On 2/25/19 9:40 PM, Pingfan Liu wrote: >> This doesn't get used until patch 6 as far as I can tell. Was there a >> reason to define it here? >> > Yes, it gets used until patch 6. Patch 6 has two groups of > pre-requirements [1-2] and [3-5]. Do you think reorder the patches and > moving [3-5] ahead of [1-2] is a better choice? I'd rather that you just introduce the code along with its first user.