On 2015年02月25日 08:36, al.st...@linaro.org wrote:
From: Al Stone <al.st...@linaro.org>

In order to deprecate the use of _OSI for arm64 or other new architectures,
we need to make the default handler something we can change for various
platforms.  This patch moves the definition of acpi_osi_handler() -- the
function used by ACPICA as a callback for evaluating _OSI -- into a separate
file.  Subsequent patches will change which files get built so that we can
then build the version of _OSI we need for a particular architecture.

There is no functional change.

Signed-off-by: Al Stone <al.st...@linaro.org>
---
  drivers/acpi/Makefile |  2 +-
  drivers/acpi/osi.c    | 95 +++++++++++++++++++++++++++++++++++++++++++++++++++
  drivers/acpi/osl.c    | 24 -------------
  include/linux/acpi.h  |  1 +
  4 files changed, 97 insertions(+), 25 deletions(-)
  create mode 100644 drivers/acpi/osi.c

diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile
index 13536d8..97191eb 100644
--- a/drivers/acpi/Makefile
+++ b/drivers/acpi/Makefile
@@ -18,7 +18,7 @@ obj-y                         += acpi.o \
                                        acpica/

  # All the builtin files are in the "acpi." module_param namespace.
-acpi-y                         += osl.o utils.o reboot.o
+acpi-y                         += osl.o utils.o reboot.o osi.o
  acpi-y                                += nvs.o

  # Power management related files
diff --git a/drivers/acpi/osi.c b/drivers/acpi/osi.c
new file mode 100644
index 0000000..f23aa70
--- /dev/null
+++ b/drivers/acpi/osi.c
@@ -0,0 +1,95 @@
+/*
+ *  osi.c - _OSI implementation (moved from drivers/acpi/osl.c)
+ *
+ *  Copyright (C) 2000       Andrew Henroid
+ *  Copyright (C) 2001, 2002 Andy Grover <andrew.gro...@intel.com>
+ *  Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenba...@intel.com>
+ *  Copyright (c) 2008 Intel Corporation
+ *   Author: Matthew Wilcox <wi...@linux.intel.com>
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ */
+
+#include <linux/acpi.h>
+
+#define _COMPONENT             ACPI_OS_SERVICES
+ACPI_MODULE_NAME("osi");
+
+#define PREFIX                 "ACPI: "

Hi Al, remove PREFIX here and use pr_fmt() instead as
I mentioned in previous patch :)

Thanks
Hanjun
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