---
id: pr-vllm-11981
repo: vllm-project/vllm
pr: 11981
title: '[Platform] Add output for Attention Backend'
author: wangxiyuan
date: '2025-01-14'
url: https://github.com/vllm-project/vllm/pull/11981
source_category: upstream-code
architectures:
- sm100
tags: []
techniques: []
hardware_features: []
kernel_types: []
languages: []
captured_at: '2026-05-16'
status: merged
merge_sha: 2e0e0176104965c9c8c090609f331f9b70e492f3
inclusion_reason: defer
changed_paths:
- vllm/attention/backends/abstract.py
- vllm/attention/backends/flash_attn.py
- vllm/attention/layer.py
- vllm/v1/attention/backends/flash_attn.py
artifact_dir: evidence/pull-bundles/vllm/gh-11981
head_ref_oid: a50f429461367765b33b18b495f8386a9e0069f6
---
# [Platform] Add output for Attention Backend

- Repository: `vllm-project/vllm`
- PR: [11981](https://github.com/vllm-project/vllm/pull/11981)
- Decision: `defer`
- Reason: defer

## Changed Paths

- `vllm/attention/backends/abstract.py`
- `vllm/attention/backends/flash_attn.py`
- `vllm/attention/layer.py`
- `vllm/v1/attention/backends/flash_attn.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-11981`
