---
id: pr-vllm-30399
repo: vllm-project/vllm
pr: 30399
title: '[BugFix] Fix `AttributeError: ''MergedColumnParallelLinear'' object has no attribute ''weight_scale''`'
author: LucasWilkinson
date: '2025-12-10'
url: https://github.com/vllm-project/vllm/pull/30399
source_category: upstream-code
architectures:
- sm100
tags:
- gemm
techniques: []
hardware_features: []
kernel_types:
- gemm
languages:
- python
captured_at: '2026-04-27'
status: merged
merge_sha: aacf0abf8bc219211b888a82f11f028e67b59531
inclusion_reason: kernel file changes
changed_paths:
- vllm/model_executor/warmup/deep_gemm_warmup.py
head_ref_oid: 471d2938c1b09fd416d8b1cfd92bb712fc06c6a5
artifact_dir: evidence/pull-bundles/vllm/gh-30399
---
# [BugFix] Fix `AttributeError: 'MergedColumnParallelLinear' object has no attribute 'weight_scale'`

- Repository: `vllm-project/vllm`
- PR: [30399](https://github.com/vllm-project/vllm/pull/30399)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `vllm/model_executor/warmup/deep_gemm_warmup.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-30399`
