Where to base my patches on?

Hi, quick question: Greg K-H said[0] that drivers/staging/*/TODO help is appreciated, and that's where I want to start from. I already submitted patches, based on Linus Torvalds master, but I guess this is not really how to do it? So where to base my patches on? I just fetched the branches from Greg K-H, but there are several... should I base my patches upon his master branch from his staging repository on kernel.org[1] or somewhere else? [0]: http://lists.kernelnewbies.org/pipermail/kernelnewbies/2014-April/010391.htm... [1]: https://git.kernel.org/cgit/linux/kernel/git/gregkh/staging.git/ -- Mit freundlichen Grüßen, Kind regards, Matthias Beyer Proudly sent with mutt. Happily signed with gnupg.