int size_exponent;
 
                /**
-                * @ptr_lock: Locks reads and writes to all head/tail state
+                * @oa_buffer.ptr_lock: Locks reads and writes to all
+                * head/tail state
                 *
                 * Consider: the head and tail pointer state needs to be read
                 * consistently from a hrtimer callback (atomic context) and
                spinlock_t ptr_lock;
 
                /**
-                * @head: Although we can always read back the head pointer register,
+                * @oa_buffer.head: Although we can always read back
+                * the head pointer register,
                 * we prefer to avoid trusting the HW state, just to avoid any
                 * risk that some hardware condition could * somehow bump the
                 * head pointer unpredictably and cause us to forward the wrong
                u32 head;
 
                /**
-                * @tail: The last verified tail that can be read by userspace.
+                * @oa_buffer.tail: The last verified tail that can be
+                * read by userspace.
                 */
                u32 tail;
        } oa_buffer;