---
id: pr-vllm-25984
repo: vllm-project/vllm
pr: 25984
title: '[Spec Decode] Enable efficient speculative decoding with FlashInfer-MLA'
author: benchislett
date: '2025-10-07'
url: https://github.com/vllm-project/vllm/pull/25984
source_category: upstream-code
architectures:
- sm100
- sm90
tags:
- attention
- decode
- mla
techniques: []
hardware_features: []
kernel_types:
- attention
- decode
- mla
languages:
- python
captured_at: '2026-04-27'
status: merged
merge_sha: 3d1f67616da88cbf0033bf5027cc0c6e5e9cacf6
inclusion_reason: kernel file changes
changed_paths:
- vllm/v1/attention/backends/mla/common.py
- vllm/v1/attention/backends/mla/flashinfer_mla.py
- vllm/v1/attention/backends/utils.py
head_ref_oid: 9e2a52b1716ea63b5515781ffd4fc2f19bce6702
artifact_dir: evidence/pull-bundles/vllm/gh-25984
---
# [Spec Decode] Enable efficient speculative decoding with FlashInfer-MLA

- Repository: `vllm-project/vllm`
- PR: [25984](https://github.com/vllm-project/vllm/pull/25984)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `vllm/v1/attention/backends/mla/common.py`
- `vllm/v1/attention/backends/mla/flashinfer_mla.py`
- `vllm/v1/attention/backends/utils.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-25984`
