Etiquette of submitting patches for fixing coding style.

I watched Kroah-Hartman's video[1] on submitting patches where he walks through the process of fixing coding style. I feel like this would be a good way for me to jump into the process but I need more information. At what point do code style patches stop being more trouble then they're worth to the maintainers? For example, running checkpatch.pl against all files is showing around 3 non-trivial style violations per file. Would a patch fixing 12 violations across 4 files be worth submitting? 1. http://www.youtube.com/watch?v=LLBrBBImJt4