rk: revert to v3.10

[firefly-linux-kernel-4.4.55.git] / arch / um / kernel / maccess.c

diff --git a/arch/um/kernel/maccess.c b/arch/um/kernel/maccess.c
deleted file mode 100644 (file)
index 1f3d5c4..0000000
--- a/arch/um/kernel/maccess.c
+++ /dev/null
@@ -1,24 +0,0 @@
-/*
- * Copyright (C) 2013 Richard Weinberger <richrd@nod.at>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/uaccess.h>
-#include <linux/kernel.h>
-#include <os.h>
-
-long probe_kernel_read(void *dst, const void *src, size_t size)
-{
-       void *psrc = (void *)rounddown((unsigned long)src, PAGE_SIZE);
-
-       if ((unsigned long)src < PAGE_SIZE || size <= 0)
-               return -EFAULT;
-
-       if (os_mincore(psrc, size + src - psrc) <= 0)
-               return -EFAULT;
-
-       return __probe_kernel_read(dst, src, size);
-}