tools/syz-covermerger: move problems logging closer to the guilty code

2 files changed, 5 insertions, 5 deletions

diff --git a/pkg/covermerger/covermerger.go b/pkg/covermerger/covermerger.go
index 506d870b0..da4baef8f 100644
--- a/pkg/covermerger/covermerger.go
+++ b/pkg/covermerger/covermerger.go
@@ -67,7 +67,6 @@ func (fr FileRecord) HitCount() (int, error) {
 type MergeResult struct {
 	HitCounts  map[int]int
 	FileExists bool
-	LostFrames map[RepoBranchCommit]int64
 }
 
 type FileCoverageMerger interface {
diff --git a/pkg/covermerger/file_line_merger.go b/pkg/covermerger/file_line_merger.go
index b53509df5..04b437130 100644
--- a/pkg/covermerger/file_line_merger.go
+++ b/pkg/covermerger/file_line_merger.go
@@ -3,6 +3,8 @@
 
 package covermerger
 
+import "github.com/google/syzkaller/pkg/log"
+
 func makeFileLineCoverMerger(
 	fvs fileVersions, base RepoBranchCommit) FileCoverageMerger {
 	baseFile := ""
@@ -51,13 +53,12 @@ func (a *FileLineCoverMerger) AddRecord(rbc RepoBranchCommit, f *Frame, hitCount
 }
 
 func (a *FileLineCoverMerger) Result() *MergeResult {
-	lostFrames := a.lostFrames
-	if len(lostFrames) == 0 {
-		lostFrames = nil
+	for rbc, lostFrames := range a.lostFrames {
+		log.Logf(1, "\t[warn] lost %d frames from rbc(%s, %s, %s)",
+			lostFrames, rbc.Repo, rbc.Branch, rbc.Commit)
 	}
 	return &MergeResult{
 		HitCounts:  a.hitCounts,
 		FileExists: true,
-		LostFrames: lostFrames,
 	}
 }