Help needed for kernel module

I have this ctf.o kernel module (closed-source kernel module for cut-through-forwarding) but as I understand, it has to be compiled to a .ko extension to be inserted into the kernel using insmod.
Can someone give me some instructions?

(I can attach the file if needed)

Some data that might help:
Router: Asus RT-AC66u B1 (running on OpenWRT latest version for the AC68U as they are compatible)
Target Platform: bcm53xx/generic
Processor : BCM4708

You cannot use a pre-compiled (proprietary) kernel driver like that. You'd have to run it on the kernel it was built for. Broadcom doesn't release source code AFAIK.

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