From 8251a74d5faa90a4907ec91db348ec2b475fba0a Mon Sep 17 00:00:00 2001 From: Baizhou Zhang Date: Wed, 21 Jan 2026 14:34:40 +0800 Subject: [PATCH] [Tiny] Backward compatibility for fp4 gemm flags (#17466) --- python/sglang/srt/layers/quantization/fp4_utils.py | 2 ++ 1 file changed, 2 insertions(+) diff --git a/python/sglang/srt/layers/quantization/fp4_utils.py b/python/sglang/srt/layers/quantization/fp4_utils.py index bd021bb74..a40074770 100644 --- a/python/sglang/srt/layers/quantization/fp4_utils.py +++ b/python/sglang/srt/layers/quantization/fp4_utils.py @@ -65,6 +65,8 @@ def initialize_fp4_gemm_config(server_args: ServerArgs) -> None: "SGLANG_FLASHINFER_FP4_GEMM_BACKEND is deprecated. " f"Please use '--fp4-gemm-backend={env_backend}' instead." ) + if not env_backend.startswith("flashinfer_"): + env_backend = "flashinfer_" + env_backend backend = env_backend else: logger.warning(