linux-kernel - [PATCH] proc: remove proc_tty

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Date:	Wed, 9 Jul 2014 00:49:43 +0300
From:	Alexey Dobriyan <adobriyan@...il.com>
To:	akpm@...ux-foundation.org
Cc:	linux-kernel@...r.kernel.org
Subject: [PATCH] proc: remove proc_tty_ldisc variable

/proc/tty/ldisc appear to be unused as a directory and
it had been always that way.

But it is userspace visible thing.

Cowardly remove only in-kernel variable holding it.

Signed-off-by: Alexey Dobriyan <adobriyan@...il.com>
---

 fs/proc/proc_tty.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/fs/proc/proc_tty.c
+++ b/fs/proc/proc_tty.c
@@ -18,7 +18,7 @@
 /*
  * The /proc/tty directory inodes...
  */
-static struct proc_dir_entry *proc_tty_ldisc, *proc_tty_driver;
+static struct proc_dir_entry *proc_tty_driver;
 
 /*
  * This is the handler for /proc/tty/drivers
@@ -176,7 +176,7 @@ void __init proc_tty_init(void)
 {
 	if (!proc_mkdir("tty", NULL))
 		return;
-	proc_tty_ldisc = proc_mkdir("tty/ldisc", NULL);
+	proc_mkdir("tty/ldisc", NULL);
 	/*
 	 * /proc/tty/driver/serial reveals the exact character counts for
 	 * serial links which is just too easy to abuse for inferring
--
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