[Bugfix] Fix DeepSeek MTP (#22934)

Signed-off-by: Benjamin Chislett <benjamin.chislett@centml.ai>

vllm/model_executor/models/deepseek_mtp.py

@@ -158,14 +158,13 @@ class DeepSeekMTP(nn.Module, SupportsPP):
         self,
         input_ids: torch.Tensor,
         positions: torch.Tensor,
-        previous_hidden_states: torch.Tensor,
+        hidden_states: torch.Tensor,
         intermediate_tensors: Optional[IntermediateTensors] = None,
         inputs_embeds: Optional[torch.Tensor] = None,
         spec_step_idx: int = 0,
     ) -> torch.Tensor:
-        hidden_states = self.model(input_ids, positions,
-                                   previous_hidden_states, inputs_embeds,
-                                   spec_step_idx)
+        hidden_states = self.model(input_ids, positions, hidden_states,
+                                   inputs_embeds, spec_step_idx)
         return hidden_states
 
     def compute_logits(
@@ -213,13 +212,15 @@ class DeepSeekMTP(nn.Module, SupportsPP):
                 # for mlp.experts[0].gate_gate_up_proj, which breaks load.
                 if (("mlp.experts." in name) and name not in params_dict):
                     continue
-                name = name.replace(weight_name, param_name)
+                name_mapped = name.replace(weight_name, param_name)
 
                 # QKV fusion is optional, fall back to normal
                 # weight loading if it's not enabled
                 if ((param_name == "fused_qkv_a_proj")
-                        and name not in params_dict):
+                        and name_mapped not in params_dict):
                     continue
+                else:
+                    name = name_mapped
 
                 # Skip loading extra bias for GPTQ models.
                 if name.endswith(".bias") and name not in params_dict:

vllm/model_executor/models/glm4_moe_mtp.py

@@ -180,14 +180,13 @@ class Glm4MoeMTP(nn.Module, SupportsPP):
         self,
         input_ids: torch.Tensor,
         positions: torch.Tensor,
-        previous_hidden_states: torch.Tensor,
+        hidden_states: torch.Tensor,
         intermediate_tensors: Optional[IntermediateTensors] = None,
         inputs_embeds: Optional[torch.Tensor] = None,
         spec_step_idx: int = 0,
     ) -> torch.Tensor:
-        hidden_states = self.model(input_ids, positions,
-                                   previous_hidden_states, inputs_embeds,
-                                   spec_step_idx)
+        hidden_states = self.model(input_ids, positions, hidden_states,
+                                   inputs_embeds, spec_step_idx)
         return hidden_states
 
     def compute_logits(

vllm/model_executor/models/mimo_mtp.py

@@ -164,15 +164,14 @@ class MiMoMTP(nn.Module):
         self,
         input_ids: torch.Tensor,
         positions: torch.Tensor,
-        previous_hidden_states: torch.Tensor,
+        hidden_states: torch.Tensor,
         intermediate_tensors: Optional[IntermediateTensors] = None,
         inputs_embeds: Optional[torch.Tensor] = None,
         spec_step_idx: int = 0,
     ) -> torch.Tensor:
         assert spec_step_idx == 0, "mimo_mtp only support predict one token now"
-        hidden_states = self.model(input_ids, positions,
-                                   previous_hidden_states, inputs_embeds,
-                                   spec_step_idx)
+        hidden_states = self.model(input_ids, positions, hidden_states,
+                                   inputs_embeds, spec_step_idx)
         return hidden_states
 
     def compute_logits(