CONFIG_CLKSRC_PROBE (not configurable)

modulename: clksrc-probe.ko

configname: CONFIG_CLKSRC_PROBE

Linux Kernel Configuration
└─>Device Drivers
└─>Clock Source drivers
└─>CLKSRC_PROBE
In linux kernel since version 4.1 (release Date: 2015-06-21)  
source code:
drivers/clocksource/clksrc-probe.c