kernelconfig_penguin
default or selected kernelversion does not have config value CONFIG_ARCH_SPARSEMEM_ENABLE.
Result is shown for kernelversion 6.0-rc7

CONFIG_ARCH_SPARSEMEM_ENABLE (not configurable)

configname: CONFIG_ARCH_SPARSEMEM_ENABLE

Linux Kernel Configuration
└─> Processor type and features
└─> ARCH_SPARSEMEM_ENABLE