default or selected kernelversion does not have config value CONFIG_KSYM_TRACER.
Result is shown for kernelversion 5.4.229

Trace read and write access on kernel memory locations

modulename: trace_ksym.ko

configname: CONFIG_KSYM_TRACER

Linux Kernel Configuration
└─>Tracers
└─>Trace read and write access on kernel memory locations
In linux kernel since version 2.6.33 (release Date: 2010-02-24)  
This tracer helps find read and write operations on any given kernel
symbol i.e. /proc/kallsyms.

source code: