linux-kernel - [PATCH 6/8] bind the memory device when the driver is being loaded

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Message-ID: <4FE97F34.9090209@cn.fujitsu.com>
Date:	Tue, 26 Jun 2012 17:21:56 +0800
From:	Wen Congyang <wency@...fujitsu.com>
To:	lenb@...nel.org, linux-acpi@...r.kernel.org,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC:	Yasuaki ISIMATU <isimatu.yasuaki@...fujitsu.com>
Subject: [PATCH 6/8] bind the memory device when the driver is being loaded

We introduce acpi_hotmem_initialized to avoid strange add_memory fail message.
The stranged add_memory fail message is printed in register_memory_resource().
We have removed this message in the previous patch, so we can remove
it(it is very useful to the next patch).

Signed-off-by: Wen Congyang <wency@...fujitsu.com>
---
 drivers/acpi/acpi_memhotplug.c |   12 ------------
 1 files changed, 0 insertions(+), 12 deletions(-)

diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c
index 2e5d5ab..148c88a 100644
--- a/drivers/acpi/acpi_memhotplug.c
+++ b/drivers/acpi/acpi_memhotplug.c
@@ -87,8 +87,6 @@ struct acpi_memory_device {
 	struct list_head res_list;
 };
 
-static int acpi_hotmem_initialized;
-
 static acpi_status
 acpi_memory_get_resource(struct acpi_resource *resource, void *context)
 {
@@ -463,15 +461,6 @@ static int acpi_memory_device_add(struct acpi_device *device)
 
 	printk(KERN_DEBUG "%s \n", acpi_device_name(device));
 
-	/*
-	 * Early boot code has recognized memory area by EFI/E820.
-	 * If DSDT shows these memory devices on boot, hotplug is not necessary
-	 * for them. So, it just returns until completion of this driver's
-	 * start up.
-	 */
-	if (!acpi_hotmem_initialized)
-		return 0;
-
 	if (!acpi_memory_check_device(mem_device)) {
 		/* call add_memory func */
 		result = acpi_memory_enable_device(mem_device);
@@ -578,7 +567,6 @@ static int __init acpi_memory_device_init(void)
 		return -ENODEV;
 	}
 
-	acpi_hotmem_initialized = 1;
 	return 0;
 }
 
-- 
1.7.1

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