Building

# Debian/Ubuntu
sudo apt-get install linux-headers-$(uname -r)
# Fedora
sudo dnf install kernel-devel
# Arch
sudo pacman -S linux-headers
# Gentoo
sudo emerge sys-kernel/linux-headers

# Build
make

Installation

sudo make install
sudo modprobe selftest

Usage

1. Through sysfs:

cat /sys/kernel/selftest/test_results

2. Through debugfs:

cat /sys/kernel/debug/selftest/results

Uninstalling

sudo rmmod selftest