From f8c9bfe461bb2923ae5d070f1ec0fb312825caad Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Mon, 31 Dec 2012 00:05:33 +0000
Subject: [PATCH] ACPICA: Add root node optimization to internal get namespace
 node function.

Detect a request for the root node (a lone backslash) up front
before invoking a full namespace lookup.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
Reading git-format-patch failed