CONFIG_XTENSA_MX (not configurable)
modulename: irq-xtensa-mx.ko
configname: CONFIG_XTENSA_MX
Linux Kernel Configuration
└─>Device Drivers
└─>XTENSA_MX
In linux kernel since version 3.10 (release Date: 2013-06-30)
source code:
selects
CONFIG_IRQ_DOMAIN&
CONFIG_GENERIC_IRQ_EFFECTIVE_AFF_MASK