Yep. Implementation looks simple enough that, if it is a drop-in replacement, should be up-streamed. Curious to know if there are any known caveats? Otherwise

Yep. Implementation looks simple enough that, if it is a drop-in replacement, should be up-streamed. Curious to know if there are any known caveats? Otherwise, go for it. May seem daunting, but it's not. I've submitted a couple of proposals and patches; pretty happy with the process.