[PATCH] proc: remove proc_tty_ldisc variable

From: Alexey Dobriyan
Date: Tue Jul 08 2014 - 17:49:49 EST


/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@xxxxxxxxx>
---

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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