data member 'refcnt_atomic',
>
>      AND
>
>   2/ the size of rte_mbuf_ext_shared_info doesn't change.
>
>
> There are cases where this won't work, though.  But it might work for
> this case.  If it does, then great.  I think it'd be a better solution
> than a blanket suppression of all the changes on the type.

Nice, thanks Dodji.


-- 
David Marchand


  reply	other threads:[~2020-07-16 19:12 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-11 10:26 [dpdk-dev] [PATCH] mbuf: use c11 atomics " Phil Yang
2020-07-03 15:38 ` David Marchand
2020-07-06  8:03   ` Phil Yang
2020-07-07 10:10 ` [dpdk-dev] [PATCH v2] mbuf: use C11 " Phil Yang
2020-07-07 17:13   ` Stephen Hemminger
2020-07-08  4:48     ` Phil Yang
2020-07-08 11:43       ` Olivier Matz
2020-07-09  9:52         ` Phil Yang
2020-07-08  5:11   ` Phil Yang
2020-07-08 11:44   ` Olivier Matz
2020-07-09 10:00     ` Phil Yang
2020-07-09 10:10   ` [dpdk-dev] [PATCH v3] mbuf: use C11 atomic built-ins " Phil Yang
2020-07-09 11:03     ` Olivier Matz
2020-07-09 13:00       ` Phil Yang
2020-07-09 13:31         ` Honnappa Nagarahalli
2020-07-09 14:10           ` Phil Yang
2020-07-09 15:58     ` [dpdk-dev] [PATCH v4 1/2] " Phil Yang
2020-07-09 15:58       ` [dpdk-dev] [PATCH v4 2/2] doc: announce deprecation of refcnt atomic member Phil Yang
2020-07-10  2:55         ` Ruifeng Wang
2020-07-13 15:54           ` Phil Yang
2020-07-14 10:41         ` Ananyev, Konstantin
2020-07-15 12:29       ` [dpdk-dev] [PATCH v4 1/2] mbuf: use C11 atomic built-ins for refcnt operations David Marchand
2020-07-15 12:49         ` Aaron Conole
2020-07-15 16:29         ` Phil Yang
2020-07-16  4:16         ` Phil Yang
2020-07-16 11:30           ` David Marchand
2020-07-16 13:20             ` Dodji Seketeli
2020-07-16 19:11               ` David Marchand [this message]
2020-07-17  4:41                 ` Phil Yang
2020-07-16 11:32       ` Olivier Matz
2020-07-17  4:36       ` [dpdk-dev] [PATCH v5 1/2] mbuf: use C11 atomic builtins " Phil Yang
2020-07-17  4:36         ` [dpdk-dev] [PATCH v5 2/2] doc: announce deprecation of refcnt atomic member Phil Yang
2020-07-17 11:45           ` Olivier Matz
2020-07-17 14:32           ` David Marchand
2020-07-17 14:35             ` David Marchand
2020-07-17 16:06               ` Ananyev, Konstantin
2020-07-17 16:20               ` Bruce Richardson
2020-07-21  8:35                 ` David Marchand
2020-07-21  8:48                   ` Ananyev, Konstantin
2020-07-21  8:37         ` [dpdk-dev] [PATCH v5 1/2] mbuf: use C11 atomic builtins for refcnt operations David Marchand

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to='CAJFAV8w_X1DEf_QE5pm6WP7m9BZiCDH36b9C3x0deGy=6fDU9A@mail.gmail.com' \
    --to=david.marchand@redhat.com \
    --cc=Honnappa.Nagarahalli@arm.com \
    --cc=Phil.Yang@arm.com \
    --cc=Ruifeng.Wang@arm.com \
    --cc=aconole@redhat.com \
    --cc=dev@dpdk.org \
    --cc=dodji@redhat.com \
    --cc=drc@linux.vnet.ibm.com \
    --cc=mdr@ashroe.eu \
    --cc=nd@arm.com \
    --cc=olivier.matz@6wind.com \
    --cc=stephen@networkplumber.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

DPDK patches and discussions

This inbox may be cloned and mirrored by anyone:

	git clone --mirror https://inbox.dpdk.org/dev/0 dev/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 dev dev/ https://inbox.dpdk.org/dev \
		dev@dpdk.org
	public-inbox-index dev

Example config snippet for mirrors.
Newsgroup available over NNTP:
	nntp://inbox.dpdk.org/inbox.dpdk.dev


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git