[PATCH] remove register_ioctl32_conversion and unregister_ioctl32_conversion

[safe/jmp/linux-2.6] / fs / compat.c

diff --git a/fs/compat.c b/fs/compat.c
index 8e03d31..2eb03c4 100644 (file)
--- 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)
 {