sysctl: ia64 Use the compat_sys_sysctl

Now that we have a generic 32bit compatibility implementation
there is no need for ia64 to implement it's own.

Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>

2 files changed, 1 insertions, 56 deletions

diff --git a/arch/ia64/ia32/ia32_entry.S b/arch/ia64/ia32/ia32_entry.S
index af9405cd70e5..10c37510f4b4 100644
--- a/arch/ia64/ia32/ia32_entry.S
+++ b/arch/ia64/ia32/ia32_entry.S
@@ -327,7 +327,7 @@ ia32_syscall_table:
         data8 compat_sys_writev
         data8 sys_getsid
         data8 sys_fdatasync
-        data8 sys32_sysctl
+        data8 compat_sys_sysctl
         data8 sys_mlock           /* 150 */
         data8 sys_munlock
         data8 sys_mlockall
diff --git a/arch/ia64/ia32/sys_ia32.c b/arch/ia64/ia32/sys_ia32.c
index 625ed8f76fce..429ec968c9ee 100644
--- a/arch/ia64/ia32/sys_ia32.c
+++ b/arch/ia64/ia32/sys_ia32.c
@@ -1628,61 +1628,6 @@ sys32_msync (unsigned int start, unsigned int len, int flags)
         return sys_msync(addr, len + (start - addr), flags);
 }
 
-struct sysctl32 {
-        unsigned int    name;
-        int             nlen;
-        unsigned int    oldval;
-        unsigned int    oldlenp;
-        unsigned int    newval;
-        unsigned int    newlen;
-        unsigned int    __unused[4];
-};
-
-#ifdef CONFIG_SYSCTL_SYSCALL
-asmlinkage long
-sys32_sysctl (struct sysctl32 __user *args)
-{
-        struct sysctl32 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, args, 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 = (int __user *) 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
-
 asmlinkage long
 sys32_newuname (struct new_utsname __user *name)
 {