kernel/tools/testing/selftests/bpf/progs/test_xdp_link.c, branch linux-6.2.y

bpf/selftests: Add check for updating XDP bpf_link with wrong program type

2022-01-11T17:44:06Z

Add a check to the xdp_link selftest that the kernel rejects replacing an XDP program with a different program type on link update. v2: - Split this out into its own patch. Signed-off-by: Toke Høiland-Jørgensen Link: https://lore.kernel.org/r/20220107221115.326171-3-toke@redhat.com Signed-off-by: Alexei Starovoitov

selftests/bpf: Normalize XDP section names in selftests

2021-09-28T20:51:19Z

Convert almost all SEC("xdp_blah") uses to strict SEC("xdp") to comply with strict libbpf 1.0 logic of exact section name match for XDP program types. There is only one exception, which is only tested through iproute2 and defines multiple XDP programs within the same BPF object. Given iproute2 still works in non-strict libbpf mode and it doesn't have means to specify XDP programs by its name (not section name/title), leave that single file alone for now until iproute2 gains lookup by function/program name. Signed-off-by: Andrii Nakryiko Signed-off-by: Alexei Starovoitov Acked-by: Dave Marchevsky Link: https://lore.kernel.org/bpf/20210928161946.2512801-3-andrii@kernel.org

selftests/bpf: Add BPF XDP link selftests

2020-07-26T03:37:02Z

Add selftest validating all the attachment logic around BPF XDP link. Test also link updates and get_obj_info() APIs. Signed-off-by: Andrii Nakryiko Signed-off-by: Alexei Starovoitov Link: https://lore.kernel.org/bpf/20200722064603.3350758-9-andriin@fb.com