diff options
| author | Johan Hovold <johan@kernel.org> | 2017-06-06 12:54:37 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-06-13 11:49:58 +0200 |
| commit | 6086380a5576239bd5bfaa175364550b38223ba6 (patch) | |
| tree | 5d7d55d9de9a3cc4e90fd02cae66fe2c24365f3b /drivers/tty | |
| parent | 8535796579fd08f226878212b39b2682064d41b7 (diff) | |
| download | linux-6086380a5576239bd5bfaa175364550b38223ba6.tar.gz linux-6086380a5576239bd5bfaa175364550b38223ba6.tar.bz2 linux-6086380a5576239bd5bfaa175364550b38223ba6.zip | |
tty: amiserial: drop broken alt-speed support
Setting an alt_speed using the ASYNC_SPD flags has been deprecated since
v2.1.69, and has been broken since v3.10 and commit 6865ff222cca ("TTY:
do not warn about setting speed via SPD_*") without anyone noticing.
Drop the broken alt-speed handling altogether, and add a ratelimited
warning about using TIOCCSERIAL to change speed as being deprecated.
Note that using ASYNC_SPD_CUST is still supported.
Signed-off-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/amiserial.c | 23 |
1 files changed, 3 insertions, 20 deletions
diff --git a/drivers/tty/amiserial.c b/drivers/tty/amiserial.c index dea16bb8c46a..9820e20993db 100644 --- a/drivers/tty/amiserial.c +++ b/drivers/tty/amiserial.c @@ -570,18 +570,6 @@ static int startup(struct tty_struct *tty, struct serial_state *info) info->xmit.head = info->xmit.tail = 0; /* - * Set up the tty->alt_speed kludge - */ - if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI) - tty->alt_speed = 57600; - if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI) - tty->alt_speed = 115200; - if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI) - tty->alt_speed = 230400; - if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP) - tty->alt_speed = 460800; - - /* * and set the speed of the serial port */ change_speed(tty, info, NULL); @@ -1084,14 +1072,9 @@ static int set_serial_info(struct tty_struct *tty, struct serial_state *state, check_and_exit: if (tty_port_initialized(port)) { if (change_spd) { - if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI) - tty->alt_speed = 57600; - if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI) - tty->alt_speed = 115200; - if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI) - tty->alt_speed = 230400; - if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP) - tty->alt_speed = 460800; + /* warn about deprecation unless clearing */ + if (new_serial.flags & ASYNC_SPD_MASK) + dev_warn_ratelimited(tty->dev, "use of SPD flags is deprecated\n"); change_speed(tty, state, NULL); } } else |