pkg/aflow/flow/patching: find maintainers for patches

Provide base kernel repo/commit and recipients (to/cc) for patches.

1 files changed, 0 insertions, 61 deletions

diff --git a/pkg/aflow/flow/patching/base_commit.go b/pkg/aflow/flow/patching/base_commit.go
deleted file mode 100644
index 9ae848aec..000000000
--- a/pkg/aflow/flow/patching/base_commit.go
+++ /dev/null
@@ -1,61 +0,0 @@
-// Copyright 2025 syzkaller project authors. All rights reserved.
-// Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file.
-
-package patching
-
-import (
-	"github.com/google/syzkaller/pkg/aflow"
-	"github.com/google/syzkaller/pkg/aflow/action/kernel"
-	"github.com/google/syzkaller/pkg/vcs"
-)
-
-var baseCommitPicker = aflow.NewFuncAction("base-commit-picker", pickBaseCommit)
-
-type baseCommitArgs struct {
-	// Can be used to override the selected base commit (for manual testing).
-	FixedBaseCommit string
-	FixedRepository string
-}
-
-type baseCommitResult struct {
-	KernelRepo   string
-	KernelCommit string
-}
-
-func pickBaseCommit(ctx *aflow.Context, args baseCommitArgs) (baseCommitResult, error) {
-	// Currently we use the latest RC of the mainline tree as the base.
-	// This is a reasonable choice overall in lots of cases, and it enables good caching
-	// of all artifacts (we need to rebuild them only approx every week).
-	// Potentially we can use subsystem trees for few important, well-maintained subsystems
-	// (mm, net, etc). However, it will work poorly for all subsystems. First, there is no
-	// machine-usable mapping of subsystems to repo/branch; second, lots of them are poorly
-	// maintained (can be much older than latest RC); third, it will make artifact caching
-	// much worse.
-	// In the future we ought to support automated rebasing of patches to requested trees/commits.
-	// We need it anyway, but it will also alleviate imperfect base commit picking.
-	const (
-		baseRepo   = "git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git"
-		baseBranch = "master"
-	)
-
-	res := baseCommitResult{
-		KernelRepo:   baseRepo,
-		KernelCommit: args.FixedBaseCommit,
-	}
-	if args.FixedRepository != "" {
-		res.KernelRepo = args.FixedRepository
-	}
-	if args.FixedBaseCommit != "" {
-		return res, nil
-	}
-
-	err := kernel.UseLinuxRepo(ctx, func(_ string, repo vcs.Repo) error {
-		head, err := repo.Poll(baseRepo, baseBranch)
-		if err != nil {
-			return err
-		}
-		res.KernelCommit, err = repo.ReleaseTag(head.Hash)
-		return err
-	})
-	return res, err
-}