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-rw-r--r--kernel/bpf/disasm.c13
1 files changed, 10 insertions, 3 deletions
diff --git a/kernel/bpf/disasm.c b/kernel/bpf/disasm.c
index faa54d58972c..bbfc6bb79240 100644
--- a/kernel/bpf/disasm.c
+++ b/kernel/bpf/disasm.c
@@ -19,16 +19,23 @@ static const char *__func_get_name(const struct bpf_insn_cbs *cbs,
{
BUILD_BUG_ON(ARRAY_SIZE(func_id_str) != __BPF_FUNC_MAX_ID);
- if (insn->src_reg != BPF_PSEUDO_CALL &&
+ if (!insn->src_reg &&
insn->imm >= 0 && insn->imm < __BPF_FUNC_MAX_ID &&
func_id_str[insn->imm])
return func_id_str[insn->imm];
- if (cbs && cbs->cb_call)
- return cbs->cb_call(cbs->private_data, insn);
+ if (cbs && cbs->cb_call) {
+ const char *res;
+
+ res = cbs->cb_call(cbs->private_data, insn);
+ if (res)
+ return res;
+ }
if (insn->src_reg == BPF_PSEUDO_CALL)
snprintf(buff, len, "%+d", insn->imm);
+ else if (insn->src_reg == BPF_PSEUDO_KFUNC_CALL)
+ snprintf(buff, len, "kernel-function");
return buff;
}