---
id: pr-vllm-20324
repo: vllm-project/vllm
pr: 20324
title: '[Kernel][Bugfix] Fixup some warnings in nvfp4_blockwise_moe when CUDA < 12.8'
author: tlrmchlsmth
date: '2025-07-02'
url: https://github.com/vllm-project/vllm/pull/20324
source_category: upstream-code
architectures:
- sm100
tags:
- fp4
- moe
- nvfp4
- quantization
techniques: []
hardware_features:
- fp4
- nvfp4
kernel_types:
- moe
- quantization
languages:
- cuda-cpp
captured_at: '2026-04-27'
status: merged
merge_sha: 3be8d312a216727dd3624afa92984dab6e170274
inclusion_reason: kernel file changes
changed_paths:
- csrc/quantization/fp4/nvfp4_blockwise_moe_kernel.cu
head_ref_oid: 5cb904f97b3413efa2ff4fb8d4324ff229a6635f
artifact_dir: evidence/pull-bundles/vllm/gh-20324
---
# [Kernel][Bugfix] Fixup some warnings in nvfp4_blockwise_moe when CUDA < 12.8

- Repository: `vllm-project/vllm`
- PR: [20324](https://github.com/vllm-project/vllm/pull/20324)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `csrc/quantization/fp4/nvfp4_blockwise_moe_kernel.cu`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-20324`
