CONFIG_OPTPROBES (not configurable)

modulename: optprobes.ko

and/or

opt-arm.ko

and/or

opt.ko

configname: CONFIG_OPTPROBES

Linux Kernel Configuration
└─>OPTPROBES
In linux kernel since version 2.6.34 (release Date: 2010-05-16)  
source code:
arch/x86/kernel/kprobes/opt.c
selects

CONFIG_TASKS_RCU