From: Martin Schwidefsky <schwidefsky@de.ibm.com>

From: Cornelia Huck <cohuck@de.ibm.com>

Common i/o layer changes:
 - Remove bogus defines.
 - Fix length of strncmp on bus id.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>