Commit d15f89d9 authored by Ilpo Järvinen's avatar Ilpo Järvinen Committed by Greg Kroah-Hartman
Browse files

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: default avatarAndy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: default avatarIlpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20220816115739.10928-5-ilpo.jarvinen@linux.intel.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent c87391b5

drivers/tty/tty_ioctl.c

+1 −1
Original line number Diff line number Diff line
@@ -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 */

include/linux/tty.h

+1 −1
Original line number Diff line number Diff line
@@ -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);