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Only output backtracking information in log level 2

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Backtracking information is very verbose, don't print it in log
level 1 to improve readability.

Signed-off-by: Christy Lee <christylee@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20211216213358.3374427-4-christylee@fb.com
This commit is contained in:
Christy Lee 2021-12-16 13:33:58 -08:00 committed by Alexei Starovoitov
parent 2e5766483c
commit 496f332404
1 changed files with 3 additions and 3 deletions
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6
kernel/bpf/verifier.c
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@ -2398,7 +2398,7 @@ static int backtrack_insn(struct bpf_verifier_env *env, int idx,
if (insn->code == 0)
return 0;
if (env->log.level & BPF_LOG_LEVEL) {
if (env->log.level & BPF_LOG_LEVEL2) {
verbose(env, "regs=%x stack=%llx before ", *reg_mask, *stack_mask);
verbose(env, "%d: ", idx);
print_bpf_insn(&cbs, insn, env->allow_ptr_leaks);
@ -2656,7 +2656,7 @@ static int __mark_chain_precision(struct bpf_verifier_env *env, int regno,
DECLARE_BITMAP(mask, 64);
u32 history = st->jmp_history_cnt;
if (env->log.level & BPF_LOG_LEVEL)
if (env->log.level & BPF_LOG_LEVEL2)
verbose(env, "last_idx %d first_idx %d\n", last_idx, first_idx);
for (i = last_idx;;) {
if (skip_first) {
@ -2743,7 +2743,7 @@ static int __mark_chain_precision(struct bpf_verifier_env *env, int regno,
new_marks = true;
reg->precise = true;
}
if (env->log.level & BPF_LOG_LEVEL) {
if (env->log.level & BPF_LOG_LEVEL2) {
verbose(env, "parent %s regs=%x stack=%llx marks:",
new_marks ? "didn't have" : "already had",
reg_mask, stack_mask);