Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
MIME-Version: 1.0
References: <20220123001258.2460594-1-sashal@kernel.org> <20220123001258.2460594-3-sashal@kernel.org>
 <20220124075041.13c015a6@kicinski-fedora-PC1C0HJN.hsd1.ca.comcast.net>
In-Reply-To: <20220124075041.13c015a6@kicinski-fedora-PC1C0HJN.hsd1.ca.comcast.net>
From:   Ignat Korchagin <ignat@cloudflare.com>
Date:   Mon, 24 Jan 2022 15:55:14 +0000
Message-ID: <CALrw=nFwuo=OWzDimGK0MyqLs4LBu9_WkKxXLpw+e2oTJAD8Lw@mail.gmail.com>
Subject: Re: [PATCH AUTOSEL 5.10 3/9] sit: allow encapsulated IPv6 traffic to
 be delivered locally
To:     Jakub Kicinski <kuba@kernel.org>, Sasha Levin <sashal@kernel.org>,
        stable@vger.kernel.org, netdev <netdev@vger.kernel.org>
Cc:     linux-kernel <linux-kernel@vger.kernel.org>,
        Amir Razmjou <arazmjou@cloudflare.com>,
        David Ahern <dsahern@kernel.org>,
        "David S. Miller" <davem@davemloft.net>,
        Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
Content-Type: text/plain; charset="UTF-8"
Precedence: bulk

On Mon, Jan 24, 2022 at 3:50 PM Jakub Kicinski <kuba@kernel.org> wrote:
>
> On Sat, 22 Jan 2022 19:12:52 -0500 Sasha Levin wrote:
> > From: Ignat Korchagin <ignat@cloudflare.com>
> >
> > [ Upstream commit ed6ae5ca437d9d238117d90e95f7f2cc27da1b31 ]
> >
> > While experimenting with FOU encapsulation Amir noticed that encapsulated IPv6
> > traffic fails to be delivered, if the peer IP address is configured locally.
>
> Unless Ignat and Amir need it I'd vote for not backporting this to LTS.
> This patch is firmly in the "this configuration was never supported"
> category. 5.15 and 5.16 are probably fine.

We planned to use it on 5.15 and onwards. Not backporting to 5.10 is
fine for us.