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Tao Chen 39a589c74e libbpf: Wrap libbpf API direct err with libbpf_err 
Just wrap the direct err with libbpf_err, keep consistency
with other APIs.

Signed-off-by: Tao Chen <chen.dylane@linux.dev>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/bpf/20250219153711.29651-1-chen.dylane@linux.dev
Signed-off-by: Ihor Solodrai <ihor.solodrai@linux.dev>
 2025-02-24 15:10:59 -08:00
Tao Chen ad633fb142 libbpf: Fix expected_attach_type set handling in program load callback 
Referenced commit broke the logic of resetting expected_attach_type to
zero for allowed program types if kernel doesn't yet support such field.
We do need to overwrite and preserve expected_attach_type for
multi-uprobe though, but that can be done explicitly in
libbpf_prepare_prog_load().

Fixes: 5902da6d8a52 ("libbpf: Add uprobe multi link support to bpf_program__attach_usdt")
Suggested-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Tao Chen <chen.dylane@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20240925153012.212866-1-chen.dylane@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
 2024-10-11 14:12:43 -07:00