applying patch to the linux kernel

[malakar.subhendu]

I'm using 12.04 since the day of its launch (because it was LTS). It always gets heated pretty much and the normal temperature is around 60 degrees. I managed by using a cooler for this overheating which brought it to around 50 degrees. But now my cooler has damaged and i'm back to the 60-65 degrees. Searching in the net i found this link which told me to apply some patches form the lkml site.
http://www.phoronix.com/scan.php?page=article&item=linux_aspm_solution


the lkml link is:
https://lkml.org/lkml/2011/11/11/178

Now i want to apply those patches. but i don't have the linux 3.2 source with the OS. How to apply those patches and build the kernel from the source in the existing pc.

[ibjsb4]

Those links are over a year old. I wonder with the 3.5 kernel now being offered for 12o4, if it now has this modification.

[malakar.subhendu]

Those links are over a year old. I wonder with the 3.5 kernel now being offered for 12o4, if it now has this modification.
kernel.org states that the latest version is 3.7.2.
How to apply that?