CONFIG_MACH_MACKEREL is not available for thedefaultarchitecture x86.
Result is shown for architecture arm
default or selected kernelversion does not have config value CONFIG_MACH_MACKEREL.
Result is shown for kernelversion 6.5.1
mackerel board
modulename: board-mackerel.ko
configname: CONFIG_MACH_MACKEREL
Linux Kernel Configuration
└─>mackerel board