[$] The return of the lockdown patches

It's been a year since we looked in on thekernel lockdown patches; that's because things have been fairly quiet onthat front since there was a loud anddiscordant dispute about them back then. But Matthew Garrett has beenposting new versions over the last two months; it would seem that thechanges that have been made might be enough to tamp down the flames and,perhaps, even allow them to be merged into the mainline.