CONFIG_HAVE_FUNCTION_TRACE_MCOUNT_TEST (not configurable)

configname: CONFIG_HAVE_FUNCTION_TRACE_MCOUNT_TEST

Linux Kernel Configuration
└─>HAVE_FUNCTION_TRACE_MCOUNT_TEST
In linux kernel since version 2.6.29 (release Date: 2009-03-23)  
This gets selected when the arch tests the function_trace_stop
variable at the mcount call site. Otherwise, this variable
is tested by the called function.