linux-kernel - [PATCH 3.12 142/181] ACPI: Fix conflict between customized DSDT and DSDT local copy

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Message-Id: <9d8e2c046abf5c0bd9b591c0754bfb43db73e4ef.1404128998.git.jslaby@suse.cz>
Date:	Mon, 30 Jun 2014 13:52:43 +0200
From:	Jiri Slaby <jslaby@...e.cz>
To:	stable@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, Lv Zheng <lv.zheng@...el.com>,
	Enrico Etxe Arte <goitizena.generoa@...il.com>,
	"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
	Jiri Slaby <jslaby@...e.cz>
Subject: [PATCH 3.12 142/181] ACPI: Fix conflict between customized DSDT and DSDT local copy

From: Lv Zheng <lv.zheng@...el.com>

3.12-stable review patch.  If anyone has any objections, please let me know.

===============

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@...il.com>
Signed-off-by: Lv Zheng <lv.zheng@...el.com>
[rjw: Subject]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
Signed-off-by: Jiri Slaby <jslaby@...e.cz>
---
 drivers/acpi/bus.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 7d83ef13186f..17c12ac42b5b 100644
--- 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 dmi_system_id *id)
 	acpi_gbl_copy_dsdt_locally = 1;
 	return 0;
 }
+#endif
 
 static struct dmi_system_id dsdt_dmi_table[] __initdata = {
 	/*
-- 
2.0.0

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