On Wed, Nov 05, 2014 at 06:26:29PM +0100, Peter Hurley wrote:
> ASYNC_SPLIT_TERMIOS behavior is a remnant of the long-dead /dev/cuaXX
> callout device. Split termios handling was removed tree-wide in v2.5.71 by:
>
> commit 99a21edebbfd8c29e39ee7fcc8a1ffa423657290
> Author: Alexander Viro <viro@xxxxxxxxxxxxxxxx>
> Date: Wed Jun 11 07:41:28 2003 -0700
>
> [PATCH] tty_driver refcounting
>
> killed the last remnants of callout stuff - we don't need to mess with
> storing termios privately anymore.
>
> which pre-dated the re-introduction into the cris serial driver
> in v2.6.7 by:
>
> commit 311a5ffeda8ccb3f1f3840069f37234e043092d4
> Author: Andrew Morton <akpm@xxxxxxxx>
> Date: Mon May 31 18:52:29 2004 -0700
>
> [PATCH] CRIS architecture update
>
> From: "Mikael Starvik" <mikael.starvik@xxxxxxxx>
>
> - Lots of fixes from 2.4.
>
> - Updated for 2.6.6.
>
> - Added IDE driver
>
> Cc: Mikael Starvik <starvik@xxxxxxxx>
Agreed.
Acked-by: Jesper Nilsson <jesper.nilsson@xxxxxxxx>
> Signed-off-by: Peter Hurley <peter@xxxxxxxxxxxxxxxxxx>
> ---
> drivers/tty/serial/crisv10.c | 12 ------------
> drivers/tty/serial/crisv10.h | 1 -
> 2 files changed, 13 deletions(-)
>
> diff --git a/drivers/tty/serial/crisv10.c b/drivers/tty/serial/crisv10.c
> index 58e6f61..0c1825b 100644
> --- a/drivers/tty/serial/crisv10.c
> +++ b/drivers/tty/serial/crisv10.c
> @@ -3676,12 +3676,6 @@ rs_close(struct tty_struct *tty, struct file * filp)
> }
> info->port.flags |= ASYNC_CLOSING;
> /*
> - * Save the termios structure, since this port may have
> - * separate termios for callout and dialin.
> - */
> - if (info->port.flags & ASYNC_NORMAL_ACTIVE)
> - info->normal_termios = tty->termios;
> - /*
> * Now we wait for the transmit buffer to clear; and we notify
> * the line discipline to only process XON/XOFF characters.
> */
> @@ -4076,11 +4070,6 @@ rs_open(struct tty_struct *tty, struct file * filp)
> return retval;
> }
>
> - if ((info->port.count == 1) && (info->port.flags & ASYNC_SPLIT_TERMIOS)) {
> - tty->termios = info->normal_termios;
> - change_speed(info);
> - }
> -
> #ifdef SERIAL_DEBUG_OPEN
> printk("rs_open ttyS%d successful...\n", info->line);
> #endif
> @@ -4327,7 +4316,6 @@ static int __init rs_init(void)
> info->custom_divisor = 0;
> info->x_char = 0;
> info->event = 0;
> - info->normal_termios = driver->init_termios;
> info->xmit.buf = NULL;
> info->xmit.tail = info->xmit.head = 0;
> info->first_recv_buffer = info->last_recv_buffer = NULL;
> diff --git a/drivers/tty/serial/crisv10.h b/drivers/tty/serial/crisv10.h
> index 7599014..15a52ee 100644
> --- a/drivers/tty/serial/crisv10.h
> +++ b/drivers/tty/serial/crisv10.h
> @@ -98,7 +98,6 @@ struct e100_serial {
>
> struct work_struct work;
> struct async_icount icount; /* error-statistics etc.*/
> - struct ktermios normal_termios;
>
> unsigned long char_time_usec; /* The time for 1 char, in usecs */
> unsigned long flush_time_usec; /* How often we should flush */
> --
> 2.1.3
/^JN - Jesper Nilsson
--
Jesper Nilsson -- jesper.nilsson@xxxxxxxx
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