362 	int		is_last;  in write_fifo()  local
380 		is_last = 1;  in write_fifo()
383 		is_last = 1;  in write_fifo()
385 		is_last = 0;  in write_fifo()
391 	if (is_last)  in write_fifo()
393 	return is_last;  in write_fifo()
424 	int		is_last;  in read_fifo()  local
432 		is_last = 0;  in read_fifo()
451 			is_last = 1;  in read_fifo()
460 			is_last = 1;  in read_fifo()
462 			is_last = 0;  in read_fifo()
466 		if (is_last)  in read_fifo()
470 	return is_last;  in read_fifo()