default or selected kernelversion does not have config value CONFIG_BLK_DEV_IDEDMA_SFF.
Result is shown for kernelversion 6.9.9

CONFIG_BLK_DEV_IDEDMA_SFF (not configurable)

configname: CONFIG_BLK_DEV_IDEDMA_SFF

Linux Kernel Configuration
└─>Device Drivers
└─>ATA/ATAPI/MFM/RLL support (DEPRECATED)
└─>BLK_DEV_IDEDMA_SFF
In linux kernel since version 2.6.25 (release Date: 2008-04-16)