Drivers is an unequivocal "yes". Here's an example -- from Google, in fact:
https://github.com/torvalds/linux/commit/e561bc45920aade3f8a...
Architectures is less likely. But the pendulum has swung away from "making your own architecture" anyways.
https://github.com/torvalds/linux/commit/d384d6f43d1ec3f1225...
Drivers is an unequivocal "yes". Here's an example -- from Google, in fact:
https://github.com/torvalds/linux/commit/e561bc45920aade3f8a...
Architectures is less likely. But the pendulum has swung away from "making your own architecture" anyways.