--- /dev/null
+From 73577d1df8e1f31f6b1a5eebcdbc334eb0330e47 Mon Sep 17 00:00:00 2001
+From: Lv Zheng <lv.zheng@intel.com>
+Date: Mon, 12 May 2014 15:50:16 +0800
+Subject: ACPI: Fix conflict between customized DSDT and DSDT local copy
+
+From: Lv Zheng <lv.zheng@intel.com>
+
+commit 73577d1df8e1f31f6b1a5eebcdbc334eb0330e47 upstream.
+
+This patch fixes the following issue:
+If DSDT is customized, no local DSDT copy is needed.
+
+References: https://bugzilla.kernel.org/show_bug.cgi?id=69711
+Signed-off-by: Enrico Etxe Arte <goitizena.generoa@gmail.com>
+Signed-off-by: Lv Zheng <lv.zheng@intel.com>
+[rjw: Subject]
+Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ drivers/acpi/bus.c | 7 +++++++
+ 1 file changed, 7 insertions(+)
+
+--- a/drivers/acpi/bus.c
++++ b/drivers/acpi/bus.c
+@@ -57,6 +57,12 @@ EXPORT_SYMBOL(acpi_root_dir);
+
+
+ #ifdef CONFIG_X86
++#ifdef CONFIG_ACPI_CUSTOM_DSDT
++static inline int set_copy_dsdt(const struct dmi_system_id *id)
++{
++ return 0;
++}
++#else
+ static int set_copy_dsdt(const struct dmi_system_id *id)
+ {
+ printk(KERN_NOTICE "%s detected - "
+@@ -64,6 +70,7 @@ static int set_copy_dsdt(const struct dm
+ acpi_gbl_copy_dsdt_locally = 1;
+ return 0;
+ }
++#endif
+
+ static struct dmi_system_id dsdt_dmi_table[] __initdata = {
+ /*