WorkStruct: Typedef the work function prototype

Define a type for the work function prototype.  It's not only kept in the
work_struct struct, it's also passed as an argument to several functions.

This makes it easier to change it.

Signed-Off-By: David Howells <dhowells@redhat.com>

1 files changed, 5 insertions, 4 deletions

diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h
index 9faaccae570e..cef40b22ff9a 100644
--- a/include/linux/workqueue.h
+++ b/include/linux/workqueue.h
@@ -11,10 +11,12 @@
 
 struct workqueue_struct;
 
+typedef void (*work_func_t)(void *data);
+
 struct work_struct {
         unsigned long pending;
         struct list_head entry;
-        void (*func)(void *);
+        work_func_t func;
         void *data;
         void *wq_data;
 };
@@ -91,7 +93,7 @@ extern int FASTCALL(schedule_work(struct work_struct *work));
 extern int FASTCALL(schedule_delayed_work(struct delayed_work *work, unsigned long delay));
 
 extern int schedule_delayed_work_on(int cpu, struct delayed_work *work, unsigned long delay);
-extern int schedule_on_each_cpu(void (*func)(void *info), void *info);
+extern int schedule_on_each_cpu(work_func_t func, void *info);
 extern void flush_scheduled_work(void);
 extern int current_is_keventd(void);
 extern int keventd_up(void);
@@ -100,8 +102,7 @@ extern void init_workqueues(void);
 void cancel_rearming_delayed_work(struct delayed_work *work);
 void cancel_rearming_delayed_workqueue(struct workqueue_struct *,
                                        struct delayed_work *);
-int execute_in_process_context(void (*fn)(void *), void *,
-                               struct execute_work *);
+int execute_in_process_context(work_func_t fn, void *, struct execute_work *);
 
 /*
  * Kill off a pending schedule_delayed_work().  Note that the work callback