CONFIG_NOP_TRACER (not configurable)

modulename: trace_nop.ko

configname: CONFIG_NOP_TRACER

Linux Kernel Configuration
└─>Kernel hacking
└─>NOP_TRACER
In linux kernel since version 2.6.28 (release Date: 2008-12-24)  
source code:
kernel/trace/trace_nop.c