emerged sys-linux/calculate-sources 6.16.5, reboot, fine
The “emerge @module-rebuild” after reboot errors because of this rtl8814au module
GitHub - morrownr/8814au: Linux Driver for USB WiFi Adapters that are based on the RTL8814AU Chipset (upstream source) states:
Notice: A new standards compliant (mac80211), in-kernel driver for rtl8814au chipset based adapters and modules has been merged into Linux kernel 6.16. If your distro uses kernel 6.16 or later, there is no need to install this driver.
I attempted to use /etc/portage/package.mask to stop @module-rebuild attempting to build this module, but that causes yet another error.
Incidentally kernel 6.16 is working very well, I just don’t like updates to end in an error.