From: Ido Schimmel <idosch@nvidia.com>
To: Aleksei Oladko <aleksey.oladko@virtuozzo.com>
Cc: "David S . Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Simon Horman <horms@kernel.org>, Shuah Khan <shuah@kernel.org>,
Petr Machata <petrm@nvidia.com>, Amit Cohen <amcohen@nvidia.com>,
netdev@vger.kernel.org, linux-kselftest@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/3] selftests: forwarding: vxlan_bridge_1d: fix test failure with br_netfilter enabled
Date: Wed, 11 Feb 2026 10:29:50 +0200 [thread overview]
Message-ID: <20260211082950.GA481121@shredder> (raw)
In-Reply-To: <20260210185129.480015-2-aleksey.oladko@virtuozzo.com>
On Tue, Feb 10, 2026 at 06:51:27PM +0000, Aleksei Oladko wrote:
> The test generates VXLAN traffic using mausezahn, where the encapsulated
> inner IPv4 packet contains a zero IP header checksum. After VXLAN
> decapsulation, such packets do not pass sanity checks in br_netfilter
> and are dropped, which causes the test to fail.
>
> Fix this by calculating and setting a valid IPv4 header checksum for the
> encapsulated packet generated by mausezahn, so that the packet is accepted
> by br_netfilter.
>
> Signed-off-by: Aleksei Oladko <aleksey.oladko@virtuozzo.com>
If you are targeting this as a fix, then:
1. Use "[PATCH net]" as subject prefix. See [1].
2. Add a Fixes tag.
3. Please mention in the commit message that this is fixed by using the
payload_template_calc_checksum() / payload_template_expand_checksum()
helpers that are only available in v6.3 and newer kernels.
Patch looks good otherwise (I also tested it).
[1] https://docs.kernel.org/process/maintainer-netdev.html
next prev parent reply other threads:[~2026-02-11 8:30 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-10 18:51 [PATCH 0/3] selftests: forwarding: fix br_netfilter related test failures Aleksei Oladko
2026-02-10 18:51 ` [PATCH 1/3] selftests: forwarding: vxlan_bridge_1d: fix test failure with br_netfilter enabled Aleksei Oladko
2026-02-11 8:29 ` Ido Schimmel [this message]
2026-02-10 18:51 ` [PATCH 2/3] selftests: forwarding: vxlan_bridge_1d_ipv6: " Aleksei Oladko
2026-02-10 18:51 ` [PATCH 3/3] selftests: forwarding: fix pedit tests " Aleksei Oladko
2026-02-10 23:34 ` Jakub Kicinski
2026-02-11 8:11 ` Ido Schimmel
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