B.A.T.M.A.N. tracing support

configname: CONFIG_BATMAN_ADV_TRACING

Linux Kernel Configuration
└─>Networking support
└─>Networking options
└─>B.A.T.M.A.N. tracing support
In linux kernel since version 4.2 (release Date: 2015-08-30)  
This is an option for use by developers; most people should
say N here. Select this option to gather traces like the debug
messages using the generic tracing infrastructure of the kernel.
BATMAN_ADV_DEBUG must also be selected to get trace events for
batadv_dbg.