arch: remove compat_alloc_user_space

[linux-2.6-microblaze.git] / kernel / compat.c

diff --git a/kernel/compat.c b/kernel/compat.c
index 05adfd6..5555198 100644 (file)
--- a/kernel/compat.c
+++ b/kernel/compat.c
@@ -269,24 +269,3 @@ get_compat_sigset(sigset_t *set, const compat_sigset_t __user *compat)
        return 0;
 }
 EXPORT_SYMBOL_GPL(get_compat_sigset);
-
-/*
- * Allocate user-space memory for the duration of a single system call,
- * in order to marshall parameters inside a compat thunk.
- */
-void __user *compat_alloc_user_space(unsigned long len)
-{
-       void __user *ptr;
-
-       /* If len would occupy more than half of the entire compat space... */
-       if (unlikely(len > (((compat_uptr_t)~0) >> 1)))
-               return NULL;
-
-       ptr = arch_compat_alloc_user_space(len);
-
-       if (unlikely(!access_ok(ptr, len)))
-               return NULL;
-
-       return ptr;
-}
-EXPORT_SYMBOL_GPL(compat_alloc_user_space);