We had introduced acpi_hotmem_initialized to avoid strange add_memory fail
message. But the memory device may not be used by the kernel, and the
device should be bound when the driver is being loaded. Remove
acpi_hotmem_initialized to allow that the device can be bound when the
driver is being loaded.
CC: David Rientjes <rientjes@xxxxxxxxxx>
CC: Jiang Liu <liuj97@xxxxxxxxx>
CC: Len Brown <len.brown@xxxxxxxxx>
CC: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
CC: Paul Mackerras <paulus@xxxxxxxxx>
CC: Christoph Lameter <cl@xxxxxxxxx>
Cc: Minchan Kim <minchan.kim@xxxxxxxxx>
CC: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
CC: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx>
CC: Yasuaki Ishimatsu <isimatu.yasuaki@xxxxxxxxxxxxxx>
CC: Rafael J. Wysocki <rjw@xxxxxxx>
CC: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
Signed-off-by: Wen Congyang <wency@xxxxxxxxxxxxxx>
---
drivers/acpi/acpi_memhotplug.c | 12 ------------
1 file changed, 12 deletions(-)
diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c
index 1fb1342..8a8716f 100644
--- a/drivers/acpi/acpi_memhotplug.c
+++ b/drivers/acpi/acpi_memhotplug.c
@@ -88,8 +88,6 @@ struct acpi_memory_device {
struct list_head res_list; /* protected by list_lock */
};
-static int acpi_hotmem_initialized;
-
static acpi_status
acpi_memory_get_resource(struct acpi_resource *resource, void *context)
{
@@ -520,15 +518,6 @@ 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);
@@ -644,7 +633,6 @@ static int __init acpi_memory_device_init(void)
return -ENODEV;
}
- acpi_hotmem_initialized = 1;
return 0;
}
--
1.8.0
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