> The Rust Binder driver has been tested on the Android emulator as well as a Google Pixel 6 Pro.

That's a pretty old device at this point. I get that most stuff should work on pretty much all hardware, but given what they said about the importance of this, my expectation would be that Google would shower the Linux team in Pixel devices for testing. Maybe I'm misunderstanding where the Pixel 6 comes in?

The goal is to ensure that the Binder code works not to end to end test a specific phone.

If you have shown it to work properly in an emulator and on an actual phone, it's reasonable to assume that the overall implementation is sound and can be merged to the mainline.

It's not like kernel updates were pushed directly to phones. Manufacturers will now be able to do their own test on their specific model to ensure it works fine.

For what it's worth, here's the relevant section from the patch description:

    Correctness and feature parity
    ------------------------------

    Rust binder passes all tests that validate the correctness of Binder in
    the Android Open Source Project. We can boot a device, and run a variety
    of apps and functionality without issues. We have performed this both on
    the Cuttlefish Android emulator device, and on a Pixel 6 Pro.