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tty: remove flags from struct tty_ldisc_ops 

The last user was apparently removed by commit a352def21a (tty: Ldisc
revamp) in 2008. So remove the field completely, the only setter
(n_tty_inherit_ops) and also its only possible value
(LDISC_FLAG_DEFINED).

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20210914091134.17426-2-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jiri Slaby 2021-09-14 11:11:20 +02:00 committed by Greg Kroah-Hartman
parent 4586c5fc45
commit b468e68824
2 changed files with 0 additions and 4 deletions
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1
drivers/tty/n_tty.c
View File

@ -2450,7 +2450,6 @@ void n_tty_inherit_ops(struct tty_ldisc_ops *ops)
{
*ops = n_tty_ops;
ops->owner = NULL;
ops->flags = 0;
}
EXPORT_SYMBOL_GPL(n_tty_inherit_ops);

3
include/linux/tty_ldisc.h
View File

@ -180,7 +180,6 @@ extern int ldsem_down_write_nested(struct ld_semaphore *sem, int subclass,
struct tty_ldisc_ops {
char *name;
int num;
int flags;
/*
* The following routines are called from above.
@ -220,8 +219,6 @@ struct tty_ldisc {
struct tty_struct *tty;
};
#define LDISC_FLAG_DEFINED 0x00000001
#define MODULE_ALIAS_LDISC(ldisc) \
MODULE_ALIAS("tty-ldisc-" __stringify(ldisc))