[chore] Clean up redundant lora_weight_names concept to simplify code (#9131)

python/sglang/srt/lora/utils.py

@@ -84,7 +84,7 @@ def get_hidden_dim(
             raise NotImplementedError()
 
 
-def get_normalized_lora_weight_names(
+def get_normalized_target_modules(
     target_modules: Iterable[str],
 ) -> set[str]:
     """
@@ -100,8 +100,8 @@ def get_normalized_lora_weight_names(
 
     result = set()
     for name in target_modules:
-        weight_name = params_mapping.get(name, name)
-        result.add(weight_name)
+        normalized_name = params_mapping.get(name, name)
+        result.add(normalized_name)
     return result
 
 
@@ -116,20 +116,18 @@ def get_stacked_multiply(module_name: str) -> int:
     return stacked_rank[module_name] if module_name in stacked_rank else 1
 
 
-def get_weight_name(
-    target_name: str, lora_weight_names: Tuple[Set[str]]
-) -> Optional[str]:
+def get_target_module_name(full_module_name: str, target_modules: Set[str]) -> str:
     """
-    Get the weight name in lora_weight_names that can match target_name.
+    Get the target module name in target_modules that can match full_module_name.
 
-    If there is a weight name in lora_weight_names that can match target_name, return this name
+    If there is a target module name in target_modules that can match full_module_name, return this name
     Else raise ValueError.
     """
-    for weight_name in lora_weight_names:
-        if weight_name in target_name:
-            return weight_name
+    for target_module in target_modules:
+        if target_module in full_module_name:
+            return target_module
     raise ValueError(
-        f"Cannot find weight name for {target_name} in {lora_weight_names}"
+        f"Cannot find target module name for {full_module_name} in {target_modules}"
     )