From a4714a898e85205e1118ec923cde43d88eb105f6 Mon Sep 17 00:00:00 2001
From: Randy Wright <rwright@hp.com>
Date: Wed, 4 Jun 2014 08:55:59 -0700
Subject: [PATCH] ACPI: Fix bug when ACPI reset register is implemented in
 system memory

Use acpi_os_map_generic_address to pre-map the reset register if it is
memory mapped, thereby preventing the BUG_ON() in line 1319 of
mm/vmalloc.c from triggering during panic-triggered reboots.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=77131
Signed-off-by: Randy Wright <rwright@hp.com>
Signed-off-by: David E. Box <david.e.box@linux.intel.com>
[rjw: Changelog, simplified code]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
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