Kernel prepatch 6.16-rc2

Linus Torvalds has released 6.16-rc2,
which is 'admittedly
even smaller than usual', though rc2 is not uncommonly one of the smaller
release candidates.

It may be that people are taking a breather after a fairly sizable
merge window, but it might also be seasonal, with Europe starting to
see summer vacations... We'll see how this goes.

The diffstat looks somewhat unusual, with a lot of one-liners with
both ARC and pincontrol having (presumably independently) ended up
doing some unrelated trivial cleanups.

But even that is probably noticeable only because everything else is
pretty small. That 'everything else' is mostly network drivers (and
bluetooth) and bcachefs, with some rust infrastructure and core
networking changes thrown in.