1 files changed, 19 insertions, 0 deletions
diff --git a/scripts/misc-check b/scripts/misc-check
new file mode 100755
index 000000000000..d40d5484e0c5
--- /dev/null
+++ b/scripts/misc-check
@@ -0,0 +1,19 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0-only
+
+set -e
+
+# Detect files that are tracked but ignored by git. This is checked only when
+# ${KBUILD_EXTRA_WARN} contains 1, git is installed, and the source tree is
+# tracked by git.
+check_tracked_ignored_files () {
+	case "${KBUILD_EXTRA_WARN}" in
+	*1*) ;;
+	*) return;;
+	esac
+
+	git -C ${srctree:-.} ls-files -i -c --exclude-per-directory=.gitignore 2>/dev/null |
+		sed 's/$/: warning: ignored by one of the .gitignore files/' >&2
+}
+
+check_tracked_ignored_files