[Bug] Fix AttributeError: 'ColumnParallelLinear' object has no attribute...

[Bug] Fix AttributeError: 'ColumnParallelLinear' object has no attribute `weight_scale_inv` (#30823)
Signed-off-by: yewentao256 <zhyanwentao@126.com>

vllm/model_executor/layers/quantization/utils/fp8_utils.py

@@ -1437,14 +1437,17 @@ def maybe_post_process_fp8_weight_block(layer: torch.nn.Module):
         layer.orig_dtype, layer.weight
     )
     if should_use_deepgemm:
+        scale_attr = (
+            "weight_scale_inv" if hasattr(layer, "weight_scale_inv") else "weight_scale"
+        )
         dg_weight, dg_weight_scale = deepgemm_post_process_fp8_weight_block(
             wq=layer.weight.data,
-            ws=layer.weight_scale_inv.data,
+            ws=getattr(layer, scale_attr).data,
             quant_block_shape=tuple(layer.weight_block_size),
             use_e8m0=is_deep_gemm_e8m0_used(),
         )
         replace_parameter(layer, "weight", dg_weight)
-        replace_parameter(layer, "weight_scale_inv", dg_weight_scale)
+        replace_parameter(layer, scale_attr, dg_weight_scale)
 
 
 def expert_weight_is_col_major(x: torch.Tensor) -> bool: