Sysfsutils needs to be removed from the tree - dead upstream and broken. linux-misc-apps should get rid of it when the time comes. See bug 377673 and bug 377691.
*** Bug 377691 has been marked as a duplicate of this bug. ***
Apparently usbip was dropped from linux-misc-apps and a notice placed in the ebuild:
elog "The usbip utility is maintained separately at net-misc/usbip"
However there is no net-misc/usbip package since ssuominen punted it a year ago.
I added the usbip package to the tree again now.