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Diffstat (limited to 'include/linux/tty_ldisc.h')
-rw-r--r--include/linux/tty_ldisc.h7
1 files changed, 3 insertions, 4 deletions
diff --git a/include/linux/tty_ldisc.h b/include/linux/tty_ldisc.h
index af01e89074b2..d227a58e3e49 100644
--- a/include/linux/tty_ldisc.h
+++ b/include/linux/tty_ldisc.h
@@ -39,7 +39,6 @@ do { \
int ldsem_down_read(struct ld_semaphore *sem, long timeout);
int ldsem_down_read_trylock(struct ld_semaphore *sem);
int ldsem_down_write(struct ld_semaphore *sem, long timeout);
-int ldsem_down_write_trylock(struct ld_semaphore *sem);
void ldsem_up_read(struct ld_semaphore *sem);
void ldsem_up_write(struct ld_semaphore *sem);
@@ -267,7 +266,7 @@ struct tty_ldisc_ops {
};
struct tty_ldisc {
- struct tty_ldisc_ops *ops;
+ const struct tty_ldisc_ops *ops;
struct tty_struct *tty;
};
@@ -282,8 +281,8 @@ struct tty_ldisc *tty_ldisc_ref_wait(struct tty_struct *);
void tty_ldisc_flush(struct tty_struct *tty);
-int tty_register_ldisc(struct tty_ldisc_ops *new_ldisc);
-void tty_unregister_ldisc(struct tty_ldisc_ops *ldisc);
+int tty_register_ldisc(const struct tty_ldisc_ops *new_ldisc);
+void tty_unregister_ldisc(const struct tty_ldisc_ops *ldisc);
int tty_set_ldisc(struct tty_struct *tty, int disc);
#endif /* _LINUX_TTY_LDISC_H */