diff --git a/vllm/model_executor/model_loader/loader.py b/vllm/model_executor/model_loader/loader.py
index 441dd409b4f9d..37c2d789030b6 100644
--- a/vllm/model_executor/model_loader/loader.py
+++ b/vllm/model_executor/model_loader/loader.py
@@ -28,7 +28,8 @@
                               get_tensor_model_parallel_world_size)
 from vllm.envs import VLLM_USE_MODELSCOPE
 from vllm.logger import init_logger
-from vllm.model_executor.layers.linear import (MergedColumnParallelLinear,
+from vllm.model_executor.layers.linear import (LinearBase,
+                                               MergedColumnParallelLinear,
                                                QKVParallelLinear,
                                                ReplicatedLinear,
                                                RowParallelLinear)
@@ -78,12 +79,14 @@ def device_loading_context(module: torch.nn.Module,
                 original_device: torch.device = original_device_states[name]
                 if original_device.type == "cpu":
                     # `torch.empty_like` does not support `pin_memory` argument
-                    cpu_data = torch.empty_strided(size=p.data.size(),
-                                                   stride=p.data.stride(),
-                                                   dtype=p.data.dtype,
-                                                   layout=p.data.layout,
-                                                   device="cpu",
-                                                   pin_memory=pin_memory)
+                    cpu_data = torch.empty_strided(
+                        size=p.data.size(),
+                        stride=p.data.stride(),
+                        dtype=p.data.dtype,
+                        layout=p.data.layout,
+                        device="cpu",
+                        pin_memory=pin_memory,
+                    )
                     cpu_data.copy_(p.data)
                     p.data = cpu_data
                 else:
@@ -112,7 +115,8 @@ def _initialize_model(vllm_config: VllmConfig, prefix: str = "") -> nn.Module:
     logger.warning(msg)
     logger.warning(
         "Trying to guess the arguments for old-style model class %s",
-        model_class)
+        model_class,
+    )
     # try to be compatible with old-style model class
     kwargs = {}
     if "prefix" in all_params:
@@ -198,14 +202,17 @@ def _maybe_download_from_modelscope(
             return model_path
         return None
 
-    def _prepare_weights(self, model_name_or_path: str,
-                         revision: Optional[str],
-                         fall_back_to_pt: bool) -> Tuple[str, List[str], bool]:
+    def _prepare_weights(
+        self,
+        model_name_or_path: str,
+        revision: Optional[str],
+        fall_back_to_pt: bool,
+    ) -> Tuple[str, List[str], bool]:
         """Prepare weights for the model.
 
         If the model is not local, it will be downloaded."""
-        model_name_or_path = self._maybe_download_from_modelscope(
-            model_name_or_path, revision) or model_name_or_path
+        model_name_or_path = (self._maybe_download_from_modelscope(
+            model_name_or_path, revision) or model_name_or_path)
 
         is_local = os.path.isdir(model_name_or_path)
         load_format = self.load_config.load_format
@@ -258,8 +265,11 @@ def _prepare_weights(self, model_name_or_path: str,
             # any files not found in the index.
             if not is_local:
                 download_safetensors_index_file_from_hf(
-                    model_name_or_path, index_file,
-                    self.load_config.download_dir, revision)
+                    model_name_or_path,
+                    index_file,
+                    self.load_config.download_dir,
+                    revision,
+                )
             hf_weights_files = filter_duplicate_safetensors_files(
                 hf_weights_files, hf_folder, index_file)
         else:
@@ -282,8 +292,11 @@ def _get_weights_iterator(
             # Currently np_cache only support *.bin checkpoints
             assert use_safetensors is False
             weights_iterator = np_cache_weights_iterator(
-                source.model_or_path, self.load_config.download_dir, hf_folder,
-                hf_weights_files)
+                source.model_or_path,
+                self.load_config.download_dir,
+                hf_folder,
+                hf_weights_files,
+            )
         elif use_safetensors:
             weights_iterator = safetensors_weights_iterator(hf_weights_files)
         else:
@@ -310,17 +323,19 @@ def _get_all_weights(
         model_config: ModelConfig,
         model: nn.Module,
     ) -> Generator[Tuple[str, torch.Tensor], None, None]:
-
         primary_weights = DefaultModelLoader.Source(
             model_config.model,
             model_config.revision,
             prefix="",
             fall_back_to_pt=getattr(model, "fall_back_to_pt_during_load",
-                                    True))
+                                    True),
+        )
         yield from self._get_weights_iterator(primary_weights)
 
-        secondary_weights = cast(Iterable[DefaultModelLoader.Source],
-                                 getattr(model, "secondary_weights", ()))
+        secondary_weights = cast(
+            Iterable[DefaultModelLoader.Source],
+            getattr(model, "secondary_weights", ()),
+        )
         for source in secondary_weights:
             yield from self._get_weights_iterator(source)
 
@@ -416,7 +431,7 @@ def _verify_config(self, model_config: ModelConfig,
         self.tensorizer_config.verify_with_parallel_config(parallel_config)
 
     def _get_weights_iterator(
-            self) -> Generator[Tuple[str, torch.Tensor], None, None]:
+        self, ) -> Generator[Tuple[str, torch.Tensor], None, None]:
         tensorizer_args = self.tensorizer_config._construct_tensorizer_args()
         return tensorizer_weights_iterator(tensorizer_args)
 
@@ -479,9 +494,10 @@ def load_model(self, vllm_config: VllmConfig) -> nn.Module:
 
         if parallel_config.tensor_parallel_size > 1:
             from vllm.distributed import get_tensor_model_parallel_rank
-            self.tensorizer_config.tensorizer_uri = \
-                self.tensorizer_config.tensorizer_uri \
-                    % get_tensor_model_parallel_rank()
+
+            self.tensorizer_config.tensorizer_uri = (
+                self.tensorizer_config.tensorizer_uri %
+                get_tensor_model_parallel_rank())
 
         if is_vllm_tensorized(self.tensorizer_config):
             return self._load_model_serialized(vllm_config=vllm_config)
@@ -520,13 +536,13 @@ def __init__(self, load_config: LoadConfig):
 
     @staticmethod
     def _filter_subtensors(
-            tensors: Dict[str, torch.Tensor]) -> Dict[str, torch.Tensor]:
+        tensors: Dict[str, torch.Tensor], ) -> Dict[str, torch.Tensor]:
         """
         Filter out all tensors that share the same memory or a subset of the
         memory of another tensor.
         """
-        same_storage_groups: Dict[Any, List[Tuple[
-            str, torch.Tensor]]] = collections.defaultdict(list)
+        same_storage_groups: Dict[Any, List[Tuple[str, torch.Tensor]]] = (
+            collections.defaultdict(list))
         for key, tensor in tensors.items():
             if tensor.numel():
                 ptr = tensor.untyped_storage().data_ptr()
@@ -615,8 +631,11 @@ def load_model(self, vllm_config: VllmConfig) -> nn.Module:
                         if tensor.shape != param_shape:
                             logger.warning(
                                 "loading tensor of shape %s into "
-                                "parameter '%s' of shape %s", tensor.shape,
-                                key, param_shape)
+                                "parameter '%s' of shape %s",
+                                tensor.shape,
+                                key,
+                                param_shape,
+                            )
                         param_data.copy_(tensor)
                         state_dict.pop(key)
             if state_dict:
@@ -634,6 +653,7 @@ def save_model(
         from safetensors.torch import save_file
 
         from vllm.distributed import get_tensor_model_parallel_rank
+
         if pattern is None:
             pattern = ShardedStateLoader.DEFAULT_PATTERN
         rank = get_tensor_model_parallel_rank()
@@ -667,24 +687,6 @@ class BitsAndBytesModelLoader(BaseModelLoader):
 
     possible_config_file_names = ["adapter_config.json"]
 
-    default_target_modules = [
-        ".gate_proj.",
-        ".down_proj.",
-        ".up_proj.",
-        ".q_proj.",
-        ".k_proj.",
-        ".v_proj.",
-        ".o_proj.",
-        '.fc1.',
-        '.fc2.',
-        '.dense.',
-        '.query_key_value.',
-        '.qkv_proj.',
-        '.dense_h_to_4h.',
-        '.dense_4h_to_h.',
-        '.out_proj.',
-    ]
-
     def __init__(self, load_config: LoadConfig):
         super().__init__(load_config)
 
@@ -709,6 +711,11 @@ def __init__(self, load_config: LoadConfig):
         with open(config_file_path) as f:
             config = json.load(f)
             self.target_modules = config["target_modules"]
+            # TODO: target_modules could be either a list or a regex string.
+            # We need to handle both cases.
+            assert isinstance(self.target_modules,
+                              list), "Unsupported target_modules: "
+            f"{self.target_modules}"
 
     def _get_config_file(self, qlora_adapter: str) -> str:
         is_local = os.path.isdir(qlora_adapter)
@@ -734,12 +741,13 @@ def _get_config_file(self, qlora_adapter: str) -> str:
         return config_file_path
 
     def _get_weight_files(
-            self,
-            model_name_or_path: str,
-            allowed_patterns: List[str],
-            revision: Optional[str] = None) -> Tuple[List[str], str]:
-        """Retrieve weight files. Download the files if necessary. 
-        
+        self,
+        model_name_or_path: str,
+        allowed_patterns: List[str],
+        revision: Optional[str] = None,
+    ) -> Tuple[List[str], str]:
+        """Retrieve weight files. Download the files if necessary.
+
         Return the weight files and the file pattern."""
         is_local = os.path.isdir(model_name_or_path)
 
@@ -806,6 +814,7 @@ def _get_quantized_weights_iterator(
         # only load the bitsandbytes module when needed
         try:
             import bitsandbytes
+
             if bitsandbytes.__version__ < "0.44.0":
                 raise ImportError("bitsandbytes version is wrong. Please "
                                   "install bitsandbytes>=0.44.0.")
@@ -839,8 +848,11 @@ def _is_8bit_weight_name(self, weight_name: str):
 
     def _is_4bit_weight_name(self, weight_name: str):
         quantized_suffix = {
-            "absmax", "quant_map", "nested_absmax", "nested_quant_map",
-            "bitsandbytes"
+            "absmax",
+            "quant_map",
+            "nested_absmax",
+            "nested_quant_map",
+            "bitsandbytes",
         }
         suffix = weight_name.split(".")[-1]
         return any(q_suffix in suffix for q_suffix in quantized_suffix)
@@ -857,7 +869,6 @@ def _quantized_8bit_generator(self, hf_weights_files, use_safetensors,
 
         for weight_name, weight_tensor in self._hf_weight_iter(
                 hf_weights_files, use_safetensors):
-
             if self._is_8bit_weight_name(weight_name):
                 continue
 
@@ -899,14 +910,13 @@ def _parse_quant_state(param_name: str,
         # pre quantized weights would have a quant_state
         for weight_name, weight_tensor in self._hf_weight_iter(
                 hf_weights_files, use_safetensors):
-
             if self._is_4bit_weight_name(weight_name):
                 continue
 
-            if (f"{weight_name}.quant_state.bitsandbytes__nf4" \
-                    in temp_state_dict) or \
-            (f"{weight_name}.quant_state.bitsandbytes__fp4" \
-                    in temp_state_dict):
+            if (f"{weight_name}.quant_state.bitsandbytes__nf4"
+                    in temp_state_dict) or (
+                        f"{weight_name}.quant_state.bitsandbytes__fp4"
+                        in temp_state_dict):
                 quant_state = _parse_quant_state(weight_name, temp_state_dict)
                 quant_state_dict[weight_name] = quant_state
                 yield weight_name, weight_tensor
@@ -916,12 +926,12 @@ def _parse_quant_state(param_name: str,
     def _unquantized_generator(self, hf_weights_files, use_safetensors,
                                quant_state_dict) -> Generator:
         from bitsandbytes.functional import quantize_4bit
+
         tp_size = get_tensor_model_parallel_world_size()
         tp_rank = get_tensor_model_parallel_rank()
 
         for weight_name, weight_tensor in self._hf_weight_iter(
                 hf_weights_files, use_safetensors):
-
             if any(target_module in weight_name for target_module in
                    self.target_modules) and weight_name.endswith(".weight"):
                 # Without sharding
@@ -954,12 +964,11 @@ def _unquantized_generator(self, hf_weights_files, use_safetensors,
                     # get the start/end index of each shard weight tensor
                     total_start_index = list(
                         itertools.accumulate([0] + total_shard_sizes))[:-1]
-                    shard_weights_index = [
-                        (idx + size // tp_size * tp_rank,
-                         idx + size // tp_size * (tp_rank + 1))
-                        for idx, size in zip(total_start_index,
-                                             total_shard_sizes)
-                    ]
+                    shard_weights_index = [(
+                        idx + size // tp_size * tp_rank,
+                        idx + size // tp_size * (tp_rank + 1),
+                    ) for idx, size in zip(total_start_index,
+                                           total_shard_sizes)]
                     # slice and reorder the weight tensor
                     weight_tensor = [
                         weight_tensor[start_index:end_index, ...]
@@ -989,7 +998,8 @@ def _unquantized_generator(self, hf_weights_files, use_safetensors,
                     processed_weight, quant_state = quantize_4bit(
                         loaded_weight,
                         compress_statistics=True,
-                        quant_type="nf4")
+                        quant_type="nf4",
+                    )
 
                 quant_state_dict[weight_name] = quant_state
             else:
@@ -997,28 +1007,58 @@ def _unquantized_generator(self, hf_weights_files, use_safetensors,
 
             yield weight_name, processed_weight
 
+    def _get_bnb_target_modules(self, model: nn.Module) -> None:
+
+        # TODO: Maybe we can replace bitsandbytes_stacked_params_mapping with
+        # packed_modules_mapping.
+        inverse_stacked_mapping: Dict[str, List[str]] = {}
+        for orig, (
+                packed,
+                idx,
+        ) in model.bitsandbytes_stacked_params_mapping.items():
+            if packed not in inverse_stacked_mapping:
+                inverse_stacked_mapping[packed] = []
+            inverse_stacked_mapping[packed].insert(idx, orig)
+
+        linear_module_lst = []
+        for name, module in model.named_modules():
+            if isinstance(module, (LinearBase, )):
+                last_name = name.split(".")[-1]
+                if sub_modules := inverse_stacked_mapping.get(last_name, []):
+                    # Map vllm's names to transformers' names.
+                    for sub_name in sub_modules:
+                        linear_module_lst.append(
+                            name.replace(last_name, sub_name))
+                else:
+                    linear_module_lst.append(name)
+        if self.target_modules:
+            # Update self.target_modules
+            self.target_modules = [
+                qual_name for qual_name in linear_module_lst
+                if any(t in qual_name for t in self.target_modules)
+            ]
+        else:
+            self.target_modules = linear_module_lst
+        assert (self.target_modules
+                ), "vllm currently does not support BNB quantization for"
+        f" {type(model).__name__}"
+
     def _load_weights(self, model_config: ModelConfig,
                       model: nn.Module) -> None:
-        if not hasattr(model, 'load_weights'):
+        if not hasattr(model, "load_weights"):
             raise AttributeError(
                 "The required method 'load_weights' is not defined in class"
                 f" {type(model).__name__}.")
 
-        if not hasattr(model, 'bitsandbytes_stacked_params_mapping'):
+        if not hasattr(model, "bitsandbytes_stacked_params_mapping"):
             raise AttributeError(
                 f"Model {type(model).__name__} does not support BitsAndBytes "
                 "quantization yet.")
 
-        if len(self.target_modules) == 0:
-            if hasattr(model, 'default_bitsandbytes_target_modules'):
-                self.target_modules = model.default_bitsandbytes_target_modules
-            else:
-                self.target_modules = self.default_target_modules
-
         # Modules whose weights might have fused on disk
         # we need their output_sizes to make shard in flight correctly with TP
         self.maybe_fused_weights_modules: Dict[str, List[int]] = {}
-
+        self._get_bnb_target_modules(model)
         for name, module in model.named_modules():
             # Some modules like `ReplicatedLinear` should not have their weights
             # sharded. The reason for implementing it this way is to avoid new
@@ -1046,7 +1086,7 @@ def _load_weights(self, model_config: ModelConfig,
 
         pre_quant = False
         if quant_config is not None:
-            quant_method = quant_config.get('quant_method')
+            quant_method = quant_config.get("quant_method")
             if quant_method == "bitsandbytes":
                 pre_quant = True
             else:
@@ -1063,11 +1103,12 @@ def _load_weights(self, model_config: ModelConfig,
 
         load_8bit = False
         if pre_quant:
-            load_8bit = quant_config.get('load_in_8bit', False)
+            load_8bit = quant_config.get("load_in_8bit", False)
 
-        qweight_iterator, quant_state_dict = \
-            self._get_quantized_weights_iterator(
-            model_config.model, model_config.revision, pre_quant, load_8bit)
+        qweight_iterator, quant_state_dict = (
+            self._get_quantized_weights_iterator(model_config.model,
+                                                 model_config.revision,
+                                                 pre_quant, load_8bit))
 
         model.load_weights(qweight_iterator)
 
@@ -1078,6 +1119,7 @@ def _load_weights(self, model_config: ModelConfig,
         # TODO: Change this lazy import to normal import
         # after the checks are updated to run on a new version
         from vllm.model_executor.models.utils import is_pp_missing_parameter
+
         for quant_param_name in quant_state_dict:
             if is_pp_missing_parameter(quant_param_name, model):
                 continue
@@ -1086,9 +1128,9 @@ def _load_weights(self, model_config: ModelConfig,
 
             shard_index = 0
             for shard_name, (
-                    weight_name, index
+                    weight_name,
+                    index,
             ) in model.bitsandbytes_stacked_params_mapping.items():
-
                 shard_pos = quant_param_name.find(shard_name)
                 # Some models, such as MiniCPM V2.5/2.6, contain both
                 # module names 'kv_proj' and 'qkv_proj'. To prevent 'kv_proj'
@@ -1123,8 +1165,8 @@ def _load_weights(self, model_config: ModelConfig,
 
                 num_elements = [0] * len(quant_states)
                 for seq, quant_state in quant_states.items():
-                    num_elements[seq] = math.prod(
-                        quant_state.shape) // pack_ratio
+                    num_elements[seq] = (math.prod(quant_state.shape) //
+                                         pack_ratio)
 
                 offsets = np.concatenate(([0], np.cumsum(num_elements)))
                 set_weight_attrs(param, {"bnb_shard_offsets": offsets})
diff --git a/vllm/model_executor/models/baichuan.py b/vllm/model_executor/models/baichuan.py
index 39cb5a8b2cbbe..5e68b7f165bf4 100644
--- a/vllm/model_executor/models/baichuan.py
+++ b/vllm/model_executor/models/baichuan.py
@@ -351,14 +351,6 @@ class BaiChuanBaseForCausalLM(nn.Module, SupportsLoRA, SupportsPP):
     embedding_padding_modules = []
 
     # BitandBytes specific attributes
-    default_bitsandbytes_target_modules = [
-        ".W_pack.",
-        ".o_proj.",
-        ".down_proj.",
-        ".up_proj.",
-        ".gate_proj.",
-        ".up_proj.",
-    ]
     bitsandbytes_stacked_params_mapping = {
         # shard_name, weight_name, index
         "gate_proj": ("gate_up_proj", 0),
diff --git a/vllm/model_executor/models/falcon.py b/vllm/model_executor/models/falcon.py
index 096ad32b38e86..8660cf79b9cdb 100644
--- a/vllm/model_executor/models/falcon.py
+++ b/vllm/model_executor/models/falcon.py
@@ -412,12 +412,6 @@ class FalconForCausalLM(nn.Module, SupportsPP):
 
     # BitandBytes specific attributes
     bitsandbytes_stacked_params_mapping = {}
-    default_bitsandbytes_target_modules = [
-        ".query_key_value.",
-        ".dense.",
-        ".dense_h_to_4h.",
-        ".dense_4h_to_h.",
-    ]
 
     def __init__(self, *, vllm_config: VllmConfig, prefix: str = ""):
         super().__init__()
diff --git a/vllm/model_executor/models/gemma.py b/vllm/model_executor/models/gemma.py
index 131e9af139c2a..b28715c48adfb 100644
--- a/vllm/model_executor/models/gemma.py
+++ b/vllm/model_executor/models/gemma.py
@@ -350,15 +350,6 @@ class GemmaForCausalLM(nn.Module, SupportsLoRA, SupportsPP):
         "down_proj",
     ]
     # BitandBytes specific attributes
-    default_bitsandbytes_target_modules = [
-        ".gate_proj.",
-        ".down_proj.",
-        ".up_proj.",
-        ".q_proj.",
-        ".k_proj.",
-        ".v_proj.",
-        ".o_proj.",
-    ]
     bitsandbytes_stacked_params_mapping = {
         # shard_name, weight_name, index
         "q_proj": ("qkv_proj", 0),
diff --git a/vllm/model_executor/models/gemma2.py b/vllm/model_executor/models/gemma2.py
index d229eb74669ee..c93223c740272 100644
--- a/vllm/model_executor/models/gemma2.py
+++ b/vllm/model_executor/models/gemma2.py
@@ -386,15 +386,6 @@ class Gemma2ForCausalLM(nn.Module, SupportsLoRA, SupportsPP):
     embedding_padding_modules = []
 
     # BitandBytes specific attributes
-    default_bitsandbytes_target_modules = [
-        ".gate_proj.",
-        ".down_proj.",
-        ".up_proj.",
-        ".q_proj.",
-        ".k_proj.",
-        ".v_proj.",
-        ".o_proj.",
-    ]
     bitsandbytes_stacked_params_mapping = {
         # shard_name, weight_name, index
         "q_proj": ("qkv_proj", 0),
diff --git a/vllm/model_executor/models/idefics3.py b/vllm/model_executor/models/idefics3.py
index 58f7635275c05..014e27bc869d4 100644
--- a/vllm/model_executor/models/idefics3.py
+++ b/vllm/model_executor/models/idefics3.py
@@ -656,21 +656,6 @@ class Idefics3ForConditionalGeneration(nn.Module, SupportsMultiModal,
     ]
 
     # BitandBytes specific attributes
-    default_bitsandbytes_target_modules = [
-        ".gate_proj.",
-        ".down_proj.",
-        ".up_proj.",
-        ".q_proj.",
-        ".k_proj.",
-        ".v_proj.",
-        ".o_proj.",
-        # vision_model
-        ".fc1.",
-        ".fc2.",
-        ".out_proj.",
-        # connector
-        ".proj.",
-    ]
     bitsandbytes_stacked_params_mapping = {
         # shard_name, weight_name, index
         "q_proj": ("qkv_proj", 0),
diff --git a/vllm/model_executor/models/llama.py b/vllm/model_executor/models/llama.py
index 355b2f3ef8b28..7cc5547b4a4d5 100644
--- a/vllm/model_executor/models/llama.py
+++ b/vllm/model_executor/models/llama.py
@@ -463,15 +463,6 @@ class LlamaForCausalLM(nn.Module, SupportsLoRA, SupportsPP):
     embedding_padding_modules = ["lm_head"]
 
     # BitandBytes specific attributes
-    default_bitsandbytes_target_modules = [
-        ".gate_proj.",
-        ".down_proj.",
-        ".up_proj.",
-        ".q_proj.",
-        ".k_proj.",
-        ".v_proj.",
-        ".o_proj.",
-    ]
     bitsandbytes_stacked_params_mapping = {
         # shard_name, weight_name, index
         "q_proj": ("qkv_proj", 0),
diff --git a/vllm/model_executor/models/minicpmv.py b/vllm/model_executor/models/minicpmv.py
index 99bf1d42d0355..aacce477e0460 100644
--- a/vllm/model_executor/models/minicpmv.py
+++ b/vllm/model_executor/models/minicpmv.py
@@ -822,25 +822,6 @@ class MiniCPMV2_5(MiniCPMVBaseModel, SupportsLoRA):
     ]
 
     # BitandBytes specific attributes
-    default_bitsandbytes_target_modules = [
-        ".gate_proj.",
-        ".down_proj.",
-        ".up_proj.",
-        ".q_proj.",
-        ".k_proj.",
-        ".v_proj.",
-        ".o_proj.",
-        # vision encoder
-        ".fc1.",
-        ".fc2.",
-        # Currently, vllm does not support BNB quantization for the `out_proj`
-        # of the resampler, so it's necessary to distinguish between the
-        # vision encoder and the resampler's out_proj. The same applies to
-        # MiniCPMV2_6.
-        ".self_attn.out_proj.",  #  vision encoder out_proj
-        # resampler
-        ".kv_proj.",
-    ]
     bitsandbytes_stacked_params_mapping = {
         # shard_name, weight_name, index
         "q_proj": ("qkv_proj", 0),
@@ -964,21 +945,6 @@ class MiniCPMV2_6(MiniCPMVBaseModel, SupportsLoRA):
     ]
 
     # BitandBytes specific attributes
-    default_bitsandbytes_target_modules = [
-        ".gate_proj.",
-        ".down_proj.",
-        ".up_proj.",
-        ".q_proj.",
-        ".k_proj.",
-        ".v_proj.",
-        ".o_proj.",
-        # vision encoder
-        ".fc1.",
-        ".fc2.",
-        ".self_attn.out_proj.",
-        # resampler
-        ".kv_proj.",
-    ]
     bitsandbytes_stacked_params_mapping = {
         # shard_name, weight_name, index
         "q_proj": ("qkv_proj", 0),
diff --git a/vllm/model_executor/models/mllama.py b/vllm/model_executor/models/mllama.py
index 9e6634a9a7579..6536f9807730c 100644
--- a/vllm/model_executor/models/mllama.py
+++ b/vllm/model_executor/models/mllama.py
@@ -1104,20 +1104,6 @@ def forward(
 @INPUT_REGISTRY.register_input_processor(input_processor_for_mllama)
 class MllamaForConditionalGeneration(nn.Module, SupportsMultiModal):
     # BitandBytes specific attributes
-    default_bitsandbytes_target_modules = [
-        ".gate_proj.",
-        ".down_proj.",
-        ".up_proj.",
-        ".q_proj.",
-        ".k_proj.",
-        ".v_proj.",
-        ".o_proj.",
-        ".fc1.",
-        ".fc2.",
-        # The `multi_modal_projector` is at the top level of the model,
-        # so we can't add a dot in front of it.
-        "multi_modal_projector."
-    ]
     bitsandbytes_stacked_params_mapping = {
         # shard_name, weight_name, index
         "q_proj": ("qkv_proj", 0),
diff --git a/vllm/model_executor/models/opt.py b/vllm/model_executor/models/opt.py
index db85a494980a7..7edafcd20b5db 100644
--- a/vllm/model_executor/models/opt.py
+++ b/vllm/model_executor/models/opt.py
@@ -337,9 +337,6 @@ class OPTForCausalLM(nn.Module, SupportsPP):
         "k_proj": ("qkv_proj", 1),
         "v_proj": ("qkv_proj", 2),
     }
-    default_bitsandbytes_target_modules = [
-        ".q_proj.", ".k_proj.", ".v_proj.", ".out_proj.", ".fc1.", ".fc2."
-    ]
 
     def __init__(self, *, vllm_config: VllmConfig, prefix: str = ""):
         super().__init__()
diff --git a/vllm/model_executor/models/phi.py b/vllm/model_executor/models/phi.py
index 998d3723a0d7d..f9e972688ddd1 100644
--- a/vllm/model_executor/models/phi.py
+++ b/vllm/model_executor/models/phi.py
@@ -286,9 +286,6 @@ class PhiForCausalLM(nn.Module, SupportsLoRA, SupportsPP):
         "k_proj": ("qkv_proj", 1),
         "v_proj": ("qkv_proj", 2),
     }
-    default_bitsandbytes_target_modules = [
-        ".q_proj.", ".k_proj.", ".v_proj.", ".fc1.", ".fc2.", ".dense."
-    ]
 
     embedding_modules = {}
     embedding_padding_modules = []
diff --git a/vllm/model_executor/models/phi3.py b/vllm/model_executor/models/phi3.py
index 54158bc141235..937858ee3b8c2 100644
--- a/vllm/model_executor/models/phi3.py
+++ b/vllm/model_executor/models/phi3.py
@@ -16,11 +16,5 @@ class Phi3ForCausalLM(LlamaForCausalLM):
     }
 
     # BitandBytes specific attributes
-    default_bitsandbytes_target_modules = [
-        ".gate_up_proj.",
-        ".down_proj.",
-        ".qkv_proj.",
-        ".o_proj.",
-    ]
     # Initialize an empty dict when there is no stacked parameter mapping.
     bitsandbytes_stacked_params_mapping = {}
diff --git a/vllm/model_executor/models/qwen.py b/vllm/model_executor/models/qwen.py
index 8f001200308fe..63d1374ab4092 100644
--- a/vllm/model_executor/models/qwen.py
+++ b/vllm/model_executor/models/qwen.py
@@ -1028,12 +1028,7 @@ class QWenLLM(QWenBaseModel):
     embedding_modules = {}
     embedding_padding_modules = []
 
-    default_bitsandbytes_target_modules = [
-        ".c_attn.",
-        ".c_proj.",
-        ".w1.",
-        ".w2.",
-    ]
+    # BitandBytes specific attributes
     bitsandbytes_stacked_params_mapping = {
         # shard_name, weight_name, index
         "w2": ("gate_up_proj", 0),
diff --git a/vllm/model_executor/models/qwen2.py b/vllm/model_executor/models/qwen2.py
index 46640226d4cf8..9f706610a129a 100644
--- a/vllm/model_executor/models/qwen2.py
+++ b/vllm/model_executor/models/qwen2.py
@@ -419,15 +419,6 @@ class Qwen2ForCausalLM(nn.Module, SupportsLoRA, SupportsPP):
     embedding_padding_modules = []
 
     # BitandBytes specific attributes
-    default_bitsandbytes_target_modules = [
-        ".gate_proj.",
-        ".down_proj.",
-        ".up_proj.",
-        ".q_proj.",
-        ".k_proj.",
-        ".v_proj.",
-        ".o_proj.",
-    ]
     bitsandbytes_stacked_params_mapping = {
         # shard_name, weight_name, index
         "q_proj": ("qkv_proj", 0),