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2023-03-10selftests/bpf: fix lots of silly mistakes pointed out by compilerAndrii Nakryiko1-43/+0
Once we enable -Wall for BPF sources, compiler will complain about lots of unused variables, variables that are set but never read, etc. Fix all these issues first before enabling -Wall in Makefile. Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/r/20230309054015.4068562-4-andrii@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2022-07-14selftests/bpf: Return true/false (not 1/0) from bool functionsLinkui Xiao1-15/+15
Return boolean values ("true" or "false") instead of 1 or 0 from bool functions. This fixes the following warnings from coccicheck: tools/testing/selftests/bpf/progs/test_xdp_noinline.c:407:9-10: WARNING: return of 0/1 in function 'decap_v4' with return type bool tools/testing/selftests/bpf/progs/test_xdp_noinline.c:389:9-10: WARNING: return of 0/1 in function 'decap_v6' with return type bool tools/testing/selftests/bpf/progs/test_xdp_noinline.c:290:9-10: WARNING: return of 0/1 in function 'encap_v6' with return type bool tools/testing/selftests/bpf/progs/test_xdp_noinline.c:264:9-10: WARNING: return of 0/1 in function 'parse_tcp' with return type bool tools/testing/selftests/bpf/progs/test_xdp_noinline.c:242:9-10: WARNING: return of 0/1 in function 'parse_udp' with return type bool Generated by: scripts/coccinelle/misc/boolreturn.cocci Suggested-by: Stanislav Fomichev <sdf@google.com> Signed-off-by: Linkui Xiao <xiaolinkui@kylinos.cn> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Reviewed-by: Stanislav Fomichev <sdf@google.com> Link: https://lore.kernel.org/bpf/20220714015647.25074-1-xiaolinkui@kylinos.cn
2022-04-04selftests/bpf: Return true/false (not 1/0) from bool functionsHaowen Bai1-6/+6
Return boolean values ("true" or "false") instead of 1 or 0 from bool functions. This fixes the following warnings from coccicheck: ./tools/testing/selftests/bpf/progs/test_xdp_noinline.c:567:9-10: WARNING: return of 0/1 in function 'get_packet_dst' with return type bool ./tools/testing/selftests/bpf/progs/test_l4lb_noinline.c:221:9-10: WARNING: return of 0/1 in function 'get_packet_dst' with return type bool Signed-off-by: Haowen Bai <baihaowen@meizu.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Reviewed-by: Shuah Khan <skhan@linuxfoundation.org> Acked-by: Yonghong Song <yhs@fb.com> Link: https://lore.kernel.org/bpf/1648779354-14700-1-git-send-email-baihaowen@meizu.com
2021-09-28selftests/bpf: Normalize XDP section names in selftestsAndrii Nakryiko1-2/+2
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 <andrii@kernel.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Dave Marchevsky <davemarchevsky@fb.com> Link: https://lore.kernel.org/bpf/20210928161946.2512801-3-andrii@kernel.org
2020-09-04selftests/bpf: Modernize xdp_noinline test w/ skeleton and __noinlineAndrii Nakryiko1-10/+26
Update xdp_noinline to use BPF skeleton and force __noinline on helper sub-programs. Also, split existing logic into v4- and v6-only to complicate sub-program calling patterns (partially overlapped sets of functions for entry-level BPF programs). Signed-off-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20200903203542.15944-14-andriin@fb.com
2020-01-21selftests: Use consistent include paths for libbpfToke Høiland-Jørgensen1-2/+2
Fix all selftests to include libbpf header files with the bpf/ prefix, to be consistent with external users of the library. Also ensure that all includes of exported libbpf header files (those that are exported on 'make install' of the library) use bracketed includes instead of quoted. To not break the build, keep the old include path until everything has been changed to the new one; a subsequent patch will remove that. Fixes: 6910d7d3867a ("selftests/bpf: Ensure bpf_helper_defs.h are taken from selftests dir") Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Andrii Nakryiko <andriin@fb.com> Link: https://lore.kernel.org/bpf/157952560568.1683545.9649335788846513446.stgit@toke.dk
2020-01-10selftests/bpf: Modify a test to check global functionsAlexei Starovoitov1-2/+2
Make two static functions in test_xdp_noinline.c global: before: processed 2790 insns after: processed 2598 insns Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Song Liu <songliubraving@fb.com> Link: https://lore.kernel.org/bpf/20200110064124.1760511-6-ast@kernel.org
2019-07-18selftests/bpf: fix test_xdp_noinline on s390Ilya Leoshkevich1-8/+9
test_xdp_noinline fails on s390 due to a handful of endianness issues. Use ntohs for parsing eth_proto. Replace bswaps with ntohs/htons. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Acked-by: Vasily Gorbik <gor@linux.ibm.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2019-07-05selftests/bpf: convert selftests using BTF-defined maps to new syntaxAndrii Nakryiko1-50/+31
Convert all the existing selftests that are already using BTF-defined maps to use new syntax (with no static data initialization). Signed-off-by: Andrii Nakryiko <andriin@fb.com> Acked-by: Song Liu <songliubraving@fb.com> Acked-by: Yonghong Song <yhs@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2019-06-18selftests/bpf: convert tests w/ custom values to BTF-defined mapsAndrii Nakryiko1-23/+37
Convert a bulk of selftests that have maps with custom (not integer) key and/or value. Signed-off-by: Andrii Nakryiko <andriin@fb.com> Acked-by: Song Liu <songliubraving@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2019-05-24selftests: bpf: Move bpf_printk to bpf_helpers.hMichal Rostecki1-7/+0
bpf_printk is a macro which is commonly used to print out debug messages in BPF programs and it was copied in many selftests and samples. Since all of them include bpf_helpers.h, this change moves the macro there. Signed-off-by: Michal Rostecki <mrostecki@opensuse.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2019-02-12selftests: bpf: centre kernel bpf objects under new subdir "progs"Jiong Wang1-0/+833
At the moment, all kernel bpf objects are listed under BPF_OBJ_FILES. Listing them manually sometimes causing patch conflict when people are adding new testcases simultaneously. It is better to centre all the related source files under a subdir "progs", then auto-generate the object file list. Suggested-by: Alexei Starovoitov <ast@kernel.org> Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Jiong Wang <jiong.wang@netronome.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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