In x64 JIT, propagate tailcall info only for subprogs, not for helpers
or kfuncs.
Acked-by: Yonghong Song <yonghong.song@xxxxxxxxx>
Signed-off-by: Leon Hwang <leon.hwang@xxxxxxxxx>
---
arch/x86/net/bpf_jit_comp.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/x86/net/bpf_jit_comp.c b/arch/x86/net/bpf_jit_comp.c
index 06b080b61aa57..eb08cc6d66401 100644
--- a/arch/x86/net/bpf_jit_comp.c
+++ b/arch/x86/net/bpf_jit_comp.c
@@ -2124,10 +2124,11 @@ st: if (is_imm8(insn->off))
/* call */
case BPF_JMP | BPF_CALL: {
+ bool pseudo_call = src_reg == BPF_PSEUDO_CALL;
u8 *ip = image + addrs[i - 1];
func = (u8 *) __bpf_call_base + imm32;
- if (tail_call_reachable) {
+ if (pseudo_call && tail_call_reachable) {
LOAD_TAIL_CALL_CNT_PTR(bpf_prog->aux->stack_depth);
ip += 7;
}
--
2.44.0
