• George Spelvin's avatar
    pps: Move timestamp read into PPS code proper · 593fb1ae
    George Spelvin authored
    The PPS (Pulse-Per-Second) line discipline has developed a number of
    unhealthy attachments to core tty data and functions, ultimately leading
    to its breakage.
    
    The previous patches fixed the crashing.  This one reduces coupling further
    by eliminating the timestamp parameter from the dcd_change ldisc method.
    This reduces header file linkage and makes the extension more generic,
    and the timestamp read is delayed only slightly, from just before the
    ldisc->ops->dcd_change method call to just after.
    
    Fix attendant build breakage in
        drivers/tty/n_tty.c
        drivers/tty/tty_buffer.c
        drivers/staging/speakup/selection.c
        drivers/staging/dgrp/dgrp_*.c
    
    Cc: William Hubbs <w.d.hubbs@gmail.com>
    Cc: Chris Brannon <chris@the-brannons.com>
    Cc: Kirk Reiser <kirk@braille.uwo.ca>
    Cc: Samuel Thibault <samuel.thibault@ens-lyon.org>
    Signed-off-by: default avatarPeter Hurley <peter@hurleysoftware.com>
    Signed-off-by: default avatarGeorge Spelvin <linux@horizon.com>
    Acked-by: default avatarRodolfo Giometti <giometti@enneenne.com>
    Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
    593fb1ae
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