How to patch..

[condor_rl@libero.it]

Hi,

I have just installed the debian kernel source package:

kernel-source-2.6.8

Now, I would like to patch to 2.6.8.1 but I do not know if I need to find a
debian package or I can download the patch-2.6.8.1.bz2 from kernel.org.

Suppose I apply the patch, how can I patch again the 2.6.8.1 to
2.6.8.1-mm4?

To patch the 2.6.8.1 to 2.6.8.1-mm4 should I patch to
2.6.8.1-mm1, 2.6.8.1-mm2, 2.6.8.1-mm3, and at the end the 2.6.8.1-mm4?
Or can I patch the 2.6.8.1 only with the 2.6.8.1-mm4?

Thanks
Lorenzo