From 926530b0cf009299e3e10062e9106f8e5c3f5dda Mon Sep 17 00:00:00 2001
From: zhaozx-cn <59479021+zhaozx-cn@users.noreply.github.com>
Date: Thu, 23 Jul 2026 10:24:31 +0800
Subject: [PATCH] [NPU]remove duplicate code (#31863)

---
 .../srt/hardware_backend/npu/attention/ascend_gdn_backend.py    | 2 --
 1 file changed, 2 deletions(-)

diff --git a/python/sglang/srt/hardware_backend/npu/attention/ascend_gdn_backend.py b/python/sglang/srt/hardware_backend/npu/attention/ascend_gdn_backend.py
index 7f506e7f1..7e63f3052 100644
--- a/python/sglang/srt/hardware_backend/npu/attention/ascend_gdn_backend.py
+++ b/python/sglang/srt/hardware_backend/npu/attention/ascend_gdn_backend.py
@@ -323,8 +323,6 @@ class AscendGDNAttnBackend(AscendMambaAttnBackendBase):
                     ssm_states.dtype, copy=False
                 )
                 ssm_states[cache_indices] = last_recurrent_state
-            last_recurrent_state = last_recurrent_state.to(ssm_states.dtype, copy=False)
-            ssm_states[cache_indices] = last_recurrent_state
             if h is not None:
                 self._track_mamba_state_extend(
                     forward_batch, h, ssm_states, forward_metadata