From: Jiri Slaby <jslaby@suse.cz>
Date: Tue, 14 Sep 2021 09:11:20 +0000 (+0200)
Subject: tty: remove flags from struct tty_ldisc_ops
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=b468e688240b58ece498c430c377bb81b78a41f1;p=linux.git

tty: remove flags from struct tty_ldisc_ops

The last user was apparently removed by commit a352def21a64 (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>
---

diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index 0ec93f1a61f5d..797af5d46cbe9 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -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);
 
diff --git a/include/linux/tty_ldisc.h b/include/linux/tty_ldisc.h
index b1d812e902aad..1f37184eee633 100644
--- a/include/linux/tty_ldisc.h
+++ b/include/linux/tty_ldisc.h
@@ -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))