default or selected kernelversion does not have config value CONFIG_HAVE_GENERIC_GUP.
Result is shown for kernelversion 6.9.9

CONFIG_HAVE_GENERIC_GUP (not configurable)

configname: CONFIG_HAVE_GENERIC_GUP

Linux Kernel Configuration
└─>HAVE_GENERIC_GUP
In linux kernel since version 4.2 (release Date: 2015-08-30)