kernel/tools/testing/selftests/bpf/progs/tailcall_bpf2bpf3.c, branch linux-6.2.y

selftests/bpf: Switch SEC("classifier*") usage to a strict SEC("tc")

2021-09-28T20:51:19Z

Convert all SEC("classifier*") uses to a new and strict SEC("tc") section name. In reference_tracking selftests switch from ambiguous searching by program title (section name) to non-ambiguous searching by name in some selftests, getting closer to completely removing bpf_object__find_program_by_title(). Signed-off-by: Andrii Nakryiko Signed-off-by: Alexei Starovoitov Link: https://lore.kernel.org/bpf/20210928161946.2512801-4-andrii@kernel.org

bpf, selftests: Use bpf_tail_call_static where appropriate

2020-09-30T18:50:35Z

For those locations where we use an immediate tail call map index use the newly added bpf_tail_call_static() helper. Signed-off-by: Daniel Borkmann Signed-off-by: Alexei Starovoitov Acked-by: Martin KaFai Lau Link: https://lore.kernel.org/bpf/3cfb2b799a62d22c6e7ae5897c23940bdcc24cbc.1601477936.git.daniel@iogearbox.net

selftests/bpf: Add tailcall_bpf2bpf tests

2020-09-18T02:56:07Z

Add four tests to tailcalls selftest explicitly named "tailcall_bpf2bpf_X" as their purpose is to validate that combination of tailcalls with bpf2bpf calls are working properly. These tests also validate LD_ABS from subprograms. Signed-off-by: Maciej Fijalkowski Signed-off-by: Alexei Starovoitov