From 5dd42c262bd742fa3602180bbe5550b4828de8f3 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Tue, 6 Sep 2005 15:16:43 -0700 Subject: [PATCH] [PATCH] remove register_ioctl32_conversion and unregister_ioctl32_conversion All users have been converted. Signed-off-by: Adrian Bunk Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/feature-removal-schedule.txt | 8 -- fs/compat.c | 90 ---------------------- include/linux/ioctl32.h | 22 ------ 3 files changed, 120 deletions(-) diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt index 363909056e..95e7443531 100644 --- a/Documentation/feature-removal-schedule.txt +++ b/Documentation/feature-removal-schedule.txt @@ -51,14 +51,6 @@ Who: Adrian Bunk --------------------------- -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 , Christoph Hellwig - ---------------------------- - 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 8e03d31eec..2eb03c49b0 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 e8c4af32b3..948809d999 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 -- 2.39.5