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path: root/drivers/acpi/acpi_memhotplug.c
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Diffstat (limited to 'drivers/acpi/acpi_memhotplug.c')
-rw-r--r--drivers/acpi/acpi_memhotplug.c31
1 files changed, 24 insertions, 7 deletions
diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c
index b67be85ff0fc..23e2319ead41 100644
--- a/drivers/acpi/acpi_memhotplug.c
+++ b/drivers/acpi/acpi_memhotplug.c
@@ -44,6 +44,13 @@
ACPI_MODULE_NAME("acpi_memhotplug");
+static const struct acpi_device_id memory_device_ids[] = {
+ {ACPI_MEMORY_DEVICE_HID, 0},
+ {"", 0},
+};
+
+#ifdef CONFIG_ACPI_HOTPLUG_MEMORY
+
/* Memory Device States */
#define MEMORY_INVALID_STATE 0
#define MEMORY_POWER_ON_STATE 1
@@ -53,11 +60,6 @@ static int acpi_memory_device_add(struct acpi_device *device,
const struct acpi_device_id *not_used);
static void acpi_memory_device_remove(struct acpi_device *device);
-static const struct acpi_device_id memory_device_ids[] = {
- {ACPI_MEMORY_DEVICE_HID, 0},
- {"", 0},
-};
-
static struct acpi_scan_handler memory_device_handler = {
.ids = memory_device_ids,
.attach = acpi_memory_device_add,
@@ -364,9 +366,11 @@ static bool __initdata acpi_no_memhotplug;
void __init acpi_memory_hotplug_init(void)
{
- if (acpi_no_memhotplug)
+ if (acpi_no_memhotplug) {
+ memory_device_handler.attach = NULL;
+ acpi_scan_add_handler(&memory_device_handler);
return;
-
+ }
acpi_scan_add_handler_with_hotplug(&memory_device_handler, "memory");
}
@@ -376,3 +380,16 @@ static int __init disable_acpi_memory_hotplug(char *str)
return 1;
}
__setup("acpi_no_memhotplug", disable_acpi_memory_hotplug);
+
+#else
+
+static struct acpi_scan_handler memory_device_handler = {
+ .ids = memory_device_ids,
+};
+
+void __init acpi_memory_hotplug_init(void)
+{
+ acpi_scan_add_handler(&memory_device_handler);
+}
+
+#endif /* CONFIG_ACPI_HOTPLUG_MEMORY */