netdev - Re: [PATCH 4.9 stable 0/5] net: ip6 defrag: backport fixes

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Date:   Mon, 29 Apr 2019 10:54:07 -0600
From:   Captain Wiggum <captwiggum@...il.com>
To:     Peter Oskolkov <posk@...k.io>
Cc:     stable@...r.kernel.org, linux-netdev <netdev@...r.kernel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        David Miller <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Florian Westphal <fw@...len.de>,
        Sasha Levin <sashal@...nel.org>, Lars Persson <lists@...h.nu>,
        Peter Oskolkov <posk@...gle.com>
Subject: Re: [PATCH 4.9 stable 0/5] net: ip6 defrag: backport fixes

My $.02 I do not see 4.4 used much in my circles. We do not use it
anywhere at McAfee.

On Fri, Apr 26, 2019 at 3:27 PM Peter Oskolkov <posk@...k.io> wrote:
>
> On Fri, Apr 26, 2019 at 8:41 AM Peter Oskolkov <posk@...gle.com> wrote:
> >
> > This is a backport of a 5.1rc patchset:
> >   https://patchwork.ozlabs.org/cover/1029418/
> >
> > Which was backported into 4.19:
> >   https://patchwork.ozlabs.org/cover/1081619/
> >
> > and into 4.14:
> >   https://patchwork.ozlabs.org/cover/1089651/
> >
> >
> > This 4.9 patchset is very close to the 4.14 patchset above
> > (cherry-picks from 4.14 were almost clean).
>
> FYI: I have a patchset that backports these into 4.4, but things got
> much hairier
> there, as I needed to backport three additional netfilter patches. So I'm not
> going to send the patchset to the lists unless there is a real need and somebody
> with enough knowledge of netfitler volunteers to review/test it (I tested
> that IP defrag works, but there are netfilter-related pieces that
> I understand little about).
>
> >
> >
> > Eric Dumazet (1):
> >   ipv6: frags: fix a lockdep false positive
> >
> > Florian Westphal (1):
> >   ipv6: remove dependency of nf_defrag_ipv6 on ipv6 module
> >
> > Peter Oskolkov (3):
> >   net: IP defrag: encapsulate rbtree defrag code into callable functions
> >   net: IP6 defrag: use rbtrees for IPv6 defrag
> >   net: IP6 defrag: use rbtrees in nf_conntrack_reasm.c
> >
> >  include/net/inet_frag.h                   |  16 +-
> >  include/net/ipv6.h                        |  29 --
> >  include/net/ipv6_frag.h                   | 111 +++++++
> >  net/ieee802154/6lowpan/reassembly.c       |   2 +-
> >  net/ipv4/inet_fragment.c                  | 293 ++++++++++++++++++
> >  net/ipv4/ip_fragment.c                    | 295 +++---------------
> >  net/ipv6/netfilter/nf_conntrack_reasm.c   | 273 +++++-----------
> >  net/ipv6/netfilter/nf_defrag_ipv6_hooks.c |   3 +-
> >  net/ipv6/reassembly.c                     | 361 ++++++----------------
> >  net/openvswitch/conntrack.c               |   1 +
> >  10 files changed, 631 insertions(+), 753 deletions(-)
> >  create mode 100644 include/net/ipv6_frag.h
> >
> > --
> > 2.21.0.593.g511ec345e18-goog
> >