CONFIG_METAG_ATOMICITY_IRQSOFF is not available for thedefaultarchitecture x86.
Result is shown for architecture metag
default or selected kernelversion does not have config value CONFIG_METAG_ATOMICITY_IRQSOFF.
Result is shown for kernelversion 6.7-rc3

irqsoff

configname: CONFIG_METAG_ATOMICITY_IRQSOFF

Atomicity primitive
└─>irqsoff
In linux kernel since version 3.1 (release Date: 2011-10-24)  
This option disables interrupts to achieve atomicity. This mechanism
is not SMP-safe.

depends
NOT CONFIG_SMP