From: Jakub Kicinski <kuba@kernel.org>
To: Linus Heckemann <git@sphalerite.org>
Cc: edumazet@google.com, liuhangbin@gmail.com, davem@davemloft.net,
eric.dumazet@gmail.com, horms@kernel.org, morikw2@gmail.com,
netdev@vger.kernel.org, pabeni@redhat.com,
syzbot+d4dda070f833dc5dc89a@syzkaller.appspotmail.com
Subject: Re: [PATCH v2] selftests/net: add test for IPv4-in-IPv6 tunneling
Date: Tue, 10 Feb 2026 18:14:07 -0800 [thread overview]
Message-ID: <20260210181407.413c702d@kernel.org> (raw)
In-Reply-To: <20260209190008.139099-2-git@sphalerite.org>
On Mon, 9 Feb 2026 20:00:09 +0100 Linus Heckemann wrote:
> commit 81c734dae203 ("ip6_tunnel: use skb_vlan_inet_prepare() in
> __ip6_tnl_rcv()") was fine in and of itself, but its backport to 6.12
> (and 6.6) broke IPv4-in-IPv6 tunneling, see [1]. This adds a self-test
> for basic IPv4-in-IPv6 and IPv6-in-IPv6 functionality.
>
> [1]: https://lore.kernel.org/all/CAA2RiuSnH_2xc+-W6EnFEG00XjS-dszMq61JEvRjcGS31CBw=g@mail.gmail.com/
Missing your Signed-off-by: ...
Is this the output you expect (ignore the first two numbers, they are
just output timing within our infra):
TAP version 13
1..1
# overriding timeout to 7200
# selftests: net: ip6_tunnel.sh
# Warning: file ip6_tunnel.sh is not executable
# 1.17 [+1.17] PING 172.0.0.2 (172.0.0.2) 56(84) bytes of data.
# 1.18 [+0.00] 64 bytes from 172.0.0.2: icmp_seq=1 ttl=64 time=2.31 ms
# 1.18 [+0.00]
# 1.18 [+0.00] --- 172.0.0.2 ping statistics ---
# 1.19 [+0.00] 1 packets transmitted, 1 received, 0% packet loss, time 0ms
# 1.19 [+0.00] rtt min/avg/max/mdev = 2.311/2.311/2.311/0.000 ms
# 1.24 [+0.05] PING 2001:db8:6::2 (2001:db8:6::2) 56 data bytes
# 1.24 [+0.00] 64 bytes from 2001:db8:6::2: icmp_seq=1 ttl=64 time=0.368 ms
# 1.25 [+0.00]
# 1.25 [+0.00] --- 2001:db8:6::2 ping statistics ---
# 1.25 [+0.00] 1 packets transmitted, 1 received, 0% packet loss, time 0ms
# 1.25 [+0.00] rtt min/avg/max/mdev = 0.368/0.368/0.368/0.000 ms
# 1.58 [+0.33] Cannot find device "transport1"
ok 1 selftests: net: ip6_tunnel.sh
Tests don't usually print raw ping output to stdout, plus the
Cannot find device "transport1"
looks a bit off?
--
pw-bot: cr
prev parent reply other threads:[~2026-02-11 2:14 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-09 19:00 [PATCH v2] selftests/net: add test for IPv4-in-IPv6 tunneling Linus Heckemann
2026-02-10 1:59 ` Hangbin Liu
2026-02-11 2:14 ` Jakub Kicinski [this message]
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