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Date:      Mon, 22 Sep 2025 02:26:12 +0200
From:      Guido Falsi <madpilot@FreeBSD.org>
To:        Gleb Smirnoff <glebius@freebsd.org>
Cc:        "Herbert J. Skuhra" <herbert@gojira.at>, src-committers@freebsd.org, dev-commits-src-all@freebsd.org, dev-commits-src-main@freebsd.org
Subject:   Re: git: 31ec8b6407fd - main - sys/netinet6: Implement RFC 7217
Message-ID:  <63c07846-cd1b-4ff2-8c35-c0a6db6954cc@FreeBSD.org>
In-Reply-To: <aNCDmk7dcv8jE7yi@cell.glebi.us>
References:  <202509201231.58KCVqBC047480@gitrepo.freebsd.org> <874iswhip4.wl-herbert@gojira.at> <bad8cb94-8243-468a-9919-a713a9426eae@FreeBSD.org> <07503de1-785e-4e4d-b4e4-0524aeb064e1@FreeBSD.org> <87jz1sc9fr.wl-herbert@gojira.at> <31da7dd5-ae67-4fb4-aa47-81e57f460c9d@FreeBSD.org> <aNBKeJwyBFpkt77b@cell.glebi.us> <909b3e33-0639-4abc-915f-073cd0f304da@FreeBSD.org> <aNCDmk7dcv8jE7yi@cell.glebi.us>

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On 9/22/25 01:00, Gleb Smirnoff wrote:
> On Sun, Sep 21, 2025 at 09:17:15PM +0200, Guido Falsi wrote:
> G> > Is struct nd_ifinfo something that is used as argument to ioctl(2)?
> G> > If so, then adding counter_u64_t into it is not correct.
> G> >
> G> > I would suggest to not revert the change as a whole, but remove the
> G> > counter only and bring struct nd_ifinfo back to original.  The counter
> G> > should probably go into struct in6_ifextra that is pointed by
> G> > if->if_afdata[AF_INET6].
> G>
> G> Thanks for the feedback and suggestion!
> G>
> G> You are definitely right! I'm in the process to create a review for such a
> G> change shortly, I'll post it as soon as I'm able to have the code tested.
> 
> As long as Herbert confirms that the patch fixes the issue for him, please
> consider the change as approved by an src committer and please push it.  We
> want to enter the stabweek that starts tomorrow without a ABI breakage.
> 

@Herbert I'm attaching a patch against base sources for you to test.

It moves the new counter to in6_ifextra structure, removing the ABI 
breakage I introduced. Everything should be back to working with this.

Can you confirm it fixes the issue for you?

Thanks in advance!

-- 
Guido Falsi <madpilot@FreeBSD.org>
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