KUnit test bitfield functions at runtime

modulename: bitfield_kunit.ko

configname: CONFIG_BITFIELD_KUNIT

Linux Kernel Configuration
└─>Kernel hacking
└─>Kernel Testing and Coverage
└─>Runtime Testing
└─>KUnit - Enable support for unit tests
└─>KUnit test bitfield functions at runtime
In linux kernel since version 5.1 (release Date: 2019-05-05)  
Enable this option to test the bitfield functions at boot.

KUnit tests run during boot and output the results to the debug log
in TAP format (http://testanything.org/). Only useful for kernel devs
running the KUnit test harness, and not intended for inclusion into a
production build.

For more information on KUnit and unit tests in general please refer
to the KUnit documentation in
source code: