default or selected kernelversion does not have config value CONFIG_HAVE_FUNCTION_GRAPH_FP_TEST.
Result is shown for kernelversion 6.5.1

CONFIG_HAVE_FUNCTION_GRAPH_FP_TEST (not configurable)

configname: CONFIG_HAVE_FUNCTION_GRAPH_FP_TEST

Linux Kernel Configuration
└─>HAVE_FUNCTION_GRAPH_FP_TEST
In linux kernel since version 2.6.31 (release Date: 2009-09-09)  
See