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tty: Return bool from tty_termios_hw_change()

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Change tty_termios_hw_change() to return bool.

Reviewed-by: Jiri Slaby <jirislaby@kernel.org>
Reviewed-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20230117090358.4796-11-ilpo.jarvinen@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ilpo Järvinen 2023-01-17 11:03:56 +02:00 committed by Greg Kroah-Hartman
parent 968d64578e
commit 87f22db4c2
2 changed files with 5 additions and 5 deletions
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8
drivers/tty/tty_ioctl.c
View File

@ -270,13 +270,13 @@ EXPORT_SYMBOL(tty_termios_copy_hw);
* between the two termios structures, or a speed change is needed.
*/
int tty_termios_hw_change(const struct ktermios *a, const struct ktermios *b)
bool 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;
return true;
if ((a->c_cflag ^ b->c_cflag) & ~(HUPCL | CREAD | CLOCAL))
return 1;
return 0;
return true;
return false;
}
EXPORT_SYMBOL(tty_termios_hw_change);

2
include/linux/tty.h
View File

@ -453,7 +453,7 @@ 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, const struct ktermios *old);
int tty_termios_hw_change(const struct ktermios *a, const struct ktermios *b);
bool tty_termios_hw_change(const struct ktermios *a, const struct ktermios *b);
int tty_set_termios(struct tty_struct *tty, struct ktermios *kt);
void tty_wakeup(struct tty_struct *tty);