ACPI: simplify deferred execution path

We had two functions, acpi_os_execute_deferred() and
acpi_os_execute_hp_deferred() that differed only in that the
latter did acpi_os_wait_events_complete(NULL) before executing
the deferred function.

This patch consolidates those two functions and uses a flag in
the struct acpi_os_dpc to determine whether to do the wait.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>

diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index c5b4f1e..d753206 100644 (file)
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -58,6 +58,7 @@ struct acpi_os_dpc {
        acpi_osd_exec_callback function;
        void *context;
        struct work_struct work;
+       int wait;
 };
 
 #ifdef CONFIG_ACPI_CUSTOM_DSDT
@@ -703,21 +704,8 @@ static void acpi_os_execute_deferred(struct work_struct *work)
                return;
        }
 
-       dpc->function(dpc->context);
-       kfree(dpc);
-
-       return;
-}
-
-static void acpi_os_execute_hp_deferred(struct work_struct *work)
-{
-       struct acpi_os_dpc *dpc = container_of(work, struct acpi_os_dpc, work);
-       if (!dpc) {
-               printk(KERN_ERR PREFIX "Invalid (NULL) context\n");
-               return;
-       }
-
-       acpi_os_wait_events_complete(NULL);
+       if (dpc->wait)
+               acpi_os_wait_events_complete(NULL);
 
        dpc->function(dpc->context);
        kfree(dpc);
@@ -746,7 +734,6 @@ static acpi_status __acpi_os_execute(acpi_execute_type type,
        acpi_status status = AE_OK;
        struct acpi_os_dpc *dpc;
        struct workqueue_struct *queue;
-       work_func_t func;
        int ret;
        ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
                          "Scheduling function [%p(%p)] for deferred execution.\n",
@@ -779,8 +766,8 @@ static acpi_status __acpi_os_execute(acpi_execute_type type,
         */
        queue = hp ? kacpi_hotplug_wq :
                (type == OSL_NOTIFY_HANDLER ? kacpi_notify_wq : kacpid_wq);
-       func = hp ? acpi_os_execute_hp_deferred : acpi_os_execute_deferred;
-       INIT_WORK(&dpc->work, func);
+       dpc->wait = hp ? 1 : 0;
+       INIT_WORK(&dpc->work, acpi_os_execute_deferred);
        ret = queue_work(queue, &dpc->work);
 
        if (!ret) {