Device Tree Runtime self tests

modulename: of_selftest.ko

configname: CONFIG_OF_SELFTEST

Linux Kernel Configuration
└─>Device Drivers
└─>Device Tree and Open Firmware support
└─>Device Tree Runtime self tests
In linux kernel since version 3.1 (release Date: 2011-10-24)  
This option builds in test cases for the device tree infrastructure
that are executed once at boot time, and the results dumped to the
console.

If unsure, say N here, but this option is safe to enable.

source code: