processor.ko: use kobject_hotplug() to notify user agent

Hi Len,
This is again due to "hotplug_path" getting un-exported from
mm3, this below code which was
depending on hotlpug_path was breaking from compiling. Now using kobject_hotplut() to notify user agenet.
This patch fixes the undefined "hotplug_path" warning.

Please apply this fix.

---

 linux-2.6.10-rc1-mm4-askeshav/drivers/acpi/processor.c |   58
+----------------
 1 files changed, 4 insertions(+), 54 deletions(-)

diff -puN drivers/acpi/processor.c~processor_u1_hotplug_path_fix
drivers/acpi/processor.c
---
linux-2.6.10-rc1-mm4/drivers/acpi/processor.c~processor_u1_hotplug_path_fix 2004-11-10 13:33:38.143298918 -0800 +++ linux-2.6.10-rc1-mm4-askeshav/drivers/acpi/processor.c

2004-11-10 13:33:38.220447354 -0800

drivers/acpi/processor.c renamed from drivers/acpi/processor.c~processor_u1_hotplug_path_fix +0 -50

@@ -2628,56 +2628,6 @@ static struct dmi_system_id __initdata p
 static int is_processor_present(acpi_handle handle);
 
 static int
-processor_run_sbin_hotplug(struct acpi_device *device,
-              int cpu, char *action)
-{
-       char *argv[3], *envp[7], action_str[32], cpu_str[15];
-       int i, ret;
-       int len;
-       char pathname[ACPI_PATHNAME_MAX] = {0};
-       acpi_status status;
-       char *processor_str;
-       struct acpi_buffer buffer = {ACPI_PATHNAME_MAX, pathname};
-
-       ACPI_FUNCTION_TRACE("processor_run_sbin_hotplug");
-
-
-       status = acpi_get_name(device->handle, ACPI_FULL_PATHNAME,
 &buffer);
-       if (ACPI_FAILURE(status)) {
-               return(-ENODEV);
-       }
-
-       len = strlen("PROCESSOR=") + strlen(pathname) + 1;
-       processor_str = kmalloc(len, GFP_KERNEL);
-       if (!processor_str)
-               return(-ENOMEM);
-
-       sprintf(processor_str, "PROCESSOR=%s",pathname);
-       sprintf(action_str, "ACTION=%s", action);
-       sprintf(cpu_str, "CPU=%d", cpu);
-
-       i = 0;
-       argv[i++] = hotplug_path;
-       argv[i++] = "cpu";
-       argv[i] = NULL;
-
-       i = 0;
-       envp[i++] = "HOME=/";
-       envp[i++] = "PATH=/sbin;/bin;/usr/sbin;/usr/bin";
-       envp[i++] = action_str;
-       envp[i++] = processor_str;
-       envp[i++] = cpu_str;
-       envp[i++] = "PLATFORM=ACPI";
-       envp[i] = NULL;
-
-       ret = call_usermodehelper(argv[0], argv, envp, 0);
-
-       kfree(processor_str);
-       return_VALUE(ret);
-}
-
-
-static int
 is_processor_present(
        acpi_handle handle)

{

drivers/acpi/processor.c renamed from drivers/acpi/processor.c~processor_u1_hotplug_path_fix +3 -3

@@ -2726,7 +2676,7 @@ int acpi_processor_device_add(
                return_VALUE(-ENODEV);
 
        if ((pr->id >=0) && (pr->id < NR_CPUS)) {
-               processor_run_sbin_hotplug(*device, pr->id, "add");
+               kobject_hotplug(&(*device)->kobj, KOBJ_ONLINE);
        }
        return_VALUE(0);
 }

@@ -2770,13 +2720,13 @@ acpi_processor_hotplug_notify (
                }
 
                if (pr->id >= 0 && (pr->id < NR_CPUS)) {
-                       processor_run_sbin_hotplug(device, pr->id,
 "remove");
+                       kobject_hotplug(&device->kobj, KOBJ_OFFLINE);
                        break;
                }
 
                result = acpi_processor_start(device);
                if ((!result) && ((pr->id >=0) && (pr->id < NR_CPUS)))
 {
-                       processor_run_sbin_hotplug(device, pr->id,
 "add");
+                       kobject_hotplug(&device->kobj, KOBJ_ONLINE);

} else {
ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
"Device [%s] failed to start\n",

drivers/acpi/processor.c renamed from drivers/acpi/processor.c~processor_u1_hotplug_path_fix +1 -1

@@ -2797,7 +2747,7 @@ acpi_processor_hotplug_notify (
                }
 
                if ((pr->id < NR_CPUS) && (cpu_present(pr->id)))
-                       processor_run_sbin_hotplug(device, pr->id,
 "remove");
+                       kobject_hotplug(&device->kobj, KOBJ_OFFLINE);
                break;
        default:

ACPI_DEBUG_PRINT((ACPI_DB_INFO,
_