Commit 0994a54c authored by Andrii Nakryiko's avatar Andrii Nakryiko Committed by Alexei Starovoitov
Browse files

libbpf: Drop unhelpful "program too large" guess 



libbpf pretends it knows actual limit of BPF program instructions based
on UAPI headers it compiled with. There is neither any guarantee that
UAPI headers match host kernel, nor BPF verifier actually uses
BPF_MAXINSNS constant anymore. Just drop unhelpful "guess", BPF verifier
will emit actual reason for failure in its logs anyways.

Signed-off-by: default avatarAndrii Nakryiko <andrii@kernel.org>
Signed-off-by: default avatarAlexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20220426004511.2691730-3-andrii@kernel.org
parent afe98d46

tools/lib/bpf/libbpf.c

+0 −4
Original line number Diff line number Diff line
@@ -6828,10 +6828,6 @@ static int bpf_object_load_prog_instance(struct bpf_object *obj, struct bpf_prog 
		pr_warn("prog '%s': -- BEGIN PROG LOAD LOG --\n%s-- END PROG LOAD LOG --\n",

			prog->name, log_buf);

	}

	if (insns_cnt >= BPF_MAXINSNS) {

		pr_warn("prog '%s': program too large (%d insns), at most %d insns\n",

			prog->name, insns_cnt, BPF_MAXINSNS);

	}



out:

	if (own_log_buf)