diff options
| author | Johan Hovold <johan@kernel.org> | 2018-05-21 13:08:44 +0200 |
|---|---|---|
| committer | Johan Hovold <johan@kernel.org> | 2018-05-22 10:08:05 +0200 |
| commit | 7b0c6b38c4f9f9736ccd41363b3cfd7143e1f823 (patch) | |
| tree | 156c532f1176791fe7e09e51f61a2c473c327e91 | |
| parent | df1cd63d6d112e4a1402166dacc411ccca9b09ac (diff) | |
| download | linux-7b0c6b38c4f9f9736ccd41363b3cfd7143e1f823.tar.bz2 | |
tty: add missing const to termios hw-change helper
Add missing const qualifiers to the parameters of the termios hw-change
helper, which is used by a few USB serial drivers. This specifically
allows the pl2303 driver to use const arguments in one of its helper as
well.
Cc: Jiri Slaby <jslaby@suse.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.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 d9b561d89432..d99fec44036c 100644 --- a/drivers/tty/tty_ioctl.c +++ b/drivers/tty/tty_ioctl.c @@ -290,7 +290,7 @@ EXPORT_SYMBOL(tty_termios_copy_hw); * between the two termios structures, or a speed change is needed. */ -int tty_termios_hw_change(struct ktermios *a, struct ktermios *b) +int tty_termios_hw_change(const struct ktermios *a, const struct ktermios *b) { if (a->c_ispeed != b->c_ispeed || a->c_ospeed != b->c_ospeed) return 1; diff --git a/include/linux/tty.h b/include/linux/tty.h index 1dd587ba6d88..955cd0c93d84 100644 --- a/include/linux/tty.h +++ b/include/linux/tty.h @@ -527,7 +527,7 @@ static inline speed_t tty_get_baud_rate(struct tty_struct *tty) } extern void tty_termios_copy_hw(struct ktermios *new, struct ktermios *old); -extern int tty_termios_hw_change(struct ktermios *a, struct ktermios *b); +extern int tty_termios_hw_change(const struct ktermios *a, const struct ktermios *b); extern int tty_set_termios(struct tty_struct *tty, struct ktermios *kt); extern struct tty_ldisc *tty_ldisc_ref(struct tty_struct *); |