On Wed, May 5, 2021 at 2:19 AM Jiri Slaby <jslaby@xxxxxxx> wrote: > > The only user of tty_ops::chars_in_buffer is tty_chars_in_buffer. And it > considers tty_ops::chars_in_buffer optional. In case it's NULL, zero is > returned. So remove all those chars_in_buffer from tty_ops which return > zero. (Zero means such driver doesn't buffer.) > > Signed-off-by: Jiri Slaby <jslaby@xxxxxxx> > c: Richard Henderson <rth@xxxxxxxxxxx> > Cc: Ivan Kokshaysky <ink@xxxxxxxxxxxxxxxxxxxx> > Cc: Matt Turner <mattst88@xxxxxxxxx> > Cc: "James E.J. Bottomley" <James.Bottomley@xxxxxxxxxxxxxxxxxxxxx> > Cc: Helge Deller <deller@xxxxxx> > Cc: Chris Zankel <chris@xxxxxxxxxx> > Cc: Max Filippov <jcmvbkbc@xxxxxxxxx> > Cc: Heiko Carstens <hca@xxxxxxxxxxxxx> > Cc: Vasily Gorbik <gor@xxxxxxxxxxxxx> > Cc: Christian Borntraeger <borntraeger@xxxxxxxxxx> > --- > arch/alpha/kernel/srmcons.c | 7 ------- > arch/parisc/kernel/pdc_cons.c | 6 ------ > arch/xtensa/platforms/iss/console.c | 7 ------- > drivers/s390/char/tty3270.c | 12 ------------ > drivers/tty/pty.c | 17 ----------------- > drivers/tty/vt/vt.c | 6 ------ > 6 files changed, 55 deletions(-) Acked-by: Max Filippov <jcmvbkbc@xxxxxxxxx> # xtensa -- Thanks. -- Max
