linux-kernel - Re: [PATCH v2 5/9] pps: Move timestamp read into PPS code proper

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Date:	Wed, 13 Feb 2013 10:16:28 -0800
From:	Greg KH <gregkh@...uxfoundation.org>
To:	George Spelvin <linux@...izon.com>
Cc:	linux-serial@...r.kernel.org, peter@...leysoftware.com,
	linux-kernel@...r.kernel.org, giometti@...ux.it
Subject: Re: [PATCH v2 5/9] pps: Move timestamp read into PPS code proper

On Tue, Feb 12, 2013 at 02:00:43AM -0500, George Spelvin wrote:
> 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

I also had to fix up:
	drivers/staging/dgrp/dgrp_*.c

to get things to build properly.

thanks,

greg k-h
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