CONFIG_BCM7120_L2_IRQ (not configurable)

modulename: irq-bcm7120-l2.ko

configname: CONFIG_BCM7120_L2_IRQ

Linux Kernel Configuration
└─>Device Drivers
└─>IRQ chip support
└─>BCM7120_L2_IRQ
In linux kernel since version 3.10 (release Date: 2013-06-30)  
source code:
drivers/irqchip/irq-bcm7120-l2.c
selects
CONFIG_GENERIC_IRQ_CHIP
CONFIG_IRQ_DOMAIN