CONFIG_FORCE_DYNAMIC_FTRACE (not configurable)

configname: CONFIG_FORCE_DYNAMIC_FTRACE

Linux Kernel Configuration
└─>FORCE_DYNAMIC_FTRACE
In linux kernel since version 5.1 (release Date: 2019-05-05)  
We keep the static function tracing (!DYNAMIC_FTRACE) around
in order to test the non static function tracing in the
generic code, as other architectures still use it. But we
only need to keep it around for x86_64. No need to keep it
for x86_32. For x86_32, force DYNAMIC_FTRACE.