Kernel prepatch 6.8-rc7

So we finally have a week where things have calmed down, and in fact 6.8-rc7 is smaller than usual at this point in time. So if that keeps up (but that's a fairly notable "if") I won't feel like I need to do an rc8 this release after all.

So no guarantees, but assuming no bad surprises, we'll have the final 6.8 next weekend.