From 34610fc43f43e6e2b294c7b59e900d185b958c11 Mon Sep 17 00:00:00 2001
From: Brett Mastbergen <bmastbergen@ciq.com>
Date: Tue, 12 Aug 2025 16:42:02 -0400
Subject: [PATCH] github actions: Fix upstream commit check for forks

The upstream commit check workflow was failing for pull requests
originating from forked repositories. The previous implementation
incorrectly assumed the pull request branch existed on the base repository.

This commit corrects the workflow to ensure the pull request branch
is checked out from the correct source repository, while the base
branch is fetched from the target repository.
---
 .github/workflows/upstream-commit-check.yml | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/upstream-commit-check.yml b/.github/workflows/upstream-commit-check.yml
index ae25072b95223..e95c4e904f8e4 100644
--- a/.github/workflows/upstream-commit-check.yml
+++ b/.github/workflows/upstream-commit-check.yml
@@ -16,12 +16,14 @@ jobs:
       - name: Checkout PR branch
         uses: actions/checkout@v4
         with:
+          repository: ${{ github.event.pull_request.head.repo.full_name }}
           fetch-depth: 0
           ref: ${{ github.head_ref }}
 
       - name: Checkout base branch
         run: |
-          git fetch origin ${{ github.base_ref }}:${{ github.base_ref }}
+          git remote add base_repo https://github.com/${{ github.repository }}.git
+          git fetch base_repo ${{ github.base_ref }}:${{ github.base_ref }}
 
       - name: Download check_kernel_commits.py
         run: |