I don\'t have a local code copy/etc, I just want to download a single specific git commit so I can view it. I have the url for the git repository:
git://git.kernel.o
In this case, if all you want is the diff, you can download it from the web frontend for the kernel repo at this url:
http://git.kernel.org/?p=linux/kernel/git/davem/net-2.6.git;a=commitdiff_plain;h=ee9c5cfad29c8a13199962614b9b16f1c4137ac9
You can play with the url to get other commits.