Add support in reg_val_propagate_range() for BPF_TAIL_CALL, fixing many
kernel log WARNINGs ("Unhandled BPF_JMP case") seen during JIT testing.
Treat BPF_TAIL_CALL like a NOP, falling through as if the tail call failed.
Fixes: b6bd53f9c4e8 ("MIPS: Add missing file for eBPF JIT.")
Signed-off-by: Tony Ambardar <Tony.Ambardar@xxxxxxxxx>
---
arch/mips/net/ebpf_jit.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/mips/net/ebpf_jit.c b/arch/mips/net/ebpf_jit.c
index 939dd06764bc..ed47a10d533f 100644
--- a/arch/mips/net/ebpf_jit.c
+++ b/arch/mips/net/ebpf_jit.c
@@ -1714,6 +1714,9 @@ static int reg_val_propagate_range(struct jit_ctx *ctx, u64 initial_rvt,
for (reg = BPF_REG_0; reg <= BPF_REG_5; reg++)
set_reg_val_type(&exit_rvt, reg, REG_64BIT);
+ rvt[idx] |= RVT_DONE;
+ break;
+ case BPF_TAIL_CALL:
rvt[idx] |= RVT_DONE;
break;
default:
--
2.25.1
