Kernel prepatch 4.1-rc1

The 4.1-rc1 prepatch is out. Linus says:"No earth-shattering new features come to mind, even if initialsupport for ACPI on arm64 looks funny. Depending on what you care about,your notion of 'big new feature' may differ from mine, of course. There's alot of work all over, and some of it might just make a big difference toyour use cases." What he doesn't mention is that, in the end, kdbuswas not merged for this development cycle.