On Thu, 2022-03-17 at 14:33 -0700, Kees Cook wrote: > I think of "Ack" to mean "I am a maintainer of this area and someone > can > carry this instead of it going via my tree". While I certainly poke > and > ptrace and x86 a lot, I probably wouldn't Ack in this part of the > kernel. But it does seem "Reviewed-by" is a stronger signal[1]. I thought I remembered reading in some kernel docs somewhere to demote reviewed-by's to acks if anything changed, so some credit goes in for the past work on it. Cannot find anything now, thanks for the clarification.