This patch mostly cleans up trailing whitespace and long lines, but also 
changes a few printks and gets rid of some unnecessary {} blocks.  Does it 
look ok to you David?  I was thinking it might be nice to abstract it 
slightly more to make the swiotlb functions callable from a platform's 
regular PCI mapping routines as needed, since swiotlb assumes that physical 
addresses and bus addresses are the same.

Thanks,
Jesse