Kernel prepatch 7.3-rc6

Next week might look a bit different: we've got the annual maintainer summit and the Linux plumbers conference going on , so I'll be on the road, as will a number of other maintainers.

That may or may not end up changing the stats for -rc7. But it's unlikely to affect the release schedule, although the fact that I have my yearly family vacation the week after that might make the next merge window a bit wonky.