CONFIG_ISA_DMA_API is not available for the selected architecture x86.
Result is shown for architecture parisc

CONFIG_ISA_DMA_API (not configurable)

modulename: dma.ko

and/or

i8237.ko

configname: CONFIG_ISA_DMA_API

Linux Kernel Configuration
└─>ISA_DMA_API
In linux kernel since version 2.6.12 )