CONFIG_NO_IOPORT is not available for thedefaultarchitecture x86.
Result is shown for architecture tile

CONFIG_NO_IOPORT (not configurable)

configname: CONFIG_NO_IOPORT

Linux Kernel Configuration
└─>Bus options
└─>NO_IOPORT
In linux kernel since version 2.6.21 (release Date: 2007-04-25)