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File _service:tar_scm:backport-libbpf-disassociate-section-handler-on-explicit-bpf_.patch of Package libbpf
From 3fd6eebb2d4d10546f0dc89cbc14ad110c4e5717 Mon Sep 17 00:00:00 2001 From: Andrii Nakryiko <andrii@kernel.org> Date: Mon, 27 Mar 2023 11:52:00 -0700 Subject: [PATCH] libbpf: disassociate section handler on explicit bpf_program__set_type() call MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit If user explicitly overrides programs's type with bpf_program__set_type() API call, we need to disassociate whatever SEC_DEF handler libbpf determined initially based on program's SEC() definition, as it's not goind to be valid anymore and could lead to crashes and/or confusing failures. Also, fix up bpf_prog_test_load() helper in selftests/bpf, which is force-setting program type (even if that's completely unnecessary; this is quite a legacy piece of code), and thus should expect auto-attach to not work, yet one of the tests explicitly relies on auto-attach for testing. Instead, force-set program type only if it differs from the desired one. Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/r/20230327185202.1929145-2-andrii@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Daniel Müller <deso@posteo.net> Conflict:NA Reference:https://github.com/libbpf/libbpf/commit/3fd6eebb2d4d10546f0dc89cbc14ad110c4e5717 --- src/libbpf.c | 1 + 1 file changed, 1 insertion(+) diff --git a/src/libbpf.c b/src/libbpf.c index 15737d7..49cd304 100644 --- a/src/libbpf.c +++ b/src/libbpf.c @@ -8468,6 +8468,7 @@ int bpf_program__set_type(struct bpf_program *prog, enum bpf_prog_type type) return libbpf_err(-EBUSY); prog->type = type; + prog->sec_def = NULL; return 0; } -- 2.33.0
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