diff options
Diffstat (limited to 'arch/x86/ia32/sys_ia32.c')
| -rw-r--r-- | arch/x86/ia32/sys_ia32.c | 56 | 
1 files changed, 0 insertions, 56 deletions
diff --git a/arch/x86/ia32/sys_ia32.c b/arch/x86/ia32/sys_ia32.c index 9f552719882..df82c0e48de 100644 --- a/arch/x86/ia32/sys_ia32.c +++ b/arch/x86/ia32/sys_ia32.c @@ -434,62 +434,6 @@ asmlinkage long sys32_rt_sigqueueinfo(int pid, int sig,  	return ret;  } -#ifdef CONFIG_SYSCTL_SYSCALL -struct sysctl_ia32 { -	unsigned int	name; -	int		nlen; -	unsigned int	oldval; -	unsigned int	oldlenp; -	unsigned int	newval; -	unsigned int	newlen; -	unsigned int	__unused[4]; -}; - - -asmlinkage long sys32_sysctl(struct sysctl_ia32 __user *args32) -{ -	struct sysctl_ia32 a32; -	mm_segment_t old_fs = get_fs(); -	void __user *oldvalp, *newvalp; -	size_t oldlen; -	int __user *namep; -	long ret; - -	if (copy_from_user(&a32, args32, sizeof(a32))) -		return -EFAULT; - -	/* -	 * We need to pre-validate these because we have to disable -	 * address checking before calling do_sysctl() because of -	 * OLDLEN but we can't run the risk of the user specifying bad -	 * addresses here.  Well, since we're dealing with 32 bit -	 * addresses, we KNOW that access_ok() will always succeed, so -	 * this is an expensive NOP, but so what... -	 */ -	namep = compat_ptr(a32.name); -	oldvalp = compat_ptr(a32.oldval); -	newvalp =  compat_ptr(a32.newval); - -	if ((oldvalp && get_user(oldlen, (int __user *)compat_ptr(a32.oldlenp))) -	    || !access_ok(VERIFY_WRITE, namep, 0) -	    || !access_ok(VERIFY_WRITE, oldvalp, 0) -	    || !access_ok(VERIFY_WRITE, newvalp, 0)) -		return -EFAULT; - -	set_fs(KERNEL_DS); -	lock_kernel(); -	ret = do_sysctl(namep, a32.nlen, oldvalp, (size_t __user *)&oldlen, -			newvalp, (size_t) a32.newlen); -	unlock_kernel(); -	set_fs(old_fs); - -	if (oldvalp && put_user(oldlen, (int __user *)compat_ptr(a32.oldlenp))) -		return -EFAULT; - -	return ret; -} -#endif -  /* warning: next two assume little endian */  asmlinkage long sys32_pread(unsigned int fd, char __user *ubuf, u32 count,  			    u32 poslo, u32 poshi)  |