default or selected kernelversion does not have config value CONFIG_GENERIC_STRNLEN_USER.
Result is shown for kernelversion 6.9-rc5
CONFIG_GENERIC_STRNLEN_USER (not configurable)
modulename: strnlen_user.ko
configname: CONFIG_GENERIC_STRNLEN_USER
Linux Kernel Configuration
└─>Library routines
└─>GENERIC_STRNLEN_USER