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bpf: Simplify logging-related error conditions handling

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Move log->level == 0 check into bpf_vlog_truncated() instead of doing it
explicitly. Also remove unnecessary goto in kernel/bpf/verifier.c.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Lorenz Bauer <lmb@isovalent.com>
Link: https://lore.kernel.org/bpf/20230406234205.323208-11-andrii@kernel.org
This commit is contained in:
Andrii Nakryiko
2023-04-06 16:41:56 -07:00
committed by Daniel Borkmann
parent cbedb42a0d
commit 8a6ca6bc55
3 changed files with 6 additions and 6 deletions
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kernel/bpf/log.c
+3 -1
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@@ -169,7 +169,9 @@ static int bpf_vlog_reverse_ubuf(struct bpf_verifier_log *log, int start, int en
bool bpf_vlog_truncated(const struct bpf_verifier_log *log)
{
if (log->level & BPF_LOG_FIXED)
if (!log->level)
return false;
else if (log->level & BPF_LOG_FIXED)
return bpf_log_used(log) >= log->len_total - 1;
else
return log->start_pos > 0;