diff options
Diffstat (limited to 'arch/sparc64/lib/user_fixup.c')
| -rw-r--r-- | arch/sparc64/lib/user_fixup.c | 71 |
1 files changed, 0 insertions, 71 deletions
diff --git a/arch/sparc64/lib/user_fixup.c b/arch/sparc64/lib/user_fixup.c deleted file mode 100644 index 0278e34125d..00000000000 --- a/arch/sparc64/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 <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. - */ - -unsigned long copy_from_user_fixup(void *to, const void __user *from, unsigned long size) -{ - char *dst = to; - const char __user *src = from; - - while (size) { - if (__get_user(*dst, src)) - break; - dst++; - src++; - size--; - } - - if (size) - memset(dst, 0, size); - - return size; -} - -unsigned long copy_to_user_fixup(void __user *to, const void *from, unsigned long size) -{ - char __user *dst = to; - const char *src = from; - - while (size) { - if (__put_user(*src, dst)) - break; - dst++; - src++; - size--; - } - - return size; -} - -unsigned long copy_in_user_fixup(void __user *to, void __user *from, unsigned long size) -{ - char __user *dst = to; - char __user *src = from; - - while (size) { - char tmp; - - if (__get_user(tmp, src)) - break; - if (__put_user(tmp, dst)) - break; - dst++; - src++; - size--; - } - - return size; -} |
