Re: [PATCH bpf-next] selftests/bpf: drop xdping tool

[Paul Chaignon <paul.chaignon@gmail.com>]

On Fri, Apr 17, 2026 at 05:33:02PM +0200, Alexis Lothoré (eBPF Foundation) wrote:
> As part of a larger cleanup effort in the bpf selftests directory,
> tests and scripts are either being converted to the test_progs framework
> (so they are executed automatically in bpf CI), or removed if not
> relevant for such integration.
> 
> The test_xdping.sh script (with the associated xdping.c) acts as a RTT
> measurement tool, by attaching two small xdp programs to two interfaces.
> Converting this test to test_progs may not make much sense:
> - RTT measurement does not really fit in the scope of a functional test,
>   this is rather about measuring some performance level.
> - there are other existing tests in test_progs that actively validate
>   XDP features like program attachment, return value processing, packet
>   modification, etc
> 
> Drop test_xdping.sh and the corresponding xdping.c userspace part. Keep
> the ebpf part (xdping_kern.c), as it is used by another test integrated
> in test_progs (btf_dump)

The xdping_kern object file is just used in bpf_dump to check we can
parse the license as expected. You can replace that by any other test
with a GPL license (ex., btf_type_tag_percpu.bpf.o) and remove
xdping_kern.c.

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