diff options
| author |   Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> | 2022-08-16 14:57:35 +0300 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-08-30 14:22:34 +0200 |
| commit | d15f89d997d995c9a0bf5be5de4c1c405886f21c (patch) | |
| tree | 8ecce126f56ba968d823f3b790a201ba31936e78 | |
| parent | serial: dz: Assume previous baudrate is valid (diff) | |
| download | linux-dev-d15f89d997d995c9a0bf5be5de4c1c405886f21c.tar.xz linux-dev-d15f89d997d995c9a0bf5be5de4c1c405886f21c.zip | |
tty: Make tty_termios_copy_hw() old ktermios const
There should be no reason to adjust old ktermios which is going to get
discarded anyway.
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20220816115739.10928-5-ilpo.jarvinen@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/tty/tty_ioctl.c | 2 | ||||
| -rw-r--r-- | include/linux/tty.h | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/drivers/tty/tty_ioctl.c b/drivers/tty/tty_ioctl.c index 2a76b330e108..fc94988f0283 100644 --- a/drivers/tty/tty_ioctl.c +++ b/drivers/tty/tty_ioctl.c @@ -249,7 +249,7 @@ static void unset_locked_termios(struct tty_struct *tty, struct ktermios *old) * in some cases where only minimal reconfiguration is supported */ -void tty_termios_copy_hw(struct ktermios *new, struct ktermios *old) +void tty_termios_copy_hw(struct ktermios *new, const struct ktermios *old) { /* The bits a dumb device handles in software. Smart devices need to always provide a set_termios method */ diff --git a/include/linux/tty.h b/include/linux/tty.h index cf5ab26de73d..ae41893f8653 100644 --- a/include/linux/tty.h +++ b/include/linux/tty.h @@ -458,7 +458,7 @@ static inline speed_t tty_get_baud_rate(struct tty_struct *tty) unsigned char tty_get_char_size(unsigned int cflag); unsigned char tty_get_frame_size(unsigned int cflag); -void tty_termios_copy_hw(struct ktermios *new, struct ktermios *old); +void tty_termios_copy_hw(struct ktermios *new, const struct ktermios *old); int tty_termios_hw_change(const struct ktermios *a, const struct ktermios *b); int tty_set_termios(struct tty_struct *tty, struct ktermios *kt); |