default or selected kernelversion does not have config value CONFIG_PROVE_LOCKING_SMALL.
Result is shown for kernelversion 6.4.14

CONFIG_PROVE_LOCKING_SMALL (not configurable)

configname: CONFIG_PROVE_LOCKING_SMALL

Linux Kernel Configuration
└─>Lock Debugging (spinlocks, mutexes, etc...)
└─>PROVE_LOCKING_SMALL
In linux kernel since version 4.1 (release Date: 2015-06-21)