bkl: Remove locked .ioctl file operation

The last user is gone, so we can safely remove this

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: John Kacur <jkacur@redhat.com>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
diff --git a/fs/proc/inode.c b/fs/proc/inode.c
index 23561cd..9c2b5f4 100644
--- a/fs/proc/inode.c
+++ b/fs/proc/inode.c
@@ -214,8 +214,7 @@
 {
 	struct proc_dir_entry *pde = PDE(file->f_path.dentry->d_inode);
 	long rv = -ENOTTY;
-	long (*unlocked_ioctl)(struct file *, unsigned int, unsigned long);
-	int (*ioctl)(struct inode *, struct file *, unsigned int, unsigned long);
+	long (*ioctl)(struct file *, unsigned int, unsigned long);
 
 	spin_lock(&pde->pde_unload_lock);
 	if (!pde->proc_fops) {
@@ -223,19 +222,11 @@
 		return rv;
 	}
 	pde->pde_users++;
-	unlocked_ioctl = pde->proc_fops->unlocked_ioctl;
-	ioctl = pde->proc_fops->ioctl;
+	ioctl = pde->proc_fops->unlocked_ioctl;
 	spin_unlock(&pde->pde_unload_lock);
 
-	if (unlocked_ioctl) {
-		rv = unlocked_ioctl(file, cmd, arg);
-		if (rv == -ENOIOCTLCMD)
-			rv = -EINVAL;
-	} else if (ioctl) {
-		WARN_ONCE(1, "Procfs ioctl handlers must use unlocked_ioctl, "
-			  "%pf will be called without the Bkl held\n", ioctl);
-		rv = ioctl(file->f_path.dentry->d_inode, file, cmd, arg);
-	}
+	if (ioctl)
+		rv = ioctl(file, cmd, arg);
 
 	pde_users_dec(pde);
 	return rv;