It would be nice to have a line about why it is needed, unfortunately include/linux/serial_core.h is not exactly helpful.
Plus you'll need to sign off the patch. Acked-by: Pavel Machek <pa...@ucw.cz> Thanks, Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html