Re: [PATCH bpf-next v3 12/14] selftests/bpf: add network helpers to generate udp checksums

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Subject: Re: [PATCH bpf-next v3 12/14] selftests/bpf: add network helpers to generate udp checksums
From: Stanislav Fomichev <stfomichev@xxxxxxxxx>
Date: Wed, 20 Nov 2024 07:56:16 -0800
Cc: Andrii Nakryiko <andrii@xxxxxxxxxx>, Eduard Zingerman <eddyz87@xxxxxxxxx>, Mykola Lysenko <mykolal@xxxxxx>, Alexei Starovoitov <ast@xxxxxxxxxx>, Daniel Borkmann <daniel@xxxxxxxxxxxxx>, Martin KaFai Lau <martin.lau@xxxxxxxxx>, Song Liu <song@xxxxxxxxxx>, Yonghong Song <yonghong.song@xxxxxxxxx>, John Fastabend <john.fastabend@xxxxxxxxx>, KP Singh <kpsingh@xxxxxxxxxx>, Stanislav Fomichev <sdf@xxxxxxxxxxx>, Hao Luo <haoluo@xxxxxxxxxx>, Jiri Olsa <jolsa@xxxxxxxxxx>, Shuah Khan <shuah@xxxxxxxxxx>, "David S. Miller" <davem@xxxxxxxxxxxxx>, Jakub Kicinski <kuba@xxxxxxxxxx>, Jesper Dangaard Brouer <hawk@xxxxxxxxxx>, ebpf@xxxxxxxxxxxxxxxxxxx, Thomas Petazzoni <thomas.petazzoni@xxxxxxxxxxx>, Bastien Curutchet <bastien.curutchet@xxxxxxxxxxx>, bpf@xxxxxxxxxxxxxxx, linux-kselftest@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, netdev@xxxxxxxxxxxxxxx
In-reply-to: <20241120-flow_dissector-v3-12-45b46494f937@bootlin.com>

On 11/20, Alexis Lothoré (eBPF Foundation) wrote:
> network_helpers.c provides some helpers to generate ip checksums or ip
> pseudo-header checksums, but not for upper layers (eg: udp checksums)
> 
> Add helpers for udp checksum to allow manually building udp packets.
> 
> Signed-off-by: Alexis Lothoré (eBPF Foundation) <alexis.lothore@xxxxxxxxxxx>

Acked-by: Stanislav Fomichev <sdf@xxxxxxxxxxx>

References:
- [PATCH bpf-next v3 00/14] selftests/bpf: migrate test_flow_dissector.sh to test_progs
  - From: Alexis Lothoré (eBPF Foundation)
- [PATCH bpf-next v3 12/14] selftests/bpf: add network helpers to generate udp checksums
  - From: Alexis Lothoré (eBPF Foundation)

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