WorkStruct: make allyesconfig

Fix up for make allyesconfig.

Signed-Off-By: David Howells <dhowells@redhat.com>
diff --git a/drivers/infiniband/core/iwcm.c b/drivers/infiniband/core/iwcm.c
index c3fb304..9bfa785 100644
--- a/drivers/infiniband/core/iwcm.c
+++ b/drivers/infiniband/core/iwcm.c
@@ -828,9 +828,10 @@
  * thread asleep on the destroy_comp list vs. an object destroyed
  * here synchronously when the last reference is removed.
  */
-static void cm_work_handler(void *arg)
+static void cm_work_handler(struct work_struct *_work)
 {
-	struct iwcm_work *work = arg, lwork;
+	struct iwcm_work lwork, *work =
+		container_of(_work, struct iwcm_work, work);
 	struct iwcm_id_private *cm_id_priv = work->cm_id;
 	unsigned long flags;
 	int empty;
@@ -899,7 +900,7 @@
 		goto out;
 	}
 
-	INIT_WORK(&work->work, cm_work_handler, work);
+	INIT_WORK(&work->work, cm_work_handler);
 	work->cm_id = cm_id_priv;
 	work->event = *iw_event;