> AOSP isn't enough, and even if people did submit them there, I would
> be one of the AOSP reviewers asking that they be upstreamed instead.
> ;)

Sure, but it's a way to proving to upstream that the features are useful
and work well. For example, lets say x86 Android adopted the
segmentation-based KERNEXEC/UDEREF. Lets say it actually shipped in the
next version of Android. I am pretty sure Linus would change his
attitude towards it. You're not going to convince him by words rather
than actions though. Not that improving Linux on a dying architecture
should be the priority, but it's a good example.