From: Adrian Bunk <bunk@stusta.de>
Date: Tue, 6 Sep 2005 22:16:43 +0000 (-0700)
Subject: [PATCH] remove register_ioctl32_conversion and unregister_ioctl32_conversion
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=5dd42c262bd742fa3602180bbe5550b4828de8f3;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git

[PATCH] remove register_ioctl32_conversion and unregister_ioctl32_conversion

All users have been converted.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index 363909056e46..95e744353120 100644
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -51,14 +51,6 @@ Who:	Adrian Bunk <bunk@stusta.de>
 
 ---------------------------
 
-What:	register_ioctl32_conversion() / unregister_ioctl32_conversion()
-When:	April 2005
-Why:	Replaced by ->compat_ioctl in file_operations and other method
-	vecors.
-Who:	Andi Kleen <ak@muc.de>, Christoph Hellwig <hch@lst.de>
-
----------------------------
-
 What:	RCU API moves to EXPORT_SYMBOL_GPL
 When:	April 2006
 Files:	include/linux/rcupdate.h, kernel/rcupdate.c
diff --git a/fs/compat.c b/fs/compat.c
index 8e03d31eec3b..2eb03c49b07c 100644
--- a/fs/compat.c
+++ b/fs/compat.c
@@ -310,96 +310,6 @@ static int __init init_sys32_ioctl(void)
 
 __initcall(init_sys32_ioctl);
 
-int register_ioctl32_conversion(unsigned int cmd,
-				ioctl_trans_handler_t handler)
-{
-	struct ioctl_trans *t;
-	struct ioctl_trans *new_t;
-	unsigned long hash = ioctl32_hash(cmd);
-
-	new_t = kmalloc(sizeof(*new_t), GFP_KERNEL);
-	if (!new_t)
-		return -ENOMEM;
-
-	down_write(&ioctl32_sem);
-	for (t = ioctl32_hash_table[hash]; t; t = t->next) {
-		if (t->cmd == cmd) {
-			printk(KERN_ERR "Trying to register duplicated ioctl32 "
-					"handler %x\n", cmd);
-			up_write(&ioctl32_sem);
-			kfree(new_t);
-			return -EINVAL; 
-		}
-	}
-	new_t->next = NULL;
-	new_t->cmd = cmd;
-	new_t->handler = handler;
-	ioctl32_insert_translation(new_t);
-
-	up_write(&ioctl32_sem);
-	return 0;
-}
-EXPORT_SYMBOL(register_ioctl32_conversion);
-
-static inline int builtin_ioctl(struct ioctl_trans *t)
-{ 
-	return t >= ioctl_start && t < (ioctl_start + ioctl_table_size);
-} 
-
-/* Problem: 
-   This function cannot unregister duplicate ioctls, because they are not
-   unique.
-   When they happen we need to extend the prototype to pass the handler too. */
-
-int unregister_ioctl32_conversion(unsigned int cmd)
-{
-	unsigned long hash = ioctl32_hash(cmd);
-	struct ioctl_trans *t, *t1;
-
-	down_write(&ioctl32_sem);
-
-	t = ioctl32_hash_table[hash];
-	if (!t) { 
-		up_write(&ioctl32_sem);
-		return -EINVAL;
-	} 
-
-	if (t->cmd == cmd) { 
-		if (builtin_ioctl(t)) {
-			printk("%p tried to unregister builtin ioctl %x\n",
-			       __builtin_return_address(0), cmd);
-		} else { 
-			ioctl32_hash_table[hash] = t->next;
-			up_write(&ioctl32_sem);
-			kfree(t);
-			return 0;
-		}
-	} 
-	while (t->next) {
-		t1 = t->next;
-		if (t1->cmd == cmd) { 
-			if (builtin_ioctl(t1)) {
-				printk("%p tried to unregister builtin "
-					"ioctl %x\n",
-					__builtin_return_address(0), cmd);
-				goto out;
-			} else { 
-				t->next = t1->next;
-				up_write(&ioctl32_sem);
-				kfree(t1);
-				return 0;
-			}
-		}
-		t = t1;
-	}
-	printk(KERN_ERR "Trying to free unknown 32bit ioctl handler %x\n",
-				cmd);
-out:
-	up_write(&ioctl32_sem);
-	return -EINVAL;
-}
-EXPORT_SYMBOL(unregister_ioctl32_conversion); 
-
 static void compat_ioctl_error(struct file *filp, unsigned int fd,
 		unsigned int cmd, unsigned long arg)
 {
diff --git a/include/linux/ioctl32.h b/include/linux/ioctl32.h
index e8c4af32b3bb..948809d99917 100644
--- a/include/linux/ioctl32.h
+++ b/include/linux/ioctl32.h
@@ -14,26 +14,4 @@ struct ioctl_trans {
 	struct ioctl_trans *next;
 };
 
-/* 
- * Register an 32bit ioctl translation handler for ioctl cmd.
- *
- * handler == NULL: use 64bit ioctl handler.
- * arguments to handler:  fd: file descriptor
- *                        cmd: ioctl command.
- *                        arg: ioctl argument
- *                        struct file *file: file descriptor pointer.
- */ 
-
-#ifdef CONFIG_COMPAT
-extern int __deprecated register_ioctl32_conversion(unsigned int cmd,
-				ioctl_trans_handler_t handler);
-extern int __deprecated unregister_ioctl32_conversion(unsigned int cmd);
-
-#else
-
-#define register_ioctl32_conversion(cmd, handler)	({ 0; })
-#define unregister_ioctl32_conversion(cmd)		({ 0; })
-
-#endif
-
 #endif