CONFIG_HAVE_ARCH_NODEDATA_EXTENSION is not available for thedefaultarchitecture x86.
Result is shown for architecture ia64
CONFIG_HAVE_ARCH_NODEDATA_EXTENSION (not configurable)
configname: CONFIG_HAVE_ARCH_NODEDATA_EXTENSION
Linux Kernel Configuration
└─>Processor type and features
└─>HAVE_ARCH_NODEDATA_EXTENSION