From e6d7202b66d99bf514c8e901db68386b1fcd6d56 Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung@gmail.com>
Date: Wed, 12 Jan 2011 17:00:37 -0800
Subject: fs/char_dev.c: remove unused cdev_index()

Commit 66fa12c571d3 ("ieee1394: remove the old IEEE 1394 driver stack")
eliminated the only user of cdev_index().  So it can be removed too.

Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Cc: Stefan Richter <stefanr@s5r6.in-berlin.de>
Cc: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/fs/char_dev.c b/fs/char_dev.c
index e5b9df9..6e99b9d 100644
--- a/fs/char_dev.c
+++ b/fs/char_dev.c
@@ -417,18 +417,6 @@ static int chrdev_open(struct inode *inode, struct file *filp)
 	return ret;
 }
 
-int cdev_index(struct inode *inode)
-{
-	int idx;
-	struct kobject *kobj;
-
-	kobj = kobj_lookup(cdev_map, inode->i_rdev, &idx);
-	if (!kobj)
-		return -1;
-	kobject_put(kobj);
-	return idx;
-}
-
 void cd_forget(struct inode *inode)
 {
 	spin_lock(&cdev_lock);
@@ -582,7 +570,6 @@ EXPORT_SYMBOL(cdev_init);
 EXPORT_SYMBOL(cdev_alloc);
 EXPORT_SYMBOL(cdev_del);
 EXPORT_SYMBOL(cdev_add);
-EXPORT_SYMBOL(cdev_index);
 EXPORT_SYMBOL(__register_chrdev);
 EXPORT_SYMBOL(__unregister_chrdev);
 EXPORT_SYMBOL(directly_mappable_cdev_bdi);
diff --git a/include/linux/cdev.h b/include/linux/cdev.h
index f389e31..fb45919 100644
--- a/include/linux/cdev.h
+++ b/include/linux/cdev.h
@@ -28,8 +28,6 @@ int cdev_add(struct cdev *, dev_t, unsigned);
 
 void cdev_del(struct cdev *);
 
-int cdev_index(struct inode *inode);
-
 void cd_forget(struct inode *);
 
 extern struct backing_dev_info directly_mappable_cdev_bdi;
-- 
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