Debugging checks and verbose messages

configname: CONFIG_WIREGUARD_DEBUG

Linux Kernel Configuration
└─>Device Drivers
└─>Network device support
└─>Debugging checks and verbose messages
In linux kernel since version 5.1 (release Date: 2019-05-05)  
This will write log messages for handshake and other events
that occur for a WireGuard interface. It will also perform some
extra validation checks and unit tests at various points. This is
only useful for debugging.

Say N here unless you know what you're doing.