---
id: pr-vllm-31171
repo: vllm-project/vllm
pr: 31171
title: '[perf] Integrate flashinfer concat_mla_k'
author: jiahanc
date: '2026-02-05'
url: https://github.com/vllm-project/vllm/pull/31171
source_category: upstream-code
architectures:
- sm100
tags:
- attention
- mla
techniques: []
hardware_features: []
kernel_types:
- attention
- mla
languages:
- python
captured_at: '2026-04-27'
status: merged
merge_sha: 59a5cb387ae4c11c73855d505adb0b2c7cd3861d
inclusion_reason: kernel file changes
changed_paths:
- vllm/model_executor/layers/attention/mla_attention.py
- vllm/utils/flashinfer.py
head_ref_oid: 7cffaadeb4d63120634b7ebfc84ae390d22b71b8
artifact_dir: evidence/pull-bundles/vllm/gh-31171
---
# [perf] Integrate flashinfer concat_mla_k

- Repository: `vllm-project/vllm`
- PR: [31171](https://github.com/vllm-project/vllm/pull/31171)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `vllm/model_executor/layers/attention/mla_attention.py`
- `vllm/utils/flashinfer.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-31171`
