ACPI: memory hotplug: remove .start() method

This patch folds the .start() method into .add().

The .start() method is called in two paths: boot-time device enumeration
and run-time node addition, currently via container_device_add().  In both
cases, .start() is called immediately after .add(), so there's no reason
to make them separate methods.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Reviewed-by: Alex Chiang <achiang@hp.com>
CC: Yasunori Goto <y-goto@jp.fujitsu.com>
CC: Dave Hansen <haveblue@us.ibm.com>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 14 insertions, 26 deletions

diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c
index 7a0f4aa4fa1e..a8d9d8fac5d4 100644
--- a/drivers/acpi/acpi_memhotplug.c
+++ b/drivers/acpi/acpi_memhotplug.c
@@ -50,7 +50,6 @@ MODULE_LICENSE("GPL");
 
 static int acpi_memory_device_add(struct acpi_device *device);
 static int acpi_memory_device_remove(struct acpi_device *device, int type);
-static int acpi_memory_device_start(struct acpi_device *device);
 
 static const struct acpi_device_id memory_device_ids[] = {
         {ACPI_MEMORY_DEVICE_HID, 0},
@@ -65,7 +64,6 @@ static struct acpi_driver acpi_memory_device_driver = {
         .ops = {
                 .add = acpi_memory_device_add,
                 .remove = acpi_memory_device_remove,
-                .start = acpi_memory_device_start,
                 },
 };
 
@@ -415,28 +413,6 @@ static int acpi_memory_device_add(struct acpi_device *device)
 
         printk(KERN_DEBUG "%s \n", acpi_device_name(device));
 
-        return result;
-}
-
-static int acpi_memory_device_remove(struct acpi_device *device, int type)
-{
-        struct acpi_memory_device *mem_device = NULL;
-
-
-        if (!device || !acpi_driver_data(device))
-                return -EINVAL;
-
-        mem_device = acpi_driver_data(device);
-        kfree(mem_device);
-
-        return 0;
-}
-
-static int acpi_memory_device_start (struct acpi_device *device)
-{
-        struct acpi_memory_device *mem_device;
-        int result = 0;
-
         /*
          * Early boot code has recognized memory area by EFI/E820.
          * If DSDT shows these memory devices on boot, hotplug is not necessary
@@ -446,8 +422,6 @@ static int acpi_memory_device_start (struct acpi_device *device)
         if (!acpi_hotmem_initialized)
                 return 0;
 
-        mem_device = acpi_driver_data(device);
-
         if (!acpi_memory_check_device(mem_device)) {
                 /* call add_memory func */
                 result = acpi_memory_enable_device(mem_device);
@@ -458,6 +432,20 @@ static int acpi_memory_device_start (struct acpi_device *device)
         return result;
 }
 
+static int acpi_memory_device_remove(struct acpi_device *device, int type)
+{
+        struct acpi_memory_device *mem_device = NULL;
+
+
+        if (!device || !acpi_driver_data(device))
+                return -EINVAL;
+
+        mem_device = acpi_driver_data(device);
+        kfree(mem_device);
+
+        return 0;
+}
+
 /*
  * Helper function to check for memory device
  */