From: Jiri Olsa <olsajiri@gmail.com>
To: sashiko-reviews@lists.linux.dev
Cc: bpf@vger.kernel.org
Subject: Re: [PATCHv7 bpf-next 21/29] selftests/bpf: Add tracing multi skel/pattern/ids attach tests
Date: Thu, 4 Jun 2026 10:00:43 +0200 [thread overview]
Message-ID: <aiEwq_Oo7vKbxZAB@krava> (raw)
In-Reply-To: <20260603134059.D02E71F00893@smtp.kernel.org>
On Wed, Jun 03, 2026 at 01:40:59PM +0000, sashiko-bot@kernel.org wrote:
> Thank you for your contribution! Sashiko AI review found 1 potential issue(s) to consider:
> - [Low] The patch introduces tests using new libbpf APIs and section definitions (`bpf_program__attach_tracing_multi`, `struct bpf_tracing_multi_opts`, `fentry.multi`) that are not present in the tree.
> --
>
> commit 51532d297dcd0ba4ad28dece86396b88a934e780
> Author: Jiri Olsa <jolsa@kernel.org>
> Subject: selftests/bpf: Add tracing multi skel/pattern/ids attach tests
>
> Adding tests for tracing_multi link attachment via all possible libbpf
> apis - skeleton, function pattern and btf ids.
>
> > diff --git a/tools/testing/selftests/bpf/prog_tests/tracing_multi.c b/tools/testing/selftests/bpf/prog_tests/tracing_multi.c
> > new file mode 100644
> > index 0000000000000..f333b2514b345
> > --- /dev/null
> > +++ b/tools/testing/selftests/bpf/prog_tests/tracing_multi.c
>
> [ ... ]
>
> > +static void test_link_api_pattern(void)
> > +{
> > + struct tracing_multi *skel;
> > +
> > + skel = tracing_multi__open_and_load();
> > + if (!ASSERT_OK_PTR(skel, "tracing_multi__open_and_load"))
> > + return;
> > +
> > + skel->bss->pid = getpid();
> > +
> > + skel->links.test_fentry = bpf_program__attach_tracing_multi(skel->progs.test_fentry,
> > + "bpf_fentry_test*", NULL);
>
> [Severity: Low]
> Is the bpf_program__attach_tracing_multi() function implemented in the tree?
> I couldn't find its definition in the libbpf headers, which might cause a
> build failure when compiling the selftests.
yes, added in: libbpf: Add support to create tracing multi link
>
> [ ... ]
>
> > +static void test_link_api_ids(void)
> > +{
> > + LIBBPF_OPTS(bpf_tracing_multi_opts, opts);
>
> [Severity: Low]
> Does struct bpf_tracing_multi_opts exist in the current libbpf headers?
> This instantiation seems to rely on a structure that is missing from the tree.
yes, in: libbpf: Add support to create tracing multi link
>
> [ ... ]
>
> > diff --git a/tools/testing/selftests/bpf/progs/tracing_multi_attach.c b/tools/testing/selftests/bpf/progs/tracing_multi_attach.c
> > new file mode 100644
> > index 0000000000000..332d0a423a430
> > --- /dev/null
> > +++ b/tools/testing/selftests/bpf/progs/tracing_multi_attach.c
>
> [ ... ]
>
> > +__u64 test_result_fentry = 0;
> > +__u64 test_result_fexit = 0;
> > +
> > +SEC("fentry.multi/bpf_fentry_test*")
> > +int BPF_PROG(test_fentry)
>
> [Severity: Low]
> Is the fentry.multi section prefix supported by the current version of
> libbpf? Using an unrecognized section might cause libbpf to fail when loading
> the object.
yes, in: libbpf: Add support to create tracing multi link
jirka
next prev parent reply other threads:[~2026-06-04 8:00 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-03 11:05 [PATCHv7 bpf-next 00/29] bpf: tracing_multi link Jiri Olsa
2026-06-03 11:05 ` [PATCHv7 bpf-next 01/29] ftrace: Add ftrace_hash_count function Jiri Olsa
2026-06-03 11:26 ` sashiko-bot
2026-06-04 7:59 ` Jiri Olsa
2026-06-03 11:05 ` [PATCHv7 bpf-next 02/29] ftrace: Add ftrace_hash_remove function Jiri Olsa
2026-06-03 11:05 ` [PATCHv7 bpf-next 03/29] ftrace: Add add_ftrace_hash_entry function Jiri Olsa
2026-06-09 14:29 ` Steven Rostedt
2026-06-09 14:43 ` Kumar Kartikeya Dwivedi
2026-06-03 11:05 ` [PATCHv7 bpf-next 04/29] bpf: Use mutex lock pool for bpf trampolines Jiri Olsa
2026-06-03 11:28 ` sashiko-bot
2026-06-04 7:59 ` Jiri Olsa
2026-06-03 11:05 ` [PATCHv7 bpf-next 05/29] bpf: Add struct bpf_trampoline_ops object Jiri Olsa
2026-06-03 11:05 ` [PATCHv7 bpf-next 06/29] bpf: Move trampoline image setup into bpf_trampoline_ops callbacks Jiri Olsa
2026-06-03 11:05 ` [PATCHv7 bpf-next 07/29] bpf: Add bpf_trampoline_add/remove_prog functions Jiri Olsa
2026-06-03 11:05 ` [PATCHv7 bpf-next 08/29] bpf: Add struct bpf_tramp_node object Jiri Olsa
2026-06-03 11:05 ` [PATCHv7 bpf-next 09/29] bpf: Factor fsession link to use struct bpf_tramp_node Jiri Olsa
2026-06-03 11:05 ` [PATCHv7 bpf-next 10/29] bpf: Add multi tracing attach types Jiri Olsa
2026-06-03 11:37 ` sashiko-bot
2026-06-04 8:00 ` Jiri Olsa
2026-06-03 11:52 ` bot+bpf-ci
2026-06-03 11:05 ` [PATCHv7 bpf-next 11/29] bpf: Move sleepable verification code to btf_id_allow_sleepable Jiri Olsa
2026-06-03 11:05 ` [PATCHv7 bpf-next 12/29] bpf: Add bpf_trampoline_multi_attach/detach functions Jiri Olsa
2026-06-03 11:52 ` bot+bpf-ci
2026-06-03 11:05 ` [PATCHv7 bpf-next 13/29] bpf: Add support for tracing multi link Jiri Olsa
2026-06-03 11:41 ` sashiko-bot
2026-06-04 8:00 ` Jiri Olsa
2026-06-03 11:52 ` bot+bpf-ci
2026-06-04 8:00 ` Jiri Olsa
2026-06-03 11:05 ` [PATCHv7 bpf-next 14/29] bpf: Add support for tracing_multi link cookies Jiri Olsa
2026-06-03 11:05 ` [PATCHv7 bpf-next 15/29] bpf: Add support for tracing_multi link session Jiri Olsa
2026-06-03 11:05 ` [PATCHv7 bpf-next 16/29] bpf: Add support for tracing_multi link fdinfo Jiri Olsa
2026-06-03 11:05 ` [PATCHv7 bpf-next 17/29] libbpf: Add bpf_object_cleanup_btf function Jiri Olsa
2026-06-03 11:05 ` [PATCHv7 bpf-next 18/29] libbpf: Add bpf_link_create support for tracing_multi link Jiri Olsa
2026-06-03 11:34 ` sashiko-bot
2026-06-04 7:59 ` Jiri Olsa
2026-06-03 11:05 ` [PATCHv7 bpf-next 19/29] libbpf: Add btf_type_is_traceable_func function Jiri Olsa
2026-06-03 11:36 ` sashiko-bot
2026-06-04 7:59 ` Jiri Olsa
2026-06-03 11:05 ` [PATCHv7 bpf-next 20/29] libbpf: Add support to create tracing multi link Jiri Olsa
2026-06-03 11:05 ` [PATCHv7 bpf-next 21/29] selftests/bpf: Add tracing multi skel/pattern/ids attach tests Jiri Olsa
2026-06-03 13:40 ` sashiko-bot
2026-06-04 8:00 ` Jiri Olsa [this message]
2026-06-03 11:05 ` [PATCHv7 bpf-next 22/29] selftests/bpf: Add tracing multi skel/pattern/ids module " Jiri Olsa
2026-06-03 11:05 ` [PATCHv7 bpf-next 23/29] selftests/bpf: Add tracing multi intersect tests Jiri Olsa
2026-06-03 11:05 ` [PATCHv7 bpf-next 24/29] selftests/bpf: Add tracing multi cookies test Jiri Olsa
2026-06-03 11:05 ` [PATCHv7 bpf-next 25/29] selftests/bpf: Add tracing multi session test Jiri Olsa
2026-06-03 11:05 ` [PATCHv7 bpf-next 26/29] selftests/bpf: Add tracing multi attach fails test Jiri Olsa
2026-06-03 11:05 ` [PATCHv7 bpf-next 27/29] selftests/bpf: Add tracing multi verifier " Jiri Olsa
2026-06-03 11:05 ` [PATCHv7 bpf-next 28/29] selftests/bpf: Add tracing multi attach benchmark test Jiri Olsa
2026-06-03 11:05 ` [PATCHv7 bpf-next 29/29] selftests/bpf: Add tracing multi attach rollback tests Jiri Olsa
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