Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc

[cascardo/linux.git] / arch / sparc / lib / user_fixup.c

diff --git a/arch/sparc/lib/user_fixup.c b/arch/sparc/lib/user_fixup.c
deleted file mode 100644 (file)
index ac96ae2..0000000
--- a/arch/sparc/lib/user_fixup.c
+++ /dev/null
@@ -1,71 +0,0 @@
-/* user_fixup.c: Fix up user copy faults.
- *
- * Copyright (C) 2004 David S. Miller <davem@redhat.com>
- */
-
-#include <linux/compiler.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/errno.h>
-#include <linux/module.h>
-
-#include <asm/uaccess.h>
-
-/* Calculating the exact fault address when using
- * block loads and stores can be very complicated.
- *
- * Instead of trying to be clever and handling all
- * of the cases, just fix things up simply here.
- */
-
-static unsigned long compute_size(unsigned long start, unsigned long size, unsigned long *offset)
-{
-       unsigned long fault_addr = current_thread_info()->fault_address;
-       unsigned long end = start + size;
-
-       if (fault_addr < start || fault_addr >= end) {
-               *offset = 0;
-       } else {
-               *offset = fault_addr - start;
-               size = end - fault_addr;
-       }
-       return size;
-}
-
-unsigned long copy_from_user_fixup(void *to, const void __user *from, unsigned long size)
-{
-       unsigned long offset;
-
-       size = compute_size((unsigned long) from, size, &offset);
-       if (likely(size))
-               memset(to + offset, 0, size);
-
-       return size;
-}
-EXPORT_SYMBOL(copy_from_user_fixup);
-
-unsigned long copy_to_user_fixup(void __user *to, const void *from, unsigned long size)
-{
-       unsigned long offset;
-
-       return compute_size((unsigned long) to, size, &offset);
-}
-EXPORT_SYMBOL(copy_to_user_fixup);
-
-unsigned long copy_in_user_fixup(void __user *to, void __user *from, unsigned long size)
-{
-       unsigned long fault_addr = current_thread_info()->fault_address;
-       unsigned long start = (unsigned long) to;
-       unsigned long end = start + size;
-
-       if (fault_addr >= start && fault_addr < end)
-               return end - fault_addr;
-
-       start = (unsigned long) from;
-       end = start + size;
-       if (fault_addr >= start && fault_addr < end)
-               return end - fault_addr;
-
-       return size;
-}
-EXPORT_SYMBOL(copy_in_user_fixup);