CONFIG_32BIT is not available for thedefaultarchitecture x86.
Result is shown for architecture mips
32-bit kernel
modulename: ioremap.ko
and/orscall32-o32.ko
configname: CONFIG_32BIT
Kernel code model
└─>32-bit kernel
In linux kernel since version 2.6.14 (release Date: 2005-10-27)
Select this option if you want to build a 32-bit kernel.