IB: Convert kmem_cache_t -> struct kmem_cache

Signed-off-by: Roland Dreier <rolandd@cisco.com>

drivers/infiniband/hw/amso1100/c2.h

@@ -302,7 +302,7 @@ struct c2_dev {
 	unsigned long pa;	/* PA device memory */
 	void **qptr_array;
 
-	kmem_cache_t *host_msg_cache;
+	struct kmem_cache *host_msg_cache;
 
 	struct list_head cca_link;		/* adapter list */
 	struct list_head eh_wakeup_list;	/* event wakeup list */