Release Vulpes OS 2.7-preview.24

tundra/tools/kernel_cmdline.py

@@ -0,0 +1,22 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: MPL-2.0
+"""Small helpers for keeping inherited Android boot flags out of Vulpes."""
+
+
+def remove_parameters(cmdline, names):
+    """Return (cleaned_cmdline, removed_tokens) for exact kernel parameter names."""
+    names = set(names)
+    kept = []
+    removed = []
+    for token in cmdline.split():
+        if token.split('=', 1)[0] in names:
+            removed.append(token)
+        else:
+            kept.append(token)
+    return ' '.join(kept), removed
+
+
+def vulpes_cmdline(cmdline):
+    # This Qualcomm cpuidle parameter disables every selectable low-power
+    # level. It is inherited from Android and must not disable Vulpes CPU idle.
+    return remove_parameters(cmdline, {'lpm_levels.sleep_disabled'})