WorkStruct: make allyesconfig

Fix up for make allyesconfig.

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

drivers/message/i2o/i2o_block.h

@@ -96,7 +96,7 @@ struct i2o_block_request {
 
 /* I2O Block device delayed request */
 struct i2o_block_delayed_request {
-	struct work_struct work;
+	struct delayed_work work;
 	struct request_queue *queue;
 };