diff options
| author | Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> | 2022-08-16 14:57:32 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-08-30 14:22:34 +0200 |
| commit | 87888fb9ac0c71cdc1edd0779382052475dadb84 (patch) | |
| tree | 988f9f9b61119e7ed9db887a0996bbe41d734e06 /drivers/tty/tty.h | |
| parent | eb9e109d010cb79ab01d8562e851d53bcecf059b (diff) | |
| download | lwn-87888fb9ac0c71cdc1edd0779382052475dadb84.tar.gz lwn-87888fb9ac0c71cdc1edd0779382052475dadb84.zip | |
tty: Remove baudrate dead code & make ktermios params const
With the architectures currently in-tree, either:
1) CBAUDEX is zero
2) The earlier BOTHER if check covers cbaud < 1 case
3) All CBAUD bits are covered by the baud_table
Thus, the check for cbaud being out-of-range for CBAUDEX case cannot
ever be true.
The ktermios parameters can now be made const.
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20220816115739.10928-2-ilpo.jarvinen@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/tty.h')
| -rw-r--r-- | drivers/tty/tty.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/tty/tty.h b/drivers/tty/tty.h index f310a8274df1..1c08c9b67b16 100644 --- a/drivers/tty/tty.h +++ b/drivers/tty/tty.h @@ -73,7 +73,7 @@ void tty_buffer_set_lock_subclass(struct tty_port *port); bool tty_buffer_restart_work(struct tty_port *port); bool tty_buffer_cancel_work(struct tty_port *port); void tty_buffer_flush_work(struct tty_port *port); -speed_t tty_termios_input_baud_rate(struct ktermios *termios); +speed_t tty_termios_input_baud_rate(const struct ktermios *termios); void tty_ldisc_hangup(struct tty_struct *tty, bool reset); int tty_ldisc_reinit(struct tty_struct *tty, int disc); long tty_ioctl(struct file *file, unsigned int cmd, unsigned long arg); |