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author | Stanislav Fomichev <sdf@google.com> | 2022-08-04 13:11:39 -0700 |
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committer | Daniel Borkmann <daniel@iogearbox.net> | 2022-08-08 15:53:17 +0200 |
commit | 6644aabbd8973a9f8008cabfd054a36b69a3a3f5 (patch) | |
tree | 1e03f9cee39a4d071d54bc204637672175a43257 /tools/testing | |
parent | mptcp, btf: Add struct mptcp_sock definition when CONFIG_MPTCP is disabled (diff) | |
download | linux-dev-6644aabbd8973a9f8008cabfd054a36b69a3a3f5.tar.xz linux-dev-6644aabbd8973a9f8008cabfd054a36b69a3a3f5.zip |
bpf: Use proper target btf when exporting attach_btf_obj_id
When attaching to program, the program itself might not be attached
to anything (and, hence, might not have attach_btf), so we can't
unconditionally use 'prog->aux->dst_prog->aux->attach_btf'.
Instead, use bpf_prog_get_target_btf to pick proper target BTF:
* when attached to dst_prog, use dst_prog->aux->btf
* when attached to kernel btf, use prog->aux->attach_btf
Fixes: b79c9fc9551b ("bpf: implement BPF_PROG_QUERY for BPF_LSM_CGROUP")
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Hao Luo <haoluo@google.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20220804201140.1340684-1-sdf@google.com
Diffstat (limited to 'tools/testing')
0 files changed, 0 insertions, 0 deletions