Hi Greg,

After merging the tty tree, today's linux-next build (x86_64 allmodconfig)
failed like this:

ERROR: "isdn_tty_revision" [drivers/isdn/i4l/isdn.ko] undefined!

Presumably caused by commit 1ca6711ec001 ("ISDN: i4l, remove cvs crap").
That variable is still referenced in drivers/isdn/i4l/isdn_common.c.  Grep
is your friend.

I have used the tty tree from next-20120405 for today.
-- 
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au