maintenance-rewrite-kernel-patches: enable parallel patch rewriting

[igorpecovnik]

Wires the recently added parallel patch rewriting feature (lib/tools/common/patching_parallel.py, introduced in 205a36f2) into the rewrite-patches maintenance workflow.

Change

• New dispatch toggle parallel_patches (choice, default yes, with no as an escape hatch if a board misbehaves).
• Passed through as PARALLEL_PATCHES to ./compile.sh … rewrite-kernel-patches|rewrite-uboot-patches. PARALLEL_WORKERS is left unset so the worker count auto-calculates.

Why here, not the configs workflow

You pointed at maintenance-rewrite-kernel-configs.yml, but the feature can't work there. The gate in lib/tools/patching.py is:

parallel_patches = rewrite_patches_in_place and (PARALLEL_PATCHES == "yes")

rewrite_patches_in_place is only true when REWRITE_PATCHES=yes — i.e. the rewrite-kernel-patches / rewrite-uboot-patches commands, which live in this workflow. rewrite-kernel-config never sets it, so PARALLEL_PATCHES would be a no-op in the configs workflow. Both whattodo options here set REWRITE_PATCHES=yes, so the toggle applies to kernel and u-boot patch rewrites alike.

Summary by CodeRabbit

• New Features
  • Added a configurable option to enable parallel patch rewriting during maintenance builds.
  • Maintenance builds can now process eligible patch rewrites concurrently, potentially reducing execution time.
  • Parallel processing applies specifically when patch rewriting is enabled and can be controlled through the workflow configuration.

[coderabbitai]

📝 Walkthrough

Walkthrough

The maintenance workflow adds a parallel_patches dispatch choice and passes its value as PARALLEL_PATCHES to ./compile.sh during kernel patch rewriting.

Changes

Parallel patch rewrite workflow

Layer / File(s)	Summary
Workflow input and compile wiring .github/workflows/maintenance-rewrite-kernel-patches.yml	Adds a yes/no parallel_patches input, defaults it to yes, and passes the selected value to ./compile.sh for rewrite-* commands when REWRITE_PATCHES=yes.

Estimated code review effort: 2 (Simple) | ~10 minutes

Possibly related PRs

• armbian/build#10163: Implements parallel patch rewriting using PARALLEL_PATCHES and worker handling.

Suggested labels: Framework

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly matches the main change: enabling parallel patch rewriting in the maintenance workflow.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch rewrite-patches-parallel

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands.}