BeagleBone build 3.8.13 kernel with rt_preempt patch: No network, no eth0

I’ve been having problems with i2c and I think that this patch will fix it.
How do I apply this patch to my BBB? I am new to this and would appreciate the help!

In the folder linux-dev, you have the folder patches, you put it there. Then, you need to add the patch in the file