Need help making sense of IRQ API

Hello, I've been trying to make sense of how the kernel (on an i386) calls __do_IRQ() from do_IRQ() for the past few days to no avail. After doing some research I found out that do_IRQ() calls the corresponding "highlevel irq-events handler", this lead me to believe that the kernel calls

Need help making sense of IRQ API

Hello, I've been trying to make sense of how the kernel (on an i386) calls __do_IRQ() from do_IRQ() for the past few days to no avail. After doing some research I found out that do_IRQ() calls the corresponding highlevel irq-events handler, this lead me to believe that the kernel calls __do_IRQ