Linux Startup: intel_rng: FWH not detected

Every time I boot Linux, one of the startup messages is intel_rng: FWH not detected. Today I fixed it!
The item shows up in /var/log/dmesg as Feb 27 06:28:03 my_computer kernel: [ 15.128000] intel_rng: FWH not detected

It turns out to have a simple explanation, and suggested solution is to 'turn off' the kernel module.
I used sudo gedit /etc/modprobe.d/blacklist to edit the blacklist file as root. I added the following at the bottom of the file:

# prevents minor boot error 'intel_rng: FWH not detected'
blacklist intel_rng

Reboot, and success! The error message is gone.