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[GDN] Remove unnecessary conv state clone #13603

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Merged
zhyncs merged 1 commit into from
Nov 20, 2025
Merged

[GDN] Remove unnecessary conv state clone #13603

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6 changes: 2 additions & 4 deletions python/sglang/srt/layers/attention/hybrid_linear_attn_backend.py
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Original file line number Diff line number Diff line change
Expand Up @@ -641,10 +641,8 @@ def forward_extend(
dtype=torch.bool,
device=forward_batch.input_ids.device,
)
conv_states_to_use = conv_states.clone()
else:
has_initial_states = forward_batch.extend_prefix_lens > 0
conv_states_to_use = conv_states

if is_target_verify:
batch_size = seq_len // forward_batch.spec_info.draft_token_num
Expand All @@ -656,7 +654,7 @@ def forward_extend(
)
mixed_qkv_processed = causal_conv1d_update(
mixed_qkv_reshaped,
conv_states_to_use,
conv_states,
conv_weights,
bias,
activation,
Expand All @@ -675,7 +673,7 @@ def forward_extend(
conv_weights,
bias,
activation=activation,
conv_states=conv_states_to_use,
conv_states=conv_states,
has_initial_state=has_initial_states,
cache_indices=cache_indices,
query_start_loc=query_start_loc,
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