In case someone is using kernel 4.11: I tried it and everything seems fine, except that the linux logo on the boot screen (i.e. tty1) is gone. It was there before (with 4.10.9), and I used make oldconfig.
So, anyone with the same experience? Note that I'm talking about the vanilla kernel from kernel.org, off portage (hence the OT in the title). thanks Jorge Almeida