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--- npreal2.c 2022-12-15 12:56:56.314313178 +0100
+++ npreal2.c 2023-01-02 08:40:08.501468104 +0100
@@ -425,8 +425,8 @@
static int npreal_ioctl(struct tty_struct *,uint,ulong);
static void npreal_throttle(struct tty_struct *);
static void npreal_unthrottle(struct tty_struct *);
-static void npreal_set_termios(struct tty_struct *,struct ktermios *);
-static int npreal_port_init(struct npreal_struct *,struct ktermios *);
+static void npreal_set_termios(struct tty_struct *,const struct ktermios *);
+static int npreal_port_init(struct npreal_struct *,const struct ktermios *);
static void npreal_stop(struct tty_struct *);
static void npreal_start(struct tty_struct *);
static void npreal_hangup(struct tty_struct *);
@@ -1612,7 +1612,7 @@
* where old == NULL, and try to do something rational.
*/
static void npreal_set_termios(struct tty_struct * tty,
- struct ktermios * old_termios)
+ const struct ktermios * old_termios)
{
struct npreal_struct *info = (struct npreal_struct *)tty->driver_data;
@@ -2174,7 +2174,7 @@
* set npreal serial state
*/
static int npreal_port_init(struct npreal_struct *info,
- struct ktermios *old_termios)
+ const struct ktermios *old_termios)
{
struct ktermios *termio;
int32_t baud,mode;
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